官方文档：https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421141013&token=&lang=zh_CN

创建自定义菜单：

MVC中的接口方法为：

public void CreateMenu()
{
string access_token = AdminUtil.GetAccessToken();
string posturl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + access_token;
string menuStr = "";// " 菜单结构";
using (StreamReader sr = new StreamReader(HttpContext.Server.MapPath("/Impl/MyMenu.json")))
{
menuStr = sr.ReadToEnd();
}
string responseResult = HttpRequestUtil.RequestUrlSendMsg(posturl, "POST", menuStr);
Response.Write(responseResult);
}

MyMenu.json文件为：

{
"button": [
{
"name": "资讯服务",
"sub_button": [
{
"type": "view",
"name": "营业网点查询1",
"url": "http://www.soso.com/"
},

            {  
                "type": "view",  
                "name": "还款计算器",  
                "url": "http://v.qq.com/"  
            }  
        \]  
    },  
    {  
        "name": "业务中心",  
        "sub\_button": \[  
            {  
                "type": "view",  
                "name": "担保业务办理",  
                "url": "http://www.soso.com/"  
            },  
            {  
                "type": "click",  
                "name": "公积金担保查询",  
                "key": "V1001\_01"  
            }  
        \]  
    },  
    {  
        "name": "个人中心",  
        "sub\_button": \[  
            {  
                "type": "view",  
                "name": "优惠券管理",  
                "url": "http://www.soso.com/"  
            },  
            {  
                "type": "view",  
                "name": "房产中心",  
                "url": "http://v.qq.com/"  
            }  
        \]  
    }  
\]  

}

HttpRequestUtil类中的代码

#region 请求Url，发送json数据
///

/// 请求Url，发送json数据 ///

public static string RequestUrlSendMsg(string url, string method,string JSONData)
{
byte[] bytes = Encoding.UTF8.GetBytes(JSONData);
// 设置参数
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
CookieContainer cookieContainer = new CookieContainer();
request.CookieContainer = cookieContainer;
request.AllowAutoRedirect = true;
request.Method = method;
request.ContentType = "text/html";
request.Headers.Add("charset", "utf-8");
Stream reqstream = request.GetRequestStream();
reqstream.Write(bytes, 0, bytes.Length);
//声明一个HttpWebRequest请求
request.Timeout = 90000;
//设置连接超时时间
request.Headers.Set("Pragma", "no-cache");
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream responseStream = response.GetResponseStream();
StreamReader sr = new StreamReader(responseStream, Encoding.Default);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
return content;
}
#endregion