1、maven环境
<!-- 发送邮件 -->
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-email</artifactId>
<version>1.4</version>
</dependency>
2、编写邮箱发送工具类MaliUtil(163邮箱)
package com.ldf.cnblogs.utils;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class MailUtil {
public static boolean sendMail(String email,String title, String emailMsg) {
String from = "换成发件人邮箱地址"; // 邮件发送人的邮件地址
String to = email; // 邮件接收人的邮件地址
final String username = "换成发件人邮箱账户"; //发件人的邮件帐户
final String password = "换成发件账户的授权码"; //发件人的邮件授权码
//定义Properties对象,设置环境信息
Properties props = System.getProperties();
//设置邮件服务器的地址
props.setProperty("mail.smtp.host", "smtp.163.com"); // 指定的smtp服务器
props.setProperty("mail.smtp.auth", "true");
props.setProperty("mail.transport.protocol", "smtp");//设置发送邮件使用的协议
//创建Session对象,session对象表示整个邮件的环境信息
Session session = Session.getInstance(props);
//设置输出调试信息
session.setDebug(true);
try {
//Message的实例对象表示一封电子邮件
MimeMessage message = new MimeMessage(session);
//设置发件人的地址
message.setFrom(new InternetAddress(from));
//设置主题
message.setSubject(title);
//设置邮件的文本内容
//message.setText("Welcome to JavaMail World!");
message.setContent((emailMsg),"text/html;charset=utf-8");
//从session的环境中获取发送邮件的对象
Transport transport=session.getTransport();
//连接邮件服务器
transport.connect("smtp.163.com",25, username, password);
//设置收件人地址,并发送消息
transport.sendMessage(message,new Address[]{new InternetAddress(to)});
transport.close();
return true;
} catch (MessagingException e) {
e.printStackTrace();
return false;
}
}
}
3、调用邮箱发送工具类
public boolean sendEmail(String email) {
String activeCode = "";
for (int i = 0;i<6;i++){
activeCode=(int)(Math.random()*10)+activeCode;
}
return MailUtil.sendMail(email,"博客园账户邮箱激活",
"验证码为"+activeCode);
}
4、163邮箱配置



至此,163邮箱才能够成功发送邮件