求助!tomcat启动正常,访问javaweb时控制台报错

访问javaweb项目时报错,在myeclise6.0上无该异常,在myeclise10上报如下异常:
org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
javax.xml.parsers.FactoryConfigurationError: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not found
at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:129)
at org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:128)
at org.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:103)
at org.apache.jasper.compiler.JspConfig.init(JspConfig.java:238)
at org.apache.jasper.compiler.JspConfig.findJspProperty(JspConfig.java:294)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:112)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:389)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:620)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)

6个回答

你导入的包出错了,版本不同导入的包也不同

我用的环境是jdk1.6.tomcat6.0.43,框架是struts2和spring

数据库连接失败的问题,访问不到数据库

ta提示了:DocumentBuilderFactoryImpl not found 文件BuilderFactoryImpl没找到

你导入的包出错了,版本不同导入的包也不同

确实是导入的包与tomcat版本不兼容,我换了个Tomcat就可以了,谢谢。

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DEBUG [http-nio-555-exec-5] - ==> Parameters: root(String), aias(String) DEBUG [http-nio-555-exec-5] - <== Total: 1 DEBUG [http-nio-555-exec-5] - Resetting autocommit to true on JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] DEBUG [http-nio-555-exec-5] - Closing JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] DEBUG [http-nio-555-exec-5] - Returned connection 1428244206 to pool. 09-Dec-2019 20:10:23.398 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\apache-tomcat-9.0.27-windows-x64\apache-tomcat-9.0.27\webapps\manager] 09-Dec-2019 20:10:23.482 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\apache-tomcat-9.0.27-windows-x64\apache-tomcat-9.0.27\webapps\manager] has finished in [83] ms DEBUG [http-nio-555-exec-10] - Opening JDBC Connection DEBUG [http-nio-555-exec-10] - Checked out connection 1428244206 from pool. DEBUG [http-nio-555-exec-10] - Setting autocommit to false on JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] DEBUG [http-nio-555-exec-10] - ==> Preparing: select max(id) from emp DEBUG [http-nio-555-exec-10] - ==> Parameters: DEBUG [http-nio-555-exec-10] - <== Total: 1 DEBUG [http-nio-555-exec-10] - Resetting autocommit to true on JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] DEBUG [http-nio-555-exec-10] - Closing JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] DEBUG [http-nio-555-exec-10] - Returned connection 1428244206 to pool. DEBUG [http-nio-555-exec-10] - Opening JDBC Connection DEBUG [http-nio-555-exec-10] - Checked out connection 1428244206 from pool. DEBUG [http-nio-555-exec-10] - Setting autocommit to false on JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] DEBUG [http-nio-555-exec-10] - ==> Preparing: insert into emp(id,empno,username,password,ename,sex,birthday,email,call,pname,deptno,state,permissions) values (?,?,?,?,?,?,?,?,?,?,?,?,?) DEBUG [http-nio-555-exec-10] - ==> Parameters: 28(Integer), 028(String), test(String), test(String), 测试(String), 男(String), 2019-12-09(String), 777777777@qq.com(String), 11111111111(String), 接待员(String), 001(String), 在职(String), 普通员工(String) java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) DEBUG [http-nio-555-exec-10] - Rolling back JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] at java.lang.reflect.Method.invoke(Method.java:498) DEBUG [http-nio-555-exec-10] - Resetting autocommit to true on JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] DEBUG [http-nio-555-exec-10] - Closing JDBC Connection [com.mysql.jdbc.JDBC4Connection@552146ee] at com.cdx.psms.utils.TransactionInvocationHandler.invoke(TransactionInvocationHandler.java:30) DEBUG [http-nio-555-exec-10] - Returned connection 1428244206 to pool. at com.sun.proxy.$Proxy5.add(Unknown Source) at com.cdx.psms.controller.Emp_InsertAddServlet.doPost(Emp_InsertAddServlet.java:46) at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.ibatis.exceptions.PersistenceException: ### Error updating database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 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 'call,pname,deptno,state,permissions) values (28,'028','test','te' at line 2 ### The error may exist in com/cdx/psms/mapper/EmpMapper.xml ### The error may involve emp.add-Inline ### The error occurred while setting parameters ### SQL: insert into emp(id,empno,username,password,ename,sex,birthday,email,call,pname,deptno,state,permissions) values (?,?,?,?,?,?,?,?,?,?,?,?,?) ### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 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 'call,pname,deptno,state,permissions) values (28,'028','test','te' at line 2 at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:199) at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:184) at com.cdx.psms.dao.EmpDaoImpl.add(EmpDaoImpl.java:42) at com.cdx.psms.service.EmpServiceImpl.add(EmpServiceImpl.java:26) ... 