HTTPClient学习

https://www.cnblogs.com/liujisong2014221/articles/8269572.html

转自这里

//访问地址
        String uri = "";
        //创建client对象
        HttpClient client = HttpClients.createDefault();
        //创建post对象
        HttpPost post = new HttpPost(uri);
        
        //请求参数
        List<NameValuePair> paras = new ArrayList<NameValuePair>();
        //键值对
        paras.add(new BasicNameValuePair("username", "admin"));
        paras.add(new BasicNameValuePair("password", "123456"));
        
        //创建entity对象
        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paras);
        
        //把entity对象放入post请求中
        post.setEntity(entity);
        //执行请求
        HttpResponse resp = client.execute(post);
        //获取服务端返回的数据
        HttpEntity en = resp.getEntity();
        //把en对象转为字符串
        String result = EntityUtils.toString(en);
        System.out.println("结果:"+result);

拓展httpurlConnection