我在使用IDEA建web项目时,必须要把一些用到的JAR包导入到tomcat安装目录下才能正常运行,如何才能将JAR包导入到WEB-INF下的lib中,而不需要将JAR包导入tomcat的安装目录中.我每次导入JAR包,都不会再WEB-INF的lib中显示.

java web项目部署到Linux服务器上，其中有一个模板下载的请求连接，模板文件就是放在src下面编译后放在classes文件夹下。现在问题是访问这个下载链接时，项目日志报异常了No such file or directory。是不是我这个java应用没有访问这个文件的权限呢？怎么才能让它能访问呢？

本人现在利用Tomcat的热部署,已经部署了一个项目,而在在myEclipse中利用小测试了一下， 运行没有问题。但是发布了之后,发现WEB-INF的lib包中,并没有相应的Hibernate,Spring等jar包， 但是我在myEclipse里,build path都是把这些jar添加进去的,请问要如何让myEclipse自动 的帮我往lib中添加jar包.

webapp下的文件夹存放的都是css,js,img之类的东西，而web-inf下存放的都是jsp，可以这样理解吗

2009-2-24 19:24:57 org.apache.commons.modeler.Registry registerComponent 严重: Null component Catalina:type=JspMonitor,WebModule=//localhost/OrderTickets,J2EEApplication=none,J2EEServer=none 2009-2-24 19:24:57 org.apache.catalina.startup.HostConfig deployDirectories 严重: Error deploying web application directory OrderTickets java.lang.NoSuchMethodError: org.apache.log4j.Category.log(Ljava/lang/String;Lorg/apache/log4j/Level;Ljava/lang/Object;Ljava/lang/Throwable;)V at org.apache.commons.logging.impl.Log4JCategoryLog.debug(Log4JCategoryLog.java:94) at org.apache.catalina.session.ManagerBase.init(ManagerBase.java:627) at org.apache.catalina.session.StandardManager.start(StandardManager.java:639) at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:499) at org.apache.catalina.startup.ContextConfig.managerConfig(ContextConfig.java:315) at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:635) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:216) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4290) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595) at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:277) at org.apache.catalina.core.StandardHost.install(StandardHost.java:832) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:701) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:983) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091) at org.apache.catalina.core.StandardHost.start(StandardHost.java:789) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478) at org.apache.catalina.core.StandardService.start(StandardService.java:480) at org.apache.catalina.core.StandardServer.start(StandardServer.java:2313) at org.apache.catalina.startup.Catalina.start(Catalina.java:556) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425) 2009-2-24 19:24:57 org.apache.coyote.http11.Http11Protocol start 信息: Starting Coyote HTTP/1.1 on http-8080 请各位大虾帮我解答一下，小弟不胜感激！！！！！ [b]问题补充：[/b] classpath路径: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="con" path="melibrary.com.genuitec.eclipse.j2eedt.core.MYECLIPSE_JAVAEE_5_CONTAINER"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/antlr.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-beanutils.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-collections.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-dbcp-1.1.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-digester.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-fileupload.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-lang.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-logging.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-pool-1.1.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-validator.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/jakarta-oro.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/mysql-connector-java-5.0.7-bin.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/struts-legacy.jar"/> <classpathentry kind="lib" path="WebRoot/WEB-INF/lib/struts.jar"/> <classpathentry kind="output" path="WebRoot/WEB-INF/classes"/> </classpath>

validateJarFile(C:\Users\Administrator\Workspaces\Eclipse_neon\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps\demo\WEB-INF\lib\javaee-api-7.0.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/servlet/Servlet.class 那位大神帮忙解决下~

javax.servlet.ServletException: Unable to load configuration. - bean - jar:file:/e:/qingniusoftware/Payment/WebRoot/WEB-INF/lib/struts2-core-2.1.8.1.jar!/struts-default.xml:29:72 at com.caucho.server.dispatch.FilterManager.createFilter(FilterManager.java:234) at com.caucho.server.dispatch.FilterManager.init(FilterManager.java:105) at com.caucho.server.webapp.WebApp.startImpl(WebApp.java:3698) at com.caucho.server.webapp.WebApp.access$400(WebApp.java:207) at com.caucho.server.webapp.WebApp$StartupTask.run(WebApp.java:5217) at com.caucho.env.thread2.ResinThread2.runTasks(ResinThread2.java:173) at com.caucho.env.thread2.ResinThread2.run(ResinThread2.java:118) Caused by: Unable to load configuration. - bean - jar:file:/e:/qingniusoftware/Payment/WebRoot/WEB-INF/lib/struts2-core-2.1.8.1.jar!/struts-default.xml:29:72 at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:431) at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69) at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51) at com.caucho.server.dispatch.FilterManager.createFilter(FilterManager.java:204) ... 6 more Caused by: Unable to load configuration. - bean - jar:file:/e:/qingniusoftware/Payment/WebRoot/WEB-INF/lib/struts2-core-2.1.8.1.jar!/struts-default.xml:29:72 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418) ... 9 more Caused by: Unable to load bean: type: class:com.opensymphony.xwork2.ObjectFactory - bean - jar:file:/e:/qingniusoftware/Payment/WebRoot/WEB-INF/lib/struts2-core-2.1.8.1.jar!/struts-default.xml:29:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:221) at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:169) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55) ... 11 more

