如何使用Spring Rest模板从Firebase接收随机生成的json值？

import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestTemplate;

public class FirebaseClient {
    public static void main(String[] args) {
        // 创建RestTemplate实例
        RestTemplate restTemplate = new RestTemplate();

        // 构建请求URL
        String url = "https://your-firebase-url/random-json";

        // 发送GET请求
        ResponseEntity<RandomJson> response = restTemplate.exchange(url, HttpMethod.GET, null, RandomJson.class);

        // 获取响应结果
        RandomJson randomJson = response.getBody();

        // 处理响应数据
        System.out.println("随机生成的JSON值：" + randomJson.getValue());
    }
}

class RandomJson {
    private String value;

    // getter和setter方法

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }
}