sqlserver中执行jar包报错

jar包在sqlserver中执行exec xp_cmdshell 'java -jar E:/sender.jar' 报错:Error: Unable to access jarfile E:/sender.jar,在cmd命令行中运行可以,
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sqlserver 中定位不到你的jar包

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连接sql server,eclipse上运行正常,打成jar包运行报ssl错误是怎么回事?

rt,怎么解决啊? 2.870: Application time: 0.0229056 seconds 2.871: Total time for which application threads were stopped: 0.0004390 seconds, Stopping threads took: 0.0000192 seconds 2.878: Application time: 0.0071433 seconds 2.878: Total time for which application threads were stopped: 0.0001217 seconds, Stopping threads took: 0.0000243 seconds Nov 28, 2018 3:07:47 PM com.microsoft.sqlserver.jdbc.TDSChannel enableSSL 信息: java.security path: E:\Java\jre1.8.0_191\lib\security Security providers: [SUN version 1.8, SunRsaSign version 1.8, SunJSSE version 1. 8, SunJGSS version 1.8, SunSASL version 1.8, XMLDSig version 1.8, SunPCSC versio n 1.8] SSLContext provider info: Sun JSSE provider(PKCS12, SunX509/PKIX key/trust facto ries, SSLv3/TLSv1/TLSv1.1/TLSv1.2) SSLContext provider services: [SunJSSE: KeyFactory.RSA -> sun.security.rsa.RSAKeyFactory aliases: [1.2.840.113549.1.1, OID.1.2.840.113549.1.1] , SunJSSE: KeyPairGenerator.RSA -> sun.security.rsa.RSAKeyPairGenerator aliases: [1.2.840.113549.1.1, OID.1.2.840.113549.1.1] , SunJSSE: Signature.MD2withRSA -> sun.security.rsa.RSASignature$MD2withRSA aliases: [1.2.840.113549.1.1.2, OID.1.2.840.113549.1.1.2] , SunJSSE: Signature.MD5withRSA -> sun.security.rsa.RSASignature$MD5withRSA aliases: [1.2.840.113549.1.1.4, OID.1.2.840.113549.1.1.4] , SunJSSE: Signature.SHA1withRSA -> sun.security.rsa.RSASignature$SHA1withRSA aliases: [1.2.840.113549.1.1.5, OID.1.2.840.113549.1.1.5, 1.3.14.3.2.29, OID.1 .3.14.3.2.29] , SunJSSE: Signature.MD5andSHA1withRSA -> sun.security.ssl.RSASignature , SunJSSE: KeyManagerFactory.SunX509 -> sun.security.ssl.KeyManagerFactoryImpl$S unX509 , SunJSSE: KeyManagerFactory.NewSunX509 -> sun.security.ssl.KeyManagerFactoryImp l$X509 aliases: [PKIX] , SunJSSE: TrustManagerFactory.SunX509 -> sun.security.ssl.TrustManagerFactoryIm pl$SimpleFactory , SunJSSE: TrustManagerFactory.PKIX -> sun.security.ssl.TrustManagerFactoryImpl$ PKIXFactory aliases: [SunPKIX, X509, X.509] , SunJSSE: SSLContext.TLSv1 -> sun.security.ssl.SSLContextImpl$TLS10Context aliases: [SSLv3] , SunJSSE: SSLContext.TLSv1.1 -> sun.security.ssl.SSLContextImpl$TLS11Context , SunJSSE: SSLContext.TLSv1.2 -> sun.security.ssl.SSLContextImpl$TLS12Context , SunJSSE: SSLContext.TLS -> sun.security.ssl.SSLContextImpl$TLSContext aliases: [SSL] , SunJSSE: SSLContext.Default -> sun.security.ssl.SSLContextImpl$DefaultSSLConte xt , SunJSSE: KeyStore.PKCS12 -> sun.security.pkcs12.PKCS12KeyStore ] java.ext.dirs: libs org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception. JDBCConnectionException: Could not open connection at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegi n(HibernateTransactionManager.java:544) at org.springframework.transaction.support.AbstractPlatformTransactionMa nager.getTransaction(AbstractPlatformTransactionManager.java:373) at org.springframework.transaction.interceptor.TransactionAspectSupport. createTransactionIfNecessary(TransactionAspectSupport.java:430) at org.springframework.transaction.interceptor.TransactionAspectSupport. invokeWithinTransaction(TransactionAspectSupport.java:276) at org.springframework.transaction.interceptor.TransactionInterceptor.in voke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed( ReflectiveMethodInvocation.java:179) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invok e(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed( ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynami cAopProxy.java:208) at com.sun.proxy.$Proxy30.getRobotUserInfo(Unknown Source) at com.inkstd.ISGameSGS.hall.HallRobotManager.getRobotUser(HallRobotMana ger.java:59) at com.inkstd.ISGameSGS.hall.HallRobotManager.<init>(HallRobotManager.ja va:49) at com.inkstd.ISGameSGS.core.balance.ServerImpl.initManagers(ServerImpl. java:159) at com.inkstd.ISGameSGS.core.balance.ServerImpl.bind(ServerImpl.java:90) at com.inkstd.ISGameSGS.GameServer.bindZookeeper(GameServer.java:90) at com.inkstd.ISGameSGS.GameServer.main(GameServer.java:62) Caused by: org.hibernate.exception.JDBCConnectionException: Could not open conne ction at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(S QLStateConversionDelegate.java:131) at org.hibernate.exception.internal.StandardSQLExceptionConverter.conver t(StandardSQLExceptionConverter.java:49) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlException Helper.java:125) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlException Helper.java:110) at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnec tion(LogicalConnectionImpl.java:221) at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnectio n(LogicalConnectionImpl.java:157) at org.hibernate.internal.SessionImpl.connection(SessionImpl.java:549) at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegi n(HibernateTransactionManager.java:450) ... 15 more Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: 驱动程序无法通过使用 安全套接字层(SSL)加密与 SQL Server 建立安全连接。错误:“Server key”。 ClientCon nectionId:f5f47b4a-74c9-478d-9fd1-e3e90413bab0 at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerC onnection.java:1667) at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1668) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLSer verConnection.java:1323) at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConne ction.java:991) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerCon nection.java:827) at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver. java:1012) at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManag erDataSource.java:119) at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnecti on(WrapperConnectionPoolDataSource.java:143) at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnecti on(WrapperConnectionPoolDataSource.java:132) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.initializeAu tomaticTestTable(C3P0PooledConnectionPoolManager.java:772) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.createPooled ConnectionPool(C3P0PooledConnectionPoolManager.java:696) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0 PooledConnectionPoolManager.java:257) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0 PooledConnectionPoolManager.java:271) at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(A bstractPoolBackedDataSource.java:128) at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionP roviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectio nAccess.obtainConnection(AbstractSessionImpl.java:292) at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnec tion(LogicalConnectionImpl.java:214) ... 18 more Caused by: javax.net.ssl.SSLException: Server key at sun.security.ssl.Handshaker.throwSSLException(Unknown Source) at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source) at sun.security.ssl.Handshaker.processLoop(Unknown Source) at sun.security.ssl.Handshaker.process_record(Unknown Source) at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source ) at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1618) ... 33 more Caused by: java.security.NoSuchAlgorithmException: Error constructing implementa tion (algorithm: MD5andSHA1withRSA, provider: SunJSSE, class: sun.security.ssl.R SASignature) at java.security.Provider$Service.newInstance(Unknown Source) at sun.security.jca.GetInstance.getInstance(Unknown Source) at java.security.Signature.getInstance(Unknown Source) at sun.security.ssl.JsseJce.getSignature(Unknown Source) at sun.security.ssl.RSASignature.getInstance(Unknown Source) at sun.security.ssl.HandshakeMessage$DH_ServerKeyExchange.<init>(Unknown Source) ... 41 more Caused by: java.security.NoSuchAlgorithmException: NONEwithRSA Signature not ava ilable at java.security.Signature.getInstance(Unknown Source) at sun.security.ssl.JsseJce.getSignature(Unknown Source) at sun.security.ssl.RSASignature.<init>(Unknown Source) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou rce) at java.lang.reflect.Constructor.newInstance(Unknown Source) ... 47 more 2018-11-28 15:07:48.026 [main] ERROR com.inkstd.ISGameSGS.core.balance.ServerImp l:165 initManagers - 初始化管理器异常.....org.springframework.transaction.Cannot CreateTransactionException: Could not open Hibernate Session for transaction; ne sted exception is org.hibernate.exception.JDBCConnectionException: Could not ope n connection ``` ```