 第一个错误是：2017-5-10 20:27:26 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener 整段调试信息： 2017-5-10 20:27:22 org.apache.catalina.core.AprLifecycleListener init 信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Users\Administrator\MyEclipse 6.0\bin;C:\Users\Administrator\MyEclipse 6.0\myeclipse\eclipse\plugins\com.genuitec.eclipse.easie.tomcat.myeclipse_6.0.1.zmyeclipse601200710\tomcat\bin 2017-5-10 20:27:23 org.apache.coyote.http11.Http11Protocol init 信息: Initializing Coyote HTTP/1.1 on http-8080 2017-5-10 20:27:23 org.apache.catalina.startup.Catalina load 信息: Initialization processed in 1668 ms 2017-5-10 20:27:23 org.apache.catalina.core.StandardService start 信息: Starting service Catalina 2017-5-10 20:27:23 org.apache.catalina.core.StandardEngine start 信息: Starting Servlet Engine: Apache Tomcat/6.0.13 2017-5-10 20:27:23 org.apache.catalina.loader.WebappClassLoader validateJarFile 信息: validateJarFile(D:\MyEclipes\.metadata\.plugins\com.genuitec.eclipse.easie.tomcat.myeclipse\tomcat\webapps\blog\WEB-INF\lib\javaee.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class 2017-5-10 20:27:25 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring root WebApplicationContext log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader). log4j:WARN Please initialize the log4j system properly. 2017-5-10 20:27:26 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.io.FileNotFoundException: class path resource [com/model/Sysuser.hbm.xml] cannot be opened because it does not exist Caused by: java.io.FileNotFoundException: class path resource [com/model/Sysuser.hbm.xml] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:135) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:656) at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:134) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1202) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1172) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:428) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:284) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:244) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:187) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4334) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:566) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) 2017-5-10 20:27:26 org.apache.catalina.core.StandardContext start 严重: Error listenerStart 2017-5-10 20:27:26 org.apache.catalina.core.StandardContext start 严重: Context [/blog] startup failed due to previous errors 2017-5-10 20:27:26 org.apache.catalina.core.ApplicationContext log 信息: Closing Spring root WebApplicationContext 2017-5-10 20:27:26 org.apache.coyote.http11.Http11Protocol start 信息: Starting Coyote HTTP/1.1 on http-8080 2017-5-10 20:27:26 org.apache.jk.common.ChannelSocket init 信息: JK: ajp13 listening on /0.0.0.0:8009 2017-5-10 20:27:26 org.apache.jk.server.JkMain start 信息: Jk running ID=0 time=0/43 config=null 2017-5-10 20:27:26 org.apache.catalina.startup.Catalina start 信息: Server startup in 3166 ms

为什么我在web-xml配置完servlet之后tomcat就启动不了了？把内段servlet删了就又能了

我把apache的commons-beanutils还有upload等一堆包放在了/web-inf/lib里面，但是没有用， import org.apache.commons.fileupload.DefaultFileItemFactory;有错，引入不了 我用myeclipse..在tomcat和MyEclipse的两个web-inf/lib里都放了。。 谢谢各位前辈，我快崩溃了

