这对我帮助很大：http : //blog.somepixels.net/en/502-proxy-error-uploading-from-apache-mod_proxy-to-tomcat-7/
基本上在server.xml中，将其设置为：
<Connector port='8080' protocol='HTTP/1.1' URIEncoding='UTF-8' connectionUploadTimeout='36000000' disableuploadTimeout='false' connectionTimeout='60000' redirectPort='8443' />解决方法
关于Stack Overflow的其他问题已经解决了这个问题，但是提供的答案都没有帮助我解决该问题。
我正在尝试使用Apache HTTP Commons从applet上传10 kB至16 MB之间的文件。在我的本地环境中一切正常。
无论文件大小如何，我仅在生产服务器（Tomcat6.0，https：//www.dailyrazor.com/）上收到以下异常：
org.apache.commons.fileupload.FileUploadException: Processing of multipart/form-data request failed. Read timed out at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:384) at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:116) at com.actura.helper.UploadHelper.processUpload(UploadHelper.java:92) at com.actura.voice.upload.FileUploadServlet.process(FileUploadServlet.java:85) at com.actura.voice.upload.FileUploadServlet.doPost(FileUploadServlet.java:75) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:662)
这是Commons IO的调试日志：
2012-Sep-18 11:26:28,446 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory constructor (listener) 2012-Sep-18 11:26:28,794 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory createItem 2012-Sep-18 11:26:28,800 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside MonitoredDiskFileItem constructor 2012-Sep-18 11:26:28,800 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside getOutputStream() 2012-Sep-18 11:26:28,802 [TP-Processor5] com.actura.voice.upload.MonitoredOutputStream DEBUG inside MonitoredOutputStream constructor 2012-Sep-18 11:26:28,803 [TP-Processor5] com.actura.voice.upload.MonitoredOutputStream DEBUG leaving MonitoredOutputStream contructor 2012-Sep-18 11:26:28,803 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG leaving getOutputStream() 2012-Sep-18 11:26:28,803 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory createItem 2012-Sep-18 11:26:28,803 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside MonitoredDiskFileItem constructor 2012-Sep-18 11:26:28,803 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside getOutputStream() 2012-Sep-18 11:26:28,803 [TP-Processor5] com.actura.voice.upload.MonitoredOutputStream DEBUG inside MonitoredOutputStream constructor 2012-Sep-18 11:26:28,804 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG leaving getOutputStream() 2012-Sep-18 11:26:28,804 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory createItem 2012-Sep-18 11:26:28,804 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside MonitoredDiskFileItem constructor 2012-Sep-18 11:26:28,804 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside getOutputStream() 2012-Sep-18 11:26:28,804 [TP-Processor5] com.actura.voice.upload.MonitoredOutputStream DEBUG inside MonitoredOutputStream constructor 2012-Sep-18 11:26:28,804 [TP-Processor5] com.actura.voice.upload.MonitoredOutputStream DEBUG leaving MonitoredOutputStream contructor 2012-Sep-18 11:26:28,804 [TP-Processor5] com.actura.voice.upload.MonitoredDiskFileItem DEBUG leaving getOutputStream() processing folder... /home/dixieh83/public_html/ActuraVoiceRecorderDemo/temp2012-Sep-18 11:27:47,062 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory constructor (listener) 2012-Sep-18 11:27:47,461 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory createItem 2012-Sep-18 11:27:47,461 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside MonitoredDiskFileItem constructor 2012-Sep-18 11:27:47,462 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside getOutputStream() 2012-Sep-18 11:27:47,462 [TP-Processor4] com.actura.voice.upload.MonitoredOutputStream DEBUG inside MonitoredOutputStream constructor 2012-Sep-18 11:27:47,462 [TP-Processor4] com.actura.voice.upload.MonitoredOutputStream DEBUG leaving MonitoredOutputStream contructor 2012-Sep-18 11:27:47,462 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG leaving getOutputStream() 2012-Sep-18 11:27:47,462 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory createItem 2012-Sep-18 11:27:47,462 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside MonitoredDiskFileItem constructor 2012-Sep-18 11:27:47,463 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItemFactory DEBUG inside MonitoredDiskFileItemFactory createItem 2012-Sep-18 11:27:47,463 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside MonitoredDiskFileItem constructor 2012-Sep-18 11:27:47,463 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG inside getOutputStream() 2012-Sep-18 11:27:47,463 [TP-Processor4] com.actura.voice.upload.MonitoredOutputStream DEBUG inside MonitoredOutputStream constructor 2012-Sep-18 11:27:47,463 [TP-Processor4] com.actura.voice.upload.MonitoredOutputStream DEBUG leaving MonitoredOutputStream contructor 2012-Sep-18 11:27:47,463 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG leaving getOutputStream() 2012-Sep-18 11:27:47,463 [TP-Processor4] com.actura.voice.upload.MonitoredDiskFileItem DEBUG leaving getOutputStream()
