HTTPClient基本使用

<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.2</version>
</dependency>

package com.httpclient.demo;

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.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.testng.annotations.Test;

import java.io.IOException;

public class HttpClientDemo {
    @Test
    public void test01() {
        //创建get请求
        String uri = "https://www.baidu.com";
        HttpGet get = new HttpGet(uri);
        //获取http客户端
        CloseableHttpClient client = HttpClientBuilder.create().build();
        //响应模型
        CloseableHttpResponse response = null;
        try {
            //由http客户端，发送get请求
            response = client.execute(get);
            //从响应中，获取响应实体
            HttpEntity respEntity = response.getEntity();
            String result = EntityUtils.toString(respEntity, "utf-8");
            System.out.println(result);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}