HttpClient学习记录（一）

HttpClient学习

一、首先在pom中导入httpclient的工具类

<dependency> 	
	<groupId>org.apache.httpcomponents</groupId>    
	<artifactId>httpclient</artifactId>   
    <version>4.5</version>
</dependency>

二、HttpClient在代码中操作步骤

1、首先在代码中创建httpclient连接池

CloseableHttpClient httpClient = HttpClients.createDefault();

2、创建HttpGet对象

HttpGet httpGet = new HttpGet("https://www.baidu.com");

3、使用httpclient连接池执行HttpGet对象，相当于发送get请求

CloseableHttpResponse execute = httpClient.execute(httpGet);

4、获取发送请求的状态码

StatusLine statusLine = execute.getStatusLine();

5、获取实体

HttpEntity entity = execute.getEntity();

6、利用EntityUtils的toString方法将响应实体转化为字符串

String string = EntityUtils.toString(entity, "utf-8");