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使用javamail发送带附件的邮件

2007-03-23 22:59 656 查看

本文使用Orielly上传包实现

验证类：

package com.test.auth;

import javax.mail.Authenticator;

import javax.mail.PasswordAuthentication;

public class Authentic extends Authenticator ...{

protected PasswordAuthentication getPasswordAuthentication() ...{

String username = "daryl715"; //大多数是你邮件@前面的部分

String pwd = "smallfish1009";

return new PasswordAuthentication(username, pwd);

}

发送页面：

<%...@ page language="java" contentType="text/html; charset=GB18030"

pageEncoding="GB18030"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>Insert title here</title>

</head>

<body>

发信人:<input type="text" name="from"/><br>

收件人:<input type="text" name="recieve"/><br>

主题: <input type="text" name="subject"/><br>

内容:<textarea name="content" cols=40 rows=5></textarea><br>

附件:<input type="file" name="filename"/>

</form>

</body>

</html>

发送代码：

<%...@ page import="javax.mail.*" %>

<%...@ page import="javax.mail.internet.*" %>

<%...@ page import="javax.activation.*" %>

<%...@ page import="java.util.*,java.io.*" %>

<%...@ page import="com.test.auth.*,com.oreilly.servlet.MultipartRequest" %>

<%...@ page contentType="text/html;charset=GB2312" %>

<html>

<head>

<title>CH17 - JavaMail.jsp</title>

</head>

<body>

<h2>利用JavaMail来传送电子邮件 </h2>

<%...

InternetAddress[] address = null;

request.setCharacterEncoding("GB2312");

String saveDirectory="/upload"; //设置上传目录

String contextPath=request.getSession().getServletContext().getRealPath(saveDirectory);

File a=new File(contextPath);

if(!a.isDirectory()){

a.mkdir();

}

int maxPostSize=5*1024*1024; //设定大小为5M

String enCoding="gb2312";

int count=0;

MultipartRequest multi=new MultipartRequest(request,contextPath,maxPostSize,enCoding);

String mailserver = "202.108.5.142";

String From = multi.getParameter("from");

String to = multi.getParameter("recieve");

String Subject = multi.getParameter("subject");

String messageText = multi.getParameter("content");

String filename=multi.getFilesystemName("filename");

boolean sessionDebug = false;

try {

// 设定所要用的Mail 服务器和所使用的传输协议

java.util.Properties props = System.getProperties();

props.put("mail.host",mailserver);

props.put("mail.transport.protocol","smtp");

props.put("mail.smtp.auth", "true");

// 产生新的Session 服务

Authentic auth = new Authentic();

Session mailSession = Session.getDefaultInstance(props, auth);

mailSession.setDebug(sessionDebug);

Message msg = new MimeMessage(mailSession);

// 设定传送邮件的发信人

System.out.println(From);

msg.setFrom(new InternetAddress(From));

// 设定传送邮件至收信人的信箱

address = InternetAddress.parse(to,false);

msg.setRecipients(Message.RecipientType.TO, address);

// 设定信中的主题

msg.setSubject(Subject);

// 设定送信的时间

msg.setSentDate(new Date());

System.out.println(filename);

if(filename!=null){//如果有附件，就暂存邮件，处理附件后统一发送

File file=new File(filename);

MimeBodyPart mbp1=new MimeBodyPart();

mbp1.setContent(messageText,"text/html;charset=gb2312");

FileDataSource fds=new FileDataSource(filename);

MimeBodyPart mbp2=new MimeBodyPart();

mbp2.setDataHandler(new DataHandler(fds));

mbp2.setFileName(MimeUtility.encodeText(fds.getName(),"gb2312","B"));

Multipart mp=new MimeMultipart();

mp.addBodyPart(mbp1);

mp.addBodyPart(mbp2);

msg.setContent(mp);

}

else{

msg.setContent(messageText,"text/html;charset=gb2312");

}

// 设定传送信的MIME Type

// 送信

Transport.send(msg);

out.println("邮件已顺利传送");

}

catch (MessagingException mex) {

mex.printStackTrace();

}

</body>

</html>

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