微信自定义菜单这个就比较简单，直接贴代码。
微信说的注意：
目前自定义菜单最多包括3个一级菜单，每个一级菜单最多包含5个二级菜单。一级菜单最多4个汉字，二级菜单最多7个汉字，多出来的部分将会以“...”代替。请注意，创建自定义菜单后，由于微信客户端缓存，需要24小时微信客户端才会展现出来。建议测试时可以尝试取消关注公众账号后再次关注，则可以看到创建后的效果。
1 #region 菜单管理 2 public ActionResult CreateMenu() 3 { 4 string access_token = weixin.AccessToken(); 5 string url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + access_token; 6 string data = ""; 7 8 using (StreamReader sr = new StreamReader(Server.MapPath("/Config/menu.txt"))) 9 { 10 data = sr.ReadToEnd(); 11 } 12 13 14 var json = HttpHelper.Post(url, data); 15 return Content(json); 16 } 17 18 public ActionResult DeleteMenu() 19 { 20 string access_token = weixin.AccessToken(); 21 string url = "https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=" + access_token; 22 23 var json = HttpHelper.Get(url); 24 return Content(json); 25 } 26 #endregion
返回结果
正确时的返回JSON数据包如下：
{"errcode":0,"errmsg":"ok"}错误时的返回JSON数据包如下（示例为无效菜单名长度）：
{"errcode":40018,"errmsg":"invalid button name size"}
menu.txt
{
"button":[
{
"name":"一级标题1",
"sub_button":[
{
"type":"view",
"name":"二级标题1",
"url":"http://xx.xx.com/1.html"
},
{
"type":"view",
"name":"二级标题2",
"url":""
},
{
"type":"view",
"name":"二级标题3",
"url":""
},
{
"type":"view",
"name":"二级标题4",
"url":""
},
{
"type":"view",
"name":"二级标题5",
"url":""
}]
},
{
"type":"view",
"name":"一级标题2",
"url":"http://xx.xx.com/2.html"
},
{
"name":"一级标题3",
"sub_button":[
{
"type":"view",
"name":"二级标题1",
"url":""
},
{
"type":"view",
"name":"二级标题2",
"url":"http://xx.xx.com/3-1.html"
}]
}]
}