【Java】Hutool发送邮件功能

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开通qq邮箱的stmp

在这里插入图片描述

点击设置
点击账号
正常这里是开启服务，因为我已经开启过，所以显示管理服务
会需要手机号发生一段话给某个指定的手机号来做验证，存在发不通的情况(建议换一个号码，指定的手机号，有两个，都试一下)
到这一步，会生成一个密码。你可以理解为邮箱的密码

实战

pom.xml

  <dependency><groupId>cn.hutool</groupId><artifactId>hutool-core</artifactId><version>5.6.5</version></dependency><!--hutool--><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.1.1</version></dependency><!--邮件--><dependency><groupId>com.sun.mail</groupId><artifactId>javax.mail</artifactId><version>1.6.2</version></dependency>

javax.mail对应的依赖需要额外导入

application.yml

#邮件配置
email:#邮箱账户emailAccount:  123@qq.com#邮箱密码emailPassword: 123#发件人名称senderName: 发送人名称##发件服务器 stmp的服务协议的服务器sendServer: smtp.qq.com#发件服务器是否遵循安全协议(0，不是 1是，默认0)sendServerIsSSL: 1##发件服务器端口(一般是若sendServerIsSSL = 1，端口则是25，若不是，则为465)sendPort: 465

只放了关键代码，修改邮箱账号以及邮箱密码(上面开通qq邮箱时，返回的密码)改为自己的
注意: 这是qq邮箱的设置版本，如果是163邮箱版本，个别配置需要微调

controller

package com.zyee.iopace.web.controller;@Api(tags = "用户管理")
@RestController
@RequestMapping("/user")
public class UserController {@Autowiredprivate UserService userService;@ApiOperation(value = "通过邮箱发送验证码")@GetMapping("/sendEmailCode")public ResponseResult sendEmailCode(@RequestParam String email){return userService.sendEmailCode(email);}@ApiOperation(value = "验证邮箱的验证码以及重置密码")@PostMapping("/checkEmailCode")public ResponseResult checkEmailCode(@RequestBody CheckEmailVo checkEmailVo){return userService.checkEmailCode(checkEmailVo);}}

service

    /*** 发送邮件code*/public static  final String EMAIL_CODE = "email:code:";/*** 发送邮件次数*/public static  final String EMAIL_COUNT = "email:count:";/*** 验证邮箱验证码错误次数*/public static  final String EMAIL_CHECK_COUNT = "email:check:count:";@Value("${email.emailAccount}")private String emailAccount;@Value("${email.emailPassword}")private String emailPassword;@Value("${email.senderName}")private String senderName;@Value("${email.sendServer}")private String sendServer;@Value("${email.sendServerIsSSL}")private Integer sendServerIsSSL;@Value("${email.sendPort}")private Integer sendPort;@Overridepublic ResponseResult sendEmailCode(String email) {if(StringUtils.isEmpty(email)){return ResponseResult.FAILURE("邮箱不能为空!");}User user = getOne(new LambdaQueryWrapper<User>().eq(User::getEmail, email));if(Objects.isNull(user)){return ResponseResult.FAILURE("请输入正确的邮箱!");}String key = RedisConstant.EMAIL_COUNT+user.getId();if(checkSendLimit(key,5)){return ResponseResult.FAILURE("一个小时以内只能发送5次!");}//产生6位数的随机码Random random = new Random();int code = random.nextInt(900000) + 10000;//发送验证码Boolean flag = sendEmailUtil.sendEmailMsg(emailAccount, emailPassword, senderName, sendServer, sendServerIsSSL, sendPort, email,code);if(flag){String codeKey = RedisConstant.EMAIL_CODE+user.getId();//验证码的有效时长为5分钟redisUtils.set(codeKey,code,5 * 60);// 增加发送次数incrementSendCount(key,3600L);}else{return ResponseResult.FAILURE("发送邮箱验证码失败,请检查邮箱是否合理!");}return ResponseResult.SUCCESS();}@Overridepublic ResponseResult checkEmailCode(CheckEmailVo checkEmailVo) {if(Objects.isNull(checkEmailVo.getCode()) ||StringUtils.isEmpty(checkEmailVo.getEmail()) ||StringUtils.isEmpty(checkEmailVo.getPwd())){return ResponseResult.FAILURE("参数不能为空!");}//先验证验证码是否正确User user = getOne(new LambdaQueryWrapper<User>().eq(User::getEmail, checkEmailVo.getEmail()));if(Objects.isNull(user)){return ResponseResult.FAILURE("请输入正确的邮箱!");}//错误次数keyString checkKey = RedisConstant.EMAIL_CHECK_COUNT+user.getId();if(checkSendLimit(checkKey,3)){return ResponseResult.FAILURE("5分钟之内错误3次!");}String codekey = RedisConstant.EMAIL_CODE+user.getId();Integer code = redisUtils.getInteger(codekey);if(Objects.isNull(code)){return ResponseResult.FAILURE("验证码已失效!");}else{if(code.intValue() != checkEmailVo.getCode().intValue()){//错误增加次数incrementSendCount(checkKey,5 * 60L);return ResponseResult.FAILURE("验证码错误,请重新输入!");}//验证码正常修改密码User updateUser = new User();updateUser.setId(user.getId());updateUser.setPassword(checkEmailVo.getPwd());updateById(updateUser);}return ResponseResult.SUCCESS();}/*** 验证次数* @param key* @return*/public boolean checkSendLimit(String key,Integer maxSendCount) {Integer sendCount = 0;// 最大发送次数限制// 获取当前发送次数sendCount = redisUtils.getInteger(key);if(Objects.isNull(sendCount)){sendCount = 0;}// 超过发送次数限制返回 true，否则返回 falsereturn sendCount >= maxSendCount;}/*** 增加验证码发送次数* @param key* @param expire 过期秒数*/public void incrementSendCount(String key,Long expire) {// 获取当前发送次数Object countObj = redisUtils.get(key);int sendCount = (countObj != null) ? (Integer) countObj : 0;// 增加发送次数sendCount++;if(sendCount != 1){expire = redisUtils.getExpire(key);}// 存储一小时内的发送次数redisUtils.set(key, sendCount, expire);}

