首先maven：
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.1</version>
</dependency>
用戶名密碼驗證：
1 public class MailAuthenticator extends Authenticator{
2
3 //郵箱賬號
4 private String username;
5
6 //郵箱密碼
7 private String password;
8
9 public MailAuthenticator(String username,String password){
10 this.username=username;
11 this.password=password;
12 }
13
14 @Override
15 protected PasswordAuthentication getPasswordAuthentication() {
16 return new PasswordAuthentication(username, password);
17 }
18
19 public String getUsername() {
20 return username;
21 }
22 public void setUsername(String username) {
23 this.username = username;
24 }
25 public String getPassword() {
26 return password;
27 }
28 public void setPassword(String password) {
29 this.password = password;
30 }
31 }
1 public class SimpleMailSender {
2 private final transient Properties props = System.getProperties();
3 private transient MailAuthenticator authenticator;
4 private transient Session session;
5
6 public SimpleMailSender(final String smtpHostName, final String username,
7 final String password){
8 try {
9 init(username, password, smtpHostName);
10 } catch (NoSuchProviderException e) {
11 // TODO Auto-generated catch block
12 e.printStackTrace();
13 }
14 }
15 public SimpleMailSender(final String username, final String password) throws NoSuchProviderException {
16 //通過郵箱地址解析出smtp服務器，對大多數郵箱都管用
17 final String smtpHostName = "smtp." + username.split("@")[1];
18 init(username, password, smtpHostName);
19
20 }
21 private void init(String username, String password, String smtpHostName) throws NoSuchProviderException {
22 // 初始化props
23 props.put("mail.transport.protocol", "smtp");
24 props.put("mail.smtp.auth", "true");
25 //qq是smtp.qq.com
26 props.put("mail.smtp.host", smtpHostName);
27 //ssl郵箱端口
28 props.put("mail.smtp.socketFactory.port", 465);//465
29 //開啟ssl
30 props.put("mail.smtp.starttls.enable","true");
31 // 驗證
32 authenticator = new MailAuthenticator(username, password);
33 // 創建session
34 session = Session.getInstance(props, authenticator);
35 session.setDebug(true);
36 // Transport transport = session.getTransport();
37 // try {
38 // transport.connect("smtp.qq.com", 25, "[email protected]", "llg9004_d");
39 // } catch (MessagingException e) {
40 // // TODO Auto-generated catch block
41 // e.printStackTrace();
42 // }
43 }
44 public void send(String recipient, String subject, Object content)
45 throws AddressException, MessagingException {
46 // 創建mime類型郵件
47 final MimeMessage message = new MimeMessage(session);
48 // 設置發信人
49 message.setFrom(new InternetAddress(authenticator.getUsername()));
50 // 設置收件人
51 message.setRecipient(RecipientType.TO, new InternetAddress(recipient));
52 // 設置主題
53 message.setSubject(subject);
54 // 設置郵件內容
55 System.out.println();
56 message.setContent(content.toString(), "text/html;charset=utf-8");
57 // 發送
58 Transport.send(message);
59 }
60 // public void send(String recipient, SimpleMail mail)
61 // throws AddressException, MessagingException {
62 // send(recipient, mail.getSubject(), mail.getContent());
63 // }
64
65 /**
66 * 1.重點現在客戶端掉http端口25，騰訊好像不讓掉了，必須https調用
67 * 2.騰訊使用這種方式連接的話，需要重新申請獨立密碼，不是qq郵箱的密碼，還需開啟pop/smtp功能
68 * 3.用騰訊的郵局發郵件好像有限制，發送過多，好像直接給你連接斷開了
69 * 4.如果需要做發郵件的功能的話，最好自己搭建郵局
70 * @param args
71 * @throws AddressException
72 * @throws MessagingException
73 */
74 public static void main(String[] args) throws AddressException, MessagingException {
75 SimpleMailSender sms= new SimpleMailSender("[email protected]",
76 "dfvasdasdasd");
77 //發送過多的話會斷開連接
78 // for(int i=0;i<100;i++){
79 sms.send("[email protected]", "hello", "hello");
80 // System.out.println("#######:"+i);
81 // }
82 }
83 }