eclipse导入连接数据库需要的三个jar包后,还是连不上数据库

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![图片说明](https://img-ask.csdn.net/upload/201907/26/1564100265_687777.jpg)![图片说明](https://img-ask.csdn.net/upload/201907/26/1564100427_344362.jpg) ![图片说明](https://img-ask.csdn.net/upload/201907/26/1564100545_57510.jpg) 配置文件 .yml ``` spring: http: multipart: enabled: false mvc: static-path-pattern: /static/** resources: static-locations: classpath:/static thymeleaf: prefix: classpath:/templates/ suffix: .html cache: false check-template: true check-template-location: true enabled: true encoding: UTF-8 mode: HTML devtools: restart: enabled: true #设置开启热部署 datasource: type: com.alibaba.druid.pool.DruidDataSource druid: driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://localhost:3306/eims?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC username: root password: root # 初始化大小,最大,最小 initial-size: 1 max-active: 20 min-idle: 1 # 配置获取连接等待超时的时间 max-wait: 60000 # 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 time-between-eviction-runs-millis: 60000 # 配置一个连接在池中最小生存的时间,单位是毫秒 min-evictable-idle-time-millis: 300000 validation-query: select 'x' test-while-idle: true test-on-borrow: false test-on-return: false # 打开PSCache,并且指定每个连接上PSCache的大小 pool-prepared-statements: true max-open-prepared-statements: 20 filters: stat,wall,slf4j jpa: show-sql: true database: mysql hibernate: ddl-auto: update properties: hibernate: format_sql: true server: port: 8080 ## 该配置节点为独立的节点,若将这个配置放在spring的节点下,会导致配置无法被识别 mybatis: mapper-locations: classpath:mapper/*.xml type-aliases-package: org.dream.www.eims.pojo ``` pom ``` <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>org.dream.www</groupId> <artifactId>eims</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>eims</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--Thymeleaf--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <!--aop--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <!--mybatis--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--热部署--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> <!--JPA--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <!--德鲁伊--> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.10</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.10</version> </dependency> <!--省去get set--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <!--aop--> <dependency> <groupId>net.sourceforge.nekohtml</groupId> <artifactId>nekohtml</artifactId> <version>1.9.21</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.41</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <!--该配置必须--> <fork>true</fork> </configuration> </plugin> </plugins> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> </resources> </build> </project> ```

SSH项目发布启动后报错

一个SSH的项目,用Eclipse新建了一个工程,把原有的项目的.settings、src、web、java_test 四个文件覆盖了进去,项目没有报错,然后发布启动后404无法访问,日志如下,\web\WEB-INF\lib下的jar包我已经全部导入了,我查好像是说spring-web这个包没找到,但是我已经导进去了,刚参加工作不久经验太少了,求大神帮忙看看是什么问题 ``` 八月 03, 2015 10:31:23 上午 org.apache.catalina.core.AprLifecycleListener init 信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_45\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_45/bin/server;C:/Program Files/Java/jre1.8.0_45/bin;C:/Program Files/Java/jre1.8.0_45/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files (x86)\Java\jdk1.8.0_45\bin;C:\Program Files (x86)\Java\jdk1.8.0_45\db\bin;D:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn\;D:\Program Files (x86)\Microsoft SQL Server\100\DTS\Binn\;D:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Java\jdk1.8.0_45\bin;D:\Maven\apache-maven-3.3.3\bin;C:\Program Files\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\PrivateAssemblies\;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\;D:\Eclipse;;. 八月 03, 2015 10:31:23 上午 org.apache.tomcat.util.digester.SetPropertiesRule begin 警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:CasJob' did not find a matching property. 八月 03, 2015 10:31:23 上午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-bio-8080"] 八月 03, 2015 10:31:23 上午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["ajp-bio-8009"] 八月 03, 2015 10:31:23 上午 org.apache.catalina.startup.Catalina load 信息: Initialization processed in 722 ms 八月 03, 2015 10:31:23 上午 org.apache.catalina.core.StandardService startInternal 信息: Starting service Catalina 八月 03, 2015 10:31:23 上午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/7.0.42 八月 03, 2015 10:31:28 上午 org.apache.catalina.startup.TaglibUriRule body 信息: TLD skipped. URI: http://www.extremecomponents.org is already defined 八月 03, 2015 10:31:28 上午 org.apache.catalina.core.StandardContext listenerStart 严重: Error configuring application listener of class org.apache.catalina.deploy.ApplicationListener@601ba7cb java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4854) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) 八月 03, 2015 10:31:28 上午 org.apache.catalina.core.StandardContext listenerStart 严重: Error configuring application listener of class org.apache.catalina.deploy.ApplicationListener@730287da java.lang.ClassNotFoundException: org.springframework.web.context.request.RequestContextListener at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4854) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) 八月 03, 2015 10:31:28 上午 org.apache.catalina.core.StandardContext listenerStart 严重: Error configuring application listener of class org.apache.catalina.deploy.ApplicationListener@478f3763 java.lang.ClassNotFoundException: org.springframework.web.util.IntrospectorCleanupListener at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4854) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) 八月 03, 2015 10:31:28 上午 org.apache.catalina.core.StandardContext listenerStart 严重: Skipped installing application listeners due to previous error(s) 八月 03, 2015 10:31:28 上午 org.apache.catalina.core.StandardContext startInternal 严重: Error listenerStart 八月 03, 2015 10:31:28 上午 org.apache.catalina.util.SessionIdGenerator createSecureRandom 信息: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [205] milliseconds. 八月 03, 2015 10:31:28 上午 org.apache.catalina.core.StandardContext startInternal 严重: Context [/CasJob] startup failed due to previous errors 八月 03, 2015 10:31:28 上午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory C:\xampp\tomcat\webapps\docs 八月 03, 2015 10:31:28 上午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory C:\xampp\tomcat\webapps\examples 八月 03, 2015 10:31:29 上午 org.apache.catalina.core.ApplicationContext log 信息: ContextListener: contextInitialized() 八月 03, 2015 10:31:29 上午 org.apache.catalina.core.ApplicationContext log 信息: SessionListener: contextInitialized() 八月 03, 2015 10:31:29 上午 org.apache.catalina.core.ApplicationContext log 信息: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@1221e05a') 八月 03, 2015 10:31:29 上午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory C:\xampp\tomcat\webapps\host-manager 八月 03, 2015 10:31:29 上午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory C:\xampp\tomcat\webapps\manager 八月 03, 2015 10:31:29 上午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory C:\xampp\tomcat\webapps\ROOT 八月 03, 2015 10:31:29 上午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["http-bio-8080"] 八月 03, 2015 10:31:29 上午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["ajp-bio-8009"] 八月 03, 2015 10:31:29 上午 org.apache.catalina.startup.Catalina start 信息: Server startup in 5474 ms ```

java打包jar 后数据库连不上

myeclipse 2015 CI JDK 1.8 XP ODBC-sqlserver2005 在myeclipse中一切正常 导出后不能连接数据库 求解 异常: (https://img-ask.csdn.net/upload/201508/09/1439130368_199091.jpg)