希望大牛能帮我解答一下疑惑，小弟感激不尽。 项目介绍：自己搭的Spring Spring MVC MyBatis JavaWeb项目，JDK：1.8. 今天用maven打包项目，莫名其妙的java文件就打包不进去了， 没有修改过pom.xml文件，执行mvn clean install / mvn package / mvn compile 都打包成功，不报错，但是就是没有包含进java文件 ----------- [INFO] Total time: 4.518 s [INFO] Finished at: 2018-10-16T15:04:22+08:00 [INFO] Final Memory: 13M/309M [INFO] ------------------------------------------------------------------------ F:\luzongzhu\personal\zjjsfood\leron> 下图是项目的文件层级图  再贴一下我的pom.xml文件 ``` <?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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <packaging>war</packaging> <name>leron</name> <groupId>leron</groupId> <artifactId>leron</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>3.1.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>3.1.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>3.1.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>3.1.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>3.1.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>3.1.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>3.1.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>3.1.1.RELEASE</version> </dependency> <!-- springframe end --> <!-- https://mvnrepository.com/artifact/javax.persistence/persistence-api --> <dependency> <groupId>javax.persistence</groupId> <artifactId>persistence-api</artifactId> <version>1.0</version> </dependency> <!--引入pageHelper分页插件 --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>5.0.0</version> </dependency> <!-- 返回json字符串的支持 --> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.3.1</version> </dependency> <!-- mybatis/spring包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <!-- mysql驱动包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.29</version> </dependency> <!-- junit测试包 --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!-- jstl --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2.1-b03</version> <scope>provided</scope> </dependency> <!-- 通用Mapper --> <dependency> <groupId>com.github.abel533</groupId> <artifactId>mapper</artifactId> <version>2.3.4</version> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <!-- json数据 --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.8.5</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.5</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.8.5</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.4</version> </dependency> <dependency> <groupId>net.sf.json-lib</groupId> <artifactId>json-lib</artifactId> <version>2.4</version> <classifier>jdk15</classifier> </dependency> <!-- commons --> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1</version> </dependency> <dependency> <groupId>commons-pool</groupId> <artifactId>commons-pool</artifactId> <version>1.5.6</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>commons-beanutils</groupId> <artifactId>commons-beanutils</artifactId> <version>1.8.3</version> </dependency> <dependency> <groupId>commons-httpclient</groupId> <artifactId>commons-httpclient</artifactId> <version>3.1</version> </dependency> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.1</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.9</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-io/commons-io --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.2.1</version> </dependency> <dependency> <groupId>javax.annotation</groupId> <artifactId>jsr250-api</artifactId> <version>1.0</version> </dependency> <dependency> <groupId>net.sf.ezmorph</groupId> <artifactId>ezmorph</artifactId> <version>1.0.6</version> </dependency> <dependency> <groupId>javax.activation</groupId> <artifactId>activation</artifactId> <version>1.1</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <!-- 日志文件管理包 --> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.5</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.21</version> </dependency> <!-- freemarker begin --> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version>2.3.21</version> </dependency> <!-- freemarker end --> <!-- https://mvnrepository.com/artifact/com.sun.mail/javax.mail --> <dependency> <groupId>com.sun.mail</groupId> <artifactId>javax.mail</artifactId> <version>1.5.6</version> </dependency> </dependencies> <!-- 插件配置 --> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <warName>leron</warName> <webResources> <resource> <directory>${basedir}/src/main/resources/lib</directory> <targetPath>WEB-INF/lib</targetPath> <filtering>false</filtering> <includes> <include>**/*.jar</include> </includes> </resource> </webResources> </configuration> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <source>1.8</source> <target>1.8</target> <encoding>utf8</encoding> </configuration> </plugin> </plugins> </build> </project> ```

比如我导入第三方jar包， 我在JSP页面用了这个包，eclipse编译倒是通过。但浏览器弹出来就显示XXX cannot be resolved to a type. 我是这样导入的:右击项目，Build Path-->Libraries-->Add External JARS，还有我把该jar包也放在项目中的WEB-INF的Lib文件下了，还是没用。 凡是用到第三方包，eclipse编译都通过，浏览器跳出来的都是XXX cannot be resolved to a type. 只要不用到第三方包，都不会出问题，我确定Tomcat没问题的。 <%page import=""%>方面确定没问题的。  以上我导入了mail.jar和activation.jar包，在JSP页面写道： Session mailSession = Session.getDefaultInstance(properties); 最后eclipse编译没报错，但是浏览器却如下该结果： 

java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) at com.mysql.jdbc.ConnectionImpl.buildCollationMapping(ConnectionImpl.java:1074) at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3590) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2531) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2301) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:146) at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:211) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:140) at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:785) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:140) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1358) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1412) at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:606) 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.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1681) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1620) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:320) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1456) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1197) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:320) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:641) at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:148) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1114) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1017) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1014) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:957) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)

严重: The ServletContentInitializer [# Licensed to the Apache Software Foundation (ASF) under one or more] could not be created java.lang.ClassNotFoundException: # Licensed to the Apache Software Foundation (ASF) under one or more at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:344) at org.apache.catalina.startup.ContextConfig.getServletContainerInitializer(ContextConfig.java:1652) at org.apache.catalina.startup.ContextConfig.processServletContainerInitializers(ContextConfig.java:1562) at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1270) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:376) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1113) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1671) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) 十月 25, 2017 3:03:59 下午 org.apache.catalina.startup.ContextConfig processServletContainerInitializers 严重: Failed to process JAR found at URL [jar:file:/F:/apache-tomcat-7.0.42_empty/webapps/newWechatMarketing/WEB-INF/lib/tomcat-embed-websocket-8.5.11.jar!/] for ServletContainerInitializers for context with name [/newWechatMarketing]

