『JAVA基础』使用JavaMail发邮件的实例

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

public class Email_Autherticator extends Authenticator {
String username = "你邮箱的用户名";

String password = "你邮箱的密码";
public Email_Autherticator() {
super();
}
public Email_Autherticator(String user,String pwd){
super();
username = user;
password = pwd;
}
public PasswordAuthentication getPasswordAuthentication(){
return new PasswordAuthentication(username,password);
}
}

import java.util.Date;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.SendFailedException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class Mail {
private String host = "smtp.126.com";

private String mail_head_name = "this is head of this mail";

private String mail_head_value = "this is head of this mail";

private String mail_to = "254173774@qq.com";

private String mail_from = "hackboyo@126.com";

private String mail_subject = "this is the subject of this test mail";

private String mail_body = "this is mail_body of this test mail";

private String personalName = "我的邮件";
public void sendMail() throws SendFailedException{
try {
Properties props = new Properties();//获取系统环境 
Authenticator auth = new Email_Autherticator();//进行邮件服务用户认证 
props.put("mail.smtp.host", host);
props.put("mail.smtp.auth", "true");
System.out.println(props);
Session session = Session.getDefaultInstance(props,auth);
//设置session,和邮件服务器进行通讯 
MimeMessage message = new MimeMessage(session);
message.setContent("Hello","text/plain");//设置邮件格式 
message.setSubject(mail_subject);//设置邮件主题 
message.setText(mail_body);//设置邮件内容 
message.setHeader(mail_head_name, mail_head_value);//设置邮件标题 
message.setSentDate(new Date());//设置邮件发送时期 
Address address = new InternetAddress(mail_from,personalName);
message.setFrom(address);//设置邮件发送者的地址 
Address toaddress = new InternetAddress(mail_to);//设置邮件接收者的地址 
message.addRecipient(Message.RecipientType.TO,toaddress);
System.out.println(message);
Transport.send(message);
System.out.println("Send Mail Ok!");
} catch (Exception e) {
e.printStackTrace();
}
//return flag; 
}
}

public class Test {
public static void main(String[] args) {
Mail m = new Mail();
try {
m.sendMail();
} catch (Exception e) {

}
}
}