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package com.test.servlet;

 

import java.io.File;  
import java.io.FileOutputStream;  
import java.io.IOException;  
import java.io.InputStream;  
import java.io.OutputStream;  
import java.util.List;  
 
import javax.servlet.ServletException;  
import javax.servlet.http.HttpServlet;  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
 
import org.apache.commons.fileupload.FileItem;  
import org.apache.commons.fileupload.disk.DiskFileItemFactory;  
import org.apache.commons.fileupload.servlet.ServletFileUpload;  
 

//


public class UploadServlet extends HttpServlet {


 
 
 public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  

         DiskFileItemFactory factory = new DiskFileItemFactory();
        
  String path= request.getRealPath("/upload");
  

  
  factory.setRepository(new File(path));
  
  factory.setSizeThreshold(1024*1024);
  
  ServletFileUpload upload=new ServletFileUpload(factory);
  
  try
  {
   List<FileItem> list = upload.parseRequest(request);
   for(FileItem item : list)
   {
    if(item.isFormField())
    {
     String name=item.getFieldName();
     
     String value=item.getString("gbk");
     
     System.out.println(name);
     
     request.setAttribute(name, value);
     
    }
    else
    {
     String name=item.getFieldName();
     
     String value=item.getName();
     
     int start=value.lastIndexOf("\\");
     
     String fileName=value.substring(start+1);
     
     request.setAttribute(name, fileName);
     
     OutputStream os=new FileOutputStream(new File(path,fileName));
     
     InputStream is =item.getInputStream();
     
     byte[] buffer=new byte[400];
     
     int length=0;
     
     while((length=is.read(buffer))>0){
      
      
      os.write(buffer, 0, length);
      
     }
     os.close();
     is.close();
    
        
    } 
    
   }
   
   
  }
 
  
  catch(Exception ex){
   
   ex.printStackTrace();
   
  }
  request.getRequestDispatcher("upload/result2.jsp").forward(request,response);
  
  

 }

}

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'result2.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
    username:${requestScope.username}<br>
    password:${requestScope.password}<br>
   
    file1:${requestScope.file1}<br>
   
    file2:${requestScope.file2}
     
   
   
  </body>
</html>


<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'upload2.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
  <form action="/struts2/UploadServlet"  method="post" enctype="multipart/form-data">
 
  username:<input type="text" name="username" ><br>
  password:<input type="password" name="password"><br>
 
  file1:<input type="file" name="file1">
  file2:<input type="file" name="file2">
 
  <input type="submit" value=" submit ">
 
 
 
  </form>
 
 
  </body>
</html>

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
 xmlns="http://java.sun.com/xml/ns/j2ee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
 
<!--   
 <filter>
 <filter-name>struts2</filter-name>
 <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
 </filter>
 
 <filter-mapping>
     <filter-name>struts2</filter-name>
     <url-pattern>/*</url-pattern>
    
 </filter-mapping>
 -->
 
 

  <servlet>
    <servlet-name>UploadServlet</servlet-name>
    <servlet-class>com.test.servlet.UploadServlet</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>UploadServlet</servlet-name>
    <url-pattern>/UploadServlet</url-pattern>
  </servlet-mapping>
</web-app>

posted on 2009-03-18 22:07 asiawang 阅读(426) 评论(1)  编辑  收藏

FeedBack:
# re: servlet实现文件上传操作
2012-05-12 13:36 | 萨达发撒旦法
萨达发撒旦法地方  回复  更多评论
  

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