springboot中如何在另一个api中调用另一个post mapping api

Question

I made a postmapping call - (/login) I just want to call (/sendotp) api in it. I am making a project where if a person successfully login he will get a otp. This is my code in controller class in springboot -

Controller classs ---

    @PostMapping("/login")
    public SessionHandling loginUser(@RequestBody SessionHandling login) throws Exception {
        String tempEmailId = login.getEmail();
        String takePassword = login.getPassword();
        SessionHandling UserObj = null;
        if(tempEmailId != null && takePassword != null) {
        UserObj = service.fetchUserByEmailIdAndPassword(tempEmailId, takePassword); 
        }
        if(UserObj == null) {
            throw new Exception("invalid / user does not exist");
        }
        return UserObj;
    }
    
    

Emailcontroller class -

@PostMapping("/send-otp")
    public String sendOtp(@RequestParam("email") String email) {
        
        int otp = random.nextInt(999999);
        
        String subject = "OTP from session-handling-proj By Harshit";
        String toEmail = email;
        String body = "<h1> OTP = " + otp + "</h1>";
        
          this.emailService.sendMail(toEmail, subject, body);
          return ("succes");
    }

I just want to call /send-otp in /login if the the login details are correct.

Answer 1

You could create a ServiceOTP class like this:

public class ServiceOTP {
       public void sendOTP(String email) {
           int otp = random.nextInt(999999);
            
            String subject = "OTP from session-handling-proj By Harshit";
            String toEmail = email;
            String body = "<h1> OTP = " + otp + "</h1>";
            
              this.emailService.sendMail(toEmail, subject, body);
       }
    }

Emailcontroller class -

@PostMapping("/send-otp")
public String sendOtp(@RequestParam("email") String email) {
      myServiceOTPInstance.sendOTP(email);
      return ("succes")
}

Controller classs ---

@PostMapping("/login")
    public SessionHandling loginUser(@RequestBody SessionHandling login) throws Exception {
   //your code
    myServiceOTPInstance.sendOTP(email)
   //your code
}