package com.imooc.MRAutoSpace.utils.http;

import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;

import java.io.IOException;

public class HttpClientUtil {
    public void testMethod(){
        CloseableHttpClient httpClient = HttpClientBuilder.create().build();
        String url = "http://localhost:19090/getClassName?name=value";
        HttpGet get = new HttpGet(url);
        try {
            httpClient.execute(get);
            httpClient.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void testMethodPost(){
        CloseableHttpClient httpClient = HttpClientBuilder.create().build();
        String url = "http://localhost:19090/getClassName?name=value";
        HttpPost post = new HttpPost(url);
        try {
            httpClient.execute(post);
            httpClient.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        HttpClientUtil util = new HttpClientUtil();
//        util.testMethod();
        util.testMethodPost();
    }
}

发送Get/Post请求过程 

1、初始化Http连接 

2、定义请求的唯一标识URL 

3、定义请求消息对象 

4、发送请求 

5、关闭连接

1、新建maven项目

2、编辑pom.xml文件，添加dependency(junit,log4j,httpclient)

课件怎么下载

一、ApacheHttpClient介绍

1、严格按照HTTO1.1开发

2、功能强大，易扩展

3、wiki：https//hc.apache.org/

二、发送get/post请求

1、初始化Http

2、定义请求的唯一标识URL

3、定义请求消息对象