除了此上传问题外，我的applet正常运行。
这是生产服务器server.xml文件中描述的服务器配置：
<!-- Define an AJP 1.3 Connector on port 8009 --> <Connector address='127.0.0.1' port='9609' enableLookups='false' protocol='AJP/1.3' connectionTimeout='30000' maxThreads='50' minSpareThreads='1' maxSpareThreads='3' disableUploadTimeout='true' />
我的互联网连接速度很好（降低了2.01 Mbps，提高了0.42Mbps），所以这个异常让我感到困惑。我已经设置connectionTimeOut为3000000，但是仍然有例外。我应该设置connectionTimeOut为-1以使其不受限制吗？
文件许可权设置为777我上载目录，并且我使用JDK版本7在浏览器中运行小程序。
Java控制台输出：
Java Plug-in 10.7.2.10Using JRE version 1.7.0_07-b10 Java HotSpot(TM) Client VM
当上传失败时，我会在控制台中看到：
java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.write(Unknown Source) at org.apache.http.impl.io.AbstractSessionOutputBuffer.write(AbstractSessionOutputBuffer.java:169) at org.apache.http.impl.io.ContentLengthOutputStream.write(ContentLengthOutputStream.java:119) at org.apache.http.entity.mime.content.InputStreamBody.writeTo(InputStreamBody.java:70) at org.apache.http.entity.mime.HttpMultipart.doWriteTo(HttpMultipart.java:206) at org.apache.http.entity.mime.HttpMultipart.writeTo(HttpMultipart.java:224) at org.apache.http.entity.mime.MultipartEntity.writeTo(MultipartEntity.java:183) at org.apache.http.entity.HttpEntityWrapper.writeTo(HttpEntityWrapper.java:98) at org.apache.http.impl.client.EntityEnclosingRequestWrapper$EntityWrapper.writeTo(EntityEnclosingRequestWrapper.java:108) at org.apache.http.impl.entity.EntitySerializer.serialize(EntitySerializer.java:122) at org.apache.http.impl.AbstractHttpClientConnection.sendRequestEntity(AbstractHttpClientConnection.java:271) at org.apache.http.impl.conn.ManagedClientConnectionImpl.sendRequestEntity(ManagedClientConnectionImpl.java:197) at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:257) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125) at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:712) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:517) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1066) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1044) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:1035) at com.actura.app.util.ApplicationUtil.uploadUsingApache(ApplicationUtil.java:143) at com.actura.app.util.ApplicationUtil.saveWaveToServer(ApplicationUtil.java:90) at com.actura.app.capture.RecorderUI.saveButtonActionPerformed(RecorderUI.java:1856) at com.actura.app.capture.RecorderUI.access$17(RecorderUI.java:1824) at com.actura.app.capture.RecorderUI$7.actionPerformed(RecorderUI.java:1325) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$200(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source)
我知道这可能是我的ISP的问题。 我只是想知道这是否是iSP的问题，为什么我可以顺利使用temviewer和Skype等软件？
以下是执行上传的代码：
public static String uploadUsingApache(URL url,List<File> list,String userId,String accountId,String waveDuration) throws Exception {// The execution:DefaultHttpClient httpclient = new DefaultHttpClient();HttpPost method = new HttpPost(url.toString());MultipartEntity entity = new MultipartEntity();entity.addPart('userId',new StringBody(userId,Charset.forName('UTF-8')));entity.addPart(IVR_ACCOUNT_KEY,new StringBody(accountId,Charset.forName('UTF-8')));entity.addPart(IVR_MP3LEN_KEY,new StringBody(waveDuration,Charset.forName('UTF-8')));// FileBody fileBody = new FileBody(list.get(0));// entity.addPart('file',fileBody);for (File f : list) { byte[] imageBytes = fileToByteArray(f); entity.addPart('attachment_field',new InputStreamKnownSizeBody( new ByteArrayInputStream(imageBytes),imageBytes.length,'audio/wav',f.getName())); method.setEntity(entity);}ResponseHandler<String> responseHandler = new BasicResponseHandler();// HttpResponse response = httpclient.execute(method,responseHandler);String responseText = httpclient.execute(method,responseHandler);// error textif (responseText.contains('<exception>')) { responseText = responseText.replace('<exception>',''); responseText = responseText.replace('</exception>',''); throw new Exception(responseText);}// System.out.println(' Status ' +response.getStatusLine());List<String> deleteList = Arrays.asList(responseText.split(','));StringBuffer sb = new StringBuffer();int cnt = 1;for (File f : list) { if (deleteList.contains(f.getName())) {sb.append(f.getName() + (cnt == deleteList.size() ? '' : ','));f.delete();cnt++; }}if (deleteList.size() > 1) { sb.append(' are ');} else if (deleteList.size() == 1) { sb.append(' is ');} else {}sb.append(' successfully saved.');return sb.toString(); }
当我按小程序的GUI上的上载按钮时，它将调用上述方法，同时GUI冻结。10至50秒后，服务器将抛出FileUploadException。Servlet通知小程序有关异常的信息，但是小程序在通知用户异常之前挂起了四到五分钟。
如果服务器端出现问题，为什么会有这么多延迟？
