独立部署的fineReport，解压tomcat，直接将fineReport的WebReport放在webapps下面。
启动后，系统能够正常登陆和使用，但是监控catalina.out日志，不断的输出如下错误信息。求解决。
系统环境如下：
65495
tomcat报错信息如下：
com.fr.third.org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Communications link failure
Last packet sent to the server was 0 ms ago.)
at com.fr.third.org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549)
at com.fr.third.org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)
at com.fr.third.org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
at com.fr.data.pool.MemoryConnection.create(Unknown Source)
at com.fr.data.impl.JDBCDatabaseConnection.createConnection(Unknown Source)
at com.fr.fs.systemmonitor.service.FSManagerModuleGetUsageDetailAction.actionCMD(Unknown Source)
at com.fr.web.core.WebActionsDispatcher.dealForActionNoSessionIDCMD(Unknown Source)
at com.fr.fs.systemmonitor.service.FSMonitorService.process(Unknown Source)
at com.fr.stable.fun.impl.NoSessionIDService.process(Unknown Source)
at com.fr.web.core.ReportDispatcher.dealWithOp(Unknown Source)
at com.fr.web.core.ReportDispatcher.dealWeblet(Unknown Source)
at com.fr.web.core.ReportDispatcher.dealWithRequest(Unknown Source)
at com.fr.web.BaseServlet.doGet(Unknown Source)t.PlainSocketImpl.socketConnect(Native Method)
com.fr.web.BaseServlet.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)lure
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
