Java开发网 - 用commons.fileupload上传文件，出现错误，各位帮帮忙，急~（请看内容）

Topic: 用commons.fileupload上传文件，出现错误，各位帮帮忙，急~（请看内容）

1.用commons.fileupload上传文件，出现错误，各位帮帮忙，急~（请看内容）

Posted by: miaomiaoga
Posted on: 2006-03-14 02:51

错误信息说错在16行，16行就是：List fileItems = fu.parseRequest(request);
是request出现什么问题的了？不明白。

我用的是TOMCAT，已经把commons-fileupload-1.1.jar放到Tomcat5.5\common\lib里和项目里的WEB-INF\lib目录下了，还有什么没有做的吗？

整个运行环境应该是正常的，因为我有另外一个页面读取mysql的资料都正常的，估计不是配置的问题，是不是我还缺些什么东西呢？

请各位指示，谢谢。：）

错误信息如下：

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Exception in JSP: /up61.jsp:16

13: // 儲存的目錄
14: //fu.setRepositoryPath(application.getRealPath("/") + "temp/");
15: fu.setRepositoryPath("c:\\TEMP");
16: List fileItems = fu.parseRequest(request);
17:
18: Iterator itr = fileItems.iterator();
19: while(itr.hasNext()) {

Stacktrace:
  org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

javax.servlet.ServletException: org/apache/commons/io/output/DeferredFileOutputStream
  org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:858)
  org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
  org.apache.jsp.up61_jsp._jspService(org.apache.jsp.up61_jsp:79)
  org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
  org.apache.commons.fileupload.DefaultFileItemFactory.createItem(DefaultFileItemFactory.java:102)
  org.apache.commons.fileupload.FileUploadBase.createItem(FileUploadBase.java:500)
  org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:367)
  org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:268)
  org.apache.jsp.up61_jsp._jspService(org.apache.jsp.up61_jsp:62)
  org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.15 logs.

--------------------------------------------------------------------------------

Apache Tomcat/5.5.15

源代码如下：
upload.html:

<form action="save.jsp" enctype="multipart/form-data" method="POST">
  input your name: <input type="text" name="name"> <br>
  select the file: <input type="file" name="file"> <br>
  <input type="submit" value="submit">
</form>

save.jsp:

<%@ page import="java.util.List"%>
<%@ page import="java.util.Iterator"%>
<%@ page import="java.io.File"%>
<%@ page import="org.apache.commons.fileupload.DiskFileUpload"%>
<%@ page import="org.apache.commons.fileupload.FileItem"%>
<%@page contentType="text/html;charset=GBK"%>
<%
DiskFileUpload fu = new DiskFileUpload();
// 使用的記憶體容量，超過先寫入暫存檔
fu.setSizeThreshold(4096);
// 最大上傳檔案容量
fu.setSizeMax(1000000);
// 儲存的目錄
//fu.setRepositoryPath(application.getRealPath("/") + "temp/");
fu.setRepositoryPath("c:\\TEMP");
List fileItems = fu.parseRequest(request); //****这是第16行****//

Iterator itr = fileItems.iterator();
while(itr.hasNext()) {
FileItem fi = (FileItem)itr.next();

out.println("\nNAME: "+fi.getName());
out.println("SIZE: "+fi.getSize());
File fNew= new File(application.getRealPath("/"), fi.getName());
fi.write(fNew);
}
%>

（缩略图，点击图片链接看原图）

2.Re:用commons.fileupload上传文件，出现错误，各位帮帮忙，急~（请看内容） [Re: miaomiaoga]	Copy to clipboard
Posted by: zcjl Posted on: 2006-03-14 09:00 java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream 我想不用再翻译了吧？检查一下commons-io.jar这个包是否存在，并正确配置到classpath中

3.Re:用commons.fileupload上传文件，出现错误，各位帮帮忙，急~（请看内容） [Re: miaomiaoga]	Copy to clipboard
Posted by: miaomiaoga Posted on: 2006-03-18 21:37 其实还是不懂.但我把文件COPY到TOMCAT的根目录去就可以正常运行了.估计是配置或者是其它的问题.刚开始用JSP和TOMCAT.~~没办法...再努力学习才行...