<dependency>
 <groupId>aliyun-message-sdk-core</groupId>
 <artifactId>aliyun-message-sdk-core</artifactId>
 <version>3.2.3</version>
 <scope>system</scope>
 <systemPath>${project.basedir}/src/main/resources/lib/aliyun-java-sdk-core-3.2.2.jar</systemPath>
</dependency>
<dependency>
 <groupId>aliyun-message-sdk-mns</groupId>
 <artifactId>aliyun-message-sdk-mns</artifactId>
 <version>1.1.8</version>
 <scope>system</scope>
 <systemPath>${project.basedir}/src/main/resources/lib/aliyun-sdk-mns-1.1.8.jar</systemPath>
</dependency>
<dependency>
 <groupId>aliyun-java-sdk-dysmsapi</groupId>
 <artifactId>aliyun-java-sdk-dysmsapi</artifactId>
 <version>1.0.0</version>
 <scope>system</scope>
 <systemPath>${project.basedir}/src/main/resources/lib/aliyun-java-sdk-dysmsapi-1.0.0-SANPSHOT.jar</systemPath>
</dependency>

public class AliyunMessageUtil {
 private static final String product = "Dysmsapi";
 //产品域名,开发者无需替换
 private static final String domain = "dysmsapi.aliyuncs.com";
 // 此处需要替换成开发者自己的AK(在阿里云访问控制台寻找)
 private static final String accessKeyId = "这里替换你的accessKeyId";
 private static final String accessKeySecret = "这里替换你的accessKeySecret";
 public static SendSmsResponse sendSms(Map<String, String> paramMap) throws com.aliyuncs.exceptions.ClientException {
  //可自助调整超时时间
  System.setProperty("sun.net.client.defaultConnectTimeout", "10000");
  System.setProperty("sun.net.client.defaultReadTimeout", "10000");
  //初始化acsClient,暂不支持region化
  IClientProfile profile = DefaultProfile.getProfile("cn-hangzhou", accessKeyId, accessKeySecret);
  DefaultProfile.addEndpoint("cn-hangzhou", "cn-hangzhou", product, domain);
  IAcsClient acsClient = new DefaultAcsClient(profile);
  //组装请求对象-具体描述见控制台-文档部分内容
  SendSmsRequest request = new SendSmsRequest();
  //必填:待发送手机号
  request.setPhoneNumbers(paramMap.get("phoneNumber"));
  //必填:短信签名-可在短信控制台中找到
  request.setSignName(paramMap.get("msgSign"));
  //必填:短信模板-可在短信控制台中找到
  request.setTemplateCode(paramMap.get("templateCode"));
  //可选:模板中的变量替换JSON串,如模板内容为"亲爱的${name},您的验证码为$[code]"时,此处的值为
  request.setTemplateParam(paramMap.get("jsonContent"));
  //选填-上行短信扩展码(无特殊需求用户请忽略此字段)
//  request.setSmsUpExtendCode(paramMap.get("extendCode"));
  //可选:outId为提供给业务方扩展字段,最终在短信回执消息中将此值带回给调用者
//  request.setOutId(paramMap.get("outId"));
  //hint 此处可能会抛出异常，注意catch
  SendSmsResponse sendSmsResponse = acsClient.getAcsResponse(request);
  return sendSmsResponse;
 }
}

public String sendMsg() throws LgdServiceException, ClientException {
 String phoneNumber = "18888888888";
 String randomNum = createRandomNum(6);
 String jsonContent = "{\"number\":\"" + randomNum + "\"}";
 Map<String, String> paramMap = new HashMap<>();
 paramMap.put("phoneNumber", phoneNumber);
 paramMap.put("msgSign", "喝酒不骑马");
 paramMap.put("templateCode", "xxxxxxxx");
 paramMap.put("jsonContent", jsonContent);
 SendSmsResponse sendSmsResponse = AliyunMessageUtil.sendSms(paramMap);
 if(!(sendSmsResponse.getCode() != null && sendSmsResponse.getCode().equals("OK"))) {
  if(sendSmsResponse.getCode() == null) {
   //这里可以抛出自定义异常
  }
  if(!sendSmsResponse.getCode().equals("OK")) {
    //这里可以抛出自定义异常
  }
 }
}
/**
 * 生成随机数
 * @param num 位数
 * @return
 */
public static String createRandomNum(int num){
 String randomNumStr = "";
 for(int i = 0; i < num;i ++){
  int randomNum = (int)(Math.random() * 10);
  randomNumStr += randomNum;
 }
 return randomNumStr;
}