大气无法在Glassfish 3.1.2上获得会话 [英] Atmosphere can't get session on Glassfish 3.1.2

问题描述

我从Atmosphere获得了聊天示例，现在我想获得会话，但我得到一个空指针异常。我的配置：

• GlassFish 3.1.2


• 氛围1.0.0-SNAPSHOT





My ChatAtmosphereHandler.java文件：



  @覆盖
 public void onRequest（AtmosphereResource r）抛出IOException {
 
 AtmosphereRequest req = r.getRequest（）; 
 
 //首先，告诉Atmosphere允许通过暂停进行双向通信。 
 if（req.getMethod（）。equalsIgnoreCase（GET））{
 
 / * -------由我添加的行------- * / 
 double i = Math.random（）; 
 System.out.println（i）; 
 req.getSession（true）.setAttribute（user，i）; //空指针异常
 / * --------------------------------- * / 
 //样本只需要协商标题来列出所有支持的传输。 
 if（req.getHeader（negotiating）== null）{
 r.suspend（）; 
} else {
 r.getResponse（）。getWriter（）。write（OK）; 
} 
 //其次，广播信息给所有连接的用户。 
} else if（req.getMethod（）。equalsIgnoreCase（POST））{
 r.getBroadcaster（）。broadcast（req.getReader（）。readLine（）。trim（））; 
 
 
  

