Stack Overflow上的其他问题已经解决了这个问题，但是所提供的答案都没有帮助我解决这个问题。
我正在尝试使用Apache HTTP Commons从applet上传一个介于10 kB到16 MB之间的文件。在我当地的环境中一切正常。
我只在我的生产服务器（Tomcat 6.0，https://www.dailyrazor.com/）上收到以下异常，无论文件大小如何：
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 11:26:28,803 [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 11:26:28,803 [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()
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/temp
2012-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 11:27:47,462 [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 11:27:47,463 [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.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()
除了这个上传问题，我的applet工作正常。
这是我的生产服务器的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（下降2.01 Mbps，上行0.42 Mbps），所以这个例外让我感到困惑。我已经将connectionTimeOut设置为3000000，但我仍然有例外。我应该将connectionTimeOut设置为-1以使其无限制吗？
我上传的目录上的文件权限设置为777，而我正在使用JDK版本7在浏览器中运行applet。
Java控制台输出：
Java Plug-in 10.7.2.10
Using 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它：
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)
我已经知道这可能是我的ISP的一个问题。我只是想知道是不是iSP的问题为什么我可以顺利使用像temviewer和Skype这样的软件？
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 text
if (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();
}
当我按下applet的GUI上的上传按钮时，它调用上面的方法，同时GUI冻结。 10到50秒后，服务器抛出FileUploadException。 servlet通知applet有关异常的信息，但是在通知用户异常之前，applet会挂起四到五分钟。
如果服务器端出现问题，为什么会有这么多延迟？
答案 0 :(得分：28)
这帮助了我很多：http://blog.somepixels.net/en/502-proxy-error-uploading-from-apache-mod_proxy-to-tomcat-7/
基本上在我的server.xml中我将其设置为：
<Connector port="8080" protocol="HTTP/1.1" URIEncoding="UTF-8"
connectionUploadTimeout="36000000" disableUploadTimeout="false"
connectionTimeout="60000" redirectPort="8443" />
答案 1 :(得分：5)
从问题中运行的配置（或者您已经尝试过的）不清楚，但问题几乎是根据定义在上传过程中超出套接字超时。
引发错误，因为在达到相关超时之前文件未完全接收。这与在测试中工作的东西（在本地网络上）是一致的，但在运行速度较慢的互联网上时则不一致（特别是在上传速度方面）。
请查看server.xml相关<Connector>定义。您会对connectionTimeout或connectionUploadTimeout属性（后者，如果disableUploadTimeout设置为true）感兴趣。
如果没有更多邪恶问题的证据，我希望您可以通过增加连接超时来解决此问题。