handleattach.java

关于JAVA邮件开发的源代码...很有参考价值的源代码

package org.it315;
import java.io.IOException;
import java.io.InputStream;
import javax.mail.BodyPart;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class HandleAttach extends HttpServlet
{
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		response.setContentType("text/html");
		HttpSession session = request.getSession();
		ServletOutputStream out = response.getOutputStream();
		int msgnum = Integer.parseInt(request.getParameter("msgnum"));
		int bodynum = Integer.parseInt(request.getParameter("bodynum"));
		String filename = request.getParameter("filename");
		Folder folder = (Folder)session.getAttribute("folder");

		try
		{
			Message msg = folder.getMessage(msgnum);
			response.setHeader("Content-Disposition",
								"attachment;filename="+filename);
			Multipart multi = (Multipart)msg.getContent();
			BodyPart bodyPart = multi.getBodyPart(bodynum);
			InputStream is = bodyPart.getInputStream();
			int c = 0;
			while((c=is.read())!=-1)
			{
				out.write(c);		
			}
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}	
	}
}