【踩坑日志】Uncaught Error: Incompatibile SockJS! Main site uses: "1.4.0", the iframe: "1.0.0". at s (VM342

前端出现

```text
Uncaught Error: Incompatibile SockJS! Main site uses: "1.4.0", the iframe: "1.0.0".     at s (VM342 
```

后端也有报错

```java
java.io.IOException: 断开的管道
        at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
        at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
        at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
        at sun.nio.ch.IOUtil.write(IOUtil.java:65)
        at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:469)
        at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:134)
        at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)
        at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157)
        at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1259)
        at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:670)
        at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:607)
        at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:597)
        at org.apache.coyote.http11.Http11OutputBuffer.flushBuffer(Http11OutputBuffer.java:581)
        at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:272)
        at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1506)
        at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:279)
        at org.apache.coyote.Response.action(Response.java:174)
        at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:317)
        at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:284)
        at org.apache.catalina.connector.Response.flushBuffer(Response.java:543)
        at org.apache.catalina.connector.ResponseFacade.flushBuffer(ResponseFacade.java:312)
        at org.springframework.http.server.ServletServerHttpResponse.flush(ServletServerHttpResponse.java:96)
        at org.springframework.web.socket.sockjs.transport.session.AbstractHttpSockJsSession.writeFrameInternal(AbstractHttpSockJsSession.java:350)
        at org.springframework.web.socket.sockjs.transport.session.AbstractSockJsSession.writeFrame(AbstractSockJsSession.java:318)
        at org.springframework.web.socket.sockjs.transport.session.AbstractSockJsSession.sendHeartbeat(AbstractSockJsSession.java:251)
        at org.springframework.web.socket.sockjs.transport.session.AbstractSockJsSession$HeartbeatTask.run(AbstractSockJsSession.java:453)
        at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
1
```

报错原因是连接`WebSocket` ，在本地测试没问题，放到内网环境就报错。

原本以为是代码问题，找了不少教程。最后发现一个方案可行

修改内网服务器网卡ifcfg-eth配置，把dns的配置给注释即可

</div>

修改` /etc/sysconfig/network-scripts/ifcfg-ens*`后记得`systemctl restart network`。

最后修改：2023 年 10 月 30 日