我已经在Apache Tomcat 7.0.41中部署了Struts 1.3 web应用程序。tomcat服务器似乎经常挂起&无法处理任何显示浏览器上未找到页面错误的请求，类似于已停止的tomcat服务器，但实际上在Windows服务中，tomcat服务仍显示为已启动。重新启动后，服务器工作正常。
以下错误记录在Apache Software Foundation\Tomcat 7.0\logs\tomcat7 stderr.2013-07-05.log中
Jul 5, 2013 11:57:48 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/pms] appears to have started a thread named [File Reaper] but has failed to stop it. This is very likely to create a memory leak.
Jul 5, 2013 11:57:53 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-bio-8085"]
Jul 5, 2013 11:57:54 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["ajp-bio-8010"]
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
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:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Unknown Source)
at java.util.Properties.load0(Unknown Source)
at java.util.Properties.load(Unknown Source)
at com.krwssa.log.SystemLogManager.getLogger(SystemLogManager.java:39)
at com.krwssa.db.DatabaseConnection.<clinit>(DatabaseConnection.java:14)
at com.krwssa.action.LoginAction.login(LoginAction.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:274)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:194)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
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:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception in thread "http-bio-8085-exec-127" java.lang.OutOfMemoryError: Java heap space
Exception in thread "http-bio-8085-exec-133" java.lang.OutOfMemoryError: Java heap space
at org.apache.coyote.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:99)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:931)
Exception in thread "http-bio-8085-exec-103" Exception in thread "http-bio-8085-Acceptor-0" at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.OutOfMemoryError: Java heap space
Exception in thread "http-bio-8085-AsyncTimeout" at java.net.Socket.setSoLinger(Unknown Source)
at org.apache.tomcat.util.net.SocketProperties.setProperties(SocketProperties.java:194)
at org.apache.tomcat.util.net.JIoEndpoint.setSocketOptions(JIoEndpoint.java:485)
at org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:228)
at java.lang.Thread.run(Unknown Source)
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
2013-07-05 06:57:58 Commons Daemon procrun stderr initialized
web应用程序确实包含一些具有Struts1.3 FormFile元素的表单，这些元素用于将文件上传到服务器。该应用程序在Tomcat的开发模式下运行良好，该模式是在MyEclipse IDE中配置的。看来文件收割者线程是罪魁祸首还是罪魁祸首？如何修复或处理此问题？
谨致问候，湿婆
您应该将数据库设置配置为与Tomcat服务器一起运行。您的后期配置中有未知内容，但我猜您只是没有在应用程序中包含数据库驱动程序，或者数据库驱动程序没有安装在Tomcat服务器上。