使用jdbc链接sqlserver 2008出现Could not get JDBC Connection,项目可以启动,但不能访问数据库

JDBC:![图片说明](https://img-ask.csdn.net/upload/201909/03/1567504614_704721.png) mybatis:![图片说明](https://img-ask.csdn.net/upload/201909/03/1567504645_758618.png) jar包没问题,可以正常连接2005的数据库,链接这个2008的就不行了,求助各位大神啊 报错代码:### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (I/O Error: Connection reset)] with root cause java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:209) at java.net.SocketInputStream.read(SocketInputStream.java:141) at java.io.DataInputStream.readFully(DataInputStream.java:195) at java.io.DataInputStream.readFully(DataInputStream.java:169) at net.sourceforge.jtds.jdbc.SharedSocket.readPacket(SharedSocket.java:842) at net.sourceforge.jtds.jdbc.SharedSocket.getNetPacket(SharedSocket.java:723) at net.sourceforge.jtds.jdbc.ResponseStream.getPacket(ResponseStream.java:466) at net.sourceforge.jtds.jdbc.ResponseStream.read(ResponseStream.java:103) at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2206) at net.sourceforge.jtds.jdbc.TdsCore.login(TdsCore.java:603) at net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC2.java:357) at net.sourceforge.jtds.jdbc.ConnectionJDBC3.<init>(ConnectionJDBC3.java:50) at net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:184) at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38) at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582) at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556) at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:84) at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:70) at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336) at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434) at com.sun.proxy.$Proxy17.selectList(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231) at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:137) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:75) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) at com.sun.proxy.$Proxy21.getproList(Unknown Source) at com.ytxd.service.DuplicateCheck.DuplicateCheckServiceImpl.getproList(DuplicateCheckServiceImpl.java:333) at com.ytxd.controller.DuplicateCheck.DuplicateCheck_Controller.GetList(DuplicateCheck_Controller.java:44) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) at org.apache.coyote.http11.Http11Proce ssor.service(Http11Processor.java:783) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745)

myeclipse连接sql数据库的错误

jdk版本是1.8的,sqljdbc4,能兼容sql2012的,一切都是按照网上教程来的,但是还是会报错, Exception in thread "main" java.lang.UnsupportedClassVersionError: com/microsoft/sqlserver/jdbc/SQLServerDriver : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:190) at com.util.DB.main(DB.java:14) 麻烦帮我看看