和异常堆栈跟踪：

  INFO：18：07：19.816 [http-thread-pool-8080（4）] WARN oawebsocket.WebSocketProcessor  - 调用AtmosphereFramework.doCometSupport失败）
 java.lang.NullPointerException：null 
 at com.sun.grizzly.tcp.http11.GrizzlyRequest.doGetSession（GrizzlyRequest.java:2271）〜[grizzly-utils.jar：1.9.46] 
 at com.sun.grizzly.tcp.http11.GrizzlyRequest.getSession（GrizzlyRequest.java：2226）〜[grizzly-utils.jar：1.9.46] 
 at com.sun.grizzly.http.servlet .httpServletRequestImpl.getSession（HttpServletRequestImpl.java:986）〜[grizzly-http-servlet.jar：1.9.46] 
 at com.sun.grizzly.http.servlet.HttpServletRequestImpl.getSession（HttpServletRequestImpl.java:1009） 〜[grizzly-http-servlet.jar：1.9.46] 
在org.atmosphere.cpr.AtmosphereRequest.createSession（AtmosphereRequest.java:606）〜[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0 .0-SNAPSHOT] 
 at org.atmosphere.cpr.Atm osphereRequest.getSession（AtmosphereRequest.java:580）〜[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
在org.atmosphere.cpr.AtmosphereRequest.getSession（AtmosphereRequest.java:600 ）〜[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
在org.atmosphere.samples.chat.ChatAtmosphereHandler.onRequest（ChatAtmosphereHandler.java:43）〜[ChatAtmosphereHandler.class： na] 
 at org.atmosphere.cpr.AsynchronousProcessor.action（AsynchronousProcessor.java:232）〜[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
 at org。 atmosphere.cpr.AsynchronousProcessor.suspended（AsynchronousProcessor.java:165）〜[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
在org.atmosphere.container.GlassFishWebSocketSupport.service（GlassFishWebSocketSupport .java：111）〜[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
 at org.atmosphere.cpr.AtmosphereFramework.doCometSupport（AtmosphereFramework.java:1125）〜[atmosphere-运行时-1.0.0-SNAPSHOT.jar：1.0.0-SNAP SHOT] 
 at org.atmosphere.websocket.WebSocketProcessor.dispatch（WebSocketProcessor.java:183）[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
 at org.atmosphere .websocket.WebSocketProcessor.dispatch（WebSocketProcessor.java:112）[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
 at org.atmosphere.container.GlassFishWebSocketSupport $ GrizzlyApplication.onConnect（GlassFishWebSocketSupport .java：163）[atmosphere-runtime-1.0.0-SNAPSHOT.jar：1.0.0-SNAPSHOT] 
 at com.sun.grizzly.websockets.DefaultWebSocket.onConnect（DefaultWebSocket.java:128）[grizzly- websockets.jar：1.9.46] 
 at com.sun.grizzly.websockets.WebSocketEngine.upgrade（WebSocketEngine.java:188）[grizzly-websockets.jar：1.9.46] 
 at com.sun .grizzly.websockets.WebSocketAsyncFilter.doFilter（WebSocketAsyncFilter.java:54）[grizzly-websockets.jar：1.9.46] 
 at com.sun.grizzly.arp.DefaultAsyncExecutor.invokeFilters（DefaultAsyncExecutor.java:171）[ grizzly-http.jar：1.9.46] 
 at com.sun.grizzly.arp.DefaultAsyncExecutor.interrupt（DefaultAsyncExecutor.java:143）[grizzly-http.jar：1.9.46] 
 at com.sun.grizzly.arp.AsyncProcessorTask.doTask（AsyncProcessorTask.java： 102）[grizzly-http.jar：1.9.46] 
 at com.sun.grizzly.http.TaskBase.run（TaskBase.java:193）[grizzly-http.jar：1.9.46] 
在com.sun.grizzly.http.TaskBase.execute（TaskBase.java:175）[grizzly-http.jar：1.9.46] 
 at com.sun.grizzly.arp.DefaultAsyncHandler.handle（DefaultAsyncHandler。 java：145）[grizzly-http.jar：1.9.46] 
 at com.sun.grizzly.arp.AsyncProtocolFilter.execute（AsyncProtocolFilter.java:210）[grizzly-http.jar：1.9.46] 
 at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter（DefaultProtocolChain.java:137）[grizzly-framework.jar：1.9.46] 
 at com.sun.grizzly.DefaultProtocolChain.execute（DefaultProtocolChain.java： 104）[grizzly-framework.jar：1.9.46] 
 at com.sun.grizzly.DefaultProtocolChain.execute（DefaultProtocolChain.java:90）[grizzly-framework.jar： 1.9.46] 
 at com.sun.grizzly.http.HttpProtocolChain.execute（HttpProtocolChain.java:79）[grizzly-http.jar：1.9.46] 
 at com.sun.grizzly.ProtocolChainContextTask .doCall（ProtocolChainContextTask.java:54）[grizzly-framework.jar：1.9.46] 
 at com.sun.grizzly.SelectionKeyContextTask.call（SelectionKeyContextTask.java:59）[grizzly-framework.jar：1.9。 46] 
 at com.sun.grizzly.ContextTask.run（ContextTask.java:71）[grizzly-framework.jar：1.9.46] 
 at com.sun.grizzly.util.AbstractThreadPool $ Worker .doWork（AbstractThreadPool.java:532）[grizzly-utils.jar：1.9.46] 
 at com.sun.grizzly.util.AbstractThreadPool $ Worker.run（AbstractThreadPool.java:513）[grizzly-utils。 jar：1.9.46] 
 at java.lang.Thread.run（Thread.java:722）[na：1.7.0_03] 
  




解决方案

此后会话处理代码已被修改。请使用最新的主码重试。




I got the chat example working from Atmosphere, and now I want to get the session, but I get a null pointer exception. My configuration:

• GlassFish 3.1.2
• Atmosphere 1.0.0-SNAPSHOT

My ChatAtmosphereHandler.java file:

@Override
public void onRequest(AtmosphereResource r) throws IOException {

    AtmosphereRequest req = r.getRequest();

    // First, tell Atmosphere to allow bi-directional communication by suspending.
    if (req.getMethod().equalsIgnoreCase("GET")) {

    /* ------- ADDED LINES BY ME ------- */
        double i = Math.random();
        System.out.println(i);
        req.getSession(true).setAttribute("user", i); //Null pointer exception
    /* --------------------------------- */
        // The negotiation header is just needed by the sample to list all the supported transport.
        if (req.getHeader("negotiating") == null) {
            r.suspend();
        } else {
            r.getResponse().getWriter().write("OK");
        }
    // Second, broadcast message to all connected users.
    } else if (req.getMethod().equalsIgnoreCase("POST")) {
        r.getBroadcaster().broadcast(req.getReader().readLine().trim());
    }
}

