微信開發(fā)-ACCESSTOKEN過期失效怎么辦-創(chuàng)新互聯(lián)
這篇文章主要介紹微信開發(fā)-ACCESS TOKEN過期失效怎么辦，文中介紹的非常詳細(xì)，具有一定的參考價值，感興趣的小伙伴們一定要看完！
微信開發(fā)-ACCESS TOKEN 過期失效解決方案
起因：因為access_token的重要性，開發(fā)過微信的都知道，但是他有自己的生命周期,官方解釋為:"有效期為7200秒",一天調(diào)用2000次。流量一高，就over了，沒辦法，龍哥不幫我們解決問題，我們就要自己解決，不能等死。
解決思路很簡單：建立公共access token數(shù)據(jù)，有效期內(nèi)不重新創(chuàng)建access_token。
解決方案：
1、微信類庫：有效期內(nèi)直接讀取access token數(shù)據(jù)文件中的json數(shù)據(jù)，過期失效，重新獲取并創(chuàng)建新的access token數(shù)據(jù)文件
2、數(shù)據(jù)文件：存放有效的access token數(shù)據(jù)，具體有：access_token.json和jsapi_ticket.json
核心代碼如下：
Index: wxjsSDK.cs
===================================================================
--- wxjsSDK.cs (revision 0)
+++ wxjsSDK.cs (revision 1)
@@ -0,0 +1,209 @@
+using System;
+using System.Collections.Generic;
+using System.Web;
+using System.IO;
+using System.Security.Cryptography;
+using System.Runtime.Serialization.Json;
+using System.Runtime.Serialization;
+using System.Net;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.Text;
+
+namespace JR.Common
+{
+ public class wxjsSDK
+ {
+ private string appId;
+ private string appSecret;
+
+
+ public wxjsSDK(string appId, string appSecret)
+ {
+ this.appId = appId;
+ this.appSecret = appSecret;
+ }
+
+
+
+ //得到數(shù)據(jù)包，返回使用頁面
+ public System.Collections.Hashtable getSignPackage()
+ {
+ string jsapiTicket = getJsApiTicket();
+ string url = HttpContext.Current.Request.Url.ToString(); //"http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
+ string timestamp = Convert.ToString(ConvertDateTimeInt(DateTime.Now));
+ string nonceStr = createNonceStr();
+ // 這里參數(shù)的順序要按照 key 值 ASCII 碼升序排序
+ string rawstring = "jsapi_ticket=" + jsapiTicket + "&noncestr=" + nonceStr + "×tamp=" + timestamp + "&url=" + url + "";
+ string signature = SHA1_Hash(rawstring);
+ var signPackage = new System.Collections.Hashtable();
+ signPackage.Add("appId", appId);
+ signPackage.Add("nonceStr", nonceStr);
+ signPackage.Add("timestamp", timestamp);
+ signPackage.Add("url", url);
+ signPackage.Add("signature", signature);
+ signPackage.Add("rawString", rawstring);
+ return signPackage;
+ }
+
+
+ //創(chuàng)建隨機字符串
+ private string createNonceStr()
+ {
+ int length = 16;
+ string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/upload/otherpic43/";
+ string str = "";
+ var rad = new Random();
+ for (int i = 0; i < length; i++)
+ {
+ str += chars.Substring(rad.Next(0, chars.Length - 1), 1);
+ }
+ return str;
+ }
+
+
+ //得到ticket 如果文件里時間 超時則重新獲取
+ private string getJsApiTicket()
+ {
+ string ticket = "";
+ // jsapi_ticket 應(yīng)該全局存儲與更新，以下代碼以寫入到文件中做示例
+ string path = HttpContext.Current.Server.MapPath(@"/log/jssdk/jsapi_ticket.json");
+ if (!File.Exists(path))
+ {
+ File.Create(path).Close();
+ }
+ StreamReader sr = new StreamReader(path, System.Text.Encoding.Default);
+ string filecontent = sr.ReadToEnd();
+ CommonJsonModel jsonModel = null;
+ if (!string.IsNullOrEmpty(filecontent))
+ {
+ jsonModel = new CommonJsonModel(filecontent);
+ }
+ sr.Close();
+ sr.Dispose();
+ if (jsonModel == null || int.Parse(jsonModel.GetValue("expires_in")) < ConvertDateTimeInt(DateTime.Now))
+ {
+ string accessToken = getAccessToken();
+ string url = "/tupian/20230522/getticket
+ jsonModel = new CommonJsonModel(httpGet(url));
+ ticket = jsonModel.GetValue("ticket");
+ if (ticket != "")
+ {
+ string json = "{\"ticket\":\"" + ticket + "\",\"expires_in\":" + (ConvertDateTimeInt(DateTime.Now) + 7000) + "}";
+ StreamWriterMetod(json, path);
+ }
+ }
+ else
+ {
+ ticket = jsonModel.GetValue("ticket");
+ }
+ return ticket;
+ }
+
+
+ //得到accesstoken 如果文件里時間 超時則重新獲取