求助!!wildfly单机部署war包时启动失败,报错。

我是在idea把正常运行的项目打成war包放在了wildfly(10和17两个版本都试了)的standalone\deployments目录下,然后直接运行standalone.bat的。启动时报错,无法加载bean。但是放到tomcat可以正常启动运行。 查遍中外文档和提问,还是没有解决。日志信息如下。 ``` 2019-06-13 14:20:54,155 INFO [org.jboss.modules] (main) JBoss Modules version 1.9.1.Final 2019-06-13 14:20:54,643 INFO [org.jboss.msc] (main) JBoss MSC version 1.4.7.Final 2019-06-13 14:20:54,653 INFO [org.jboss.threads] (main) JBoss Threads version 2.3.3.Final 2019-06-13 14:20:54,752 INFO [org.jboss.as] (MSC service thread 1-2) WFLYSRV0049: WildFly Full 17.0.0.Final (WildFly Core 9.0.1.Final) starting 2019-06-13 14:20:54,753 DEBUG [org.jboss.as.config] (MSC service thread 1-2) Configured system properties: awt.toolkit = sun.awt.windows.WToolkit file.encoding = GBK file.encoding.pkg = sun.io file.separator = \ java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment java.awt.printerjob = sun.awt.windows.WPrinterJob java.class.path = D:\widefly\wildfly-17.0.0.Final\jboss-modules.jar java.class.version = 52.0 java.endorsed.dirs = D:\jdk1.8\jre\lib\endorsed java.ext.dirs = D:\jdk1.8\jre\lib\ext;C:\Windows\Sun\Java\lib\ext java.home = D:\jdk1.8\jre java.io.tmpdir = C:\Users\Lenovo\AppData\Local\Temp\ java.library.path = D:\jdk1.8\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;D:\jdk1.8\bin;D:\jdk1.8\jre\bin;C:\Program Files\TortoiseSVN\bin;D:\Maven\apache-maven-3.3.9\bin;D:\widefly\wildfly-17.0.0.Final\bin;C:\Users\Lenovo\AppData\Local\Programs\Python\Python37\Scripts\;C:\Users\Lenovo\AppData\Local\Programs\Python\Python37\;C:\Users\Lenovo\AppData\Local\Microsoft\WindowsApps;;. java.net.preferIPv4Stack = true java.runtime.name = Java(TM) SE Runtime Environment java.runtime.version = 1.8.0_211-b12 java.specification.name = Java Platform API Specification java.specification.vendor = Oracle Corporation java.specification.version = 1.8 java.util.logging.manager = org.jboss.logmanager.LogManager java.vendor = Oracle Corporation java.vendor.url = http://java.oracle.com/ java.vendor.url.bug = http://bugreport.sun.com/bugreport/ java.version = 1.8.0_211 java.vm.info = mixed mode java.vm.name = Java HotSpot(TM) 64-Bit Server VM java.vm.specification.name = Java Virtual Machine Specification java.vm.specification.vendor = Oracle Corporation java.vm.specification.version = 1.8 java.vm.vendor = Oracle Corporation java.vm.version = 25.211-b12 javax.management.builder.initial = org.jboss.as.jmx.PluggableMBeanServerBuilder jboss.home.dir = D:\widefly\wildfly-17.0.0.Final jboss.host.name = desktop-e1tfeli jboss.modules.dir = D:\widefly\wildfly-17.0.0.Final\modules jboss.modules.system.pkgs = org.jboss.byteman jboss.node.name = desktop-e1tfeli jboss.qualified.host.name = desktop-e1tfeli jboss.server.base.dir = D:\widefly\wildfly-17.0.0.Final\standalone jboss.server.config.dir = D:\widefly\wildfly-17.0.0.Final\standalone\configuration jboss.server.data.dir = D:\widefly\wildfly-17.0.0.Final\standalone\data jboss.server.deploy.dir = D:\widefly\wildfly-17.0.0.Final\standalone\data\content jboss.server.log.dir = D:\widefly\wildfly-17.0.0.Final\standalone\log jboss.server.name = desktop-e1tfeli jboss.server.persist.config = true jboss.server.temp.dir = D:\widefly\wildfly-17.0.0.Final\standalone\tmp line.separator = logging.configuration = file:D:\widefly\wildfly-17.0.0.Final\standalone\configuration/logging.properties module.path = D:\widefly\wildfly-17.0.0.Final\modules org.jboss.boot.log.file = D:\widefly\wildfly-17.0.0.Final\standalone\log\server.log org.jboss.resolver.warning = true os.arch = amd64 os.name = Windows 10 os.version = 10.0 path.separator = ; program.name = standalone.bat sun.arch.data.model = 64 sun.boot.class.path = D:\jdk1.8\jre\lib\resources.jar;D:\jdk1.8\jre\lib\rt.jar;D:\jdk1.8\jre\lib\sunrsasign.jar;D:\jdk1.8\jre\lib\jsse.jar;D:\jdk1.8\jre\lib\jce.jar;D:\jdk1.8\jre\lib\charsets.jar;D:\jdk1.8\jre\lib\jfr.jar;D:\jdk1.8\jre\classes sun.boot.library.path = D:\jdk1.8\jre\bin sun.cpu.endian = little sun.cpu.isalist = amd64 sun.desktop = windows sun.io.unicode.encoding = UnicodeLittle sun.java.command = D:\widefly\wildfly-17.0.0.Final\jboss-modules.jar -mp D:\widefly\wildfly-17.0.0.Final\modules org.jboss.as.standalone -Djboss.home.dir=D:\widefly\wildfly-17.0.0.Final sun.java.launcher = SUN_STANDARD sun.jnu.encoding = GBK sun.management.compiler = HotSpot 64-Bit Tiered Compilers sun.os.patch.level = sun.stderr.encoding = ms936 sun.stdout.encoding = ms936 user.country = CN user.dir = D:\widefly\wildfly-17.0.0.Final\bin user.home = C:\Users\Lenovo user.language = zh user.name = Lenovo user.script = user.timezone = Asia/Shanghai user.variant = 2019-06-13 14:20:54,754 DEBUG [org.jboss.as.config] (MSC service thread 1-2) VM Arguments: -Dprogram.name=standalone.bat -Xms128M -Xmx2048M -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=512m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Dorg.jboss.boot.log.file=D:\widefly\wildfly-17.0.0.Final\standalone\log\server.log -Dlogging.configuration=file:D:\widefly\wildfly-17.0.0.Final\standalone\configuration/logging.properties 2019-06-13 14:20:55,611 INFO [org.wildfly.security] (ServerService Thread Pool -- 28) ELY00001: WildFly Elytron version 1.9.1.Final 2019-06-13 14:20:56,314 INFO [org.jboss.as.controller.management-deprecated] (Controller Boot Thread) WFLYCTL0028: Attribute 'security-realm' in the resource at address '/core-service=management/management-interface=http-interface' is deprecated, and may be removed in a future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation. 2019-06-13 14:20:56,336 INFO [org.jboss.as.controller.management-deprecated] (ServerService Thread Pool -- 11) WFLYCTL0028: Attribute 'security-realm' in the resource at address '/subsystem=undertow/server=default-server/https-listener=https' is deprecated, and may be removed in a future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation. 2019-06-13 14:20:57,497 INFO [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0039: Creating http management service using socket-binding (management-http) 2019-06-13 14:20:57,511 INFO [org.xnio] (MSC service thread 1-6) XNIO version 3.7.2.Final 2019-06-13 14:20:57,518 INFO [org.xnio.nio] (MSC service thread 1-6) XNIO NIO Implementation Version 3.7.2.Final 2019-06-13 14:20:57,546 INFO [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 51) WFLYCLINF0001: Activating Infinispan subsystem. 2019-06-13 14:20:57,550 INFO [org.wildfly.extension.microprofile.config.smallrye._private] (ServerService Thread Pool -- 60) WFLYCONF0001: Activating WildFly MicroProfile Config Subsystem 2019-06-13 14:20:57,559 INFO [org.wildfly.extension.microprofile.opentracing] (ServerService Thread Pool -- 63) WFLYTRACEXT0001: Activating MicroProfile OpenTracing Subsystem 2019-06-13 14:20:57,560 WARN [org.jboss.as.txn] (ServerService Thread Pool -- 72) WFLYTX0013: The node-identifier attribute on the /subsystem=transactions is set to the default value. This is a danger for environments running multiple servers. Please make sure the attribute value is unique. 2019-06-13 14:20:57,589 INFO [org.jboss.as.webservices] (ServerService Thread Pool -- 74) WFLYWS0002: Activating WebServices Extension 2019-06-13 14:20:57,595 INFO [org.wildfly.extension.io] (ServerService Thread Pool -- 52) WFLYIO001: Worker 'default' has auto-configured to 16 core threads with 128 task threads based on your 8 available processors 2019-06-13 14:20:57,598 INFO [org.wildfly.extension.microprofile.health.smallrye] (ServerService Thread Pool -- 61) WFLYHEALTH0001: Activating Eclipse MicroProfile Health Subsystem 2019-06-13 14:20:57,599 INFO [org.jboss.as.naming] (ServerService Thread Pool -- 64) WFLYNAM0001: Activating Naming Subsystem 2019-06-13 14:20:57,611 INFO [org.jboss.as.security] (ServerService Thread Pool -- 70) WFLYSEC0002: Activating Security Subsystem 2019-06-13 14:20:57,621 INFO [org.jboss.as.jaxrs] (ServerService Thread Pool -- 53) WFLYRS0016: RESTEasy version 3.7.0.Final 2019-06-13 14:20:57,626 INFO [org.jboss.as.jsf] (ServerService Thread Pool -- 58) WFLYJSF0007: Activated the following JSF Implementations: [main] 2019-06-13 14:20:57,635 INFO [org.jboss.as.connector] (MSC service thread 1-7) WFLYJCA0009: Starting JCA Subsystem (WildFly/IronJacamar 1.4.16.Final) 2019-06-13 14:20:57,637 INFO [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 43) WFLYJCA0004: Deploying JDBC-compliant driver class org.h2.Driver (version 1.4) 2019-06-13 14:20:57,639 INFO [org.jboss.as.security] (MSC service thread 1-3) WFLYSEC0001: Current PicketBox version=5.0.3.Final 2019-06-13 14:20:57,645 INFO [org.wildfly.extension.microprofile.metrics.smallrye] (ServerService Thread Pool -- 62) WFLYMETRICS0001: Activating Eclipse MicroProfile Metrics Subsystem 2019-06-13 14:20:57,719 INFO [io.smallrye.metrics] (MSC service thread 1-2) Converted [2] config entries and added [4] replacements 2019-06-13 14:20:57,727 INFO [org.wildfly.extension.undertow] (MSC service thread 1-6) WFLYUT0003: Undertow 2.0.21.Final starting 2019-06-13 14:20:57,730 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-4) WFLYJCA0018: Started Driver service with driver-name = h2 2019-06-13 14:20:57,735 INFO [io.smallrye.metrics] (MSC service thread 1-2) Converted [3] config entries and added [14] replacements 2019-06-13 14:20:57,755 INFO [org.jboss.as.naming] (MSC service thread 1-4) WFLYNAM0003: Starting Naming Service 2019-06-13 14:20:57,786 INFO [org.jboss.remoting] (MSC service thread 1-6) JBoss Remoting version 5.0.12.Final 2019-06-13 14:20:57,786 INFO [org.jboss.as.mail.extension] (MSC service thread 1-4) WFLYMAIL0001: Bound mail session [java:jboss/mail/Default] 2019-06-13 14:20:57,871 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 73) WFLYUT0014: Creating file handler for path 'D:\widefly\wildfly-17.0.0.Final/welcome-content' with options [directory-listing: 'false', follow-symlink: 'false', case-sensitive: 'true', safe-symlink-paths: '[]'] 2019-06-13 14:20:57,930 INFO [org.jboss.as.ejb3] (MSC service thread 1-4) WFLYEJB0482: Strict pool mdb-strict-max-pool is using a max instance size of 32 (per class), which is derived from the number of CPUs on this host. 2019-06-13 14:20:57,930 INFO [org.jboss.as.ejb3] (MSC service thread 1-2) WFLYEJB0481: Strict pool slsb-strict-max-pool is using a max instance size of 128 (per class), which is derived from thread worker pool sizing. 2019-06-13 14:20:57,962 INFO [org.wildfly.extension.undertow] (MSC service thread 1-6) WFLYUT0012: Started server default-server. 2019-06-13 14:20:57,970 INFO [org.wildfly.extension.undertow] (MSC service thread 1-7) WFLYUT0018: Host default-host starting 2019-06-13 14:20:58,046 INFO [org.wildfly.extension.undertow] (MSC service thread 1-3) WFLYUT0006: Undertow HTTP listener default listening on 127.0.0.1:8080 2019-06-13 14:20:58,105 INFO [org.jboss.as.ejb3] (MSC service thread 1-7) WFLYEJB0493: EJB subsystem suspension complete 2019-06-13 14:20:58,173 INFO [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-8) WFLYJCA0001: Bound data source [java:jboss/datasources/ExampleDS] 2019-06-13 14:20:58,278 INFO [org.jboss.as.patching] (MSC service thread 1-8) WFLYPAT0050: WildFly Full cumulative patch ID is: base, one-off patches include: none 2019-06-13 14:20:58,294 INFO [org.jboss.as.server.deployment.scanner] (MSC service thread 1-1) WFLYDS0013: Started FileSystemDeploymentService for directory D:\widefly\wildfly-17.0.0.Final\standalone\deployments 2019-06-13 14:20:58,303 INFO [org.jboss.as.server.deployment] (MSC service thread 1-7) WFLYSRV0027: Starting deployment of "jeeplus.war" (runtime-name: "jeeplus.war") 2019-06-13 14:20:58,561 INFO [org.wildfly.extension.undertow] (MSC service thread 1-1) WFLYUT0006: Undertow HTTPS listener https listening on 127.0.0.1:8443 2019-06-13 14:20:58,636 INFO [org.jboss.ws.common.management] (MSC service thread 1-6) JBWS022052: Starting JBossWS 5.3.0.Final (Apache CXF 3.3.2) 2019-06-13 14:22:01,638 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry xbean.