在阿里云上部署java项目后,用浏览器访问网页显示如下错误: 声明: 在网上也查了许多资料: 1,有说是阿里云安全规则配置哪里没设置 可是还是没用 2,然后根据网上说的看下tomcat日志: ``` Using CATALINA_BASE: /usr/java/tomcat7 Using CATALINA_HOME: /usr/java/tomcat7 Using CATALINA_TMPDIR: /usr/java/tomcat7/temp Using JRE_HOME: /usr Using CLASSPATH: /usr/java/tomcat7/bin/bootstrap.jar:/usr/java/tomcat7/bin/tomcat-juli.jar Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Server version: Apache Tomcat/7.0.93 Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Server built: Feb 16 2019 17:13:17 UTC Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Server number: 7.0.93.0 Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: OS Name: Linux Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: OS Version: 2.6.32-754.11.1.el6.x86_64 Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Architecture: amd64 Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Java Home: /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.211.x86_64/jre Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: JVM Version: 1.7.0_211-mockbuild_2019_03_11_17_56-b00 Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: JVM Vendor: Oracle Corporation Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: CATALINA_BASE: /usr/java/tomcat7 Mar 14, 2019 2:56:22 PM org.apache.catalina.startup.VersionLoggerListener log INFO: CATALINA_HOME: /usr/java/tomcat7 Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Djava.util.logging.config.file=/usr/java/tomcat7/conf/logging.properties Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Djdk.tls.ephemeralDHKeySize=2048 Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Dignore.endorsed.dirs= Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Dcatalina.base=/usr/java/tomcat7 Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Dcatalina.home=/usr/java/tomcat7 Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: -Djava.io.tmpdir=/usr/java/tomcat7/temp Mar 14, 2019 2:56:23 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib Mar 14, 2019 2:56:23 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] Mar 14, 2019 2:56:23 PM org.apache.coyote.AbstractProtocol init SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-bio-8080"] java.net.BindException: Address already in use (Bind failed) <null>:8080 at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:414) at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:728) at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:452) at org.apache.coyote.http11.AbstractHttp11JsseProtocol.init(AbstractHttp11JsseProtocol.java:119) at org.apache.catalina.connector.Connector.initInternal(Connector.java:978) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardService.initInternal(StandardService.java:560) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:840) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.startup.Catalina.load(Catalina.java:660) at org.apache.catalina.startup.Catalina.load(Catalina.java:685) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:253) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:427) Caused by: java.net.BindException: Address already in use (Bind failed) at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376) at java.net.ServerSocket.bind(ServerSocket.java:375) at java.net.ServerSocket.<init>(ServerSocket.java:237) at java.net.ServerSocket.<init>(ServerSocket.java:181) at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:49) at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:401) ... 17 more Mar 14, 2019 2:56:23 PM org.apache.catalina.core.StandardService initInternal SEVERE: Failed to initialize connector [Connector[HTTP/1.1-8080]] org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-8080]] at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107) at org.apache.catalina.core.StandardService.initInternal(StandardService.java:560) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:840) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.startup.Catalina.load(Catalina.java:660) at org.apache.catalina.startup.Catalina.load(Catalina.java:685) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:253) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:427) Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed at org.apache.catalina.connector.Connector.initInternal(Connector.java:980) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) ... 12 more Caused by: java.net.BindException: Address already in use (Bind failed) <null>:8080 at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:414) at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:728) at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:452) at org.apache.coyote.http11.AbstractHttp11JsseProtocol.init(AbstractHttp11JsseProtocol.java:119) at org.apache.catalina.connector.Connector.initInternal(Connector.java:978) ... 13 more Caused by: java.net.BindException: Address already in use (Bind failed) at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376) at java.net.ServerSocket.bind(ServerSocket.java:375) at java.net.ServerSocket.<init>(ServerSocket.java:237) at java.net.ServerSocket.<init>(ServerSocket.java:181) at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:49) at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:401) ... 17 more Mar 14, 2019 2:56:23 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["ajp-bio-8009"] Mar 14, 2019 2:56:23 PM org.apache.coyote.AbstractProtocol init SEVERE: Failed to initialize end point associated with ProtocolHandler ["ajp-bio-8009"] java.net.BindException: Address already in use (Bind failed) <null>:8009 at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:414) at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:728) at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:452) at org.apache.catalina.connector.Connector.initInternal(Connector.java:978) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardService.initInternal(StandardService.java:560) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:840) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.startup.Catalina.load(Catalina.java:660) at org.apache.catalina.startup.Catalina.load(Catalina.java:685) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:253) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:427) Caused by: java.net.BindException: Address already in use (Bind failed) at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376) at java.net.ServerSocket.bind(ServerSocket.java:375) at java.net.ServerSocket.<init>(ServerSocket.java:237) at java.net.ServerSocket.<init>(ServerSocket.java:181) at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:49) at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:401) ... 