org.springframework.boot
 spring-boot-starter-mail

spring.mail.host=smtp.163.com
spring.mail.username=sple_vip@163.com//发件人邮箱，需要开启smtp服务
spring.mail.password=ming438434//授权密码，非邮箱的登录密码
spring.mail.port=25
spring.mail.protocol=smtp
spring.mail.default-encoding=UTF-8

 

 请输入邮箱
 
 
 找回

$(function () {
 $("#registbtn").click(function() {
 var user = {
 mail:$("#mail").val()
 }
 $.ajax({ 
 type: "POST", 
 url:"/mail.action",
 contentType: "application/json;",
 data: JSON.stringify(user),
 success: function (data) {
 if(data == "successful"){
 alert("已发送至您的邮箱")
 location.href="/login.html" rel="external nofollow" ;
 }
 if (data=="failful") {
 alert("邮箱错误")
 }
 },
 error: function (data) { 
  alert("网络繁忙")
 } 
 });
 
 });
});

@RequestMapping("/mail.action")
public String mail(@RequestBody User user) {
 return mailService.sendMail(user);
}

@Service
public class MailServiceImpl implements MailService{
 @Autowired
 private JavaMailSender javaMailSender;
 @Autowired
 private UserMapper userMapper;
 @Override
 public String sendMail(User user) {
 User user2 = mailPwd(user);
 StringBuilder stringBuilder=new StringBuilder();
 stringBuilder.append("");
 stringBuilder.append("亲爱的用户"+user2.getAccount()+",您的当前密码是："+user2.getPassword());
 stringBuilder.append("
访问百度");
 MimeMessage mimeMessage=javaMailSender.createMimeMessage();
 //multipart模式
 try {
 MimeMessageHelper mimeMessageHelper=new MimeMessageHelper(mimeMessage, true);
 mimeMessageHelper.setTo(user.getMail());//收件人邮箱user.getMail()
 mimeMessageHelper.setFrom("sple_vip@163.com");//发件人邮箱
 mimeMessage.setSubject("找回密码");
 //启用html
 mimeMessageHelper.setText(stringBuilder.toString(),true);
 javaMailSender.send(mimeMessage);
 return Constent.SUCCESSFUL;
 } catch (MessagingException e) {
 e.printStackTrace();
 return Constent.FAILFUL;
 }
 }
 
 /**
 * 通过邮箱到数据库查询用户的信息
 */
 @Override
 public User mailPwd(User user) {
 return userMapper.mailPwd(user);
 }
 
}

public interface UserMapper {
 /**
 * 通过邮箱查询用户信息
 */
 @Select("SELECT * FROM user WHERE mail = #{mail}")
 public User mailPwd(User user);
}