java实现邮件发送

一申请授权码

具体申请方式请自行百度，很简单的

二 163网易邮箱发送

2.1 导入pom

<dependency><groupId>com.sun.mail</groupId><artifactId>javax.mail</artifactId><version>1.6.2</version></dependency>

2.2 新建一个发送类，代码如下：

package com.budwk.app.atest;import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;public class TestDemo {public static void main(String[] args) throws Exception {//	创建Session会话Session session = createSession();//	创建邮件对象MimeMessage mimeMessage = new MimeMessage(session);// 发送人mimeMessage.setFrom(new InternetAddress("123@163.com"));// 接收人mimeMessage.setRecipient(Message.RecipientType.TO,new InternetAddress("XXX@qq.com"));mimeMessage.setSubject("Hello Mail");mimeMessage.setContent("我的想法是把代码放进一个循环里", "text/html;charset=UTF-8");//	发送Transport.send(mimeMessage);}public static Session createSession() {//	账号信息String username = "123";//	邮箱发送账号String password = "dfgdfgdsfdsfe";//	邮箱授权码//	创建一个配置文件Properties props = new Properties();props.setProperty("mail.host", "smtp.163.com");props.setProperty("mail.transport.protocol", "smtp");props.setProperty("mail.smtp.auth", "true");Session session = Session.getInstance(props,new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {// 主要作用是校验授权码return new PasswordAuthentication(username,password);}});//  控制台打印调试信息session.setDebug(true);return session;}
}

以上代码直接复制，运行main方法，即可：效果如下图：