关于用commons-fileupload时出现的问题

[乡长]

我的环境为Myeclipse
已经把commons-fileupload.jar导入了该工程
下面为部分代码：

package upServlet;

import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.io.*;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.*;
import org.apache.commons.fileupload.disk.*;
import org.apache.commons.fileupload.servlet.*;


public class Upload extends HttpServlet
{
.....
public void destroy()
{
super.destroy();
}

public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
this.doPost(request, response);

}

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
request.setCharacterEncoding("gb2312");
try
{
[color=#00FF00]DiskFileItemFactory factory = new DiskFileItemFactory();

.......
.......

}

public void init() throws ServletException {

}

}[/color]

在IE中运行后出现以下错误：
java.lang.NoClassDefFoundError: org/apache/commons/fileupload/disk/DiskFileItemFactory
upServlet.Upload.doPost(Upload.java:44)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

不知道什么问题，谢过！

[Shine_Panda]

把你的工程重新部署到 Tomcat 一下应该可以解决问题.
好象Eclipse在 通过buildpath 导包后是有这个问题.

要不你把哪个包 考到 lib 目录下刷新一下工程也行.

[乡长]

哇，楼上真是一语惊醒梦中人啊

我一看，立即明白是怎么回事了

试了下，果然如此，呵呵

3Q