HttpClientUtil工具类

青旅半醒 2022-06-06 00:55 124阅读 0赞

带参数的Get请求

public String Get(String url) throws ClientProtocolException, IOException{      
            //1.实例化httpClient对象
            CloseableHttpClient client=HttpClients.createDefault();
            //2.创建一个get实例
            HttpGet get=new HttpGet(url);
            //3.执行请求操作
            CloseableHttpResponse response=client.execute(get);
            //4、读取response
            /*Header[] headers=response.getAllHeaders();*/
            HttpEntity entity=response.getEntity();
            String str=EntityUtils.toString(entity, "utf-8");
    
            //5.关闭服务
            response.close();
            client.close();
            return str;
        }

带参数的post请求

public String Post(String url,String json) throws ClientProtocolException, IOException{
    
            //1.实例化httpClient对象
            CloseableHttpClient client=HttpClients.createDefault();
            //2.创建一个get实例
            HttpPost post=new HttpPost(url);
            //创建请求内容
            StringEntity stringEntity=new StringEntity(json,ContentType.APPLICATION_JSON);
            post.setEntity(stringEntity);
            //3.执行请求操作
            CloseableHttpResponse response=client.execute(post);
            //4、读取response
            HttpEntity entity=response.getEntity();
            String str=EntityUtils.toString(entity, "utf-8");
            System.out.println(entity.toString());
            //5.关闭服务
            response.close();
            client.close();
            return str;
        }