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javamail通过pop3收信，附件下载，我的办法（代码！） |
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.*;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2002</p>
* <p>Company: Socix</p>
* @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);
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