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Editor to share with you what are the problems before the development of the official account of php Wechat, I believe most people do not know much about it, so share this article for your reference. I hope you will learn a lot after reading this article. Let's learn about it together.

Wechat Public account Development document, official version (https://mp.weixin.qq.com/wiki)

First of all, you need to have a public platform account. All right, start counting.

The first pit, do not think that it is not the enterprise can not be developed, can apply for a test number, more than the so-called Subscription account interface.

After entering the backend management, click the developer tool to see the public platform test account and go directly to it. Start filling in your own configuration.

Pay attention to the graffiti section, this part of the program must be configured, if not configured, this must not be successful.

The second pit, of course, your configuration must not be successful, do not ask me why. There is no plan to say a few words.

Please do not think that the Penguin Emperor is joking, this is true, it must be port 80, in fact, just publish a domain name website. Because the domain name websites are all out of port 80, let's get to the point.

Penguin Emperor told us that to use Wechat account, we must have a server, and then configure the website we published. Please note that token is set by yourself, this is not automatically generated, set by yourself. URL is the name of the website we released.

The third pit, the website is not released, interface configuration information can never be configured in the past, remember, forever.

The purpose of the secure domain name of the JS API is to download pictures, call the Wechat image API, and so on. For example, when you need to call the camera, or when you need to upload photos, you need the JS security API. Do not elaborate on the specific content for the time being.

In the backend of the test version of Wechat public account, this item in the permission table of the experience API must also be configured. It doesn't have to be configured, but this API can get some information about Wechat users. It is worth reminding that each ID corresponding to each public account is unique, that is, even if the intranet of the website remains unchanged, if the official account is changed, then the data of the official account of Wechat cannot be shared at this time, only unique relative to the public account.

The fourth pit, when applying for Wechat web page authorization, the web page authorized user basic information here, this itself is no problem, but there is a problem without prompting.

The URL here, please note, must not contain www, and there is no backslash, that is to say, the callback format of the URL here is abc.com OK, please remember this format, you must do this. All right, let the server do this for a while, and start talking in code for the time being.

Let's start with server authentication. There is an example of this on the official website, but it is PHP. In fact, to put it bluntly, the first thing is to verify a random number, and then in the case of POST, you can test the return value. Go directly to the code

Public ActionResult Index () {if (Request.HttpMethod.ToLower () = = "post") {if (CheckSignature ()) / / verify that the server passed {GetMenuList (); / / load menu} else {Response.Write ("Oh Let's meet on Mars!") ; Response.End ();}} else {CheckWechat ();} return View ();} / return a random number indicating successful verification / private void CheckWechat () {if (Request.QueryString ["echoStr"]) {Response.Write ("message is not from Wechat"); Response.End ();} string echoStr = Request.QueryString ["echoStr"]; if (CheckSignature ()) {Response.Write (echoStr) Response.End ();}} / verify Wechat signature / sort the three parameters token, timestamp, and nonce in lexicographic order / concatenate the three parameter strings into a string for sha1 encryption / the encrypted string obtained by the developer can be compared with signature to indicate that the request originated from Wechat. Private bool CheckSignature () {string signature = Convert.ToString (Request ["signature"]); string timestamp = Convert.ToString (Request ["timestamp"]); string nonce = Convert.ToString (Request ["nonce"]); string [] ArrTmp = {Token, timestamp, nonce}; Array.Sort (ArrTmp); / / in dictionary order string tmpStr = string.Join ("", ArrTmp); tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile (tmpStr, "SHA1"); tmpStr = tmpStr.ToLower (); if (tmpStr = = signature) {return true } else {return false;}}

Then, the public platform has permission to customize the menu, but once you start customizing the menu, the original manually edited menu is not available, that is, if the server is verified, then you must use your own code to control it.

Let's take a look at the GetMenuList () method, which is actually very simple, with a random JSON format string. Then call the interface of Wechat. Public void GetMenuList ()

{string weixin1 = "" Weixin1 = @ "{"button": [{" type ":" click ","name":" Hello! "," key ":" hello "}, {"type":" view "," name ":" Company profile "," url ":" http://www.xnfhtech.com""}, {"name": "Product introduction" "sub_button": [{"type": "click", "name": "Product 1", "key": "p1"}, {"type": "click", "name": "Product 2", "key": "p2"}]} " String access_token = Tools.WA_GetAccess_Token.IsExistAccess_Token (); string I = this.MenuCreate (menu, access_token); Response.Write (I);}