31 more Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 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 'call,pname,deptno,state,permissions) values (28,'028','test','te' at line 2 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:425) at com.mysql.jdbc.Util.getInstance(Util.java:408) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3933) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3869) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2524) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2675) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2465) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1912) at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1251) 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.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59) at com.sun.proxy.$Proxy7.execute(Unknown Source) at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:47) at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74) at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50) at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197) ... 34 more ```
导入JAVAweb项目运行控制台出错
![图片说明](https://img-ask.csdn.net/upload/201910/28/1572267234_620110.png) 麻烦诸位大佬帮我看看是怎么出错了要怎么改。。
javaweb tomcat 部署问题!!!
javaweb项目项目部署到了tomcat,该完代码之后重启之后也没有用,只能clean项目和clean Tomcat 之后 重新部署才有用 什么病?
javaweb项目,tomcat启动异常报错,spring文件初始化问题,大神help
本地启动没问题,把编译好的项目放到别的机器就不行,tomcat版本是一样的,都是8.0.12,jdk也是一样的,本地的系统是windows,另外一台是linux ERROR 2015-08-13 14:50:01,873 ContextLoader:initWebApplicationContext - Context initialization failed java.lang.NullPointerException at org.springframework.core.io.support.PathMatchingResourcePatternResolver.doFindPathMatchingJarResources(PathMatchingResourcePatternResolver.java:390) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.findPathMatchingResources(PathMatchingResourcePatternResolver.java:318) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.getResources(PathMatchingResourcePatternResolver.java:242) at org.springframework.context.support.AbstractApplicationContext.getResources(AbstractApplicationContext.java:768) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:141) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:123) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:91) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:94) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:294) at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:156) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:246) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4751) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5175) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) 13-Aug-2015 14:50:01.878 SEVERE [ebanner.my.printcard.com.hk.t-startStop-1] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener java.lang.NullPointerException at org.springframework.core.io.support.PathMatchingResourcePatternResolver.doFindPathMatchingJarResources(PathMatchingResourcePatternResolver.java:390) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.findPathMatchingResources(PathMatchingResourcePatternResolver.java:318) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.getResources(PathMatchingResourcePatternResolver.java:242) at org.springframework.context.support.AbstractApplicationContext.getResources(AbstractApplicationContext.java:768) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:141) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:123) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:91) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:94) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:294) at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:156) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:246) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4751) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5175) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) 13-Aug-2015 14:50:01.880 SEVERE [ebanner.my.printcard.com.hk.t-startStop-1] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class com.promise.init.SpringInit java.lang.NullPointerException at org.springframework.core.io.support.PathMatchingResourcePatternResolver.doFindPathMatchingJarResources(PathMatchingResourcePatternResolver.java:390) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.findPathMatchingResources(PathMatchingResourcePatternResolver.java:318) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.getResources(PathMatchingResourcePatternResolver.java:242) at org.springframework.context.support.AbstractApplicationContext.getResources(AbstractApplicationContext.java:768) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:141) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:123) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:91) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:94) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:294) at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:156) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:246) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4751) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5175) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)
