如何从httpclient请求中获取字符串

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;

public class HttpClientExample {
    public static void main(String[] args) {
        // 创建HttpClient对象
        HttpClient httpClient = HttpClientBuilder.create().build();

        // 创建HttpGet请求对象
        HttpGet httpGet = new HttpGet("http://example.com/api");

        try {
            // 发送请求并获取响应
            HttpResponse response = httpClient.execute(httpGet);

            // 解析响应
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode == 200) {
                // 获取响应体
                HttpEntity entity = response.getEntity();
                String responseBody = EntityUtils.toString(entity);

                // 输出响应体
                System.out.println(responseBody);
            } else {
                System.out.println("请求失败，状态码：" + statusCode);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}