GAE / J上出现jsp错误500

编程问答 2022-04-25

问题描述

| 我在App Engine上的JSP出现奇怪的错误500。 这很奇怪，因为该错误仅在jsp的3个firsts请求中发生。 所以我浏览到.jsp网址，我重新加载了2-3次，我有2-3个错误500，我再次点击了重新加载，就可以了。 test.jsp看起来像这样： 
<% String s = \"hello\"; %><h2><% out.println(s); %></h2>
有趣的是，我的html文件有效，js发出的异步请求也有效。 我想我在配置中犯了一个错误，但是我找不到。 编辑： 我试图清空web.xml，queue.xml并重置appengine-web.xml 错误日志位于Pastebin上：pastebin.com/TDZH4xj3 我还禁用了Always On选项，并以新名称重新部署了该应用程序。还是一样的错误。 
2011-04-18 00:10:20.312 /test.jsp 500 3665ms 1820cpu_ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.29 (KHTML,like Gecko) Chrome/12.0.733.0 Safari/534.29,gzip(gfe),gzip(gfe)
92.245.143.214 - - [18/Apr/2011:00:10:20 -0700] \"GET /test.jsp HTTP/1.1\" 500 0 - \"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.29 (KHTML,gzip(gfe)\" \"www.planeteimmo.net\" ms=3666 cpu_ms=1820 api_cpu_ms=0 cpm_usd=0.050630 loading_request=1



W 2011-04-18 00:10:20.297
Error for /test.jsp
java.lang.AbstractMethodError: javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/ServletContext;)Ljavax/servlet/jsp/JspApplicationContext;
    at org.apache.jsp.test_jsp._jspInit(test_jsp.java:22)
    at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:76)
    at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:440)
    at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:97)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:238)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.httpconnection.handleRequest(httpconnection.java:542)
    at org.mortbay.jetty.httpconnection$RequestHandler.headerComplete(httpconnection.java:923)
    at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
    at org.mortbay.jetty.httpconnection.handle(httpconnection.java:404)
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:135)
    at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:261)
    at com.google.apphosting.base.RuntimePb$EvaluationRuntime$2.handleRequest(RuntimePb.java:9285)
    at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:437)
    at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java:573)
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:448)
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:688)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:326)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:318)
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:446)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:636)





C 2011-04-18 00:10:20.307
Uncaught exception from servlet
java.lang.AbstractMethodError: javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/ServletContext;)Ljavax/servlet/jsp/JspApplicationContext;
    at org.apache.jsp.test_jsp._jspInit(test_jsp.java:22)
    at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:76)
    at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:440)
    at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:97)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:238)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.httpconnection.handleRequest(httpconnection.java:542)
    at org.mortbay.jetty.httpconnection$RequestHandler.headerComplete(httpconnection.java:923)
    at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
    at org.mortbay.jetty.httpconnection.handle(httpconnection.java:404)
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:135)
    at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:261)
    at com.google.apphosting.base.RuntimePb$EvaluationRuntime$2.handleRequest(RuntimePb.java:9285)
    at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:437)
    at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java:573)
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:448)
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:688)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:326)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:318)
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:446)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:636)
    

解决方法

  java.lang.AbstractMethodError：javax.servlet.jsp.JspFactory.getJspApplicationContext（Ljavax / servlet / ServletContext;）Ljavax / servlet / jsp / JspApplicationContext; 您的webapp的
/WEB-INF/lib
文件夹中有servletcontainer特定的库，这与运行webapp的servletcontainer提供的库相冲突。例如，如果您从Apache Tomcat中将“ 3”复制到webapp的“ 2”文件夹中，并在完全不同的版本/版本的servlet容器上运行webapp，则可能会发生这种情况。在您的特定情况下，其中一个库是较旧的版本，缺少在异常消息中提到的方法。 在
/WEB-INF/lib
中摆脱它们。他们绝对不属于那里。它们应该已经由servlet容器本身提供了。如果您这样做是为了避免编译错误（这是入门者将其放在错误位置的更常见原因之一），则需要以不同的方式解决。     ,这也发生在我身上。我在/ WEB-INF / lib目录中有gwt-dev.jar。它不应该在那里。     
500jspjsp出现出现错误错误错误