本文介绍如何使用JavaMail发送HTML格式的电子邮件，包括前端表单设计及后端处理逻辑。
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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(); } } |
转载于:https://blog.51cto.com/youxue/342241
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