Spring RestTemplate GET with parameters

To perform a GET request with parameters using the RestTemplate in Spring, you can use the getForObject() method and pass it a URL with placeholders for the parameters, as well as a map of the parameter values.

Here's an example of how to do this:

import java.util.Collections;
import java.util.Map;

import org.springframework.web.client.RestTemplate;

public class Main {
  public static void main(String[] args) {
    RestTemplate restTemplate = new RestTemplate();
    String url = "http://example.com/users?id={id}&name={name}";
    Map<String, String> params = Collections.singletonMap("id", "123");
    params.put("name", "Alice");
    String result = restTemplate.getForObject(url, String.class, params);

This will send a GET request to the URL http://example.com/users?id=123&name=Alice and print the response.

Note that the getForObject() method returns an object of the specified type (in this case, a String). You can use other methods of the RestTemplate class, such as getForEntity(), to get more information about the response, including the HTTP status code, headers, and more.

I hope this helps! Let me know if you have any questions.