Public string MenuCreate (string MenuJson, string access_token) {JavaScriptSerializer Jss = new JavaScriptSerializer (); string setMenuUrl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token={0}"; setMenuUrl = string.Format (setMenuUrl, access_token); / / get token, piece together url string respText = WebRequestPostOrGet (setMenuUrl, MenuJson); Dictionary respDic = (Dictionary) Jss.DeserializeObject (respText); return respDic [" errcode "]. ToString () / / return 0 successful release} / Post/get submit call crawl / / Parameter / string public string WebRequestPostOrGet (string sUrl, string sParam) {byte [] bt = System.Text.Encoding.UTF8.GetBytes (sParam); Uri uriurl = new Uri (sUrl); HttpWebRequest req = (HttpWebRequest) HttpWebRequest.Create (uriurl) / / HttpWebRequest req = (HttpWebRequest) HttpWebRequest.Create (url + (url.IndexOf (?) >-1? ":"?) + param); req.Method = "Post"; req.Timeout = 120 * 1000; req.ContentType = "application/x-www-form-urlencoded;"; req.ContentLength = bt.Length; using (Stream reqStream = req.GetRequestStream ()) / / using can free memory {reqStream.Write (bt, 0, bt.Length); reqStream.Flush () in using segment } try {using (WebResponse res = req.GetResponse ()) {/ / process the received page content here Stream resStream = res.GetResponseStream (); StreamReader resStreamReader = new StreamReader (resStream, System.Text.Encoding.UTF8); string resLine; System.Text.StringBuilder resStringBuilder = new System.Text.StringBuilder (); while ((resLine = resStreamReader.ReadLine ())! = null) {resStringBuilder.Append (resLine + System.Environment.NewLine);} resStream.Close (); resStreamReader.Close () Return resStringBuilder.ToString ();}} catch (Exception ex) {return ex.Message;//url error returns}}

Well, I admit that I am a foodie who doesn't know the truth, how come there is another access_token=IsExistAccess_Token (); don't worry, the baby will tell you.

When we read the document, we will find that the Access_Token here expires every two hours. The way here is to get it automatically when it expires.

The fifth pit, the JSON string here, that is, the menu to be displayed, I hope everyone will use lowercase, if you use uppercase, then, hehe, , really, very fucked, he will tell you that you are not encoded with UTF8, but you really have encoded it, but it is a pity that it is still wrong, so it is still lowercase, alas

Continue to say that after two hours of automatic acquisition, it can be output through MenuCreate (calling Wechat menu API). Put the code on.

/ prevent the token of each request from changing for two hours / public class WA_GetAccess_Token {public WA_GetAccess_Token () {} public static WAEntity.Access_token GetAccess_Token () {string url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+ ConfigurationManager.AppSettings [" AppID "] +" & secret= "+ ConfigurationManager.AppSettings [" AppSecret "]; Access_token entity = new Access_token () Try {HttpWebRequest req = (HttpWebRequest) HttpWebRequest.Create (url); req.Method = "GET"; using (WebResponse wr = req.GetResponse ()) {HttpWebResponse myResponse = (HttpWebResponse) req.GetResponse (); StreamReader reader = new StreamReader (myResponse.GetResponseStream (), System.Text.Encoding.UTF8); string content = reader.ReadToEnd (); Access_token token = new Access_token (); token = JsonHelper.ParseFromJson (content); entity.access_token = token.access_token; entity.expires_in = token.expires_in }} catch {/ / log} return entity;} / determine whether the Access_Token expires based on the current date. If the expiration returns a new Access_Token, otherwise return the previous Access_Token / public static string IsExistAccess_Token () {try {string Token = string.Empty; DateTime YouXRQ. / / read the data in the XML file and display string filepath = HttpContext.Current.Request.MapPath ("~ / XMLFile.xml"); StreamReader str = new StreamReader (filepath, System.Text.Encoding.UTF8); XmlDocument xml = new XmlDocument (); xml.Load (str); str.Close (); str.Dispose (); Token = xml.SelectSingleNode ("xml"). SelectSingleNode ("Access_Token"). InnerText; YouXRQ = Convert.ToDateTime (xml.SelectSingleNode ("xml"). SelectSingleNode ("Access_YouXRQ"). InnerText) If (DateTime.Now > YouXRQ) {DateTime _ youxrq = DateTime.Now; WAEntity.Access_token mode = GetAccess_Token (); xml.SelectSingleNode ("xml"). SelectSingleNode ("Access_Token"). InnerText = mode.access_token; _ youxrq = _ youxrq.AddSeconds (Convert.ToInt32 (mode.expires_in)); xml.SelectSingleNode ("xml"). SelectSingleNode ("Access_YouXRQ"). InnerText = _ youxrq.ToString (); xml.Save (filepath); Token = mode.access_token;} return Token } catch (Exception ex) {return "; / / logging}} public class Access_token {public Access_token () {} public string access_token {get; set;} public string expires_in {get; set;} public class JsonHelper {/ generate Json format / public static string GetJson (T obj) {DataContractJsonSerializer json = new DataContractJsonSerializer (obj.GetType ()) Using (MemoryStream stream = new MemoryStream ()) {json.WriteObject (stream, obj); string szJson = Encoding.UTF8.GetString (stream.ToArray ()); return szJson;}} / get Model / public static T ParseFromJson (string szJson) of Json {T obj = Activator.CreateInstance (); using (MemoryStream ms = new MemoryStream (Encoding.UTF8.GetBytes (szJson) {DataContractJsonSerializer serializer = new DataContractJsonSerializer (obj.GetType ()) Return (T) serializer.ReadObject (ms);

Forgive me for not knowing the truth again, what the so-called XMLFile.xml is, well, I don't want to be so straightforward, it's better to go directly to the code.

Get all the contents of the article "what are the problems before the development of php Wechat official account" above 17:56:31 on 2015-9-12? thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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