JMAIL实现源码(附件)

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 SEND2 extends HttpServlet { public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=gb2312"); PrintWriter out = response.getWriter(); request.setCharacterEncoding("gb2312"); //重新封装请求对象--oreilly MultipartRequest req=new MultipartRequest(request,".",5*1024*1024,"GB2312"); 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 = "d9e307714c5044f"; // 设置邮件的传输协议 try { 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)); //如何处理文件的上传 if(filename!=null){ //File file=new File(filename);//存留备份 MimeBodyPart mbp1=new MimeBodyPart(); mbp1.setContent(context, type+";charset=GB2312");//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(),"GB2312","B")); /* * file-----inputStream--|--FileDataSource---DataHandler(fds)接口的封装---mpb2 * */ Multipart mp=new MimeMultipart(); mp.addBodyPart(mbp1); mp.addBodyPart(mbp2); msg.setContent(mp); } else{ msg.setContent(context, type+";charset=GB2312"); //信封的书写格式 } // 发送 Transport.send(msg); } catch (Exception e) { } out.print("send ok"+"<br>"); out.print("<a href='http://localhost/mail/index.asp'>查看信件</a>"); out.flush(); out.close(); } }