java.lang.IllegalStateException: Cannot call sendRedirect() after the response has been committed

java.lang.IllegalStateException: Cannot call sendRedirect() after the response has been committed

at org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:482)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at org.apache.tomcat.websocket.pojo.PojoMessageHandlerWholeBase.onMessage(PojoMessageHandlerWholeBase.java:80)

at org.apache.tomcat.websocket.WsFrameBase.sendMessageText(WsFrameBase.java:399)

at org.apache.tomcat.websocket.WsFrameBase.processDataText(WsFrameBase.java:500)

at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:295)

at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:131)

at org.apache.tomcat.websocket.WsFrameClient.processSocketRead(WsFrameClient.java:73)

at org.apache.tomcat.websocket.WsFrameClient.access$300(WsFrameClient.java:31)

at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.completed(WsFrameClient.java:131)

at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.completed(WsFrameClient.java:114)

at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)

at sun.nio.ch.Invoker$2.run(Invoker.java:218)

at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:745)

Session 0 close because of CloseReason: code [1006], reason [An unrecoverable IOException occurred so the connection was closed]

解决办法：





在跳转语句后面加上一个return;即可