package com.xsha.msmservice.utils;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Random;

/**
 * 說明：短信配置
 * 作者：FH Admin
 * from：fhadmin.cn
 */
public class RandomUtil {

	private static final Random random = new Random();

	private static final DecimalFormat fourdf = new DecimalFormat("0000");

	private static final DecimalFormat sixdf = new DecimalFormat("000000");

	public static String getFourBitRandom() {
		return fourdf.format(random.nextInt(10000));
	}

	public static String getSixBitRandom() {
		return sixdf.format(random.nextInt(1000000));
	}

	/**
	 * 給定數(shù)組，抽取n個數(shù)據(jù)
	 * @param list
	 * @param n
	 * @return
	 */
	public static ArrayList getRandom(List list, int n) {

		Random random = new Random();

		HashMap<Object, Object> hashMap = new HashMap<Object, Object>();

		// 生成隨機數(shù)字并存入HashMap
		for (int i = 0; i < list.size(); i++) {

			int number = random.nextInt(100) + 1;

			hashMap.put(number, i);
		}

		// 從HashMap導入數(shù)組
		Object[] robjs = hashMap.values().toArray();

		ArrayList r = new ArrayList();

		// 遍歷數(shù)組并打印數(shù)據(jù)
		for (int i = 0; i < n; i++) {
			r.add(list.get((int) robjs[i]));
			System.out.print(list.get((int) robjs[i]) + "\t");
		}
		System.out.print("\n");
		return r;
	}
}

package com.xsha.msmservice.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.dysmsapi.model.v20170525.SendSmsRequest;
import com.aliyuncs.dysmsapi.model.v20170525.SendSmsResponse;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.profile.DefaultProfile;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.xsha.msmservice.service.MsmService;
import com.xsha.msmservice.utils.RandomUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 說明：短信配置
 * 作者：FH Admin
 * from：fhadmin.cn
 */
@Service
public class MsmServiceImpl implements MsmService {

    // 注入redis緩存對象
    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    @Override
    public boolean sendMessage(String phone) {
        if(StringUtils.isEmpty(phone)) return false;
        // 先獲取手機號對應的驗證碼（該驗證碼沒過期）
        String code = redisTemplate.opsForValue().get(phone);
        if(!StringUtils.isEmpty(code)) {
            return true;
        }
        // 過期則生成隨機驗證碼，并在發(fā)送之后向redis中存入手機號對應的驗證碼
        code = RandomUtil.getFourBitRandom();
        Map<String, Object> map = new HashMap<>();
        map.put("code", code);

        // 設置短信配置
        DefaultProfile profile = DefaultProfile.getProfile("your region", "your accessId", "your accessSecret");

        IAcsClient client = new DefaultAcsClient(profile);

        SendSmsRequest request = new SendSmsRequest();
        request.setPhoneNumbers(phone);//接收短信的手機號碼
        request.setSignName("your signature name");//短信簽名名稱
        request.setTemplateCode("your template");//短信模板CODE
        request.setTemplateParam(JSONObject.toJSONString(map));//短信模板變量對應的實際值

        try {
            SendSmsResponse response = client.getAcsResponse(request);
            // 發(fā)送短信，盡量打印出來是否發(fā)送成功
            new Gson().toJson(response);
            // 將驗證碼放置在redis緩存中，并設置5分鐘有效時間，最后一個參數(shù)是單位
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);
        } catch (ServerException e) {
            e.printStackTrace();
            return false;
        } catch (ClientException e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }
}