如何通过rest api获取WSO2 identity server中请求的属性

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class WSO2IdentityServerAPIExample {
    public static void main(String[] args) {
        try {
            // 构建API请求URL
            String apiUrl = "https://your-identity-server.com/api/endpoint";

            // 创建URL对象
            URL url = new URL(apiUrl);

            // 创建HTTP连接
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            // 设置请求方法
            connection.setRequestMethod("GET");

            // 添加请求头（根据需要进行身份验证）
            connection.setRequestProperty("Authorization", "Bearer your-access-token");

            // 发送请求并获取响应
            int responseCode = connection.getResponseCode();
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            StringBuilder response = new StringBuilder();
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();

            // 处理响应数据
            if (responseCode == HttpURLConnection.HTTP_OK) {
                // 解析响应数据，获取请求属性
                String requestAttribute = parseResponse(response.toString());

                // 进行相应的处理
                // ...
            } else {
                // 处理错误响应
                // ...
            }

            // 关闭连接
            connection.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static String parseResponse(String response) {
        // 解析响应数据，获取请求属性
        // ...

        return "requestAttribute";
    }
}