用HttpClient实现RPC-get请求操作

package com.msb.httpclient;

import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.junit.Test;

import java.io.IOException;
import java.net.URISyntaxException;

/**
 * @PackName com.msb.httpclient
 * @Description: This program demonstrates 模拟浏览器发送 get 请求
 * @Date 2022/6/10
 * @Create by Uriel
 * @Version 1.8
 */
public class HttpClientDemo {

    @Test
    public void testGetDemo() {
        // 1. 创建一个http工具类，作用类似浏览器
        CloseableHttpClient client = HttpClients.createDefault();
        try {
            // 2.获取 uri
            URIBuilder uriBuilder = new URIBuilder("http://localhost:8080/demo");
            uriBuilder.addParameter("param", "张三");
            // 3. 发送 Get 请求
            HttpGet httpGet = new HttpGet(uriBuilder.build());
            // 4. 响应 Get 请求
            CloseableHttpResponse response = client.execute(httpGet);
            // 5. 将响应体HttpEntity转为字符串,并设置字符集编码
            String res = EntityUtils.toString(response.getEntity(), "utf-8");
            // 6. 打印响应结果
            System.out.println(res);

            // 7. 释放资源
            response.close();
            client.close();
        } catch (URISyntaxException | IOException e) {
            e.printStackTrace();
        }

    }
}