三个变量是redis的变量
主要是用来控制，发送邮箱验证码时，一个用户1个小时以内只能发送5次
输入验证码进行修改密码时，5分钟只能只能错3次，防止有人暴力破解

实体类

package com.zyee.iopace.web.vo.email;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@NoArgsConstructor
@AllArgsConstructor
public class EmailInfoVo {/*** 邮箱账户*/private String emailAccount;/*** 邮箱密码*/private String emailPassword;/*** 发件人名称*/private String senderName;/*** 发件服务器*/private String sendServer;/*** 发件服务器是否遵循安全协议(0，不是 1是，默认0)*/private Integer sendServerIsSSL = 0;/*** 发件服务器端口(一般是若sendServerIsSSL = 1，端口则是25，若不是，则为465)*/private Integer sendPort;}

辅助类

package com.zyee.iopace.web.utils;import cn.hutool.core.util.ObjectUtil;
import cn.hutool.extra.mail.MailAccount;
import cn.hutool.extra.mail.MailUtil;
import com.zyee.iopace.web.vo.email.EmailInfoVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;@Slf4j
@Component
public class SendEmailUtil {public static void main(String[] args) {String emailAccount = "123@qq.com";String emailPassword = "123";String senderName = "465";String sendServer = "smtp.qq.com";Integer sendServerIsSSL = 1;Integer sendPort = 465;String toAccount = "123@qq.com";//产生6位数的随机码Random random = new Random();int code = random.nextInt(900000) + 10000;SendEmailUtil sendEmailUtil = new SendEmailUtil();sendEmailUtil.sendEmailMsg(emailAccount, emailPassword, senderName, sendServer,sendServerIsSSL ,sendPort,toAccount,code);}/*** 发送邮箱消息* @param emailAccount* @param emailPassword* @param senderName* @param sendServer* @param sendServerIsSSL* @param sendPort* @param code*/public  Boolean sendEmailMsg(String emailAccount,String emailPassword,String senderName,String sendServer,Integer sendServerIsSSL,Integer sendPort,String toAcccount,Integer code) {Boolean flag = false;try {EmailInfoVo info = new EmailInfoVo();info.setEmailAccount(emailAccount);info.setEmailPassword(emailPassword);info.setSendPort(sendPort);//遵循stmp的服务协议的服务器，可以百度，很多的info.setSendServer(sendServer);info.setSenderName(senderName);info.setSendServerIsSSL(sendServerIsSSL);MailAccount account = getMailAccount(info);String send = MailUtil.send(account, toAcccount, "【大气气候与环境观测网站】您的注册码", "您的验证码是：" + code + "，五分钟有效，请及时完成注册。若不是本人操作请忽略", false);log.info("发送验证码 msg={} 验证码={}",toAcccount,code);flag = true;}catch (Exception e){log.info("发送验证码 出现异常msg={}",e.getMessage());}return flag;}/*** 获取邮箱参数对象** @param emailInfo* @return*/private static MailAccount getMailAccount(EmailInfoVo emailInfo) {MailAccount account = new MailAccount();if (ObjectUtil.isNotEmpty(emailInfo.getSenderName())) {StringBuilder sb = new StringBuilder();sb.append(emailInfo.getSenderName()).append('<').append(emailInfo.getEmailAccount()).append('>');account.setFrom(sb.toString());} else {account.setFrom(emailInfo.getEmailAccount());account.setUser(emailInfo.getEmailAccount());}account.setPass(emailInfo.getEmailPassword());account.setHost(emailInfo.getSendServer());account.setPort(emailInfo.getSendPort());account.setAuth(true);account.setSocketFactoryClass("javax.net.ssl.SSLSocketFactory");account.setSocketFactoryFallback(true);account.setSocketFactoryPort(emailInfo.getSendPort());if (emailInfo.getSendServerIsSSL() == 0) {account.setSslEnable(false);} else {account.setSslEnable(true);}account.setTimeout(3000);return account;}
}