如何通过java RESTful操作pivotal cloud foundry opsman

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class PCFOpsManagerClient {
    public static void main(String[] args) {
        String opsManagerUrl = "https://opsman.example.com";
        String username = "your-username";
        String password = "your-password";

        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            // 创建 GET 请求
            HttpGet request = new HttpGet(opsManagerUrl + "/api/v0/deployed/products");

            // 设置认证信息
            String auth = username + ":" + password;
            String encodedAuth = Base64.getEncoder().encodeToString(auth.getBytes());
            request.setHeader("Authorization", "Basic " + encodedAuth);

            // 发送请求并获取响应
            HttpResponse response = httpClient.execute(request);
            HttpEntity entity = response.getEntity();
            String responseBody = EntityUtils.toString(entity);

            // 处理响应
            System.out.println(responseBody);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}