16 more Mar 14, 2019 2:56:23 PM org.apache.catalina.core.StandardService initInternal SEVERE: Failed to initialize connector [Connector[AJP/1.3-8009]] org.apache.catalina.LifecycleException: Failed to initialize component [Connector[AJP/1.3-8009]] at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107) at org.apache.catalina.core.StandardService.initInternal(StandardService.java:560) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:840) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.startup.Catalina.load(Catalina.java:660) at org.apache.catalina.startup.Catalina.load(Catalina.java:685) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:253) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:427) Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed at org.apache.catalina.connector.Connector.initInternal(Connector.java:980) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) ... 12 more Caused by: java.net.BindException: Address already in use (Bind failed) <null>:8009 at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:414) at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:728) at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:452) at org.apache.catalina.connector.Connector.initInternal(Connector.java:978) ... 13 more Caused by: java.net.BindException: Address already in use (Bind failed) at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376) at java.net.ServerSocket.bind(ServerSocket.java:375) at java.net.ServerSocket.<init>(ServerSocket.java:237) at java.net.ServerSocket.<init>(ServerSocket.java:181) at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:49) at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:401) ... 16 more Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 1420 ms Mar 14, 2019 2:56:23 PM org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina Mar 14, 2019 2:56:23 PM org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.93 Mar 14, 2019 2:56:23 PM org.apache.catalina.startup.HostConfig deployWAR INFO: Deploying web application archive /usr/java/tomcat7/webapps/survey.war Mar 14, 2019 2:56:23 PM org.apache.catalina.loader.WebappClassLoaderBase validateJarFile INFO: validateJarFile(/usr/java/tomcat7/webapps/survey/WEB-INF/lib/servlet-api.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/servlet/Servlet.class Mar 14, 2019 2:56:24 PM org.apache.catalina.deploy.WebXml setVersion WARNING: Unknown version string [3.1]. Default version will be used. Mar 14, 2019 2:56:25 PM org.apache.catalina.startup.TaglibUriRule body INFO: TLD skipped. URI: http://java.sun.com/jstl/core is already defined Mar 14, 2019 2:56:25 PM org.apache.catalina.startup.TaglibUriRule body INFO: TLD skipped. URI: http://java.sun.com/jstl/fmt is already defined Mar 14, 2019 2:56:25 PM org.apache.catalina.startup.TaglibUriRule body INFO: TLD skipped. URI: http://java.sun.com/jstl/sql is already defined Mar 14, 2019 2:56:25 PM org.apache.catalina.startup.TaglibUriRule body INFO: TLD skipped. URI: http://java.sun.com/jstl/xml is already defined Mar 14, 2019 2:56:26 PM org.apache.catalina.startup.TldConfig execute INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Parsing configuration file [struts-default.xml] Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Unable to locate configuration files of the name struts-plugin.xml, skipping Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Parsing configuration file [struts-plugin.xml] Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Parsing configuration file [struts.xml] Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.ObjectFactory) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.FileManager) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.XWorkConverter) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.TextProvider) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.ActionProxyFactory) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ObjectTypeDeterminer) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (org.apache.struts2.dispatcher.mapper.ActionMapper) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (jakarta) for (org.apache.struts2.dispatcher.multipart.MultiPartRequest) Mar 14, 2019 2:56:26 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (org.apache.struts2.views.freemarker.FreemarkerManager) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (org.apache.struts2.components.UrlRenderer) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.validator.ActionValidatorManager) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.util.ValueStackFactory) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionProvider) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionContextFactory) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.util.PatternMatcher) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (org.apache.struts2.dispatcher.StaticContentLoader) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (com.opensymphony.xwork2.UnknownHandlerManager) Mar 14, 2019 2:56:27 PM com.opensymphony.xwork2.util.logging.jdk.JdkLogger info INFO: Choosing bean (struts) for (org.apache.struts2.views.util.UrlHelper) Mar 14, 2019 2:56:27 PM org.apache.catalina.core.StandardContext startInternal SEVERE: One or more Filters failed to start. Full details will be found in the appropriate container log file Mar 14, 2019 2:56:27 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/survey] startup failed due to previous errors Mar 14, 2019 2:56:27 PM org.apache.catalina.startup.HostConfig deployWAR INFO: Deployment of web application archive /usr/java/tomcat7/webapps/survey.war has finished in 3,963 ms Mar 14, 2019 2:56:27 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 4088 ms Mar 14, 2019 2:56:27 PM org.apache.catalina.core.StandardServer await SEVERE: StandardServer.await: create[localhost:8005]: java.net.BindException: Address already in use (Bind failed) at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376) at java.net.ServerSocket.bind(ServerSocket.java:375) at java.net.ServerSocket.<init>(ServerSocket.java:237) at org.apache.catalina.core.StandardServer.await(StandardServer.java:444) at org.apache.catalina.startup.Catalina.await(Catalina.java:799) at org.apache.catalina.startup.Catalina.start(Catalina.java:745) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:428) Mar 14, 2019 2:56:27 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["http-bio-8080"] Mar 14, 2019 2:56:27 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["ajp-bio-8009"] Mar 14, 2019 2:56:27 PM org.apache.catalina.core.StandardService stopInternal INFO: Stopping service Catalina Mar 14, 2019 2:56:27 PM org.apache.coyote.AbstractProtocol stop INFO: Stopping ProtocolHandler ["http-bio-8080"] Mar 14, 2019 2:56:27 PM org.apache.coyote.AbstractProtocol destroy INFO: Destroying ProtocolHandler ["http-bio-8080"] Mar 14, 2019 2:56:27 PM org.apache.coyote.AbstractProtocol stop INFO: Stopping ProtocolHandler ["ajp-bio-8009"] Mar 14, 2019 2:56:27 PM org.apache.coyote.AbstractProtocol destroy INFO: Destroying ProtocolHandler ["ajp-bio-8009"] ``` 看了下是说tomcat端口占用? 杀掉tomcat后还是没作用 求各位大佬帮个帮忙 谢谢

