As a Java backend engineer with experience in Spring Boot and MySQL, making GET requests to retrieve data from a RESTful API will be a familiar concept to you.

In a Spring Boot application, you can define a RESTful API endpoint using the @GetMapping annotation. This annotation maps an HTTP GET request to a specific method in a controller class.

Here's an example of a simple UserController class in a Spring Boot application that handles a GET request for retrieving users:

1import org.springframework.http.ResponseEntity;
2import org.springframework.web.bind.annotation.GetMapping;
3import org.springframework.web.bind.annotation.RestController;
4
5@RestController
6public class UserController {
7
8  @GetMapping("/users")
9  public ResponseEntity<String> getUsers() {
10    // logic for retrieving users from the database
11    // ...
12    
13    // return the response
14    return ResponseEntity.ok("Users retrieved successfully");
15  }
16}

In this example, the @RestController annotation indicates that this class serves as a RESTful controller. The @GetMapping("/users") annotation specifies that this method handles GET requests to the /users endpoint. Inside the method, you can implement the logic to retrieve the users from the database or any other data source.

This is just a basic example, but in a real-world application, you would typically retrieve the data from a database using a repository or service class. You can also return more complex objects instead of just a simple string, such as a list of user objects serialized as JSON.

With your knowledge of Java and Spring Boot, you are well-equipped to make GET requests to retrieve data from a RESTful API in your React application!

Keep in mind that this is just one way to implement a RESTful API using Java and Spring Boot. There are other frameworks and libraries available as well, each with their own benefits and features. It's important to choose the right tools and technologies based on your specific requirements and preferences.

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// replace with JAVA logic relevant to content

// make sure to log something

​

import org.springframework.http.ResponseEntity;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RestController;

​

@RestController

public class UserController {

​

  @GetMapping("/users")

  public ResponseEntity<String> getUsers() {

    // logic for retrieving users from the database

    // ...

    // return the response

    return ResponseEntity.ok("Users retrieved successfully");

  }

}