java.io.IOException: java.util.concurrent.ExecutionException: java.net.SocketException: Software cau

在用websocket时，由于直接关闭浏览器导致后台报错如下:

java.io.IOException: java.util.concurrent.ExecutionException: java.net.SocketException: Software caused connection abort: socket write error    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessageBlock(WsRemoteEndpointImplBase.java:230) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsSession.sendCloseMessage(WsSession.java:477) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsSession.onClose(WsSession.java:440) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsFrameBase.processDataControl(WsFrameBase.java:316) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:270) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:116) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:54) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler$WsReadListener.onDataAvailable(WsHttpUpgradeHandler.java:192) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.http11.upgrade.AbstractServletInputStream.onDataAvailable(AbstractServletInputStream.java:178) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.http11.upgrade.AbstractProcessor.upgradeDispatch(AbstractProcessor.java:92) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:601) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) [tomcat-embed-core-7.0.47.jar:7.0.47]    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]Caused by: java.util.concurrent.ExecutionException: java.net.SocketException: Software caused connection abort: socket write error    at org.apache.tomcat.websocket.FutureToSendHandler.get(FutureToSendHandler.java:102) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessageBlock(WsRemoteEndpointImplBase.java:225) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    ... 14 common frames omittedCaused by: java.net.SocketException: Software caused connection abort: socket write error    at java.net.SocketOutputStream.socketWrite0(Native Method) ~[na:1.8.0_91]    at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109) ~[na:1.8.0_91]    at java.net.SocketOutputStream.write(SocketOutputStream.java:153) ~[na:1.8.0_91]    at org.apache.coyote.http11.upgrade.BioServletOutputStream.doWrite(BioServletOutputStream.java:37) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.http11.upgrade.AbstractServletOutputStream.writeInternal(AbstractServletOutputStream.java:123) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.http11.upgrade.AbstractServletOutputStream.write(AbstractServletOutputStream.java:90) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.onWritePossible(WsRemoteEndpointImplServer.java:84) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.doWrite(WsRemoteEndpointImplServer.java:71) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(WsRemoteEndpointImplBase.java:368) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessage(WsRemoteEndpointImplBase.java:265) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessageBlock(WsRemoteEndpointImplBase.java:220) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    ... 14 common frames omitted09:47:42.530 [http-bio-8080-exec-1] DEBUG o.s.w.s.a.NativeWebSocketSession - Closing StandardWebSocketSession[id=1, uri=/ArthasMenethil/webSocketServer]09:47:42.531 [http-bio-8080-exec-1] DEBUG o.s.w.s.h.ExceptionWebSocketHandlerDecorator - Closing due to exception for StandardWebSocketSession[id=1, uri=/ArthasMenethil/webSocketServer]java.lang.IllegalStateException: Message will not be sent because the WebSocket session has been closed    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(WsRemoteEndpointImplBase.java:302) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessage(WsRemoteEndpointImplBase.java:265) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessageBlock(WsRemoteEndpointImplBase.java:220) ~[tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsSession.sendCloseMessage(WsSession.java:477) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsSession.doClose(WsSession.java:417) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsSession.close(WsSession.java:394) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.springframework.web.socket.adapter.standard.StandardWebSocketSession.closeInternal(StandardWebSocketSession.java:217) ~[spring-websocket-4.2.6.RELEASE.jar:4.2.6.RELEASE]    at org.springframework.web.socket.adapter.AbstractWebSocketSession.close(AbstractWebSocketSession.java:139) ~[spring-websocket-4.2.6.RELEASE.jar:4.2.6.RELEASE]    at org.springframework.web.socket.adapter.AbstractWebSocketSession.close(AbstractWebSocketSession.java:130) ~[spring-websocket-4.2.6.RELEASE.jar:4.2.6.RELEASE]    at com.websocket.WebsocketHandler.handleTransportError(WebsocketHandler.java:114) ~[classes/:na]    at org.springframework.web.socket.handler.WebSocketHandlerDecorator.handleTransportError(WebSocketHandlerDecorator.java:80) ~[spring-websocket-4.2.6.RELEASE.jar:4.2.6.RELEASE]    at org.springframework.web.socket.handler.LoggingWebSocketHandlerDecorator.handleTransportError(LoggingWebSocketHandlerDecorator.java:64) ~[spring-websocket-4.2.6.RELEASE.jar:4.2.6.RELEASE]    at org.springframework.web.socket.handler.ExceptionWebSocketHandlerDecorator.handleTransportError(ExceptionWebSocketHandlerDecorator.java:68) ~[spring-websocket-4.2.6.RELEASE.jar:4.2.6.RELEASE]    at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.onError(StandardWebSocketHandlerAdapter.java:153) [spring-websocket-4.2.6.RELEASE.jar:4.2.6.RELEASE]    at org.apache.tomcat.websocket.WsSession.sendCloseMessage(WsSession.java:491) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsSession.onClose(WsSession.java:440) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsFrameBase.processDataControl(WsFrameBase.java:316) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:270) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:116) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:54) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler$WsReadListener.onDataAvailable(WsHttpUpgradeHandler.java:192) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.http11.upgrade.AbstractServletInputStream.onDataAvailable(AbstractServletInputStream.java:178) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.http11.upgrade.AbstractProcessor.upgradeDispatch(AbstractProcessor.java:92) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:601) [tomcat-embed-core-7.0.47.jar:7.0.47]    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) [tomcat-embed-core-7.0.47.jar:7.0.47]    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
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这是由于在直接关闭浏览器之前没有关闭websocket导致的，所以要记得正确关闭websocket，在关闭浏览器之前 
解决:

window.onbeforeunload = function(event) {     WS.onclose =function(){};    WS.close();}