JavaMail学习笔记-2（HTML格式的邮件发送）

 

发送HTML类型的电子邮件： 1.在前端输入页面要在上个的基础上加入对邮件类型的判断 <! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" > < html >      < head >          < title > JavaMail2.html </ title >      </ head >      < body >          < form action ="SEND2" method ="post" >              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" > Text </ option >                      < option value ="text/html" > Html </ option >                   </ select >< br >              Context: < textarea rows ="3" cols ="40" name ="context" ></ textarea >< br >              < input type ="submit" value ="send" >          </ form >      </ body > </ html > 2.编写servlet : SEND2.java package com.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.Date; import java.util.Properties; 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.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class SEND2 extends HttpServlet ... {     public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException ...{          response.setContentType("text/html");          PrintWriter out = response.getWriter();          request.setCharacterEncoding("gb2312");                   String from = request.getParameter("from");          String to = request.getParameter("to");          String subject = request.getParameter("subject");          String context = request.getParameter("context");          String type=request.getParameter("type");                  // 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));                          /**//*               * 群发 msg.setRecipients(Message.RecipientType.TO, new               * InternetAddress[]{new InternetAddress(to),new               * InternetAddress(to)}); //借助循环的标准发送              */              msg.setSubject(subject);              msg.setSentDate(new Date());                          //判断发送的Mime类型              Multipart mp = new MimeMultipart();              MimeBodyPart mbp = new MimeBodyPart();                          //设置邮件发送数据的类型              mbp.setContent(context, type+";charset=GB18030");                          //text/plain或text/html;charset=GB18030,将发送的数据进行封装              mp.addBodyPart(mbp);              msg.setContent(mp);                          // 发送              Transport.send(msg);          } catch (Exception e) ...{              e.printStackTrace();          }          out.print("send ok");          out.flush();          out.close();      } }