微信开发-Jssdk调用分享实例

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.IO;using Newtonsoft.Json;using System.Net;using System.Runtime.Serialization.Formatters.Binary;using System.Text;using System.Security.Cryptography;/// <summary>/// WXJSSDK 的摘要说明/// </summary>public class WXJSSDK{private string appId;private string appSecret;private DataTable DT;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();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 + "&timestamp=" + timestamp + "&url=" + url + "";string signature = SHA1_Hash(rawstring);System.Collections.Hashtable 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 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";string str = "";Random 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//注：jsapi_ticket使用规则（有过期时间）类似access_token, oauth的access_token与基础access_token不同private string getJsApiTicket(){//这里我从数据库读取DT = DbSession.Default.FromSql("select jsapi_ticket,ticket_expires from table where ID=1").ToDataTable();int expire_time = (int)DT.Rows[0]["ticket_expires"];string ticket = DT.Rows[0]["jsapi_ticket"].ToString();string accessToken =getAccessToken();//获取系统的全局tokenif (expire_time < ConvertDateTimeInt(DateTime.Now)){string url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=" + accessToken + "";Jsapi api =JsonConvert.DeserializeObject<Jsapi>(httpGet(url));ticket = api.ticket;if (ticket != ""){expire_time = ConvertDateTimeInt(DateTime.Now) + 7000;//存入数据库操作}}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(@"/weixin/access_token.json");//FileStream file = new FileStream(path, FileMode.Open);//var serializer = new DataContractJsonSerializer(typeof(AccToken));//AccToken readJSTicket = (AccToken)serializer.ReadObject(file);//file.Close();//if (readJSTicket.expires_in < ConvertDateTimeInt(DateTime.Now))//{//string url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + appSecret + "";//AccToken iden = Desrialize<AccToken>(new AccToken(), httpGet(url));//access_token = iden.access_token;//if (access_token != "")//{//iden.expires_in = ConvertDateTimeInt(DateTime.Now) + 7000;//iden.access_token = access_token;//string json = Serialize<AccToken>(iden);//StreamWriterMetod(json, path);//}//}//else//{//access_token = readJSTicket.access_token;//}//return access_token;//}//发起一个http请球，返回值private string httpGet(string url){try{WebClient 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return pageHtml;}catch (WebException webEx){Console.WriteLine(webEx.Message.ToString());return null;}}//SHA1哈希加密算法public 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写入文件方法/// </summary>private void StreamWriterMetod(string str, string patch){try{FileStream fsFile = new FileStream(patch, FileMode.OpenOrCreate);StreamWriter swWriter = new StreamWriter(fsFile);swWriter.WriteLine(str);swWriter.Close();}catch (Exception e){throw e;}}/// <summary>/// 将c# DateTime时间格式转换为Unix时间戳格式/// </summary>/// <param name="time">时间</param>/// <returns>double</returns>public 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;}}//创建Json序列化 及反序列化类目#region//创建JSon类 保存文件 jsapi_ticket.jsonpublic class JSTicket{public string jsapi_ticket { get; set; }public double expire_time { get; set; }}//创建 JSon类 保存文件 access_token.jsonpublic class AccToken{public string access_token { get; set; }public double expires_in { get; set; }}//创建从微信返回结果的一个类 用于获取ticketpublic class Jsapi{public int errcode { get; set; }public string errmsg { get; set; }public string ticket { get; set; }public string expires_in { get; set; }}#endregion上面是写好的类，接下来直接调用后对应输出给jsWXJSSDK jssdk = new WXJSSDK(AppId,AppSecret);Hashtable hs = jssdk.getSignPackage();string signature = hs["signature"].ToString();string signature = hs["signature"].ToString();string timestamp = hs["timestamp"].ToString();string nonce = hs["nonceStr"].ToString();接着js调用：<script type="text/javascript">var dataForWeixin = {appId: "<%=appid%>",MsgImg: "<%=WeChatImg%>",TLImg: "<%=WeChatImg%>",url: "<%=url%>",title: "<%=Title%>",desc: "<%=desc%>",timestamp: '<%=timestamp%>',nonceStr: '<%=nonce%>',signature: '<%=signature%>',jsApiList: ['onMenuShareTimeline', 'onMenuShareAppMessage', 'onMenuShareQQ', 'onMenuShareWeibo'],fakeid: "",callback: function () { }};wx.config({debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。appId: dataForWeixin.appId, // 必填，公众号的唯一标识timestamp: dataForWeixin.timestamp, // 必填，生成签名的时间戳nonceStr: dataForWeixin.nonceStr, // 必填，生成签名的随机串signature: dataForWeixin.signature,// 必填，签名，见附录1jsApiList: dataForWeixin.jsApiList// 必填，需要使用的JS接口列表，所有JS接口列表见附录2});wx.ready(function () {//在此输入各种API//分享到朋友圈wx.onMenuShareTimeline({title: dataForWeixin.title, // 分享标题link: dataForWeixin.url, // 分享链接imgUrl: dataForWeixin.MsgImg, // 分享图标success: function () {// 用户确认分享后执行的回调函数},cancel: function () {// 用户取消分享后执行的回调函数}});//分享给朋友wx.onMenuShareAppMessage({title: dataForWeixin.title, // 分享标题desc: dataForWeixin.desc, // 分享描述link: dataForWeixin.url, // 分享链接imgUrl: dataForWeixin.TLImg, // 分享图标type: '', // 分享类型,music、video或link，不填默认为linkdataUrl: '', // 如果type是music或video，则要提供数据链接，默认为空success: function () {// 用户确认分享后执行的回调函数},cancel: function () {// 用户取消分享后执行的回调函数}});//QQwx.onMenuShareQQ({title: dataForWeixin.title, // 分享标题desc: dataForWeixin.desc, // 分享描述link: dataForWeixin.url, // 分享链接imgUrl: dataForWeixin.MsgImg,// 分享图标success: function () {// 用户确认分享后执行的回调函数},cancel: function () {// 用户取消分享后执行的回调函数}});//QQ微博wx.onMenuShareWeibo({title: dataForWeixin.title, // 分享标题desc: dataForWeixin.desc, // 分享描述link: dataForWeixin.url, // 分享链接imgUrl: dataForWeixin.TLImg, // 分享图标success: function () {// 用户确认分享后执行的回调函数},cancel: function () {// 用户取消分享后执行的回调函数}});// config信息验证后会执行ready方法，所有接口调用都必须在config接口获得结果之后，config是一个客户端的异步操作，//所以如果需要在页面加载时就调用相关接口，则须把相关接口放在ready函数中调用来确保正确执行。对于用户触发时才调用的接口，则可以直接调用，不需要放在ready函数中。});wx.error(function (res) {//alert(res);// config信息验证失败会执行error函数，如签名过期导致验证失败，具体错误信息可以打开config的debug模式查看，也可以在返回的res参数中查看，对于SPA可以在这里更新签名。});</script>

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