初始化CRICS

Common/WeiXinHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Net;
+using System.Configuration;
+using Newtonsoft.Json;
+
+namespace Common
+{
+	public sealed class WeiXinHelper
+	{
+		public static string AppId 
+		{
+			get { return ConfigurationManager.AppSettings["WeiXinAppId"]; }
+		}
+
+		public static string AppSecret
+		{
+			get { return ConfigurationManager.AppSettings["WeiXinAppSecret"]; }
+		}
+
+		public static WeiXinAccessToken GetAccessToken()
+		{
+			string accessTokenUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + AppId + "&secret=" + AppSecret;
+
+            using (WebClient client = new WebClient())
+            {
+                string result = client.DownloadString(accessTokenUrl);
+                return JsonConvert.DeserializeObject<WeiXinAccessToken>(result);
+            }
+		}
+
+		public static WeiXinJsApiTicket GetJsApiTicket(string accessToken)
+		{
+			string jsApiTicketUrl = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + accessToken + "&type=jsapi";
+
+            using (WebClient client = new WebClient())
+            {
+                string result = client.DownloadString(jsApiTicketUrl);
+                return JsonConvert.DeserializeObject<WeiXinJsApiTicket>(result);
+            }
+		}
+
+		public static string CreateJsApiSignature(string jsApiTicket, string noncestr, int timestamp, string url)
+		{
+			string str = "jsapi_ticket=" + jsApiTicket + "&noncestr=" + noncestr + "&timestamp=" + timestamp + "&url=" + url;
+
+			byte[] data = Encoding.Default.GetBytes(str);
+
+			byte[] hashcode = System.Security.Cryptography.SHA1.Create().ComputeHash(data);
+
+			return BitConverter.ToString(hashcode).Replace("-", "").ToLower();
+		}
+
+		public static string CreateNonceStr(uint length = 16)
+		{
+			string noncestr = "";
+
+			string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+			Random rand = new Random((int)DateTime.Now.Ticks);
+
+			for (int i = 0; i < length; i++)
+			{
+				noncestr += chars[rand.Next(chars.Length - 1)];
+			}
+
+			return noncestr;
+		}
+
+		public static int GetCurrentTimeStamp()
+		{
+			System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
+			return (int)(DateTime.Now - startTime).TotalSeconds;
+		}
+	}
+
+	public class WeiXinResult
+	{
+		[JsonProperty("errcode")]
+		public int ErrorCode { get; set; }
+
+		[JsonProperty("errmsg")]
+		public string ErrorMsg { get; set; }
+	}
+
+	public class WeiXinAccessToken : WeiXinResult
+	{
+		[JsonProperty("access_token")]
+		public string AccessToken { get; set; }
+
+		[JsonProperty("expires_in")]
+		public int ExpiresIn { get; set; }
+	}
+
+	public class WeiXinJsApiTicket : WeiXinResult
+	{
+		[JsonProperty("ticket")]
+		public string Ticket { get; set; }
+
+		[JsonProperty("expires_in")]
+		public int ExpiresIn { get; set; }
+	}
+}