javamail通过pop3收信，附件下载，我的办法（代码！）

javamail通过pop3收信，附件下载，我的办法（代码！）

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--- javamail通过pop3收信，附件下载，我的办法（代码！） (http://www.webasp.net/article/8/7057.htm)

-- 作者：未知
-- 发布日期： 2003-07-26

从附件名连接到这个servlet!

DownloadServlet.java

package MailServlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.*;
/**
* Title: 
* Description: 
* Copyright: Copyright (c) 2002
* Company: Socix
* @author simon
* @version 1.0
*/

public class DownloadServlet extends HttpServlet
{
 public void service(HttpServletRequest request, HttpServletResponse response)
 throws IOException, ServletException
 {
 HttpSession session = request.getSession();
 String contentType = request.getParameter("contenttype"); //附件的ContentType
 int count = Integer.parseInt(request.getParameter("count")); //第几个BodyPart
 Object body = session.getAttribute("body"); //邮件的MimeMultipart
 if(body != null)
 {
System.out.println("download Start!");
 try
 {
 MimeMultipart mp = (MimeMultipart)body;
 int i = mp.getCount();
 BodyPart part = mp.getBodyPart(count);
 contentType = part.getContentType();
 String fileName = part.getFileName();
 response.setContentType(contentType);
 response.setHeader("Content-Disposition","attachment; filename=" + fileName);
System.out.println("download Start!" + part.getSize());
 InputStream is = part.getInputStream();
 ServletOutputStream out = response.getOutputStream();
 BufferedInputStream buf = new BufferedInputStream(is);
 byte[] data = new byte[2048];
 int readed = buf.read(data);
 while (readed != -1)
 {
 out.write(data,0,readed);
 readed = buf.read(data);
 }
 out.flush();
 out.close();
 buf.close();
System.out.println("download Over !");
 }
 catch (Exception ex)
 {
 System.out.println("error : " + ex);
 }
 }
 }
}

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