java上传处理-Servlet 批量上传大文件
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新建类UploadServlet
Java代码
1.package org.action;
2.
3.import java.io.File;
4.import java.io.IOException;
5.import java.util.Iterator;
6.import java.util.List;
7.
8.import javax.servlet.ServletException;
9.import javax.servlet.http.HttpServlet;
10.import javax.servlet.http.HttpServletRequest;
11.import javax.servlet.http.HttpServletResponse;
12.
13.import mons.fileupload.FileItem;
14.import mons.fileupload.disk.DiskFileItemFactory;
15.import mons.fileupload.servlet.ServletFileUpload;
16.
17.@SuppressWarnings("unchecked")
18.public class UploadServlet extends HttpServlet{
19.
20.private static final long serialVersionUID = 1L ;
21.
22.@Override
23.protected void doGet(HttpServletRequest req, HttpServletResponse resp)
24.throws ServletException, IOException {
25. doPost(req, resp) ;
26. }
27.
28.@Override
29.protected void doPost(HttpServletRequest request, HttpServletResponse re
sponse )
30.throws ServletException, IOException {
31. DiskFileItemFactory factory = new DiskFileItemFactory() ;
32. factory.setSizeThreshold( 8192 ) ;
33. String tempPath = request.getSession().getServletContext().getRealPa
th( "/")
34. + "/upload" ;
35. File file = new File( tempPath ) ;
36.if(!file.isDirectory()){
Java代码
56. e.printStackTrace() ;
57. }
58. }
59.
60.}
在web.xml 中配置:
Html代码
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Html代码
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页面代码：
Java代码
1.<%@ page language="java"import="java.util.*" pageEncoding="ISO-8859-1"%>
2.<%
3.String path = request.getContextPath();
4.String basePath = request.getScheme()+"://"+request.getServerName()+":"+requ
est.getServerPort()+path+"/";
5.%>
6.
7.
Java代码
依赖的jar包，commons-fileupload-1.1.jar 和commons-io-1.1.jar