谷歌應用引擎500錯誤，它應該200而不是500

requestToken = function() { 
    var getTokenURI = '/gettoken?userid=' + userid; 
    var httpRequest = makeRequest(getTokenURI, true); 

    httpRequest.onreadystatechange = function() { 
     if (httpRequest.readyState == 4) { 
      if (httpRequest.status == 200) { 
       openChannel(httpRequest.responseText); 
      } else { 
       alert('ERROR: AJAX request status = ' + httpRequest.status); 
      } 
     } 
    } 
}; 

function makeRequest(url, async) { 
    var httpRequest; 
    if (window.XMLHttpRequest) { 

     httpRequest = new XMLHttpRequest(); 

    } else if (window.ActiveXObject) { 
     // IE 
     try { 

      httpRequest = new ActiveXObject("Msxml2.XMLHTTP"); 

     } catch (e) { 
      try { 

       httpRequest = new ActiveXObject("Microsoft.XMLHTTP"); 

      } catch (e) { 
      } 
     } 
    } 

    if (!httpRequest) { 

     return false; 
    } 

    httpRequest.open('POST', url, async); 
    httpRequest.send(); 

    return httpRequest; 
}

它在本地主機上運行良好...但在谷歌應用程序引擎它httpRequest.status等於500，並進入其他語句。爲什麼？在谷歌應用程序引擎谷歌應用引擎500錯誤，它應該200而不是500

LOG：

/getFriendList?userid=d 500 253ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.97 Safari/537.11 
175.110.179.86 - - [17/Dec/2012:08:35:33 -0800] "POST /getFriendList?userid=d HTTP/1.1" 500 0 "http://faisalimmsngr.appspot.com/" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.97 Safari/537.11" "faisalimmsngr.appspot.com" ms=254 cpu_ms=110 instance=00c61b117caf2d11ca57d2a2296ccd0b902b038a 
W 2012-12-17 08:35:33.272 
Failed startup of context [email protected]10ff62a{/,/base/data/home/apps/s~faisalimmsngr/1.363934467542140431} 
org.mortbay.util.MultiException[java.lang.UnsupportedClassVersionError: adv/web/mid/exam/FriendServlet : Unsupported major.minor version 51.0, java.lang.UnsupportedClassVersionError: adv/web/mid/exam/MessageServlet : Unsupported major.minor version 51.0, java.lang.UnsupportedClassVersionError: adv/web/mid/exam/TokenServlet : Unsupported major.minor version 51.0] 
    at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:656) 
    at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) 
    at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) 
    at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) 
    at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) 
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) 
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:219) 
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:194) 
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:134) 
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:447) 
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:454) 
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:461) 
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:703) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:338) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:330) 
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:458) 
    at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251) 
    at java.lang.Thread.run(Thread.java:679) 
java.lang.UnsupportedClassVersionError: adv/web/mid/exam/FriendServlet : Unsupported major.minor version 51.0 
    at com.google.appengine.runtime.Request.process-c04431eac3a1f275(Request.java) 
    at java.lang.ClassLoader.defineClass1(Native Method) 
    at java.lang.ClassLoader.defineClass(ClassLoader.java:634) 
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) 
    at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:616) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266) 
    at org.mortbay.util.Loader.loadClass(Loader.java:91) 
    at org.mortbay.util.Loader.loadClass(Loader.java:71) 
    at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:73) 
    at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:242) 
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) 
    at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685) 
    at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) 
    at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) 
    at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) 
    at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) 
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) 
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:454) 
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:461) 
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:703) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:338) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:330) 
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:458) 
    at java.lang.Thread.run(Thread.java:679)

來源

2012-12-17 Faisal Amjad

我們怎麼知道？它在App Engine日誌中說了什麼？ –

失敗上下文啓動[email protected]1353154 {/，/鹼/數據/家/應用/秒〜faisalimmsngr/1.363934024060099292} org.mortbay.util.MultiException [java.lang.UnsupportedClassVersionError錯誤：adv/web/mid/exam/FriendServlet：不支持的major.minor版本51.0，java.lang.UnsupportedClassVersionError：adv/web/mid/exam/MessageServlet：不支持的major.minor版本51.0，java.lang.UnsupportedClassVersionError：adv/web/mid/exam/TokenServlet：不受支持的major.minor版本51.0] –

向我們展示了makeRequest方法。 –

這是因爲你使用JDK 7，你應該使用JDK 6

來源

2012-12-17 18:00:50

谷歌應用引擎500錯誤，它應該200而不是500

回答

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