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分类: Java

2008-05-07 15:01:23

发送带附件的邮件:

1.前端输入页面加入file

DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    
<head>
        
<title>JavaMail3.htmltitle>
    
head>

    
<body>

        
<form action="SEND3" method="post" enctype="multipart/form-data">
            From:
<input type="text" name="from"><br>
            TO:
<input type="text" name="to"><br>
            Subject:
<input type="text" name="subject"><br>
            type:
<select name=type size="1">
                    
<option value="text/plain">Textoption>
                    
<option value="text/html">Htmloption>
                 
select><br>
            file:
<input type="file" name="filename"><br>
            Context:
<textarea rows="4" cols="40" name="context">textarea><br>
            
<input type="submit" value="send">
        
form>
    
body>
html>

2.编写servlet : SEND3.java

 

package com.servlet;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.oreilly.servlet.MultipartRequest;

public class SEND3 extends HttpServlet {
    
    
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        response.setContentType(
"text/html;charset=GB18080");
        PrintWriter out 
= response.getWriter();
        request.setCharacterEncoding(
"GB18030");
        
        
//重新封装请求对象--oreilly
        MultipartRequest req = new MultipartRequest(request,".",5*1024*1024,"GB18030");
        
        String from 
= req.getParameter("from");
        String to 
= req.getParameter("to");
        String subject 
= req.getParameter("subject");
        String context 
= req.getParameter("context");
        String type
=req.getParameter("type");
        
        
//获取文件名
        String filename=req.getFilesystemName("filename");
        
        
// 确定要发送的邮件服务器的地址
        String mailserver = "codedestiny-pc";
        
        
try {
            
// 设置邮件的传输协议
            Properties prop = System.getProperties();
            prop.put(
"mail.smtp.host", mailserver);
            
            
// 建立邮件发送的连接
            Session session = Session.getDefaultInstance(prop, null);
        
            
// 创建发送的信息的载体
            Message msg = new MimeMessage(session);
            
            
// 设置相关的邮件属性
            msg.setFrom(new InternetAddress(from));
            
            
// 点到点的发送
            msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
            msg.setSubject(subject);
            msg.setSentDate(
new Date());
            
            
//处理文件的上传
            if(filename != null){
                
//File file=new File(filename);//存留备份
                MimeBodyPart mbp1 = new MimeBodyPart();
                mbp1.setContent(context, type
+";charset=GB18030");//对于邮件的普通信息的处理
                
                
//附件的处理
                MimeBodyPart mbp2 = new MimeBodyPart();
                FileDataSource fds 
= new FileDataSource(filename);
                mbp2.setDataHandler(
new DataHandler(fds));
                mbp2.setFileName(MimeUtility.encodeText(fds.getName(),
"GB18030","B"));
                
/*
                 * file-----inputStream--|--FileDataSource---DataHandler(fds)接口的封装---mbp2
                 * 
*/

                Multipart mp 
= new MimeMultipart();
                mp.addBodyPart(mbp1);
                mp.addBodyPart(mbp2);
                msg.setContent(mp);
            }

            
else{
                msg.setContent(context, type
+";charset=GB18080");
                
//信封的书写格式
            }

                        
            
// 发送
            Transport.send(msg);
            
        }
 catch (Exception e) {
            e.printStackTrace();
        }


        out.print(
"send ok"+"
");
        out.print(
"查看信件");
        out.flush();
        out.close();
    }


}

 

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给主人留下些什么吧!~~

chinaunix网友2008-09-06 00:10:09

你这程序没有附带发送邮件的java包, 怎能用? 哥们,有时间给发一个。xiaochen.2003.4@163.com 谢谢!