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Spring boot Annotations

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In this tutorials explain the following annotations

RestController :  is used for creating a restful API services.

RequestMapping: is used for specify following request GET, PUT, POST, DELETE, etc.

Cross-origin :  is an important annotation which used to calling restful API request from the front-end application
like Anqular or React or vue js or other.

 

Create the new Controller as

TestController

package com.springschool.firstapp.controller;

import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@CrossOrigin
@RequestMapping("api/v1/test")
public class TestController {

    @PostMapping
    public void getMyApp()
    {
        String myApp = "This my First Application";
        System.out.println(myApp);
    }
}

i have attached the video link below. which will do this tutorials step by step

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