org.apache.catalina.connector.ClientAbortException: java.io.IOException

Question

问题描述 :
1. 仅当静态资源请求时触发
2. 仅是火狐浏览器触发
3. 仅当Tomcat7以上触发
4. 有个类似的项目不触发此异常

其中触发错误的请求:

/livestock/res/assets/ico/apple-touch-icon-152x152.png

/livestock/res/assets/vendor/font-awesome/fonts/fontawesome-webfont.woff2

神奇的bug

    org.apache.catalina.connector.ClientAbortException: java.io.IOException: APR error: -730053
    at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:393)
    at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:426)
    at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:339)
    at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:418)
    at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:406)
    at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:97)
    at org.springframework.util.StreamUtils.copy(StreamUtils.java:138)
    at org.springframework.http.converter.ResourceHttpMessageConverter.writeContent(ResourceHttpMessageConverter.java:110)
    at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:102)
    at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:45)
    java.io.IOException: APR error: -730053
    at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:226)
    at org.springframework.web.servlet.resource.ResourceHttpRequestHandler.handleRequest(ResourceHttpRequestHandler.java:480)
    at org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:51)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2463)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2452)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)

Answer 1

姑且原因是 Spring 的异常未配置拦截时, 静态资源抛出的异常将不会显示打印
当配置了如下内容时

@Component
public class Error500 implements HandlerExceptionResolver {
    private Logger log = LoggerFactory.getLogger(getClass());

    @Override
    public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) {
        ModelAndView mav = new ModelAndView();
        if(e.getClass().getName().equals("org.apache.catalina.connector.ClientAbortException")){
            log.debug("304缓存错误,不做处理!");
            mav.setStatus(HttpStatus.NOT_MODIFIED);
            return mav;
        }
        e.printStackTrace();
        mav.setViewName("redirect:/error-500");
        return mav;
    }
}

这个中断异常将会被捕捉到, 而此处我做了忽略处理

结语

问题由 浏览器 + 服务器 + 框架共通产生, 这只是一个异常, 浏览器请求不到时会尝试重新请求
正如同 页面加载一半时刷新一样
如果不想看见,就做如上拦截处理吧