因为开发微信群发电脑版需要模拟微信POST请求，微信发送消息使用request payload发送，实际发送的是json字符串。我们只需要生成的json字符串和请求的一致,header头完全模拟即可。

下面是正常请求的谷歌请求信息：

下面是我的c#代码

public static bool SendTextMessage(string Content,string ToUserName){    SendMessageUrl +=passticket;    File.WriteAllText(@"D:\URL.txt", SendMessageUrl);    HttpHelper http = new HttpHelper();    Deviceid = DeviceID();    string LocalId = LocalID();    var data = new { BaseRequest = new { Uin = wxuin, Sid = wxsid, Skey = skey, DeviceID = Deviceid }, Msg = new { ClientMsgId = LocalId, Content = @Content, LocalID = LocalId, FromUserName = wxusername, ToUserName = ToUserName, Type = 1 } ,Scene =0};    string json = JsonConvert.SerializeObject(data);    HttpItem item = new HttpItem()    {        URL = SendMessageUrl,        Method = "post",        Accept = "application/json, text/plain, */*",        Postdata = json,        Cookie = HttpCookie,        ContentType = "application/json;charset=UTF-8"    };    item.Header.Add("Accept-Encoding", " gzip");    HttpResult result = http.GetHtml(item);    string html = result.Html;    return true;}

我先创建一个与json格式结构一致的对象,然后序列化为json,php或者java道理一样。请求的header必须保持一致即可。

说白了就是将请求的信息通过.net实例为1个对象，再将对象转为json字符串发送。