出错了

错误信息：Could not get JDBC Connection; nested exception is org.postgresql.util.PSQLException: 尝试连线已失败。
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.postgresql.util.PSQLException: 尝试连线已失败。 at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:573) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:637) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:666) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:674) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:718) at org.springframework.jdbc.core.JdbcTemplate$$FastClassByCGLIB$$a4771cb8.invoke() at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:689) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80) at cn.pconline.bbs7.aop.AopSqlMonitor.monitor(AopSqlMonitor.java:25) at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622) at org.springframework.jdbc.core.JdbcTemplate$$EnhancerByCGLIB$$fe2f284.query() at cn.pconline.bbs7.dao.UserDao.batchFindFromDb(UserDao.java:937) at cn.pconline.bbs7.dao.AbstractDao.buildListBatch(AbstractDao.java:264) at cn.pconline.bbs7.dao.AbstractDao.buildListBatch(AbstractDao.java:214) at cn.pconline.bbs7.dao.AbstractDao$$FastClassByCGLIB$$3d2958af.invoke() at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:689) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622) at cn.pconline.bbs7.dao.UserDao$$EnhancerByCGLIB$$1f91db9e.buildListBatch() at cn.pconline.bbs7.service.PostService.makePostUserMap(PostService.java:582) at cn.pconline.bbs7.service.PostService.queryPostAndAuthor(PostService.java:814) at cn.pconline.bbs7.controller.TopicController.toTopicCommon(TopicController.java:208) at cn.pconline.bbs7.controller.TopicController.toTopic(TopicController.java:128) at sun.reflect.GeneratedMethodAccessor144.invoke(Unknown Source) 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:212) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:900) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) at javax.servlet.http.HttpServlet.service(HttpServlet.java:114) at javax.servlet.http.HttpServlet.service(HttpServlet.java:91) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103) at cn.pconline.util.monitor.MonitorFilter.doFilter(MonitorFilter.java:44) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) at cn.pconline.bbs7.utils.EnvFilter.doFilter(EnvFilter.java:61) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:192) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:187) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:265) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:273) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:682) at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:730) at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:649) at java.lang.Thread.run(Thread.java:662) Caused by: org.postgresql.util.PSQLException: 尝试连线已失败。 at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:292) at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49) at org.postgresql.jdbc.PgConnection.(PgConnection.java:195) at org.postgresql.Driver.makeConnection(Driver.java:458) at org.postgresql.Driver.connect(Driver.java:260) at com.caucho.sql.DriverConfig.createDriverConnection(DriverConfig.java:630) at com.caucho.sql.ManagedConnectionImpl.initDriverConnection(ManagedConnectionImpl.java:254) at com.caucho.sql.ManagedConnectionImpl.(ManagedConnectionImpl.java:141) at com.caucho.sql.ManagedFactoryImpl.createManagedConnection(ManagedFactoryImpl.java:139) at com.caucho.jca.ConnectionPool.create(ConnectionPool.java:926) at com.caucho.jca.ConnectionPool.allocatePool(ConnectionPool.java:795) at com.caucho.jca.ConnectionPool.allocate(ConnectionPool.java:756) at com.caucho.jca.ConnectionPool.allocateConnection(ConnectionPool.java:567) at com.caucho.sql.DataSourceImpl.getConnection(DataSourceImpl.java:65) at com.caucho.sql.DBPool.getConnection(DBPool.java:701) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) ... 68 more Caused by: java.net.NoRouteToHostException: No route to host at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:529) at org.postgresql.core.PGStream.(PGStream.java:75) at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:91) at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:192) ... 84 more