分类： Java
2008-05-15 16:09:53
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(" out.flush(); out.close(); }
}
