Java使用JavaMail发送邮件的方法

本文实例讲述了java使用javamail发送邮件的方法。分享给大家供大家参考，具体如下：

代码一、email_autherticator.java 服务器验证代码

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);
  }
}

代码二、mail.java 发送邮件的代码

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 = "[e-mail]";
  private string mail_from = "[e-mail]";
  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;
  }
}

代码三、test.java 测试发送邮件的代码

public class test {
  public static void main(string[] args) {
 mail m = new mail();
 try {
   m.sendmail();
 } catch (exception e) {
 }
  }
}

希望本文所述对大家java程序设计有所帮助。