package com.demo.ccx;

import org.apache.commons.httpclient.HttpClient;

import org.apache.http.HttpEntity;

import org.apache.http.ParseException;

import org.apache.http.client.ClientProtocolException;

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.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.boot.test.context.SpringBootTest;

import org.springframework.test.context.junit4.SpringRunner;

import java.io.IOException;

import java.util.HashMap;

import java.util.Map;

/**

 * @author ccx 2019/09/26 下午 03:10

 */

@RunWith(SpringRunner.class)

@SpringBootTest

public class WeChatApplicationTests {

    @Test

    public void getToken() {

        // 获得Http客户端(可以理解为:你得先有一个浏览器;注意:实际上HttpClient与浏览器是不一样的)

        CloseableHttpClient httpClient = HttpClientBuilder.create().build();

        String secret = "你的secret";

        String appId = "你的appId";

        // 创建Get请求

        HttpGet httpGet = new HttpGet("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + secret);

        // 响应模型

        CloseableHttpResponse response = null;

        try {

            // 由客户端执行(发送)Get请求

            response = httpClient.execute(httpGet);

            // 从响应模型中获取响应实体

            HttpEntity responseEntity = response.getEntity();

            System.out.println("响应状态为:" + response.getStatusLine());

            if (responseEntity != null) {

                System.out.println("响应内容长度为:" + responseEntity.getContentLength());

                System.out.println("响应内容为:" + EntityUtils.toString(responseEntity));

            }

        } catch (ParseException | IOException e) {

            e.printStackTrace();

        } finally {

            try {

                // 释放资源

                if (httpClient != null) {

                    httpClient.close();

                }

                if (response != null) {

                    response.close();

                }

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

    }

}