package com.zc.business.controller;


import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
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.HttpClients;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
/**
 * @author 王思祥
 * @ClassName DcWarningPush 微博推送
 */

public class WeiboAuthUtil {
    //1.登录传入重定向的url,用户授权后返回授权的code，2.使用code取得认证权限token 3.调用接口参数
     //1.登录获取用户的回调code
    private static final String APP_KEY = "你的App Key";
    private static final String AUTH_URL = "https://api.weibo.com/oauth2/authorize";
    private static final String APP_SECRET = "你的App Secret";
    private static final String REDIRECT_URI = "你的回调URL";
    //获取授权后的code
    public  String tokenCode(){
        String url="https://api.weibo.com/oauth2/authorize?client_id="+APP_KEY+"&redirect_uri="+AUTH_URL;
        String token=null;
        try {
            URL urlGet = new URL(url);  //创建链接
            HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
            http.setRequestMethod("GET");
            http.setDoInput(true);   //打开获取返回数据
            http.connect();  //发送链接
            InputStream is = http.getInputStream(); //
            int size = is.available();
            byte[] jsonBytes = new byte[size];
            is.read(jsonBytes);
            token = new String(jsonBytes, "UTF-8");
            System.err.println(token);
            JSONObject jsonObject = JSONObject.parseObject(token);
            is.close();
            return jsonObject.get("code").toString();
        }catch (Exception e){
            e.printStackTrace();
        }
        return "";
    }
    //获取toke
    public String token(String code)throws IOException {
        HttpClient httpClient = HttpClients.createDefault();
        String tokenUrl = REDIRECT_URI + "?client_id=" + APP_KEY
                + "&client_secret=" + APP_SECRET
                + "&grant_type=authorization_code"
                + "&code=" + code
                + "&redirect_uri=" + URLEncoder.encode(REDIRECT_URI, "UTF-8");
        HttpGet httpGet = new HttpGet(tokenUrl);
        HttpResponse response = httpClient.execute(httpGet);
        HttpEntity entity = response.getEntity();
        if (entity != null) {
            String responseBody = EntityUtils.toString(entity, "UTF-8");
            org.json.JSONObject jsonObject = new org.json.JSONObject(responseBody);
            return jsonObject.optString("access_token");
        }
        return null;
    }

    //执行调用推送api
    public static void main(String[] args) throws Exception {
        WeiboAuthUtil weiboAuthUtil = new WeiboAuthUtil();
        String code = weiboAuthUtil.tokenCode();
        String accessToken = weiboAuthUtil.token(code);//认证后的code放入,获取token
        // 创建HttpClient实例
        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            // 构建请求URL，这里以获取用户信息为例
            String url = "https://api.weibo.com/2/users/show.json?access_token=" + accessToken + "&uid=用户UID";
            // 创建HttpGet请求
            HttpGet httpGet = new HttpGet(url);
            // 执行请求并获取响应
            try (CloseableHttpResponse response = httpClient.execute(httpGet)) {
                HttpEntity entity = response.getEntity();
                if (entity != null) {
                    // 读取响应内容
                    String responseString = EntityUtils.toString(entity, "UTF-8");
                    System.out.println(responseString);
                }
            }
        }
    }
}