首先maven：
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.1</version>
</dependency>
用户名密码验证：
public class MailAuthenticator extends Authenticator{
//邮箱账号
private String username;
//邮箱密码
private String password;
public MailAuthenticator(String username,String password){
this.username=username;
this.password=password;
}
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
public class SimpleMailSender {
private final transient Properties props = System.getProperties();
private transient MailAuthenticator authenticator;
private transient Session session;
public SimpleMailSender(final String smtpHostName, final String username,
final String password){
try {
init(username, password, smtpHostName);
} catch (NoSuchProviderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public SimpleMailSender(final String username, final String password) throws NoSuchProviderException {
//通过邮箱地址解析出smtp服务器，对大多数邮箱都管用
final String smtpHostName = "smtp." + username.split("@")[1];
init(username, password, smtpHostName);
}
private void init(String username, String password, String smtpHostName) throws NoSuchProviderException {
// 初始化props
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.auth", "true");
//qq是smtp.qq.com
props.put("mail.smtp.host", smtpHostName);
//ssl邮箱端口
props.put("mail.smtp.socketFactory.port", 465);//465
//开启ssl
props.put("mail.smtp.starttls.enable","true");
// 验证
authenticator = new MailAuthenticator(username, password);
// 创建session
session = Session.getInstance(props, authenticator);
session.setDebug(true);
// Transport transport = session.getTransport();
// try {
// transport.connect("smtp.qq.com", 25, "530486639@qq.com", "llg9004_d");
// } catch (MessagingException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
}
public void send(String recipient, String subject, Object content)
throws AddressException, MessagingException {
// 创建mime类型邮件
final MimeMessage message = new MimeMessage(session);
// 设置发信人
message.setFrom(new InternetAddress(authenticator.getUsername()));
// 设置收件人
message.setRecipient(RecipientType.TO, new InternetAddress(recipient));
// 设置主题
message.setSubject(subject);
// 设置邮件内容
System.out.println();
message.setContent(content.toString(), "text/html;charset=utf-8");
// 发送
Transport.send(message);
}
// public void send(String recipient, SimpleMail mail)
// throws AddressException, MessagingException {
// send(recipient, mail.getSubject(), mail.getContent());
// }
/**
* 1.重点现在客户端掉http端口25，腾讯好像不让掉了，必须https调用
* 2.腾讯使用这种方式连接的话，需要重新申请独立密码，不是qq邮箱的密码，还需开启pop/smtp功能
* 3.用腾讯的邮局发邮件好像有限制，发送过多，好像直接给你连接断开了
* 4.如果需要做发邮件的功能的话，最好自己搭建邮局
* @param args
* @throws AddressException
* @throws MessagingException
*/
public static void main(String[] args) throws AddressException, MessagingException {
SimpleMailSender sms= new SimpleMailSender("10000@qq.com",
"dfvasdasdasd");
//发送过多的话会断开连接
// for(int i=0;i<100;i++){
sms.send("11111@qq.com", "hello", "hello");
// System.out.println("#######:"+i);
// }
}
}