java - 如何从日志文件解析异常内容？

21-Dec-2015 15:49:17.687 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 73146 ms 21-Dec-2015 15:49:26.497 WARNING [http-nio-8080-exec-7] org.apache.catalina.deploy.NamingResourcesImpl.cleanUp Failed to retrieve JNDI naming context for container [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/project]] so no cleanup was performed for that container javax.naming.NameNotFoundException: Name [comp/env] is not bound in this Context. Unable to find [comp]. at org.apache.naming.NamingContext.lookup(NamingContext.java:818) at org.apache.naming.NamingContext.lookup(NamingContext.java:166) at org.apache.catalina.deploy.NamingResourcesImpl.cleanUp(NamingResourcesImpl.java:993) at org.apache.catalina.deploy.NamingResourcesImpl.stopInternal(NamingResourcesImpl.java:975) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5492) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:141) at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1293) at org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:672) at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:220) at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:136) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) 21-Dec-2015 15:54:57.372 INFO [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance. 21-Dec-2015 15:54:57.373 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"] 21-Dec-2015 15:54:57.374 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"] 21-Dec-2015 15:54:57.374 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina

Pattern headLinePattern = Pattern.compile("([\\w\\.*]+)(:.*)?"); Matcher headLineMatcher = headLinePattern.matcher(breader.readLine()); if (headLineMatcher.find()) { System.out.println("Headline: " + headLineMatcher.group(1)); if (headLineMatcher.group(2) != null) { System.out.println("Optional message " + headLineMatcher.group(2)); } } // "at package.class.method(source.java:123)" Pattern tracePattern = Pattern .compile("\\s*at\\s+([\\w\\.$_]+)\\.([\\w$_]+)(\$.*)?:(\\d+)\$(\\n|\\r\\n)"); Matcher traceMatcher = tracePattern.matcher(breader.readLine()); List<StackTraceElement> stackTrace = new ArrayList<StackTraceElement>(); while (traceMatcher.find()) { String className = traceMatcher.group(1); String methodName = traceMatcher.group(2); String sourceFile = traceMatcher.group(3); int lineNum = Integer.parseInt(traceMatcher.group(4)); stackTrace.add(new StackTraceElement(className, methodName, sourceFile, lineNum)); } System.out.println("Stack: " + stackTrace);

Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: org.apache.catalina.LifecycleException Optional message : Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/project]] Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: Caused Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: java.lang.IllegalStateException Optional message : ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/project]] Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: javax.naming.NameNotFoundException Optional message : Name [comp/env] is not bound in this Context. Unable to find [comp]. Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: 21 Stack: [] Headline: javax.naming.NamingException Optional message : No naming context bound to this class loader Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: [] Headline: at Stack: []