首先去阿里云中开启短信服务

然后申请自己的签名，发送的短信模板，之后点击右上角的头像，点击AccessKey，选第一个就行，然后保存这两个对应的值。

 在等待签名和发送模板通过审核之后就可以配置我们的发送方法，我们使用的是redis来存储发送的验证，用来起到验证作用。在Maven中添加需要使用的jar包

 <!-- 短信验证码-->
		<dependency>
			<groupId>com.aliyun</groupId>
			<artifactId>aliyun-java-sdk-core</artifactId>
			<version>4.4.0</version>
		</dependency>
		<dependency>
			<groupId>com.aliyun</groupId>
			<artifactId>aliyun-java-sdk-dysmsapi</artifactId>
			<version>1.0.0</version>
		</dependency>

 记得在添加自己redis的配置。

接下来是使用redis来存储数据的工具类

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import java.util.concurrent.TimeUnit;

@Component
public class RedisUtils {

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    /**
     * 读取缓存
     *
     * @param key
     * @return
     */
    public String get(final String key) {
        return redisTemplate.opsForValue().get(key);
    }

    /**
     * 写入缓存
     */
    public boolean set(final String key, String value) {
        boolean result = false;
        try {
            redisTemplate.opsForValue().set(key, value);
            redisTemplate.expire(key,1, TimeUnit.MINUTES); //一分钟过期
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * 更新缓存
     */
    public boolean getAndSet(final String key, String value) {
        boolean result = false;
        try {
            redisTemplate.opsForValue().getAndSet(key, value);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * 删除缓存
     */
    public boolean delete(final String key) {
        boolean result = false;
        try {
            redisTemplate.delete(key);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }
}

然后是调用发送短信的类，在阿里云操作界面点击这个

需要填的值，填到下方代码的空缺位置即可。

import com.aliyuncs.CommonRequest;
import com.aliyuncs.CommonResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.http.MethodType;
import com.aliyuncs.profile.DefaultProfile;
import com.example.ResumeIdentifySystem.uitl.RedisUtils;
import org.apache.commons.lang3.RandomStringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class Message {
    @Autowired
    RedisUtils redisUtils;


    public static void messagePost(String u_phone, String message) {
        DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou", "填自己ID", "填自己Secret");
        IAcsClient client = new DefaultAcsClient(profile);

        CommonRequest request = new CommonRequest();
        request.setSysMethod(MethodType.POST);
        request.setSysDomain("dysmsapi.aliyuncs.com");
        request.setSysVersion("2017-05-25");
        request.setSysAction("SendSms");
        request.putQueryParameter("RegionId", "cn-hangzhou");
        request.putQueryParameter("PhoneNumbers", u_phone);
        request.putQueryParameter("SignName", "签名");
        request.putQueryParameter("TemplateCode", "******");
        request.putQueryParameter("TemplateParam", "{\"code\":" + message + "}");
        try {
            CommonResponse response = client.getCommonResponse(request);
            System.out.println(response.getData());
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            e.printStackTrace();
        }
    }


    //获取验证码
    public String authcode_get(String u_phone) {
        if(redisUtils.get(u_phone)==null){
            String authcode = "1" + RandomStringUtils.randomNumeric(5);//生成随机数,我发现生成5位随机数时，如果开头为0，发送的短信只有4位，这里开头加个1，保证短信的正确性
            redisUtils.set(u_phone, authcode);//将验证码存入redis缓存
            Message.messagePost(u_phone, authcode);//发送短息
            return "验证码发送成功";
        }
       return "该手机号已经发送过验证码,验证码时间还未到期";
    }

    //验证码登录
    public String authcode_login(String u_phone, String authcode) {

        if (redisUtils.get(u_phone).equals(authcode)) {
            return "验证码正确，登录成功";
        }
        return "验证码错误，登录失败";
    }
}