使用 HttpClient 库
HttpClient 是一个 HTTP 客户端库，提供了向 HTTP 服务器发送请求和处理响应的方法。
它支持多种请求协议，如 GET、POST 等，并允许开发者自由地设置请求头、请求参数、连接池等。HttpClient 还提供了基于线程池的异步请求处理方式。
示例代码：
package com.sdwg.module.person.controller.admin.fkyy; import net.sf.json.JSONObject; import org.apache.http.HttpEntity; import org.apache.http.client.methods.CloseableHttpResponse; 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 cs { public static void main(String[] args) throws Exception { CloseableHttpClient httpclient = HttpClients.createDefault(); HttpGet httpget = new HttpGet("https://www.baidu.com"); CloseableHttpResponse response = httpclient.execute(httpget); try { HttpEntity entity = response.getEntity(); String result = EntityUtils.toString(entity); EntityUtils.consume(entity); JSONObject jsonObject = JSONObject.fromObject(result); System.out.println(jsonObject); System.out.println(jsonObject.getString("openid")); } finally { response.close(); } } }
