Could not get JDBC Connection; Nested exception is org.apache.commons.dbcp.SQLNestedException:

July 17, 2014 4:56:01afternoon Org.apache.catalina.core.StandardWrapperValve InvokeSEVERE:Servlet.service () forservlet [Dispatcher] in context with path [] threw exception [Request processing failed; Nested exception is org.mybatis.spring.MyBatisSystemException:nested E  Xception is org.apache.ibatis.exceptions.PersistenceException: # # # Error querying database. Cause:org.springframework.jdbc.CannotGetJdbcConnectionException:Could not get JDBC Connection; Nested exception is org.apache.commons.dbcp.SQLNestedException:Cannot create Poolableconnectionfactory (Io exception: the Network Adapter could not establish the connection) # # # # The error may be exist in * * *. xml### the error may involve com.supervisory.dao.securityservicedao.selectuserlogin### the error occurred whileexecuting a query### Cause:org.springframework.jdbc.CannotGetJdbcConnectionException:Could not get JDBC Connection; Nested exception is org.apache.commons.dbcp.SQLNestedException:Cannot create Poolableconnectionfactory (Io exception: the Network Adapter could not establish the connection)] with root Causejava.sql.SQLException:Io exception: the network Adapter Coul D not establish the connection at Oracle.jdbc.driver.DatabaseError.throwSqlException (Databaseerror.java:112) at Oracle.jdbc.driver.DatabaseError.throwSqlException (Databaseerror.java:146) at Oracle.jdbc.driver.DatabaseError.throwSqlException (Databaseerror.java:255) at Oracle.jdbc.driver.T4CConnection.logon (T4cconnection.java:387) at oracle.jdbc.driver.PhysicalConnection.<init> (physicalconnection.java:439) at oracle.jdbc.driver.T4CConnection.<init> (t4cconnection.java:165) at Oracle.jdbc.driver.T4CDriverExtension.getConnection (T4cdriverextension.java:35) at Oracle.jdbc.driver.OracleDriver.connect (Oracledriver.java:801) at Org.apache.commons.dbcp.DriverConnectionFactory.createConnection (Driverconnectionfactory.java:38) at Org.apache.commons.dbcp.PoolableConnectionFactory.makeObject (Poolableconnectionfactory.java:582) at Org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory (Basicdatasource.java:1556) at Org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory (Basicdatasource.java:1545) at Org.apache.commons.dbcp.BasicDataSource.createDataSource (Basicdatasource.java:1388) at Org.apache.commons.dbcp.BasicDataSource.getConnection (Basicdatasource.java:1044) at Org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection (Datasourceutils.java:111) at Org.springframework.jdbc.datasource.DataSourceUtils.getConnection (Datasourceutils.java:77) at Org.mybatis.spring.transaction.SpringManagedTransaction.openConnection (Springmanagedtransaction.java: 80) at Org.mybatis.spring.transaction.SpringManagedTransaction.getConnection (Springmanagedtransaction.java: 66) at Org.apache.ibatis.executor.BaseExecutor.getConnection (Baseexecutor.java:279) at Org.apache.ibatis.executor.SimpleExecutor.prepareStatement (Simpleexecutor.java:69) at Org.apache.ibatis.executor.SimpleExecutor.doQuery (Simpleexecutor.java:56) at Org.apache.ibatis.executor.BaseExecutor.queryFromDatabase (Baseexecutor.java:267) at Org.apache.ibatis.executor.BaseExecutor.query (Baseexecutor.java:141) at Org.apache.ibatis.executor.CachingExecutor.query (Cachingexecutor.java:105) at Org.apache.ibatis.executor.CachingExecutor.query (Cachingexecutor.java:81) at Org.apache.ibatis.session.defaults.DefaultSqlSession.selectList (Defaultsqlsession.java:101) at Org.apache.ibatis.session.defaults.DefaultSqlSession.selectList (Defaultsqlsession.java:95) at Org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne (Defaultsqlsession.java:59) 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:30T) at Org.mybatis.spring.sqlsessiontemplate$sqlsessioninterceptor.invoke (Sqlsessiontemplate.java:355) at Com.sun.proxy. $Proxy 6.selectOne (Unknown Source) at Org.mybatis.spring.SqlSessionTemplate.selectOne (sqlsess Iontemplate.java:160) at Org.apache.ibatis.binding.MapperMethod.execute (Mappermethod.java:95) at Org.apache.ibatis.binding.MapperProxy.invoke (Mapperproxy.java:40) at Com.sun.proxy. $Proxy 8.selectUserLogin (Unknown Source) at Com.supervisory.service.impl.SecurityServiceImpl. Selectuserlogin (Securityserviceimpl.java:42) at Com.supervisory.web.security.LoginAction.handleRequest (Loginaction.java:71) at Org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle ( Simplecontrollerhandleradapter.java:48) at Org.springframework.web.servlet.DispatcherServlet.doDispatch (Dispatcherservlet.java:925) at Org.springframework.web.servlet.DispatcherServlet.doService (Dispatcherservlet.java:856) at Org.springframework.web.servlet.FrameworkServlet.processRequest (Frameworkservlet.java:936) at Org.springframework.web.servlet.FrameworkServlet.doPost (Frameworkservlet.java:838) at Javax.servlet.http.HttpServlet.service (Httpservlet.java:641) at Org.springframework.web.servlet.FrameworkServlet.service (Frameworkservlet.java:812) at Javax.servlet.http.HttpServlet.service (Httpservlet.java:722) at Org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (Applicationfilterchain.java:305) at Org.apache.catalina.core.ApplicationFilterChain.doFilter (Applicationfilterchain.java:210) at Org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal (Characterencodingfilter.java: 88) at Org.springframework.web.filter.OncePerRequestFilter.doFilter (Onceperrequestfilter.java:107) at Org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (Applicationfilterchain.java:243) at Org.apache.catalina.core.ApplicationFilterChain.doFilter (Applicationfilterchain.java:210) at Org.apache.catalina.core.StandardWrapperValve.invoke (Standardwrappervalve.java:222) at Org.apache.catalina.core.StandardContextValve.invoke (Standardcontextvalve.java:123) at Org.apache.catalina.authenticator.AuthenticatorBase.invoke (Authenticatorbase.java:472) at Org.apache.catalina.core.StandardHostValve.invoke (Standardhostvalve.java:168) at Org.apache.catalina.valves.ErrorReportValve.invoke (Errorreportvalve.java:99) at Org.apache.catalina.core.StandardEngineValve.invoke (Standardenginevalve.java:118) at Org.apache.catalina.connector.CoyoteAdapter.service (Coyoteadapter.java:407) at Org.apache.coyote.http11.AbstractHttp11Processor.process (Abstracthttp11processor.java:1002) at Org.apache.coyote.abstractprotocol$abstractconnectionhandler.process (Abstractprotocol.java:585) at Org.apache.tomcat.util.net.jioendpoint$socketprocessor.run (Jioendpoint.java:312) at Java.util.concurrent.ThreadPoolExecutor.runWorker (Threadpoolexecutor.java:1145) at Java.util.concurrent.threadpoolexecutor$worker.run (Threadpoolexecutor.java:615) at Java.lang.Thread.run (Thread.java:722)

The findings are caused by a network that is not available. Because a VPN is required at remote. If you encounter this problem, you can first check the network