我有一个属于 Web 应用程序的表单，其中包含一个“文件”字段来上传 pdf 文件。（spring 3 环境，多部分文件上传）上传文件在测试环境（所有浏览器）中工作正常，并且仅适用于生产中的 Firefox环境（文件上传导致连接重置异常，尤其是低互联网连接客户端浏览器）
按下提交按钮几秒钟后抛出以下异常：（浏览器是在 windows 环境中运行的 IE/Chrome，但不是 Firefox）
org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. null
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:162)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:138)
at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:887)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:750)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
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.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:162)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:110)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at fr.ifma.utils.FiltreUTF8.doFilter(FiltreUTF8.java:21)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
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:293)
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:776)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. null
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:371)
at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:155)
... 38 more
Caused by: java.io.IOException
at org.apache.jk.common.JkInputStream.receive(JkInputStream.java:205)
at org.apache.jk.common.JkInputStream.refillReadBuffer(JkInputStream.java:265)
at org.apache.jk.common.JkInputStream.doRead(JkInputStream.java:183)
at org.apache.coyote.Request.doRead(Request.java:427)
at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:304)
at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:419)
at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:327)
at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:193)
at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:976)
at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:886)
at java.io.InputStream.read(InputStream.java:82)
at org.apache.commons.fileupload.util.Streams.copy(Streams.java:96)
at org.apache.commons.fileupload.util.Streams.copy(Streams.java:66)
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:366)
... 40 more
24 oct. 2012 10:40:38 org.apache.jk.core.MsgContext action
ATTENTION: Unable to send headers
java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at org.apache.jk.common.ChannelSocket.send(ChannelSocket.java:539)
at org.apache.jk.common.JkInputStream.appendHead(JkInputStream.java:324)
at org.apache.jk.core.MsgContext.action(MsgContext.java:266)
at org.apache.coyote.Response.action(Response.java:183)
at org.apache.coyote.Response.sendHeaders(Response.java:379)
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:314)
at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:274)
at org.apache.catalina.connector.CoyoteWriter.close(CoyoteWriter.java:108)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:394)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
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.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:162)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:110)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at fr.ifma.utils.FiltreUTF8.doFilter(FiltreUTF8.java:21)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
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:293)
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:776)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:662)
24 oct. 2012 10:40:38 org.apache.jk.common.ChannelSocket processConnection
这是网络应用程序代码和配置：
spring 多部分解析器配置：
控制器 ：
/**
* this controller handles file upload and save files to dao.
* @author Christophe.Dumonet@ifma.fr
* @param request
* @param documentFormBean
* @param result
* @param file
* @return
*/
@RequestMapping(value = "/save", method = RequestMethod.POST)
public ModelAndView save(HttpServletRequest request,
@Valid DocumentFormBean documentFormBean,BindingResult result,
@RequestParam("file") MultipartFile file) {
ResourceBundle bundle = ResourceBundle.getBundle("messages", request.getLocale());
Map<String,Object> map = new HashMap<String, Object>();
map.put("documentFormBean", new DocumentFormBean());
map.put("documentList", documentDao.findAllForaDepot(Long.parseLong((String) request.getParameter("depot"))));
map.put("depot", depotDao.find(Long.parseLong((String) request.getParameter("depot"))));
//Handle too many documents attached : how many documents attached to this depot now ? throw an error to UI.
@SuppressWarnings("rawtypes")
List documentAttached = documentDao.findAllForaDepot(Long.parseLong((String) request.getParameter("depot")));
if (documentAttached != null && documentAttached.size() >= Integer.parseInt(SpringPropertiesUtil.getProperty("Depot.maximum.file.number.authorized"))){
map.put("MaximumFileNumberReached", bundle.getString("Depot.maximum.file.number.errormessage"));
return new ModelAndView("ajoutDocumentsRapport", map);
}
//handle file empty or not pdf
if (result.hasErrors() || (file.isEmpty()) || !file.getContentType().contains("pdf")) {
map.put("errors", result);
if (file.isEmpty()) map.put("ErrorMessageFileEmpty", bundle.getString("view.addrapport.error.fileisempty"));
if (!file.getContentType().contains("pdf")) map.put("ErrorMessageFileTypeNotPDF", bundle.getString("view.addrapport.error.filetype.onlypdf"));
return new ModelAndView("ajoutDocumentsRapport", map);
} else{
try {
//Blob blob = Hibernate.createBlob(file.getInputStream());
//cause Hibernate.createBlob is deprecated, use a LobHelper interface instead.
