Question

下面的代码尝试通过Java websocket发送消息;但是，它偶尔会产生错误（如下面的错误堆栈所示）。任何人都可以提出问题的解决方案吗？

代码：

  if(currSession != null && currSession.isOpen()) {
          try {
               currSession.sendMessage(new BinaryMessage(flowTable.getBytes()));
              } catch (IOException e) {
         e.printStackTrace();
          }

错误堆栈：

java.lang.IllegalStateException: The remote endpoint was in state [BINARY_PARTIAL_WRITING] which is an invalid state for called method
                at org.apache.tomcat.websocket.WsRemoteEndpointImplBase$StateMachine.checkState(WsRemoteEndpointImplBase.java:1015)
                at org.apache.tomcat.websocket.WsRemoteEndpointImplBase$StateMachine.binaryPartialStart(WsRemoteEndpointImplBase.java:963)
                at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendPartialBytes(WsRemoteEndpointImplBase.java:140)
                at org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendBinary(WsRemoteEndpointBasic.java:56)
                at org.springframework.web.socket.adapter.standard.StandardWebSocketSession.sendBinaryMessage(StandardWebSocketSession.java:202)
                at org.springframework.web.socket.adapter.AbstractWebSocketSession.sendMessage(AbstractWebSocketSession.java:107)
                at com.hp.fucms.impl.TopoRestController.setFlowTable(TopoRestController.java:147)

Answer 1

使用同步方法包装代码，并通过此新方法汇集所有调用。看来tomcat web套接字无法处理同时放在同一websocket会话中的多条消息。我的代码在Glassfish下运行得很完美，当我搬到Tomcat时，它立即崩溃了。然后我按照上面的解释改变了我的代码，我的所有问题都消失了......而且有很多欢乐。

二进制部分写错误

1 个答案: