使用阿里云短信API接口

第一步：导入maven依赖包

<dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-core</artifactId>
            <version>4.4.6</version>
</dependency>      

package com.example.demo.sms;


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;

public class SendSms {
    public static void main(String[] args) {
        final String accessKeyId = "阿里云AccessKeyId";
        final String accessSecret = "阿里云AccessSecret";
        DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou", accessKeyId, accessSecret);
        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");
        //此处放接收验证码的手机号
        String phone = "手机号码";
        request.putQueryParameter("PhoneNumbers", phone);
        //此处放签名名称（必须审核通过）
        String signName = "短信签名名称";
        request.putQueryParameter("SignName", signName);
        //此处放短信模板（必须审核通过）
        String templateCode = "短信模板Code";
        request.putQueryParameter("TemplateCode", templateCode);
        //此处放验证码的内容（JSON数据格式）
        String templateParam = "{\"code\":\"" + "六位随机数字" + "\"}";
        request.putQueryParameter("TemplateParam", templateParam);
        try {
            CommonResponse response = client.getCommonResponse(request);
            System.out.println(response.getData());
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            e.printStackTrace();
        }
    }
}