+ private string getAccessToken()
+ {
+ // access_token 應(yīng)該全局存儲與更新，以下代碼以寫入到文件中做示例
+ string access_token = "";
+ string path = HttpContext.Current.Server.MapPath(@"/log/jssdk/access_token.json");
+ if (!File.Exists(path))
+ {
+ File.Create(path).Close();
+ }
+ StreamReader sr = new StreamReader(path, System.Text.Encoding.Default);
+ string filecontent = sr.ReadToEnd();
+ CommonJsonModel jsonModel = null;
+ if (!string.IsNullOrEmpty(filecontent))
+ {
+ jsonModel = new CommonJsonModel(filecontent);
+ }
+ sr.Close();
+ sr.Dispose();
+ if (jsonModel == null || int.Parse(jsonModel.GetValue("expires_in")) < ConvertDateTimeInt(DateTime.Now))
+ {
+ string url = "/tupian/20230522/token
+ "&secret=" + appSecret + "";
+ jsonModel = new CommonJsonModel(httpGet(url));
+ access_token = jsonModel.GetValue("access_token");
+ if (access_token != "")
+ {
+ string json = "{\"access_token\":\"" + access_token + "\",\"expires_in\":" + (ConvertDateTimeInt(DateTime.Now) + 7000) + "}";
+ StreamWriterMetod(json, path);
+ }
+ }
+ else
+ {
+ access_token = jsonModel.GetValue("access_token");
+ }
+ return access_token;
+ }
+
+
+ //發(fā)起一個http請球，返回值
+ private string httpGet(string url)
+ {
+ try
+ {
+ var MyWebClient = new WebClient();
+ MyWebClient.Credentials = CredentialCache.DefaultCredentials; //獲取或設(shè)置用于向Internet資源的請求進(jìn)行身份驗證的網(wǎng)絡(luò)憑據(jù)
+ Byte[] pageData = MyWebClient.DownloadData(url); //從指定網(wǎng)站下載數(shù)據(jù)
+ string pageHtml = System.Text.Encoding.Default.GetString(pageData);//如果獲取網(wǎng)站頁面采用的是GB2312，則使用這句
+ //string pageHtml = Encoding.UTF8.GetString(pageData); //如果獲取網(wǎng)站頁面采用的是UTF-8，則使用這句
+ return pageHtml;
+ }
+ catch (WebException webEx)
+ {
+ Console.WriteLine(webEx.Message.ToString());
+ return null;
+ }
+ }
+
+
+ //SHA1哈希加密算法
+ private string SHA1_Hash(string str_sha1_in)
+ {
+ SHA1 sha1 = new SHA1CryptoServiceProvider();
+ byte[] bytes_sha1_in = System.Text.UTF8Encoding.Default.GetBytes(str_sha1_in);
+ byte[] bytes_sha1_out = sha1.ComputeHash(bytes_sha1_in);
+ string str_sha1_out = BitConverter.ToString(bytes_sha1_out);
+ str_sha1_out = str_sha1_out.Replace("-", "").ToLower();
+ return str_sha1_out;
+ }
+
+
+ /// <summary>
+ /// StreamWriter寫入文件方法
+ /// </summary>
+ private void StreamWriterMetod(string str, string patch)
+ {
+ FileStream stream = new FileStream(patch, FileMode.OpenOrCreate, FileAccess.Write, FileShare.Delete | FileShare.ReadWrite);
+ StreamWriter writer = new StreamWriter(stream);
+ writer.WriteLine(str);
+ stream.Flush();
+ writer.Close();
+ stream.Close();
+ stream.Dispose();
+ writer.Dispose();
+ }
+
+
+
+
+ /// <summary>
+ /// 將c# DateTime時間格式轉(zhuǎn)換為Unix時間戳格式
+ /// </summary>
+ /// <param name="time">時間</param>
+ /// <returns>double</returns>
+ private int ConvertDateTimeInt(System.DateTime time)
+ {
+ int intResult = 0;
+ System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
+ intResult = Convert.ToInt32((time - startTime).TotalSeconds);
+ return intResult;
+ }
+
+
+ }
+
+
+}
access_token.json
{"access_token":"4H14BVCUrAxxxxxxxxxxxxWeLu-zKETaBYqsoKFjsHZDc3xOwc-m43WDw2HjzxEkng2nC7iJuHydNt5PqRDY7HCoAU4lmuaPoYsIQHdW9kA","expire_time":1428599121}
access_token.json
{"jsapi_ticket":"bxLdikRXVbTPdHSM05e5u1wgoccccccccccccccccccccccccccccc11FFzYsiqbXZN0SDGN6Dnksnt2Q","expire_time":1428599122}以上是“微信開發(fā)-ACCESS TOKEN過期失效怎么辦”這篇文章的所有內(nèi)容，感謝各位的閱讀！希望分享的內(nèi)容對大家有幫助，更多相關(guān)知識，歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道！
標(biāo)題名稱：微信開發(fā)-ACCESSTOKEN過期失效怎么辦-創(chuàng)新互聯(lián)
標(biāo)題來源：http://www.chinadenli.net/article30/djdiso.html
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