// 1.调用getHTMLAccessToken
    JSONObject htmlAccessToken = WeChatUtil.getHTMLAccessToken(code);

    // 2.获取用户授权的微信地址
    public static  final String GET_HTML_ACCESS_TOKEN = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code";

    /** java 项目 www.fhadmin.cn
     * 3.根据code获取access_token
     * @param code
     * @return access_token,open_id
     */

    public static JSONObject getHTMLAccessToken(String code) {

        String replace =GET_HTML_ACCESS_TOKEN.replace("APPID", WeChatResources.APPID).replace("SECRET", WeChatResources.APPSECRET).replace("CODE", code);
        log.info("请求url:{}",replace);
        JSONObject jsonObject = HttpUtil.doGet(replace);
        return jsonObject;
    }

    /**
     * 4.发送请求的doGET方法
     */
        public static JSONObject doGet(String url) {
        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpGet get = new HttpGet(url);
        JSONObject jsonObject = null;

        try {
            HttpResponse response = httpClient.execute(get);
            HttpEntity entity = response.getEntity();
            if (null != entity) {
                String result = EntityUtils.toString(entity);
                jsonObject = JSONObject.fromObject(result);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return jsonObject;
    }

//  5.方法响应成功后获取access_token和openid
Object access_token = htmlAccessToken.get("access_token");
Object openid = htmlAccessToken.get("openid");
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    //1.根据access_token,open_id获取用户信息  从而完成微信的授权登入
    JSONObject userInfo = WeChatUtil.getUserInfo(access_token, openid);

    //2.获取用户信息 openid
    public static  final String GET_USER_INFO = "https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID&lang=zh_CN";

     /**java 项目 www.fhadmin.cn
     * 3.根据access_token,open_id获取用户信息
     * @return
     */
    public static JSONObject getUserInfo(Object access_token,Object open_id){

        String replace = GET_USER_INFO.replace("ACCESS_TOKEN", access_token.toString()).replace("OPENID", open_id.toString());
        JSONObject jsonObject = HttpUtil.doGet(replace);
        return jsonObject;
    }
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