java mail 邮件发送实例【搬】

说明：转自国外博客：欢迎查阅原作

该实例较新，简明易懂，值得新手借鉴

以gmail为例，注意：

1.通过TLS方式发送

 1 package com.mkyong.common;
 2
 3 import java.util.Properties;
 4
 5 import javax.mail.Message;
 6 import javax.mail.MessagingException;
 7 import javax.mail.PasswordAuthentication;
 8 import javax.mail.Session;
 9 import javax.mail.Transport;
10 import javax.mail.internet.InternetAddress;
11 import javax.mail.internet.MimeMessage;
12
13 public class SendMailTLS {
14
15     public static void main(String[] args) {
16
17         final String username = "[email protected]";
18         final String password = "password";
19
20         Properties props = new Properties();
21         props.put("mail.smtp.auth", "true");
22         props.put("mail.smtp.starttls.enable", "true");
23         props.put("mail.smtp.host", "smtp.gmail.com");
24         props.put("mail.smtp.port", "587");
25
26         Session session = Session.getInstance(props,
27           new javax.mail.Authenticator() {
28             protected PasswordAuthentication getPasswordAuthentication() {
29                 return new PasswordAuthentication(username, password);
30             }
31           });
32
33         try {
34
35             Message message = new MimeMessage(session);
36             message.setFrom(new InternetAddress("[email protected]"));
37             message.setRecipients(Message.RecipientType.TO,
38                 InternetAddress.parse("[email protected]"));
39             message.setSubject("Testing Subject");
40             message.setText("Dear Mail Crawler,"
41                 + "\n\n No spam to my email, please!");
42
43             Transport.send(message);
44
45             System.out.println("Done");
46
47         } catch (MessagingException e) {
48             throw new RuntimeException(e);
49         }
50     }
51 }

2.通过SSL方式发送

 1 package com.mkyong.common;
 2
 3 import java.util.Properties;
 4 import javax.mail.Message;
 5 import javax.mail.MessagingException;
 6 import javax.mail.PasswordAuthentication;
 7 import javax.mail.Session;
 8 import javax.mail.Transport;
 9 import javax.mail.internet.InternetAddress;
10 import javax.mail.internet.MimeMessage;
11
12 public class SendMailSSL {
13     public static void main(String[] args) {
14         Properties props = new Properties();
15         props.put("mail.smtp.host", "smtp.gmail.com");
16         props.put("mail.smtp.socketFactory.port", "465");
17         props.put("mail.smtp.socketFactory.class",
18                 "javax.net.ssl.SSLSocketFactory");
19         props.put("mail.smtp.auth", "true");
20         props.put("mail.smtp.port", "465");
21
22         Session session = Session.getDefaultInstance(props,
23             new javax.mail.Authenticator() {
24                 protected PasswordAuthentication getPasswordAuthentication() {
25                     return new PasswordAuthentication("username","password");
26                 }
27             });
28
29         try {
30
31             Message message = new MimeMessage(session);
32             message.setFrom(new InternetAddress("[email protected]"));
33             message.setRecipients(Message.RecipientType.TO,
34                     InternetAddress.parse("[email protected]"));
35             message.setSubject("Testing Subject");
36             message.setText("Dear Mail Crawler," +
37                     "\n\n No spam to my email, please!");
38
39             Transport.send(message);
40
41             System.out.println("Done");
42
43         } catch (MessagingException e) {
44             throw new RuntimeException(e);
45         }
46     }
47 }

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