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/batik-js-1.7.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,652 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry avalon-framework-4.2.0.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,652 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry batik-all-1.6.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,653 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry commons-io-1.3.1.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,654 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry commons-logging-1.0.4.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,655 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry fop-hyph.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,655 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry jai_codec.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,656 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry jai_core.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,656 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry jimi.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,657 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry serializer-2.7.0.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,657 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry servlet-2.2.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,658 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry xalan-2.7.0.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,662 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry xercesImpl-2.7.1.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,664 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry xml-apis-1.3.02.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,664 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry xmlunit1.0.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/fop-0.94.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,676 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry ridl.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/juh-2.3.0.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,676 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry jurt.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/juh-2.3.0.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,677 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry ridl.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/jurt-2.3.0.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,678 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry unoloader.jar in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/jurt-2.3.0.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,678 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry ../../lib/ in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/jurt-2.3.0.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:01,679 WARN [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0059: Class Path entry ../bin/ in /D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/lib/jurt-2.3.0.jar does not point to a valid jar for a Class-Path reference. 2019-06-13 14:22:03,113 WARN [org.jboss.as.ee] (MSC service thread 1-7) WFLYEE0007: Not installing optional component org.springframework.http.server.ServletServerHttpAsyncRequestControl due to an exception (enable DEBUG log level to see the cause) 2019-06-13 14:22:03,113 WARN [org.jboss.as.ee] (MSC service thread 1-7) WFLYEE0007: Not installing optional component org.springframework.web.context.request.async.StandardServletAsyncWebRequest due to an exception (enable DEBUG log level to see the cause) 2019-06-13 14:22:03,151 INFO [org.infinispan.factories.GlobalComponentRegistry] (MSC service thread 1-8) ISPN000128: Infinispan version: Infinispan 'Infinity Minus ONE +2' 9.4.14.Final 2019-06-13 14:22:03,202 WARN [org.jboss.as.jaxrs] (MSC service thread 1-7) WFLYRS0018: Explicit usage of Jackson annotation in a JAX-RS deployment; the system will disable JSON-B processing for the current deployment. Consider setting the 'resteasy.preferJacksonOverJsonB' property to 'false' to restore JSON-B. 2019-06-13 14:22:03,206 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0004: Deploying JDBC-compliant driver class com.alibaba.druid.proxy.DruidDriver (version 4.0) 2019-06-13 14:22:03,213 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0004: Deploying JDBC-compliant driver class com.alibaba.druid.mock.MockDriver (version 0.0) 2019-06-13 14:22:03,214 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0004: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3) 2019-06-13 14:22:03,216 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0005: Deploying non-JDBC-compliant driver class net.sourceforge.jtds.jdbc.Driver (version 1.3) 2019-06-13 14:22:03,224 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0005: Deploying non-JDBC-compliant driver class com.mysql.cj.jdbc.Driver (version 8.0) 2019-06-13 14:22:03,228 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0005: Deploying non-JDBC-compliant driver class org.postgresql.Driver (version 42.1) 2019-06-13 14:22:03,229 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0005: Deploying non-JDBC-compliant driver class org.apache.solr.client.solrj.io.sql.DriverImpl (version 1.0) 2019-06-13 14:22:03,269 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-3) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war_org.h2.Driver_1_3 2019-06-13 14:22:03,270 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-3) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war_net.sourceforge.jtds.jdbc.Driver_1_3 2019-06-13 14:22:03,270 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-2) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war_com.alibaba.druid.proxy.DruidDriver_4_0 2019-06-13 14:22:03,271 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-4) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war_com.mysql.cj.jdbc.Driver_8_0 2019-06-13 14:22:03,270 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-7) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war_com.alibaba.druid.mock.MockDriver_0_0 2019-06-13 14:22:03,271 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-1) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war 2019-06-13 14:22:03,276 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-6) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war_org.apache.solr.client.solrj.io.sql.DriverImpl_1_0 2019-06-13 14:22:03,277 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-6) WFLYJCA0018: Started Driver service with driver-name = jeeplus.war_org.postgresql.Driver_42_1 2019-06-13 14:22:03,471 INFO [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 78) WFLYCLINF0002: Started client-mappings cache from ejb container 2019-06-13 14:22:03,586 INFO [io.undertow.servlet] (ServerService Thread Pool -- 111) No Spring WebApplicationInitializer types detected on classpath 2019-06-13 14:22:03,600 INFO [io.undertow.servlet] (ServerService Thread Pool -- 111) Set web app root system property: 'webapp.root' = [D:\widefly\wildfly-17.0.0.Final\standalone\tmp\vfs\temp\temp5858f9dbed7b899b\content-8652ab40c8a74b5c] 2019-06-13 14:22:03,603 INFO [io.undertow.servlet] (ServerService Thread Pool -- 111) Initializing log4j from [classpath:properties/log4j.properties] 2019-06-13 14:22:08,112 WARN [org.springframework.beans.factory.support.DefaultListableBeanFactory] (ServerService Thread Pool -- 111) Bean creation exception on non-lazy FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'actMapper' defined in VFS resource ["/D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/classes/com/jeeplus/modules/act/mapper/ActMapper.class"]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-context.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException 2019-06-13 14:22:09,473 WARN [org.springframework.beans.factory.support.DefaultListableBeanFactory] (ServerService Thread Pool -- 111) Bean creation exception on non-lazy FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'actNodeSetingInfoMapper' defined in VFS resource ["/D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/classes/com/jeeplus/modules/act/mapper/ActNodeSetingInfoMapper.class"]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-context.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException 2019-06-13 14:22:10,806 WARN [org.springframework.beans.factory.support.DefaultListableBeanFactory] (ServerService Thread Pool -- 111) Bean creation exception on non-lazy FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'actSetingInfoMapper' defined in VFS resource ["/D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/classes/com/jeeplus/modules/act/mapper/ActSetingInfoMapper.class"]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-context.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException 2019-06-13 14:22:11,979 WARN [org.springframework.beans.factory.support.DefaultListableBeanFactory] (ServerService Thread Pool -- 111) Bean creation exception on non-lazy FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testPieClassMapper' defined in VFS resource ["/D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/classes/com/jeeplus/modules/echarts/mapper/other/TestPieClassMapper.class"]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-context.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException 2019-06-13 14:22:13,133 WARN [org.springframework.beans.factory.support.DefaultListableBeanFactory] (ServerService Thread Pool -- 111) Bean creation exception on non-lazy FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'TExamQusetionUserMapper' defined in VFS resource ["/D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/classes/com/jeeplus/modules/examque/mapper/TExamQusetionUserMapper.class"]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-context.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException 2019-06-13 14:22:14,159 WARN [org.springframework.beans.factory.support.DefaultListableBeanFactory] (ServerService Thread Pool -- 111) Bean creation exception on non-lazy FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'examQuestionMapper' defined in VFS resource ["/D:/widefly/wildfly-17.0.0.Final/bin/content/jeeplus.war/WEB-INF/classes/com/jeeplus/modules/examquestion/mapper/ExamQuestionMapper.class"]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-context.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException ``` ![报错信息1](https://img-ask.csdn.net/upload/201906/13/1560407452_637434.png) ![报错信息2](https://img-ask.csdn.net/upload/201906/13/1560407517_691665.png)

