采用springboot 开发websocket简单示例，本机正常，部署到虚拟环境centos7，就一直报：

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.socket.sockjs.SockJsException: Uncaught failure in SockJS request, uri=http://192.168.1.217:9000/echo/243/c04rb395/xhr; nested exception is org.springframework.web.socket.sockjs.SockJsTransportFailureException: Failed to open session; nested exception is org.springframework.web.socket.sockjs.SockJsTransportFailureException: Failed to write SockJsFrame content='o'; nested exception is org.apache.catalina.connector.ClientAbortException: java.io.IOException: 断开的管道] with root cause


java.io.IOException: 断开的管道

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