7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server.服务器版本: Apache Tomcat/9.0.19 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server.构建: Apr 12 2019 14:22:48 UTC 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server version number: 9.0.19.0 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: OS Name: Windows 10 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: OS.版本: 10.0 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: 结.造: amd64 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Java 环境变量: C:\Program Files\Java\jre-9.0.4 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: JVM 版本: 9.0.4+11 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: JVM.供应商: Oracle Corporation 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: CATALINA_BASE: E:\mybatis\.metadata\.plugins\org.eclipse.wst.server.core\tmp0 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: CATALINA_HOME: E:\mytomcat\apache-tomcat-9.0.19 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dcatalina.base=E:\mybatis\.metadata\.plugins\org.eclipse.wst.server.core\tmp0 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dcatalina.home=E:\mytomcat\apache-tomcat-9.0.19 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dwtp.deploy=E:\mybatis\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps 7月 24, 2019 9:10:26 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dfile.encoding=UTF-8 7月 24, 2019 9:10:26 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent 信息: Loaded APR based Apache Tomcat Native library [1.2.21] using APR version [1.6.5]. 7月 24, 2019 9:10:26 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent 信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true]. 7月 24, 2019 9:10:26 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent 信息: APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true] 7月 24, 2019 9:10:26 下午 org.apache.catalina.core.AprLifecycleListener initializeSSL 信息: OpenSSL successfully initialized [OpenSSL 1.1.1a 20 Nov 2018] 7月 24, 2019 9:10:26 下午 org.apache.coyote.AbstractProtocol init 信息: 初始化协议处理器 ["http-nio-8080"] 7月 24, 2019 9:10:27 下午 org.apache.coyote.AbstractProtocol init 信息: 初始化协议处理器 ["ajp-nio-8009"] 7月 24, 2019 9:10:27 下午 org.apache.catalina.startup.Catalina load 信息: 服务器在[1,274]毫秒内初始化 7月 24, 2019 9:10:27 下午 org.apache.catalina.core.StandardService startInternal 信息: Starting service [Catalina] 7月 24, 2019 9:10:27 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet engine: [Apache Tomcat/9.0.19] 7月 24, 2019 9:10:27 下午 org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom 警告: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [171] milliseconds. 7月 24, 2019 9:10:32 下午 org.apache.catalina.core.ApplicationContext log 信息: No Spring WebApplicationInitializer types detected on classpath 7月 24, 2019 9:10:33 下午 org.apache.jasper.servlet.TldScanner scanJars 信息: 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。 7月 24, 2019 9:10:33 下午 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring root WebApplicationContext 7月 24, 2019 9:13:04 下午 org.apache.ibatis.mapping.VendorDatabaseIdProvider getDatabaseId 严重: Could not get a databaseId from dataSource java.sql.SQLException: Connections could not be acquired from the underlying database! at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:529) at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) at org.apache.ibatis.mapping.VendorDatabaseIdProvider.getDatabaseProductName(VendorDatabaseIdProvider.java:76) at org.apache.ibatis.mapping.VendorDatabaseIdProvider.getDatabaseName(VendorDatabaseIdProvider.java:61) at org.apache.ibatis.mapping.VendorDatabaseIdProvider.getDatabaseId(VendorDatabaseIdProvider.java:49) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:395) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:295) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:385) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:284) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4682) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5150) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1377) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1367) at java.base/java.util.concurrent.FutureTask.run(Unknown Source) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:902) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:831) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1377) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1367) at java.base/java.util.concurrent.FutureTask.run(Unknown Source) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:902) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:423) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:932) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:633) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492) Caused by: com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source. at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1319) at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557) at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525) ... 50 more WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.apache.ibatis.reflection.Reflector (file:/E:/mybatis/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/aa/WEB-INF/lib/mybatis-3.2.2.jar) to method java.lang.Object.finalize() WARNING: Please consider reporting this to the maintainers of org.apache.ibatis.reflection.Reflector WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release 7月 24, 2019 9:13:05 下午 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring FrameworkServlet 'springmvc' 7月 24, 2019 9:13:06 下午 org.apache.coyote.AbstractProtocol start 信息: 开始协议处理句柄["http-nio-8080"] 7月 24, 2019 9:13:06 下午 org.apache.coyote.AbstractProtocol start 信息: 开始协议处理句柄["ajp-nio-8009"] 7月 24, 2019 9:13:06 下午 org.apache.catalina.startup.Catalina start 信息: Server startup in [159,538] milliseconds web配置文件 <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>SpringMybatisOa</display-name> <!-- dwr --> <servlet> <servlet-name>dwr_invoker</servlet-name> <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class> <init-param> <param-name>crossDomainSessionSecurity</param-name> <param-value>false</param-value> </init-param> <init-param> <param-name>debug</param-name> <param-value>true</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>dwr_invoker</servlet-name> <url-pattern>/dwre/*</url-pattern> </servlet-mapping> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springconfig/*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.action</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> </web-app> springmvc配置 <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <mvc:annotation-driven/><!-- 启动注解方式的mvc --> <context:component-scan base-package="action"/><!-- 扫描该包下所有类加载到容器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/"/> <property name="suffix" value=".jsp"/> </bean> </beans> spring配置 <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations" value="classpath:jdbc.properties"></property> </bean> <bean id="ds" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass" value="${driverClass}" /> <property name="jdbcUrl" value="${url}" /> <property name="user" value="${userName}" /> <property name="password" value="${passWord}" /> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="ds" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="ds" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:dao/*.xml"></property> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <property name="basePackage" value="dao" /> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> <context:component-scan base-package="biz.impl"/> </beans> 在线等 急！！！

