总览：（总体功能与注册发送短信功能相似）

在web模块service.impl包下，创建SmsCodeLoginImpl，实现的还是SmsService接口

package com.bjpowernode.front.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.bjpowernode.common.constants.RedisKey;
import com.bjpowernode.front.config.JdwxSmsConfig;
import com.bjpowernode.front.service.SmsService;
import org.apache.commons.lang3.RandomStringUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.concurrent.TimeUnit;

/**
 * 登录发送短信验证码
 */

@Service(value = "smsCodeLoginImpl")
public class SmsCodeLoginImpl implements SmsService {

    @Resource
    private StringRedisTemplate stringRedisTemplate;

    @Resource
    private JdwxSmsConfig smsConfig;

    @Override
    public boolean sendSms(String phone) {
        boolean send = false;
        // 设置短信内容
        String random  = RandomStringUtils.randomNumeric(4);
        System.out.println("登录验证码的随机数 random="+random);
        //更新content中的  %s   【大富科技】登录验证码是：%s，3分钟内有效，请勿泄露给他人
        String content  = String.format(smsConfig.getLoginText(), random);

        //使用HttpClient发送 get 请求给第三方。
        CloseableHttpClient client = HttpClients.createDefault();
        //https://way.jd.com/chuangxin/dxjk?mobile=13568813957&content=
        //【创信】你的验证码是：5873，3分钟内有效！&appkey=您申请的APPKEY
        String url = smsConfig.getUrl()+"?mobile="+phone
                        +"&content=" + content
                        +"&appkey="+smsConfig.getAppkey();
        HttpGet get  = new HttpGet(url);

        try{
            //CloseableHttpResponse response = client.execute(get);
           // if( response.getStatusLine().getStatusCode() == HttpStatus.SC_OK ){
                //得到返回的数据，json
                //String text = EntityUtils.toString(response.getEntity());
                String text="{\n" +
                        "    \"code\": \"10000\",\n" +
                        "    \"charge\": false,\n" +
                        "    \"remain\": 1305,\n" +
                        "    \"msg\": \"查询成功\",\n" +
                        "    \"result\": {\n" +
                        "        \"ReturnStatus\": \"Success\",\n" +
                        "        \"Message\": \"ok\",\n" +
                        "        \"RemainPoint\": 420842,\n" +
                        "        \"TaskID\": 18424321,\n" +
                        "        \"SuccessCounts\": 1\n" +
                        "    }\n" +
                        "}";
                //解析json
                if(StringUtils.isNotBlank(text)){
                    // fastjson
                    JSONObject jsonObject = JSONObject.parseObject(text);
                    if("10000".equals(jsonObject.getString("code"))){ //第三方接口调用成功
                        //读取result中的key：ReturnStatus
                        if("Success".equalsIgnoreCase(
                                jsonObject.getJSONObject("result").getString("ReturnStatus"))){
                            //短信发送成功
                            send  = true;

                            //把短信验证码，存到redis
                            String key = RedisKey.KEY_SMS_CODE_LOGIN + phone;
                            stringRedisTemplate.boundValueOps(key).set(random,3 , TimeUnit.MINUTES);

                        }
                    }
                }
           // }
        }catch (Exception e){
            e.printStackTrace();
        }
        return send;
    }

    @Override
    public boolean checkSmsCode(String phone, String code) {
        String key = RedisKey.KEY_SMS_CODE_LOGIN + phone;
        if( stringRedisTemplate.hasKey(key)){
            String querySmsCode = stringRedisTemplate.boundValueOps(key).get();
            if( code.equals(querySmsCode)){
                return true;
            }
        }
        return false;
    }

}

其中：
验证码存入redis时更新添加相应的RedisKey（在common模块constants包下的RedisKey类）：

    /*登录时，短信验证码 SMS:LOGIN:手机号*/
    public static final String KEY_SMS_CODE_LOGIN = "SMS:LOGIN:";

在web模块下补充对应的SmsController类：

package com.bjpowernode.front.controller;

import com.bjpowernode.common.constants.RedisKey;
import com.bjpowernode.common.enums.RCode;
import com.bjpowernode.common.util.CommonUtil;
import com.bjpowernode.front.service.SmsService;
import com.bjpowernode.front.view.RespResult;
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@Api(tags = "短信业务")
@RestController
@RequestMapping("/v1/sms")
public class SmsController extends BaseController {

    @Resource(name = "smsCodeRegisterImpl")
    private SmsService smsService;

    @Resource(name = "smsCodeLoginImpl")
    private SmsService loginSmsService;

    /**发送注册验证码短信*/
    @GetMapping("/code/register")
    public RespResult sendCodeRegister(@RequestParam String phone){
        RespResult result = RespResult.fail();
        if(CommonUtil.checkPhone(phone)){
            //判断redis中是否有这个手机号的验证码
            String key  = RedisKey.KEY_SMS_CODE_REG + phone;
            if(stringRedisTemplate.hasKey(key)){
                result = RespResult.ok();
                result.setRCode(RCode.SMS_CODE_CAN_USE);
            } else {
                boolean isSuccess = smsService.sendSms(phone);
                if( isSuccess ){
                    result = RespResult.ok();
                }
            }
        } else {
            result.setRCode(RCode.PHONE_FORMAT_ERR);
        }
        return result;
    }

    /**发送登录验证码短信*/
    @GetMapping("/code/login")
    public RespResult sendCodeLogin(@RequestParam String phone){
        RespResult result = RespResult.fail();
        if(CommonUtil.checkPhone(phone)){
            //判断redis中是否有这个手机号的验证码
            String key  = RedisKey.KEY_SMS_CODE_LOGIN + phone;
            if(stringRedisTemplate.hasKey(key)){
                result = RespResult.ok();
                result.setRCode(RCode.SMS_CODE_CAN_USE);
            } else {
                boolean isSuccess = loginSmsService.sendSms(phone);
                if( isSuccess ){
                    result = RespResult.ok();
                }
            }
        } else {
            result.setRCode(RCode.PHONE_FORMAT_ERR);
        }
        return result;
    }
}