org.hibernate.Session se = (org.hibernate.Session)depotDao.getHibernateTemplate().getSessionFactory().getCurrentSession();
LobHelper lh = se.getLobHelper();
Blob blob = lh.createBlob(file.getBytes());
Document newDocument = new Document();
newDocument.setDescription(documentFormBean.getDescription());
newDocument.setContentType(file.getContentType());
newDocument.setFilename(file.getOriginalFilename());
newDocument.setContent(blob);
newDocument.setDepot(depotDao.find(Long.parseLong((String) request.getParameter("depot"))));
documentDao.save(newDocument);
map.put("documentList", documentDao.findAllForaDepot(Long.parseLong((String) request.getParameter("depot"))));
} catch (IOException e) {
e.printStackTrace();
}
return new ModelAndView("ajoutDocumentsRapport",map);
}
}
Tomcat 6 AJP 连接器连接器配置：（原始配置为：）
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443"/>
（也试过这个：）
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443"
connectionTimeout="120000" maxThreads="1000"
minSpareThreads="50" maxSpareThreads="100" enableLookups="false"
acceptCount="150" address="127.0.0.1"
useBodyEncodingForURI="true"
compression="on"
compressionMinSize="1024"
compressableMimeType="text/html,text/xml"
connectionUploadTimeout="3600000"
disableUploadTimeout="true"
/>
Apache 2 虚拟主机配置：
<VirtualHost *:80>
ServerAdmin webmaster@localhost
DocumentRoot /var/www
Timeout 3600
ProxyPass / ajp://localhost:8009/
ProxyPassReverse / ajp://localhost:8009/
ProxyTimeout 3600
<Proxy *>
Order deny,allow
Allow from all
</Proxy>
<Directory /var/www/>
Options -Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
</Directory>
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
ErrorLog ${APACHE_LOG_DIR}/error.log
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
html格式：
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<%@ taglib uri="http://displaytag.sf.net" prefix="display"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ page isELIgnored="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
<base
href="<%=request.getScheme() + "://" + request.getServerName()
+ ":" + request.getServerPort() + request.getContextPath()
+ "/"%>" />
<link href="css/style1.css" rel="stylesheet" type="text/css" />
<link href="css/style.css" rel="stylesheet" type="text/css" />
<link type="text/css" rel="stylesheet" href="css/solid.css" />
<link type="text/css" rel="stylesheet" href="css/errors.css" />
<script type="text/javascript" src="script/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="script/jquery.validate.js"></script>
</head>
<body>
<form:form id="myform" method="post" action="save.html" commandName="documentFormBean" enctype="multipart/form-data">
<c:set var="depot" value="${depot.id}" scope="session" />
<input type="hidden" name="depot" value="${depot.id}" />
<table id="gradient-style">
<tr>
<th colspan="8"><h3>Fichiers joints au rapport</h3>
</th>
</tr>
<tr><td>->Ajouter un document</td>
<td><form:textarea path="description" />
<br/>
<span style="color:red">*</span>description du fichier
<form:errors path="description" cssClass="error" />
</td>
<td colspan="3">
<input type="file" name="file" />
<br/><span class="error" >${ErrorMessageFileEmpty}</span>
<br/><span class="error" >${ErrorMessageFileTypeNotPDF}</span>
<br/><span class="error" >${MaximumFileNumberReached}</span>
</td>
<td colspan="3"><input type="submit" id="upload" value="Ajouter le document" /></td>
</tr>
<tr > <td colspan="8"> <div style="color:red">Attention : le document doit comporter obligatoirement une description et un fichier PDF (taille maximum : 20Mo) </div></td></tr>
<tr > <td colspan="8"> <div >Note : Si vous le déposant n'est pas autorisé à publier son rapport pour des raisons de confidentialité, déposer simplement la page de garde en pdf du rapport </div></td></tr>
</table>
<span class="error">${msg}</span>
<c:if test="${!empty documentList}">
Liste des documents associés au rapport :
<table id="gradient-style">
<tr>
<th>Description</th>
<th>Nom du fichier</th>
<th>type de contenu</th>
<th>Télécharger</th>
<th>Supprimer</th>
</tr>
<c:forEach items="${documentList}" var="document">
<tr>
<td width="250px">${document.description}</td>
<td width="250px">${document.filename}</td>
<td width="250px">${document.contentType}</td>
<td width="20px"><a
href="${pageContext.request.contextPath}/download/${document.id}.html"
target="_blank"><img
src="${pageContext.request.contextPath}/images/save-icon.jpg"
width="20px" height="20px"
border="0" title="Download this document" />Télécharger</a>
</td>
<td width="20px"><a
href="${pageContext.request.contextPath}/remove/document/${document.id}/depot/${depot.id}.html"
onclick="return confirm('Etes vous certain de vouloir supprimer ce fichier ?')"><img
width="20px" height="20px" src="${pageContext.request.contextPath}/images/delete-icon.jpg"
border="0" title="Delete this document" />Supprimer</a></td>
</tr>
</c:forEach>
</table>
</c:if>
<script>
function disp_warning()
{
alert("Vous devez ajouter au moins un document SVP !")
}
</script>
<table id="gradient-style">
<tr>
<th colspan="6">
<c:choose>
<c:when test="${fn:length(documentList) gt 0}">
<button type="button" onclick="location.href='endAdd.html'"><spring:message code="application.add.end.title"/> </button>
</c:when>
<c:otherwise>
<button type="button" onclick="disp_warning()"><spring:message code="application.add.end.title"/></button>
</c:otherwise>
</c:choose>
</th>
</tr>
</table>
</form:form>
</body>
</html>
此异常的可能原因是什么？
文件上传时连接重置通常意味着客户端中止发送......那又怎样？任何帮助将不胜感激。克里斯托夫 D。