ClientAbortException ：客户端异常终止

ClientAbortException ：客户端异常终止

java.io.IOException: 你的主机中的软件中止了一个已建立的连接。

罪魁祸首：

<img src="check/code" alt="验证码图片" id="checkCodeImg">
<script>
    let img = document.getElementById("checkCodeImg");
    img.src = "check/code?" + new Date().getTime();
</script>

就这样，浏览器第一个请求刚发出，js覆盖了上一个请求， 等效于突然关闭浏览器。 服务器认为客户端异常退出(IO 流被中断) 而报错。

org.apache.catalina.connector.ClientAbortException: java.io.IOException: 你的主机中的软件中止了一个已建立的连接。
	at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:299)
	at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:262)
	at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118)
[http-nio-80-exec-7] DEBUG o.s.web.servlet.DispatcherServlet : Completed 200 OK
	at java.desktop/javax.imageio.stream.FileCacheImageOutputStream.close(FileCacheImageOutputStream.java:238)
	at java.desktop/javax.imageio.ImageIO.write(ImageIO.java:1596)
	at cn.yudie.blog.web.CheckController.checkCode(CheckController.java:33)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:835)
Caused by: java.io.IOException: 你的主机中的软件中止了一个已建立的连接。
	at java.base/sun.nio.ch.SocketDispatcher.write0(Native Method)
	at java.base/sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
	at java.base/sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:113)
	at java.base/sun.nio.ch.IOUtil.write(IOUtil.java:79)
	at java.base/sun.nio.ch.IOUtil.write(IOUtil.java:50)
	at java.base/sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:466)
	at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:140)
	at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)
	at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:152)
	at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1261)
	at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:793)
	at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:746)
	at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:736)
	at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:564)
	at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:157)
	at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:217)
	at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1150)
	at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:394)
	at org.apache.coyote.Response.action(Response.java:209)
	at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:295)
	... 44 more