JavaWeb —— JavaMail邮件发送
用户注册时需要给用户填写的邮箱发送一封激活邮件
一、引入jar包：
mail.jar
activation.jar
二、发送邮件的工具类
1 public class MailUtils extends Thread {
2 //给用户发送邮件的邮箱
3 private String from = "xxxxxx@163.com";
4 //发送邮件的服务器地址
5 private String host = "smtp.163.com";
6 //邮箱的用户名
7 private String username = "xxxxxx";
8 //邮箱的授权码
9 private String password = "xxxxxx";
10
11 private String email;
12 private String emailMsg;
13
14 public MailUtils(String email, String emailMsg) {
15 this.email = email;
16 this.emailMsg = emailMsg;
17 }
18
19 @Override
20 public void run() {
21 try {
22 //创建Properties对象，并设置邮件服务器的基本信息
23 Properties properties = new Properties();
24 //设置邮件传输协议为SMTP
25 properties.setProperty("mail.transport.protocol", "SMTP");
26 //设置SMTP服务器地址
27 properties.setProperty("mail.host", host);
28 //设置SMTP服务器是否需要用户验证，需要验证设置为true
29 properties.setProperty("mail.smtp.auth", "true");
30 //创建验证器
31 Authenticator auth = new Authenticator() {
32 @Override
33 protected PasswordAuthentication getPasswordAuthentication() {
34 return new PasswordAuthentication(username,password);
35 }
36 };
37 //实例化邮件会话Session,发送邮件的环境
38 Session session = Session.getInstance(properties, auth);
39 Message message = sendMail(session, email, emailMsg);
40 //发送邮件
41 Transport.send(message);
42 } catch (MessagingException e) {
43 e.printStackTrace();
44 }
45 }
46
47 public Message sendMail(Session session, String email, String emailMsg) throws AddressException, MessagingException {
48 //创建一个Message,该内容相当于邮件内容
49 Message message = new MimeMessage(session);
50 //设置发送者
51 message.setFrom(new InternetAddress(from));
52 //设置发送方式与接收者，邮件接收者在调用sendMail()方法时通过参数传递进来
53 message.setRecipient(RecipientType.TO, new InternetAddress(email));
54 //设置发送邮件主题
55 message.setSubject("用户注册");
56 message.setContent(emailMsg, "text/html;charset=utf-8");
57 return message;
58 }
59 }
三、创建该工具类完成邮件发送
1 //user.getEmail():接收邮件的地址，eamilMsg:邮件发送的内容，邮件发送比较慢利用线程提高发送的速度 2 String eamilMsg="xxxxxxxxxxxxx"; 3 new MailUtils(user.getEmail(), eamilMsg).start();
163邮箱授权码开启：