求助:我本地javaweb项目在启动tomcat时报错
![更新了log4j版本后控制台错误信息](https://img-ask.csdn.net/upload/201703/15/1489542194_361805.png)如图,之前的错误信息提示我通过百度搜索是说要更新log4j的版本,但是更新后还是依然出错,而且现在该web项目在修改java类之后,也不会自动编译了,class文件不会自动更新,之前是可以的。有没有大佬遇到过类似的问题,好心碎~~
javaweb在web.xml中配置欢迎页面为websocket服务访问地址,无法直接通过访问项目根路径来访问websocket
如题,在web.xml中配置欢迎页面为websocket服务访问地址,无法直接通过访问项目根路径来访问websocket服务(访问路径为:ws://127.0.0.1:8080/项目名/),而访问路径后面加websocket服务url是可以访问的。 请教一下大神,是我的配置存在问题,还是访问websocket本身不支持通过欢迎页面访问(web服务器用的tomcat),如果是不支持的话,请问,通过什么方式能做到“通过访问项目根路径来访问websocket服务”,主要是为了达到通过ip和端口就能直接访问websocket服务,web.xml和websocket类内容如下: **_web.xml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_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>TestWeb</display-name> <servlet> <servlet-name>testAction</servlet-name> <servlet-class>com.ch.TestAction</servlet-class> </servlet> <servlet-mapping> <servlet-name>testAction</servlet-name> <url-pattern>/test</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>ws</welcome-file> </welcome-file-list> </web-app> ``` **_websocket服务类:_** ``` @ServerEndpoint("/ws") public class WebSocketServer { private Session session; //存储用户名和server的对应关系 // private static Set<WebSocketServer> users = new HashSet<WebSocketServer>(); //监听建立连接 @OnOpen public void open(Session session){ this.session=session; System.out.println(getDatetime(new Date()) + " 客户端已连接"); } //监听连接关闭 @OnClose public void close(Session session){ //关闭websocket System.out.println(getDatetime(new Date()) + " 客户端断开连接"); } //监听用户发送的消息并向每个客户端推送消息 @OnMessage public void sendMessage(String message){ System.out.println(getDatetime(new Date()) + " 客户端发送消息:" + message); } @OnError public void onError(Session session, Throwable error) { System.out.println(getDatetime(new Date()) + " 客户端出错"); error.printStackTrace(); } } ```
JavaWeb项目运行时(Tomcat服务器)调用Webservice出错的问题
如题,图中的方法放在JavaWeb项目中项目运行时调用会报错,如果我新建一个 java项目并使用main运行此方法则不会报错 ![图片说明](https://img-ask.csdn.net/upload/201907/23/1563842515_452037.png) ![图片说明](https://img-ask.csdn.net/upload/201907/23/1563842674_954815.png) **大佬们帮看一下吧,万分感谢,急**
多台tomcat服务器之间实现代码同步,Javaweb的
请问一下如何在多台tomcat服务器之间实现代码同步,就是说一台服务器上的Javaweb项目, 和另一台服务器上的Javaweb项目进行实时同步,一旦一台更新,另一台也自动更新; 需要详细点的步骤,最好有个例子;小弟C币不是很多,菜鸟一个,谢谢!
javaweb项目实现分享链接到移动端不登录打开
javaweb项目里要实现一个功能,创建一个页面的分享链接,然后通过移动端扫码或者是直接访问网址,不需要登录直接访问页面,这个功能有大神有实现思路吗?
javaWEb项目查询的是后报错连接池的问题
级别:【WARN】 信息:SQL Error: 0, SQLState: null 位置: org.hibernate.engine.jdbc.spi.SqlExceptionHelper.logExceptions(SqlExceptionHelper.java:144) 线程:http-8080-1 发生时间:2019-11-17 13:37:47 耗时:40162毫秒 级别:【ERROR】 信息:An attempt by a client to checkout a Connection has timed out. 位置: org.hibernate.engine.jdbc.spi.SqlExceptionHelper.logExceptions(SqlExceptionHelper.java:146) 线程:http-8080-1 发生时间:2019-11-17 13:37:47 耗时:40163毫秒 2019-11-17 13:37:56 org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.service() for servlet dispatcher threw exception com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire a resource from com.mchange.v2.resourcepool.BasicResourcePool@6c069ec -- timeout at awaitAvailable() at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1317) 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) at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:139) at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:380) at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:228) at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:171) at org.hibernate.internal.SessionImpl.connection(SessionImpl.java:450) at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:429) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644) at com.zzdx.student.dao.AdminDaoImpl$$EnhancerBySpringCGLIB$$63e9d182.getLogin(<generated>) at com.zzdx.student.service.impl.AdminServiceImpl.getLogin(AdminServiceImpl.java:17) at com.zzdx.student.controller.AdminController.getLogin(AdminController.java:26) 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.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) at javax.servlet.http.HttpServlet.service(HttpServlet.java:723) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:152) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:612) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:503) at java.lang.Thread.run(Thread.java:662)
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同一javaweb项目在同样配置的两台Linux服务器上,一台能正常访问,另一台就报错!
java.lang.reflect.InvocationTargetException sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:483) com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:441) com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:280) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:243) com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:165) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:252) org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52) org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488) org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77) org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91) org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
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