String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid="+this.wxAppid+"&secret="+
        this.wxSecret+"&code="+request.getCode()+"&grant_type=authorization_code";


String url = "https://api.weixin.qq.com/sns/userinfo?access_token="+token+"&openid="+openid+"&lang=zh_CN";