jpa使用@Query查询报错SQL Error: 1064, SQLState: 42000

我的sql ![图片说明](https://img-ask.csdn.net/upload/201812/25/1545728806_126381.png) sql里没有和mysql的关键字重复,但是报错SQL Error: 1064, SQLState: 42000 ``` Hibernate: select com.wangyou.waimai.model.goods.Goods g.goodsId, g.goodsName, g.goodsIcon, gs.goodsPrice from GoodsBean g, GoodsStandardPriceBean gs, TypeStandardBean ts where g.goodsId = gs.goodsId and ts.id = gs.standardId and g.shopId = 50 and g.goodsType = 48 and g.goodsState = 1 and g.regionId = 1 and gs.standardId = 35 2018-12-25 16:46:40.471 WARN 7208 --- [io-18668-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 1064, SQLState: 42000 2018-12-25 16:46:40.474 ERROR 7208 --- [io-18668-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.model.goods.Goods g.goodsId, g.goodsName, g.goodsIcon, gs.goodsPrice from Goods' at line 1 2018-12-25 16:46:40.508 ERROR 7208 --- [io-18668-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet] with root cause java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.model.goods.Goods g.goodsId, g.goodsName, g.goodsIcon, gs.goodsPrice from Goods' at line 1 at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.13.jar:8.0.13] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.13.jar:8.0.13] at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.13.jar:8.0.13] at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:974) ~[mysql-connector-java-8.0.13.jar:8.0.13] at com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:1024) ~[mysql-connector-java-8.0.13.jar:8.0.13] at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52) ~[HikariCP-3.2.0.jar:na] at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java) ~[HikariCP-3.2.0.jar:na] at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:60) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.getResultSet(Loader.java:2167) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1930) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1892) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.doQuery(Loader.java:937) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:340) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.doList(Loader.java:2689) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.doList(Loader.java:2672) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2506) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.Loader.list(Loader.java:2501) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:338) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:2223) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.internal.AbstractSharedSessionContract.list(AbstractSharedSessionContract.java:1053) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.query.internal.NativeQueryImpl.doList(NativeQueryImpl.java:170) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1505) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.hibernate.query.Query.getResultList(Query.java:135) ~[hibernate-core-5.3.7.Final.jar:5.3.7.Final] at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:129) ~[spring-data-jpa-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:91) ~[spring-data-jpa-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:136) ~[spring-data-jpa-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:125) ~[spring-data-jpa-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:605) ~[spring-data-commons-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$invoke$3(RepositoryFactorySupport.java:595) ~[spring-data-commons-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:595) ~[spring-data-commons-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59) ~[spring-data-commons-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135) ~[spring-data-jpa-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61) ~[spring-data-commons-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.1.3.RELEASE.jar:5.1.3.RELEASE] at com.sun.proxy.$Proxy148.selectZhuGoods(Unknown Source) ~[na:na] at com.wangyou.waimai.service.goods.GoodsService.findByShopId(GoodsService.java:65) ~[classes/:na] at com.wangyou.waimai.controller.user.UsersController.enterPurchase(UsersController.java:417) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_102] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_102] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_102] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_102] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) ~[spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:117) ~[spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:106) ~[spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) [tomcat-embed-core-9.0.13.jar:9.0.13] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.13.jar:9.0.13] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_102] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_102] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.13.jar:9.0.13] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102] ```

eclipse中已经导入jdbc包了,但加载时还是发生异常

如题,导入方式是:右键项目--properties操作,但加载时还是发生“classnotfound“异常,但是居然能获取连接。以下是我源代码: package com.demo; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class AData { private static String url="jdbc:mysql://127.0.0.1:3306/book?characterEncoding=utf8&useSSL=false"; private static final String user="root"; private static final String pass="123456"; Connection con; public Connection getConnection(){ try{ Class.forName("com.mysql.jdbc.driver"); System.out.println("加载成功"); } catch(Exception e){ e.printStackTrace(); } try{ con=DriverManager.getConnection(url,user,pass); System.out.println("成功获取连接"); } catch(Exception e){ e.printStackTrace(); } return con; } public static void main(String [] args){ AData c=new AData(); c.getConnection(); } }

ant运行报错NoClassDefFoundError

执行ant -version报错: java.lang.NoClassDefFoundError: org/apache/tools/ant/launch/AntMain %ANT_HOME% D:\apache-ant-1.8.4 %CLASSPATH% D:\apache-ant-1.8.4\lib %PATH% C:\Program Files\Java\jdk1.8.0\Bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;C:\Program Files (x86)\Windows Kits\8.0\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;D:\Program Files\TortoiseSVN\bin;C:\Program Files\maven\bin;C:\Program Files\Java\jdk1.8.0\Bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;C:\Program Files (x86)\Windows Kits\8.0\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;D:\Program Files\TortoiseSVN\bin;C:\Program Files\maven\bin;D:\apache-ant-1.8.4\bin

idea2019连接数据报错,希望大神帮忙看看啥原因谢谢

- 我的连接远程数据库后报了这个错,平时用navicat连没啥问题,应该不是驱动jar包的问题,因为是idea自己下的,我同事mac上的idea人家连接就没有问题,我把她的驱动jar包替换过来报一样的错 - 报错信息:[S1000] Could not retrieve transaction read-only status from server [HY000] [1193] Unknown system variable 'transaction_read_only' - 连接本地的数据库就可以正常打开表格 - 报错图片如下 ![图片说明](https://img-ask.csdn.net/upload/201907/31/1564558062_30972.png)