这段代码总是抛出异常，意思大概是加载数据库驱动时异常，我只复制了第一句 java.lang.ClassNotFoundException: com.MYSQL.jdbc.Driver 我百度后，网上说是导包的问题 在web工程下要把数据驱动包放到WebContent\WEB-INF\lib目录下 我放进去后，并且web工程右键build path 选择了这个jar包 然后把jsp文件run on server后出现的异常 包头需要倒入java什么包呢，我导入了 .lang.*,.util.*,.sql.*, 怎么弄都不行，求大神帮助！ ``` try{ Class.forName("com.MYSQL.jdbc.Driver"); } catch (ClassNotFoundException e){ System.out.println("加载数据库驱动时异常！"); e.printStackTrace(); } Connection con = null; con = DriverManager.getConnection("jdbc:MYSQL://localhost:3306/RJGC","root","root"); Statement stat = con.createStatement(); ResultSet res = stat.executeQuery("select * from zhsj"); ```

新手求教：第一个问题是myeslicpe10 配置好tomcat 服务器 新建一个javaweb项目然后发布会出现这个百度了一下说是什么jar包的问题，可是我是新建的什么也没有的WEB工程没导入过任何包，然后就算把最基本的包删了重新导入也不行，然后既然这样不行就只有手工移动，我在src里建立一个包里面有一个servlet叫Sc（当然里面啥也没写)，然后web.XML是系统自动配好的然后我把整个工程文件夹放在tomcat的webapps下，可以访问localhost:8080/gugu(项目名)/WebRoot/index.jsp 但是访问localhost:8080/gugu(项目名)/servlet/sc就会出现404错误，然后我又发现我的项目里web-inf里的lib什么也没有，我就从tomcat的lib里考来一个servlet-api.jar包，然后还是404错误，一直搞不定xml配置也没错包也有了为什么还是404 求大神解答。 PS：我还想知道为啥那个包没有自动导入，是因为没发布吗 ？

今年，我也32了 ，为了不给大家误导，咨询了猎头、圈内好友，以及年过35岁的几位老程序员……舍了老脸去揭人家伤疤……希望能给大家以帮助，记得帮我点赞哦。 目录： 你以为的人生 一次又一次的伤害 猎头界的真相 如何应对互联网行业的「中年危机」 一、你以为的人生 刚入行时，拿着傲人的工资，想着好好干，以为我们的人生是这样的： 等真到了那一天，你会发现，你的人生很可能是这样的： ...

程序员在一个周末的时间，得了重病，差点当场去世，还好及时挽救回来了。

互联网公司工作，很难避免不和黑客们打交道，我呆过的两家互联网公司，几乎每月每天每分钟都有黑客在公司网站上扫描。有的是寻找 Sql 注入的缺口，有的是寻找线上服务器可能存在的漏洞，大部分都...

“亚马逊丛林里的蝴蝶扇动几下翅膀就可能引起两周后美国德州的一次飓风……” 这句人人皆知的话最初用来描述非线性系统中微小参数的变化所引起的系统极大变化。 而在更长的时间尺度内，我们所生活的这个世界就是这样一个异常复杂的非线性系统…… 水泥、穹顶、透视——关于时间与技艺的蝴蝶效应 公元前3000年，古埃及人将尼罗河中挖出的泥浆与纳特龙盐湖中的矿物盐混合，再掺入煅烧石灰石制成的石灰，由此得来了人...

最近有个老铁，告诉我说，上班一个月，后悔当初着急入职现在公司了。他之前在美图做手机研发，今年美图那边今年也有一波组织优化调整，他是其中一个，在协商离职后，当时捉急找工作上班，因为有房贷供着，不能没有收入来源。所以匆忙选了一家公司，实际上是一个大型外包公司，主要派遣给其他手机厂商做外包项目。**当时承诺待遇还不错，所以就立马入职去上班了。但是后面入职后，发现薪酬待遇这块并不是HR所说那样，那个HR自...

昨天看到一档综艺节目，讨论了两个话题：（1）中国学生的数学成绩，平均下来看，会比国外好？为什么？（2）男生的数学成绩，平均下来看，会比女生好？为什么？同时，我又联想到了一个技术圈经常讨...

