微信初始化得到的数据是空的

Question

我用java去封装一些微信的接口，当扫码登录以后，微信会返回skey wxsid wxuin这三个东西，然后再把这三个东西post出去，就可以拿到用户信息

String BaseRequest = "{\"BaseRequest\":{\"Uin\":\""+wxuin+"\",\"Sid\":\""+wxsid+"\",\"Skey\":\""+skey+"\",\"DeviceID\":\"e159973572418266\"}}";

    res = Http.sendPost("https://wx2.qq.com/cgi-bin/mmwebwx-bin/webwxinit",BaseRequest);

可是这样post以后返回的数据却是这样的

{
    "BaseResponse": {
        "Ret": 1100,
        "ErrMsg": ""
    },
    "Count": 0,
    "ContactList": [],
    "SyncKey": {
        "Count": 0,
        "List": []
    },
    "User": {
        "Uin": 0,
        "UserName": "",
        "NickName": "",
        "HeadImgUrl": "",
        "RemarkName": "",
        "PYInitial": "",
        "PYQuanPin": "",
        "RemarkPYInitial": "",
        "RemarkPYQuanPin": "",
        "HideInputBarFlag": 0,
        "StarFriend": 0,
        "Sex": 0,
        "Signature": "",
        "AppAccountFlag": 0,
        "VerifyFlag": 0,
        "ContactFlag": 0,
        "WebWxPluginSwitch": 0,
        "HeadImgFlag": 0,
        "SnsFlag": 0
    },
    "ChatSet": "",
    "SKey": "",
    "ClientVersion": 0,
    "SystemTime": 0,
    "GrayScale": 0,
    "InviteStartCount": 0,
    "MPSubscribeMsgCount": 0,
    "MPSubscribeMsgList": [],
    "ClickReportInterval": 0
}

我用的post方法如下

//用来发送json
    public  static String sendPost(String url,String Params)throws IOException{
        OutputStreamWriter out = null;
        BufferedReader reader = null;
        String response="";
        try {
            URL httpUrl = null; //HTTP URL类 用这个类来创建连接
            //创建URL
            httpUrl = new URL(url);
            //建立连接
            HttpURLConnection conn = (HttpURLConnection) httpUrl.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/json");
            conn.setRequestProperty("connection", "keep-alive");
            conn.setUseCaches(false);//设置不要缓存
            conn.setInstanceFollowRedirects(true);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.connect();
            //POST请求
            out = new OutputStreamWriter(
                    conn.getOutputStream());
            out.write(Params);
            out.flush();
            //读取响应
            reader = new BufferedReader(new InputStreamReader(
                    conn.getInputStream()));
            String lines;
            while ((lines = reader.readLine()) != null) {
                lines = new String(lines.getBytes(), "utf-8");
                response+=lines;
            }
            reader.close();
            // 断开连接
            conn.disconnect();

            //log.info(response.toString());
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(reader!=null){
                    reader.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }

        return response;
    }

Answer 1

BaseRequest是json，格式不正确

Answer 2

实现web微信通信协议的开源项目jeeves了解一下。