Fdog series (III): use Tencent cloud SMS interface to send SMS, write database, deploy to server, web finale.

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Catalog

Fdog series （ One ）： reasoning , It's better to write a chat software , Let's start with imitation QQ Let's start the registration page .
Fdog series （ Two ）：html What to do after writing the registration page , use java Write backstage response .

The way to get the source code in this article ： Leave your email address in the comments section .

It's not easy to create , Please pay attention , A great bai ！

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1. Preface

The first two articles use respectively html Write the front page and use java Write back-end response code , The data interaction between the front end and the back end is realized , Today's article will show you how to write data to a database , And realize the sending of SMS verification code and how to deploy it to the server , What needs to be used is MYSQL, Tencent SMS service API, Cloud server ,Tomcat.

The source code of all articles has been packaged and uploaded to github, Seeking stars ！

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2. Use Tencent cloud SMS interface to send SMS

I found a lot of people who provide SMS interface services , Or you need to buy thousands at a time , Or you need companies to buy , Go around for several turns , Finally, I found a free SMS here in Tencent cloud , New users can get it for free 100 strip , And every month after that , And it doesn't need enterprise users to use , The link has been found for you , Get it yourself . Tencent cloud SMS free trial

I'll take it as if you've got the text message , Keep going down , Click on the console , And then search for text messages , Go to the following page .

Click domestic SMS , Signature management , Create signature , Choose signature for your own use , The signature type is website , Then it will let you upload the background screenshot of the website , Just write the application instructions and learn to use SMS service .

It takes at least three months for the server to record

Create a body template , In the template {1} It's the verification code we're going to send , almost 30 The application will be successful in 15 minutes .

Click on the application list , If there is no default app , You can create your own

Click application , There is one SDKAppID and App Key, These two codes will be used as important credentials for SMS sending , Keep it safe .

Click on Access management , Get the key pair

After all the above work is done , Click on SMS documents , It's about SDK Download the document , Include Maven and GitHub Two kinds of , Bloggers use the first , It took a lot of effort to use it for the first time ,Maven It's just the integration of packages , Then I'll download it to you directly , If it's too much trouble, you can use the package I downloaded tencentcloud-sdk-java-3.1.217.jar

Then look at the implementation of the specific code

String secretId = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String secretKey= "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
// SMS app  ID
String appid = "xxxxxxxxx";
// SMS signature content 
String sign = " Flower dog's station ";
// SMS template  ID
String templateID = "xxxxxx";
//+86 For the country code ,182******** For cell phone number , Don't exceed at most 200 Mobile phone number 
String[] phoneNumbers = {
     "+86"+phone};
// Template parameter :  If there is no template parameter , Then set to empty 
String[] templateParams = {
    String.valueOf(randnum)};// In the corresponding template {1} randnum Random five digits generated for me 
try {
    
// Necessary steps ：  Instantiate an authentication object , The key pair of Tencent cloud account is required to enter the parameter  secretId  and  secretKey
Credential cred = new Credential(secretId , secretKey);
ClientProfile clientProfile = new ClientProfile();
//SDK  The default with  TC3-HMAC-SHA256  To sign   Do not modify this field unless it is necessary  
clientProfile.setSignMethod("HmacSHA256");
//  Instantiation  SMS  Of  client  object   The second parameter is geographic information , You can fill in the string directly  ap-guangzhou, Or reference a preset constant 
SmsClient client = new SmsClient(cred, "", clientProfile);
// Instantiate a request object , According to the calling interface and the actual situation , You can further set the request parameters   You can directly inquire  SDK  The source code determines which properties of the interface can be set 
SendSmsRequest req = new SendSmsRequest();
//  SMS app  ID:  stay  [ SMS console ]  Add the actual generated after the application  SDKAppID, for example 1400006666 
req.setSmsSdkAppid(appid);
//  SMS signature content :  Use  UTF-8  code , The approved signature must be filled in , You can log in  [ SMS console ]  Check signature information  
req.setSign(sign);
// SMS template  ID:  The approved template must be filled in  ID, You can log in  [ SMS console ]  View templates  ID 
req.setTemplateID(templateID);
// Send out your mobile number , use  e.164  standard ,+[ Country code ][ cell-phone number ]  for example [phone]
req.setPhoneNumberSet(phoneNumbers);				
req.setTemplateParamSet(templateParams);
//  adopt  client  Object call  SendSms  Method to initiate a request . Note that the request method name corresponds to the request object   Back to  res  It's a SendSmsResponse  Class , Corresponding to the request object 
SendSmsResponse res = client.SendSms(req);
//  Output  JSON  Format string package 
System.out.println(SendSmsResponse.toJsonString(res));
//  You can take out a single value , You can use the official website interface document or jump to  response  Object to view the definition of the return field 
System.out.println(res.getRequestId());

SMS effect ：

After successful registration , Let's see how to write data to the database .

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3. java Connect to database

Please download what I have prepared for you first JDBC.

If there are some errors in the connection , This article may help you .Java Connect MySQL And the problems

// Load driver 
try {
    
	Class.forName("com.mysql.jdbc.Driver");
	System.out.print(" Driver loaded successfully ,");
	} catch (ClassNotFoundException e) {
    
		e.printStackTrace();
	}
// Connect to database  127.0.0.1 It can be changed to your server ip You can also write local ip, Because it's going to run on the server in the end ,fdogsql Is the name of the database 
String str = "jdbc:mysql://127.0.0.1:3306/fdogsql?useUnicode=true&characterEncoding=UTF-8&userSSL=false&serverTimezone=GMT%2B8";	
Connection conn=null;
try {
    
	conn=DriverManager.getConnection(str,"root","xxxxxx");
	if (!conn.isClosed()) {
    
		System.out.println(" Successfully connected to database ");
	}
	} catch (SQLException e) {
    
		System.out.println(" Failed to link database : "+e.getMessage());
	}

// Using the data we learned from the front end in the last article , Then write it to the database 
String username = request.getParameter("username");
String password = request.getParameter("password");
String phone = request.getParameter("phone");
String account = String.valueOf(num.ReturnRandNumer_2());//ReturnRandNumer_2 The function randomly generates a 8 Number of digits as account number 
try{
    
	String sql="insert into user(account,phone,name,password) values("+"'"+account+"',"+"'"+phone+"',"+"'"+username+"',"+"'"+password+"'"+")"; 
	Statement stmt = conn.createStatement();
	stmt.executeUpdate(sql);
	System.out.println(" Write successfully ");
			
	// Call registration success page 
	}catch(SQLException e){
    
		System.out.println(" Write failure ");
	}	

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4. Deploy to server （ If you have ）

Eclipse Click on File,Export export , choice WAR File export , Remember to check the red box below

Use the file upload tool , Will be packed WAR file , Upload to server Tomcat Of webapps Under the folder .

If there is no upload tool , Click on download

If not already configured Tomcat, Click on Tomcat Configuration tutorial

After uploading the file ,Tomcat Will automatically WAR File decompression , Use the command to enter bin Catalog , Use command ./shutdown.sh close tomcat service , And then use ./start.sh Turn on tomcat service , Just a few seconds , Can access .

Click to visit this case ：Fdog

At the end of the article ！ If you want the source code, please leave your email in the comments area , Give me a little praise ！

The next article will use Qt Writing is similar to QQ The client login interface of , Previous picture , It includes a lot of small skills , Pay attention to me , Don't get lost ！

See you next time ！

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