type Exception report
message Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. ### The error may exist in file [/home/apache-tomcat-7.0.72/webapps/yimengsg/WEB-INF/classes/mapper/NewsDao.xml] ### The error may involve com.yimengsg.dao.NewsDao.selectAllTitle ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:973) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. ### The error may exist in file [/home/apache-tomcat-7.0.72/webapps/yimengsg/WEB-INF/classes/mapper/NewsDao.xml] ### The error may involve com.yimengsg.dao.NewsDao.selectAllTitle ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:76) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:399) com.sun.proxy.$Proxy28.selectList(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205) org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) com.sun.proxy.$Proxy35.selectAllTitle(Unknown Source) com.yimengsg.service.impl.UserServiceImpl.selectAllNewsTile(UserServiceImpl.java:36) com.yimengsg.web.AdminController.listnewstitle(AdminController.java:86) sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. ### The error may exist in file [/home/apache-tomcat-7.0.72/webapps/yimengsg/WEB-INF/classes/mapper/NewsDao.xml] ### The error may involve com.yimengsg.dao.NewsDao.selectAllTitle ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:122) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113) sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:386) com.sun.proxy.$Proxy28.selectList(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205) org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) com.sun.proxy.$Proxy35.selectAllTitle(Unknown Source) com.yimengsg.service.impl.UserServiceImpl.selectAllNewsTile(UserServiceImpl.java:36) com.yimengsg.web.AdminController.listnewstitle(AdminController.java:86) sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:315) org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:75) org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:61) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:82) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:120) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113) sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:386) com.sun.proxy.$Proxy28.selectList(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205) org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) com.sun.proxy.$Proxy35.selectAllTitle(Unknown Source) com.yimengsg.service.impl.UserServiceImpl.selectAllNewsTile(UserServiceImpl.java:36) com.yimengsg.web.AdminController.listnewstitle(AdminController.java:86) sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106) com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:65) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:527) com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:315) org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:75) org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:61) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:82) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:120) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113) sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:386) com.sun.proxy.$Proxy28.selectList(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205) org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) com.sun.proxy.$Proxy35.selectAllTitle(Unknown Source) com.yimengsg.service.impl.UserServiceImpl.selectAllNewsTile(UserServiceImpl.java:36) com.yimengsg.web.AdminController.listnewstitle(AdminController.java:86) sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire a resource from com.mchange.v2.resourcepool.BasicResourcePool@7b744017 -- timeout at awaitAvailable() com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1317) com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557) com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525) com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:315) org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:75) org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:61) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:82) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:120) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113) sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:386) com.sun.proxy.$Proxy28.selectList(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205) org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) com.sun.proxy.$Proxy35.selectAllTitle(Unknown Source) com.yimengsg.service.impl.UserServiceImpl.selectAllNewsTile(UserServiceImpl.java:36) com.yimengsg.web.AdminController.listnewstitle(AdminController.java:86) sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.72 logs.