Myeclipse运行web项目,连接数据库的时候,报错

Myeclipse运行web项目,连接数据库的时候,报错: 数据库连接成功! java.sql.SQLException: Unknown initial character set index '46' received from server. Initial client character set can be forced via the 'characterEncoding' property. 网上说的在url后面加上?useUnicode=true&characterEncoding=utf-8,试过了,没用。还是一样的报错,还有网上说的删除掉web-INF下的lib下的mysql-connenctor-java的jar包,也试过了,还是不行。

java使用jdbc调用存储过程,没有返回结果集。。

整个过程是这样的:之前的程序已经上线运行了。后来客户数据库升级,从sqlServer2005升级到sqlServer2008.当然系统也做了相应改动。我们是第三方软件,调用他们的数据库中的存储过程来查询数据。他们升级完系统和数据库之后,我们就查询数据报错。 然后最先报的错是驱动版本问题。我就到网上下了sqljdbc4.jar。替换了之后不再报驱动的问题。但是一直无结果集。于是我直接把调用存储过程的sql语句放到数据库中执行。是能查到结果的。然后,我又把sql语句换成一个简单的select语句。这下有结果集了。那么问题出在哪?该怎么改? ``` Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance(); con = DriverManager.getConnection("jdbc:sqlserver://10.4.2.10:1433;databaseName=cmp_jxt_jmpt","jmpt_open","jmpt_open*1nl0#"); // proc_stmt = con.prepareCall(" exec dbo.Proc_Jmpt_ReturnTemp 'bmtz','"+sfzjh+"',5 "); proc_stmt = con.prepareCall("select top 5 userId,loginTime,refreshtime from user_online_data"); // proc_stmt.setString(1, "bmtz"); // proc_stmt.setString(2, sfzjh); // proc_stmt.setString(3, "5"); rs = proc_stmt.executeQuery(); while (rs.next()) { String newsId = rs.getString("userId"); String title = rs.getString("loginTime"); String detName = rs.getString("refreshtime"); // String addDate = rs.getString("addDate"); // OA_BMTZ t = new OA_BMTZ(); // t.setNewsId(rs.getString("newsId")); // t.setTitle(rs.getString("title")); // t.setDetName(rs.getString("detName")); // t.setAddDate(rs.getString("addDate")); // list.add(t); } ``` 代码中可以看出我的修改轨迹。 问题出在哪,请大神指点迷经。

求大神帮帮忙,eclipse开发中,用jdbc连接数据库,加载驱动运行报错

这是我加载驱动的代码: String sql="select * from parkinfo where city='"+myCity+"'"; Random random=new Random(); try { Class.forName("org.gjt.mm.mysql.Driver"); conn=DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/park", "root", "root"); //PreparedStatement pst=conn.prepareStatement(sql); //pst.setString(1, myCity); //ResultSet rs=pst.executeQuery(); Statement st=conn.createStatement(); ResultSet rs=st.executeQuery(sql); int remain=random.nextInt(rs.getInt("space")); List<Info> myCityInfo=new ArrayList<Info>(); if(rs.next()){ myCityInfo.add(new Info(rs.getDouble("latitude"), rs.getDouble("longitude"), R.drawable.my_car, rs.getString("name"), rs.getString("address"), remain, rs.getInt("charge"), rs.getInt("reserve"))); } addOverlays(myCityInfo); st.close(); conn.close(); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } 已经为MySQL包(jar)添加路径了,运行时控制台console出现下面情况,看不到的错误啊 UNEXPECTED TOP-LEVEL EXCEPTION: com.android.dx.cf.iface.ParseException: bad class file magic (cafebabe) or version (0034.0000) at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:472) at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:406) at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:388) at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:251) at com.android.dx.command.dexer.Main.processClass(Main.java:665) at com.android.dx.command.dexer.Main.processFileBytes(Main.java:634) at com.android.dx.command.dexer.Main.access$600(Main.java:78) at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:572) at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284) at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166) at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144) at com.android.dx.command.dexer.Main.processOne(Main.java:596) at com.android.dx.command.dexer.Main.processAllFiles(Main.java:498) at com.android.dx.command.dexer.Main.runMonoDex(Main.java:264) at com.android.dx.command.dexer.Main.run(Main.java:230) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at com.android.ide.eclipse.adt.internal.build.DexWrapper.run(DexWrapper.java:188) at com.android.ide.eclipse.adt.internal.build.BuildHelper.executeDx(BuildHelper.java:786) at com.android.ide.eclipse.adt.internal.build.builders.PostCompilerBuilder.build(PostCompilerBuilder.java:597) at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:321) at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:396) at org.eclipse.core.internal.resources.Project$1.run(Project.java:618) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) at org.eclipse.core.internal.resources.Project.internalBuild(Project.java:597) at org.eclipse.core.internal.resources.Project.build(Project.java:124) at com.android.ide.eclipse.adt.internal.project.ProjectHelper.doFullIncrementalDebugBuild(ProjectHelper.java:1143) at com.android.ide.eclipse.adt.internal.launch.LaunchConfigDelegate.launch(LaunchConfigDelegate.java:155) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:855) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:704) at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1047) at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1251) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53) ...while parsing com/mysql/jdbc/JDBC42CallableStatement.class [2016-07-29 16:52:00 -MySQL] Dx 1 error; aborting [2016-07-29 16:52:00 -MySQL] Conversion to Dalvik format failed with error 1

springboot 整合mybatis 报错提示包扫描不进去

![图片说明](https://img-ask.csdn.net/upload/201908/14/1565777159_224084.png) ``` package com.liupeng; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import tk.mybatis.spring.annotation.MapperScan; @SpringBootApplication() @MapperScan(basePackages = "com.liupeng.mapper") public class Application { public static void main(String[] args) { SpringApplication.run(Application.class,args); } } ``` ``` package com.liupeng.service; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.liupeng.mapper.UserMapper; import com.liupeng.pojo.User; @Service(value = "Userservice") public class UserServiceImpl implements Userservice { @Autowired private UserMapper userMapper; @Override public User getNamePassword(User user) { // TODO Auto-generated method stub return userMapper.selectgetNamePassword(user); } @Override public void saveUser(User user) { // TODO Auto-generated method stub } } ``` mapper.xml ``` <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.liupeng.mapper.UserMapper"> ``` ``` #------------------配置虚拟文件路径--start------------------------------ spring.http.multipart.location=E:\Java\java代码\Chaoyang\src\main\resources #-----------------------------------------数据库--start---------------------- spring.datasource.driver-class-name=com.mysql.cj.jdbc.Drive spring.datasource.url=jdbc:mysql://localhost:3306/ssm_mybatis?serverTimezone=GMT spring.datasource.username=root spring.datasource.password=liupeng.123 spring.datasource.druid.stat-view-servlet.allow=true #获取连接等待超时时间 spring.datasource.dbcp2.max-wait-millis=60000 #mybatis配置 mybatis.type-aliases-package=com.liupeng.pojo mybatis.mapper-locations=classpath:mapper/*.xml #通用Mapper配置 #mapper.mappers=com.liupeng.utils.MyMapper #mapper.not-empty=false #mapper.identity=MYSQL #分页插件配置 pagehelper.helperDialect=mysq1 pagehelper.reasonable=true pagehelper.supportMethodsArguments=true pagehelper.params=count=countSql #文件上传配置 spring.http.multipart.maxFileSize=100Mb spring.http.multipart.maxRequestSize=1000Mb #配置api端口号 server.port=8080 #tomcat的URI编码 server.tomcat.uri-encoding=UTF-8 ``` ``` ERROR [main] - Application startup failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registLoginController': Unsatisfied dependency expressed through field 'userservice'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'Userservice': Unsatisfied dependency expressed through field 'userMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\Java\java代码\Chaoyang\target\classes\com\liupeng\mapper\UserMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:364) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1268) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:756) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:123) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:666) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:353) at org.springframework.boot.SpringApplication.run(SpringApplication.java:300) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1082) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1071) at com.liupeng.Application.main(Application.java:13) Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'Userservice': Unsatisfied dependency expressed through field 'userMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\Java\java代码\Chaoyang\target\classes\com\liupeng\mapper\UserMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:364) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1268) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:211) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1131) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1059) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ... 19 more Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\Java\java代码\Chaoyang\target\classes\com\liupeng\mapper\UserMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. 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Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1177) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1072) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:211) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1131) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1059) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1346) ... 43 more Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ... 55 more Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:523) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380) at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:547) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration.sqlSessionFactory(MapperAutoConfiguration.java:155) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration$$EnhancerBySpringCGLIB$$90d064bb.CGLIB$sqlSessionFactory$1(<generated>) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration$$EnhancerBySpringCGLIB$$90d064bb$$FastClassBySpringCGLIB$$b0514ca6.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration$$EnhancerBySpringCGLIB$$90d064bb.sqlSessionFactory(<generated>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ... 56 more Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120) at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521) ... 69 more Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:872) at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:844) at org.apache.ibatis.session.Configuration.addResultMap(Configuration.java:626) at org.apache.ibatis.builder.MapperBuilderAssistant.addResultMap(MapperBuilderAssistant.java:214) at org.apache.ibatis.builder.ResultMapResolver.resolve(ResultMapResolver.java:47) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:285) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244) at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116) ... 71 more ```