And the exception stack trace:

INFO: 18:07:19.816 [http-thread-pool-8080(4)] WARN  o.a.websocket.WebSocketProcessor - Failed invoking AtmosphereFramework.doCometSupport()
java.lang.NullPointerException: null
    at com.sun.grizzly.tcp.http11.GrizzlyRequest.doGetSession(GrizzlyRequest.java:2271) ~[grizzly-utils.jar:1.9.46]
    at com.sun.grizzly.tcp.http11.GrizzlyRequest.getSession(GrizzlyRequest.java:2226) ~[grizzly-utils.jar:1.9.46]
    at com.sun.grizzly.http.servlet.HttpServletRequestImpl.getSession(HttpServletRequestImpl.java:986) ~[grizzly-http-servlet.jar:1.9.46]
    at com.sun.grizzly.http.servlet.HttpServletRequestImpl.getSession(HttpServletRequestImpl.java:1009) ~[grizzly-http-servlet.jar:1.9.46]
    at org.atmosphere.cpr.AtmosphereRequest.createSession(AtmosphereRequest.java:606) ~[atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.cpr.AtmosphereRequest.getSession(AtmosphereRequest.java:580) ~[atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.cpr.AtmosphereRequest.getSession(AtmosphereRequest.java:600) ~[atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.samples.chat.ChatAtmosphereHandler.onRequest(ChatAtmosphereHandler.java:43) ~[ChatAtmosphereHandler.class:na]
    at org.atmosphere.cpr.AsynchronousProcessor.action(AsynchronousProcessor.java:232) ~[atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.cpr.AsynchronousProcessor.suspended(AsynchronousProcessor.java:165) ~[atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.container.GlassFishWebSocketSupport.service(GlassFishWebSocketSupport.java:111) ~[atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.cpr.AtmosphereFramework.doCometSupport(AtmosphereFramework.java:1125) ~[atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.websocket.WebSocketProcessor.dispatch(WebSocketProcessor.java:183) [atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.websocket.WebSocketProcessor.dispatch(WebSocketProcessor.java:112) [atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at org.atmosphere.container.GlassFishWebSocketSupport$GrizzlyApplication.onConnect(GlassFishWebSocketSupport.java:163) [atmosphere-runtime-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
    at com.sun.grizzly.websockets.DefaultWebSocket.onConnect(DefaultWebSocket.java:128) [grizzly-websockets.jar:1.9.46]
    at com.sun.grizzly.websockets.WebSocketEngine.upgrade(WebSocketEngine.java:188) [grizzly-websockets.jar:1.9.46]
    at com.sun.grizzly.websockets.WebSocketAsyncFilter.doFilter(WebSocketAsyncFilter.java:54) [grizzly-websockets.jar:1.9.46]
    at com.sun.grizzly.arp.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:171) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.arp.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:143) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.arp.AsyncProcessorTask.doTask(AsyncProcessorTask.java:102) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.http.TaskBase.run(TaskBase.java:193) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.http.TaskBase.execute(TaskBase.java:175) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.arp.DefaultAsyncHandler.handle(DefaultAsyncHandler.java:145) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.arp.AsyncProtocolFilter.execute(AsyncProtocolFilter.java:210) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) [grizzly-framework.jar:1.9.46]
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) [grizzly-framework.jar:1.9.46]
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) [grizzly-framework.jar:1.9.46]
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) [grizzly-http.jar:1.9.46]
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) [grizzly-framework.jar:1.9.46]
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) [grizzly-framework.jar:1.9.46]
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71) [grizzly-framework.jar:1.9.46]
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) [grizzly-utils.jar:1.9.46]
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) [grizzly-utils.jar:1.9.46]
    at java.lang.Thread.run(Thread.java:722) [na:1.7.0_03]

解决方案

The session handling code has been modified since then. Please try again with the latest master code.

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