VerificationCodeService

package me.zhengjie.system.domain;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.hibernate.annotations.CreationTimestamp;

import javax.persistence.*;
import javax.validation.constraints.NotBlank;
import java.sql.Timestamp;

/**
 * @author jie
 * @date 2018-12-26
 */
@Data
@Entity
@AllArgsConstructor
@NoArgsConstructor
@Table(name = "verification_code")
public class VerificationCode {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String code;

    /**
     * 使用场景，自己定义
     */
    private String scenes;

    /**
     * true 为有效，false 为无效，验证时状态+时间+具体的邮箱或者手机号
     */
    private Boolean status = true;


    /**
     * 类型 ：phone 和 email
     */
    @NotBlank
    private String type;

    /**
     * 具体的phone与email
     */
    @NotBlank
    private String value;

    /**
     * 创建日期
     */
    @CreationTimestamp
    private Timestamp createTime;

    public VerificationCode(String code, String scenes, @NotBlank String type, @NotBlank String value) {
        this.code = code;
        this.scenes = scenes;
        this.type = type;
        this.value = value;
    }
}

package me.zhengjie.system.rest;

import me.zhengjie.common.utils.ElAdminConstant;
import me.zhengjie.common.utils.RequestHolder;
import me.zhengjie.core.security.JwtUser;
import me.zhengjie.core.utils.JwtTokenUtil;
import me.zhengjie.system.domain.VerificationCode;
import me.zhengjie.system.service.VerificationCodeService;
import me.zhengjie.tools.domain.vo.EmailVo;
import me.zhengjie.tools.service.EmailService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.web.bind.annotation.*;

/**
 * @author jie
 * @date 2018-12-26
 */
@RestController
@RequestMapping("api")
public class VerificationCodeController {

    @Autowired
    private VerificationCodeService verificationCodeService;

    @Autowired
    private JwtTokenUtil jwtTokenUtil;

    @Autowired
    @Qualifier("jwtUserDetailsService")
    private UserDetailsService userDetailsService;

    @Autowired
    private EmailService emailService;

    @PostMapping(value = "/code/resetEmail")
    public ResponseEntity resetEmail(@RequestBody VerificationCode code) throws Exception {
        code.setScenes(ElAdminConstant.RESET_MAIL);
        EmailVo emailVo = verificationCodeService.sendEmail(code);
        emailService.send(emailVo,emailService.find());
        return new ResponseEntity(HttpStatus.OK);
    }

    @PostMapping(value = "/code/email/resetPass")
    public ResponseEntity resetPass() throws Exception {
        JwtUser jwtUser = (JwtUser)userDetailsService.loadUserByUsername(jwtTokenUtil.getUserName(RequestHolder.getHttpServletRequest()));
        VerificationCode code = new VerificationCode();
        code.setType("email");
        code.setValue(jwtUser.getEmail());
        code.setScenes(ElAdminConstant.RESET_MAIL);
        EmailVo emailVo = verificationCodeService.sendEmail(code);
        emailService.send(emailVo,emailService.find());
        return new ResponseEntity(HttpStatus.OK);
    }

    @GetMapping(value = "/code/validated")
    public ResponseEntity validated(VerificationCode code){
        verificationCodeService.validated(code);
        return new ResponseEntity(HttpStatus.OK);
    }
}

package me.zhengjie.system.service;

import me.zhengjie.system.domain.VerificationCode;
import me.zhengjie.tools.domain.vo.EmailVo;

/**
 * @author jie
 * @date 2018-12-26
 */
public interface VerificationCodeService {

    /**
     * 发送邮件验证码
     * @param code
     */
    EmailVo sendEmail(VerificationCode code);

    /**
     * 验证
     * @param code
     */
    void validated(VerificationCode code);
}

package me.zhengjie.system.service.impl;

import cn.hutool.core.util.RandomUtil;
import me.zhengjie.common.exception.BadRequestException;
import me.zhengjie.common.utils.ElAdminConstant;
import me.zhengjie.system.domain.VerificationCode;
import me.zhengjie.system.repository.VerificationCodeRepository;
import me.zhengjie.system.service.VerificationCodeService;
import me.zhengjie.tools.domain.vo.EmailVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.util.Arrays;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

/**
 * @author jie
 * @date 2018-12-26
 */
@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true, rollbackFor = Exception.class)
public class VerificationCodeServiceImpl implements VerificationCodeService {

    @Autowired
    private VerificationCodeRepository verificationCodeRepository;

    @Value("${code.expiration}")
    private Integer expiration;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public EmailVo sendEmail(VerificationCode code) {
        EmailVo emailVo = null;
        String content = "";
        VerificationCode verificationCode = verificationCodeRepository.findByScenesAndTypeAndValueAndStatusIsTrue(code.getScenes(),code.getType(),code.getValue());
        // 如果不存在有效的验证码，就创建一个新的
        if(verificationCode == null){
            code.setCode(RandomUtil.randomNumbers (6));
            content = ElAdminConstant.EMAIL_CODE + code.getCode() + "</p>";
            emailVo = new EmailVo(Arrays.asList(code.getValue()),"eladmin后台管理系统",content);
            timedDestruction(verificationCodeRepository.save(code));
        // 存在就再次发送原来的验证码
        } else {
            content = ElAdminConstant.EMAIL_CODE + verificationCode.getCode() + "</p>";
            emailVo = new EmailVo(Arrays.asList(verificationCode.getValue()),"eladmin后台管理系统",content);
        }
        return emailVo;
    }

    @Override
    public void validated(VerificationCode code) {
        VerificationCode verificationCode = verificationCodeRepository.findByScenesAndTypeAndValueAndStatusIsTrue(code.getScenes(),code.getType(),code.getValue());
        if(verificationCode == null || !verificationCode.getCode().equals(code.getCode())){
            throw new BadRequestException("无效验证码");
        } else {
            verificationCode.setStatus(false);
            verificationCodeRepository.save(verificationCode);
        }
    }

    /**
     * 定时任务，指定分钟后改变验证码状态
     * @param verifyCode
     */
    private void timedDestruction(VerificationCode verifyCode) {
        //以下示例为程序调用结束继续运行
        ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
        try {
            executorService.schedule(() -> {
                verifyCode.setStatus(false);
                verificationCodeRepository.save(verifyCode);
            }, expiration * 60 * 1000L, TimeUnit.MILLISECONDS);
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}

package me.zhengjie.system.repository;

import me.zhengjie.system.domain.VerificationCode;
import org.springframework.data.jpa.repository.JpaRepository;

/**
 * @author jie
 * @date 2018-12-26
 */
public interface VerificationCodeRepository extends JpaRepository<VerificationCode, Long> {

    /**
     * 获取有效的验证码
     * @param scenes 业务场景，如重置密码，重置邮箱等等
     * @param type
     * @param value
     * @return
     */
    VerificationCode findByScenesAndTypeAndValueAndStatusIsTrue(String scenes,String type,String value);
}