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85后蒋凡:28岁实现财务自由、34岁成为阿里万亿电商帝国双掌门,他的人生底层逻辑是什么?...

蒋凡是何许人也? 2017年12月27日,在入职4年时间里,蒋凡开挂般坐上了淘宝总裁位置。 为此,时任阿里CEO张勇在任命书中力赞: 蒋凡加入阿里,始终保持创业者的冲劲,有敏锐的...

总结了 150 余个神奇网站,你不来瞅瞅吗?

原博客再更新,可能就没了,之后将持续更新本篇博客。

副业收入是我做程序媛的3倍,工作外的B面人生是怎样的?

提到“程序员”,多数人脑海里首先想到的大约是:为人木讷、薪水超高、工作枯燥…… 然而,当离开工作岗位,撕去层层标签,脱下“程序员”这身外套,有的人生动又有趣,马上展现出了完全不同的A/B面人生! 不论是简单的爱好,还是正经的副业,他们都干得同样出色。偶尔,还能和程序员的特质结合,产生奇妙的“化学反应”。 @Charlotte:平日素颜示人,周末美妆博主 大家都以为程序媛也个个不修边幅,但我们也许...

MySQL数据库面试题(2020最新版)

文章目录数据库基础知识为什么要使用数据库什么是SQL?什么是MySQL?数据库三大范式是什么mysql有关权限的表都有哪几个MySQL的binlog有有几种录入格式?分别有什么区别?数据类型mysql有哪些数据类型引擎MySQL存储引擎MyISAM与InnoDB区别MyISAM索引与InnoDB索引的区别?InnoDB引擎的4大特性存储引擎选择索引什么是索引?索引有哪些优缺点?索引使用场景(重点)...

新一代神器STM32CubeMonitor介绍、下载、安装和使用教程

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如果你是老板,你会不会踢了这样的员工?

有个好朋友ZS,是技术总监,昨天问我:“有一个老下属,跟了我很多年,做事勤勤恳恳,主动性也很好。但随着公司的发展,他的进步速度,跟不上团队的步伐了,有点...

我入职阿里后,才知道原来简历这么写

私下里,有不少读者问我:“二哥,如何才能写出一份专业的技术简历呢?我总感觉自己写的简历太烂了,所以投了无数份,都石沉大海了。”说实话,我自己好多年没有写过简历了,但我认识的一个同行,他在阿里,给我说了一些他当年写简历的方法论,我感觉太牛逼了,实在是忍不住,就分享了出来,希望能够帮助到你。 01、简历的本质 作为简历的撰写者,你必须要搞清楚一点,简历的本质是什么,它就是为了来销售你的价值主张的。往深...

大学一路走来,学习互联网全靠这几个网站,最终拿下了一把offer

大佬原来都是这样炼成的

离职半年了,老东家又发 offer,回不回?

有小伙伴问松哥这个问题,他在上海某公司,在离职了几个月后,前公司的领导联系到他,希望他能够返聘回去,他很纠结要不要回去? 俗话说好马不吃回头草,但是这个小伙伴既然感到纠结了,我觉得至少说明了两个问题:1.曾经的公司还不错;2.现在的日子也不是很如意。否则应该就不会纠结了。 老实说,松哥之前也有过类似的经历,今天就来和小伙伴们聊聊回头草到底吃不吃。 首先一个基本观点,就是离职了也没必要和老东家弄的苦...

为什么你不想学习?只想玩?人是如何一步一步废掉的

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什么时候跳槽,为什么离职,你想好了么?

都是出来打工的,多为自己着想

为什么程序员做外包会被瞧不起?

二哥,有个事想询问下您的意见,您觉得应届生值得去外包吗?公司虽然挺大的,中xx,但待遇感觉挺低,马上要报到,挺纠结的。

当HR压你价,说你只值7K,你该怎么回答?

当HR压你价,说你只值7K时,你可以流畅地回答,记住,是流畅,不能犹豫。 礼貌地说:“7K是吗?了解了。嗯~其实我对贵司的面试官印象很好。只不过,现在我的手头上已经有一份11K的offer。来面试,主要也是自己对贵司挺有兴趣的,所以过来看看……”(未完) 这段话主要是陪HR互诈的同时,从公司兴趣,公司职员印象上,都给予对方正面的肯定,既能提升HR的好感度,又能让谈判气氛融洽,为后面的发挥留足空间。...

面试阿里p7,被按在地上摩擦,鬼知道我经历了什么?

面试阿里p7被问到的问题(当时我只知道第一个):@Conditional是做什么的?@Conditional多个条件是什么逻辑关系?条件判断在什么时候执...

你期望月薪4万,出门右拐,不送,这几个点,你也就是个初级的水平

先来看几个问题通过注解的方式注入依赖对象,介绍一下你知道的几种方式@Autowired和@Resource有何区别说一下@Autowired查找候选者的...

面试了一个 31 岁程序员,让我有所触动,30岁以上的程序员该何去何从?

最近面试了一个31岁8年经验的程序猿,让我有点感慨,大龄程序猿该何去何从。

大三实习生,字节跳动面经分享,已拿Offer

说实话,自己的算法,我一个不会,太难了吧

程序员垃圾简历长什么样?

已经连续五年参加大厂校招、社招的技术面试工作,简历看的不下于万份 这篇文章会用实例告诉你,什么是差的程序员简历! 疫情快要结束了,各个公司也都开始春招了,作为即将红遍大江南北的新晋UP主,那当然要为小伙伴们做点事(手动狗头)。 就在公众号里公开征简历,义务帮大家看,并一一点评。《启舰:春招在即,义务帮大家看看简历吧》 一石激起千层浪,三天收到两百多封简历。 花光了两个星期的所有空闲时...

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