I love Java Series --- [Ali] cloud messaging service

SMS development API ( used when only part of the third step to modify the winning red )

1. Import coordinate maven

<dependency>
  <groupId>com.aliyun</groupId>
  <artifactId>aliyun-java-sdk-core</artifactId>
  <version>3.3.1</version>
</dependency>
<dependency>
  <groupId>com.aliyun</groupId>
  <artifactId>aliyun-java-sdk-dysmsapi</artifactId>
  <version>1.0.0</version>
</dependency>

2. Tools forming short codes: ValidateCodeUtils

Package com.itheima.health.mobile.utils;
 Import java.util.Random;
 / ** 
 * @date: the Created in 2019/6/11 
 * @description: randomly generated codes tools 
 * @version : 1.0
  * / 

/ ** 
 * tools randomly generated codes 
 * / 
public  class ValidateCodeUtils {
     / ** 
     * randomly generated codes 
     * @param length length of 4 or 6 
     * @return 
     * / 
    public  static Integer generateValidateCode ( int length) { 
        Integer code = null ;
         IF (length ==. 4 ) {
            code = new new the Random () the nextInt (9999);. // generates a random number, a maximum of 9999 
            IF (code <1000 ) { 
                code = code 1000 +; // ensure that the random number is four digits 
            } 
        } the else  IF (length = . 6 = ) { 
            code = new new the random () the nextInt (999999);. // generates a random number, a maximum of 999999 
            IF (code <100000 ) { 
                code = 100000 + code; // ensure that the random number is 6 digits 
            } 
        } the else {
             the throw  new newRuntimeException ( "generate only four or six digit code verification" ); 
        } 
        return code; 
    } 

    / ** 
     * randomly generated codes specify the length of the string 
     * @param length length 
     * @return 
     * / 
    public  static String generateValidateCode4String ( int length) { 
        the Random RDM = new new the Random (); 
        String hash1 = Integer.toHexString (rdm.nextInt ()); 
        String capstr = hash1.substring (0 , length);
         return capstr; 
    } 
}

3. Send SMS codes tools: SMSUtils

package com.itheima.health.mobile.utils;

/**
 * @date ：Created in 2019/6/11
 * @description ：
 * @version: 1.0
 */

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.http.MethodType;
import com.aliyuncs.profile.DefaultProfile;
import com.aliyuncs.profile.IClientProfile;

/**
 * 短信发送工具类
 */
public  class SMSUtils {
     public  static  Final String VALIDATE_CODE = " the SMS_ into your own "; // send SMS verification code 
    public  static  Final String ORDER_NOTICE = " the SMS_ into your own "; // examination reservation success notification 
    / * * 
     * send SMS 
     * @param phoneNumbers 
     * @param param 
     * @throws ClientException
      * / 
    public  static  void sendShortMessage (phoneNumbers String, String param) throws ClientException { 
        System.setProperty ( "sun.net.client.defaultConnectTimeout", "10000" ); 
        System.setProperty ( "sun.net.client.defaultReadTimeout", "10000" );
         // initialize ascClient need a few parameters 
        Final String Product = "Dysmsapi"; // SMS API product name (product name fixed SMS, without modification) 
        Final String domain = "dysmsapi.aliyuncs.com"; // SMS API product domain name (interface address fixed, without modification) 
        Final String accessKeyId = " into your own "; // your accessKeyId, 
        Final String accessKeySecret = " into your own ";// your accessKeySecret,
         // initialization ascClient, does not support multi-region (do not modify)
        Profile = DefaultProfile.getProfile IClientProfile ( "CN-Hangzhou" , accessKeyId, accessKeySecret); 
        DefaultProfile.addEndpoint ( "CN-Hangzhou", "CN-Hangzhou" , Product, Domain); 
        IAcsClient acsClient = new new DefaultAcsClient (Profile);
         // assembly request object 
        SendSmsRequest = request new new SendSmsRequest ();
         // use the post submission 
        request.setMethod (MethodType.POST);
         // required: phone number to be transmitted. Support batch call to comma-delimited form, the upper limit is 1000 batch cell phone number, the call volume with respect to a single call to the timeliness of a slight delay, the type of message authentication code is recommended to use a single call 
        request.setPhoneNumbers (phoneNumbers);
         // required: SMS signature - can be found in the SMS console
        request.setSignName ( " change their message signatures " );
         // Required: SMS templates - can be found in the SMS console 
        request.setTemplateCode (VALIDATE_CODE);
         // Optional: template variable substitution JSON string, such as templates reads "Dear $ {name}, your verification code is $ {code}", the value is here
         // tips: If you need to JSON with line breaks, please refer to the standard JSON protocol for line breaks requirements, such as the content of the message contains \ r \ n in the case of need expressed in JSON \\ r \\ n, otherwise it will lead to failure in the server parse JSON 
        IF (param! = null && param.length ()> 0 ) { 
            request.setTemplateParam ( "{\" code \ ": \" "+ + param" \ "}" ); 
        } 
        SendSmsResponse sendSmsResponse = acsClient.getAcsResponse (Request); 
        the System.out.println("SendSms Result:"+sendSmsResponse.getMessage());
        if (sendSmsResponse.getCode() != null && sendSmsResponse.getCode().equals("OK")) {
            // 请求成功
            System.out.println("请求成功");
        }
    }
    public static void main(String args[]) throws Exception{
        String validateCode = ValidateCodeUtils.generateValidateCode4String(4);
        System.out.println("validateCode:"+validateCode);
        SMSUtils.sendShortMessage("手机号码",validateCode);
    }
}