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...

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...

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...

今天给你们讲述一个外包程序员的幸福生活。男主是Z哥，不是在外包公司上班的那种，是一名自由职业者，接外包项目自己干。接下来讲的都是真人真事。 先给大家介绍一下男主，Z哥，老程序员，是我十多年前的老同事，技术大牛，当过CTO，也创过业。因为我俩都爱好喝酒、踢球，再加上住的距离不算远，所以一直也断断续续的联系着，我对Z哥的状况也有大概了解。 Z哥几年前创业失败，后来他开始干起了外包，利用自己的技术能...

本文介绍一些C++的两个新特性，它们虽然微小，但对你的编程十分重要 一、Template表达式内的空格 C++11标准之前建议在“在两个template表达式的闭符之间放一个空格”的要求已经过时了 例如： vector&lt;list&lt;int&gt; &gt;; //C++11之前 vector&lt;list&lt;int&gt;&gt;; //C++11 二、nullptr ...

场景 日常开发，if-else语句写的不少吧？？当逻辑分支非常多的时候，if-else套了一层又一层，虽然业务功能倒是实现了，但是看起来是真的很不优雅，尤其是对于我这种有强迫症的程序"猿"，看到这么多if-else，脑袋瓜子就嗡嗡的，总想着解锁新姿势：干掉过多的if-else！！！本文将介绍三板斧手段： 优先判断条件，条件不满足的，逻辑及时中断返回； 采用策略模式+工厂模式； 结合注解，锦...

大家现在应该都对Springboot很熟悉，但是你对他的启动原理了解吗？

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...

不知道是不是只有我这样子，还是你们也有过类似的经历。 上学的时候总有很多光辉历史，学年名列前茅，或者单科目大佬，但是虽然慢慢地长大了，你开始懈怠了，开始废掉了。。。 什么？你说不知道具体的情况是怎么样的？ 我来告诉你： 你常常潜意识里或者心理觉得，自己真正的生活或者奋斗还没有开始。总是幻想着自己还拥有大把时间，还有无限的可能，自己还能逆风翻盘，只不是自己还没开始罢了，自己以后肯定会变得特别厉害...

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。...

HashMap底层实现原理，红黑树，B+树，B树的结构原理 Spring的AOP和IOC是什么？它们常见的使用场景有哪些？Spring事务，事务的属性，传播行为，数据库隔离级别 Spring和SpringMVC，MyBatis以及SpringBoot的注解分别有哪些？SpringMVC的工作原理，SpringBoot框架的优点，MyBatis框架的优点 SpringCould组件有哪些，他们...

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...

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。

二本的读者，在老东家不断学习，最后逆袭

说实话，自己的算法，我一个不会，太难了吧

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...

我们都玩过Windows操作系统中的经典游戏扫雷（Minesweeper），如果把质数当作一颗雷，那么，表格中红色的数字哪些是雷（质数）？您能找出多少个呢？文中用列表的方式罗列了10000以内的自然数、质数（素数），6的倍数等，方便大家观察质数的分布规律及特性，以便对算法求解有指导意义。另外，判断质数是初学算法，理解算法重要性的一个非常好的案例。

正确选择比瞎努力更重要！

大厂竟然要考我SSO，卧槽。

作者 | 伍杏玲出品 | CSDN（ID：CSDNnews）格子衬衫、常掉发、双肩包、修电脑、加班多……这些似乎成了大众给程序员的固定标签。近几年流行的“跨界风”开始刷新人们对程序员的...

来看几个问题想不想月薪超过5万？想不想进入公司架构组？想不想成为项目组的负责人？想不想成为spring的高手，超越99%的对手？那么本文内容是你必须要掌握的。本文主要详解bean的生命...

不小心拿了几个offer，有点烦

不怕告诉你，我自从喜欢上了这12个UP主，哔哩哔哩成为了我手机上最耗电的软件，几乎每天都会看，可是吧，看的越多，我就越觉得自己是个废柴，唉，老天不公啊，不信你看看…… 间接性踌躇满志，持续性混吃等死，都是因为你们……但是，自己的学习力在慢慢变强，这是不容忽视的，推荐给你们！ 都说B站是个宝，可是有人不会挖啊，没事，今天咱挖好的送你一箩筐，首先啊，我在B站上最喜欢看这个家伙的视频了，为啥 ，咱撇...

某站后端代码被“开源”，同时刷遍全网的，还有代码里的那些神注释。 我们这才知道，原来程序员个个都是段子手；这么多年来，我们也走过了他们的无数套路… 首先，产品经理，是永远永远吐槽不完的！网友的评论也非常扎心，说看这些代码就像在阅读程序员的日记，每一页都写满了对产品经理的恨。 然后，也要发出直击灵魂的质问：你是尊贵的付费大会员吗？ 这不禁让人想起之前某音乐app的穷逼Vip，果然，穷逼在哪里都是...