微信开发-ACCESSTOKEN过期失效怎么办-创新互联
这篇文章主要介绍微信开发-ACCESS TOKEN过期失效怎么办,文中介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们一定要看完!
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起因:因为access_token的重要性,开发过微信的都知道,但是他有自己的生命周期,官方解释为:"有效期为7200秒",一天调用2000次。流量一高,就over了,没办法,龙哥不帮我们解决问题,我们就要自己解决,不能等死。
解决思路很简单:建立公共access token数据,有效期内不重新创建access_token。
解决方案:
1、微信类库:有效期内直接读取access token数据文件中的json数据,过期失效,重新获取并创建新的access token数据文件
2、数据文件:存放有效的access token数据,具体有:access_token.json和jsapi_ticket.json
核心代码如下:
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; + } + + + + //得到数据包,返回使用页面 + 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(); + // 这里参数的顺序要按照 key 值 ASCII 码升序排序 + 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; + } + + + //创建随机字符串 + 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 如果文件里时间 超时则重新获取 + private string getJsApiTicket() + { + string ticket = ""; + // jsapi_ticket 应该全局存储与更新,以下代码以写入到文件中做示例 + 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 如果文件里时间 超时则重新获取 + private string getAccessToken() + { + // access_token 应该全局存储与更新,以下代码以写入到文件中做示例 + 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; + } + + + //发起一个http请球,返回值 + private string httpGet(string url) + { + try + { + var MyWebClient = new WebClient(); + MyWebClient.Credentials = CredentialCache.DefaultCredentials; //获取或设置用于向Internet资源的请求进行身份验证的网络凭据 + Byte[] pageData = MyWebClient.DownloadData(url); //从指定网站下载数据 + string pageHtml = System.Text.Encoding.Default.GetString(pageData);//如果获取网站页面采用的是GB2312,则使用这句 + //string pageHtml = Encoding.UTF8.GetString(pageData); //如果获取网站页面采用的是UTF-8,则使用这句 + 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; + } + + + ///+ /// StreamWriter写入文件方法 + /// + 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(); + } + + + + + ///+ /// 将c# DateTime时间格式转换为Unix时间戳格式 + /// + /// 时间 + ///double + 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}
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标题名称:微信开发-ACCESSTOKEN过期失效怎么办-创新互联
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