✨新增微信公众号功能

2023-07-19 07:29:49 +08:00
parent f4174ccdc8
commit 80ad903e52
6 changed files with 191 additions and 14 deletions
--- a/ZR.Common/WxHelper.cs
+++ b/ZR.Common/WxHelper.cs
@@ -0,0 +1,119 @@
+using Infrastructure;
+using Infrastructure.Extensions;
+using Newtonsoft.Json;
+using System;
+using System.Security.Cryptography;
+using System.Text;
+using ZR.Common.Model;
+
+namespace ZR.Common
+{
+    public class WxHelper
+    {
+        private static readonly string GetTokenUrl = "https://api.weixin.qq.com/cgi-bin/token";
+        private static readonly string GetTicketUrl = "https://api.weixin.qq.com/cgi-bin/ticket/getticket";
+        private static readonly string AppID = AppSettings.App(new string[] { "WxOpen", "AppID" });
+        private static readonly string AppSECRET = AppSettings.App(new string[] { "WxOpen", "AppSecret" });
+
+        /// <summary>
+        /// 获取访问token
+        /// </summary>
+        /// <returns>           
+        /// {"errcode":0,"errmsg":"ok","access_token":"iCbcfE1OjfRhV0_io-CzqTNC0lnrudeW3oF5rhJKfmINaxLClLa1FoqAY_wEXtodYh_DTnrtAwZfzeb-NRXvwiOoqUTHx3i6QKLYcfBtF8y-xd5mvaeaf3e9mvTAPhmX0lkm1cLTwRLmoa1IwzgQ-QZEZcuIcntWdEMGseVYok3BwCGpC87bt6nNdgnekZdFVRp1uuaxoctDGlXpoQlQsA","expires_in":7200}
+        /// </returns>
+        private static WxTokenResult GetAccessToken()
+        {
+            if (AppID.IsEmpty() || AppSECRET.IsEmpty())
+            {
+                Console.WriteLine("公众号配置错误");
+                throw new ArgumentException("公众号配置错误");
+            };
+            var Ck = "wx_token";
+            string getTokenUrl = $"{GetTokenUrl}?grant_type=client_credential&appid={AppID}&secret={AppSECRET}";
+            if (CacheHelper.Get(Ck) is WxTokenResult tokenResult)
+            {
+                return tokenResult;
+            }
+            else
+            {
+                string result = HttpHelper.HttpGet(getTokenUrl);
+
+                tokenResult = JsonConvert.DeserializeObject<WxTokenResult>(result);
+
+                if (tokenResult?.errcode == 0)
+                {
+                    CacheHelper.SetCache(Ck, tokenResult, 110);
+                }
+                else
+                {
+                    Console.WriteLine("GetAccessToken失败,结果=" + result);
+                    throw new Exception("获取AccessToken失败");
+                }
+            }
+            return tokenResult;
+        }
+
+        /// <summary>
+        /// 获取ticket
+        /// </summary>
+        /// <returns></returns>
+        public static WxTokenResult GetTicket()
+        {
+            WxTokenResult token = GetAccessToken();
+            string ticket = token?.access_token;
+            var Ck = "wx_ticket";
+            string getTokenUrl = $"{GetTicketUrl}?access_token={ticket}&type=jsapi";
+            if (CacheHelper.Get(Ck) is WxTokenResult tokenResult)
+            {
+                return tokenResult;
+            }
+            else
+            {
+                string result = HttpHelper.HttpGet(getTokenUrl);
+                tokenResult = JsonConvert.DeserializeObject<WxTokenResult>(result);
+
+                if (tokenResult?.errcode == 0)
+                {
+                    CacheHelper.SetCache(Ck, tokenResult, 110);
+                }
+                else
+                {
+                    Console.WriteLine("GetTicket，结果=" + result);
+                    throw new Exception("获取ticket失败");
+                }
+            }
+            return tokenResult;
+        }
+
+        /// <summary>
+        /// 返回正确的签名
+        /// </summary>
+        /// <param name="jsapi_ticket"></param>
+        /// <param name="timestamp"></param>
+        /// <param name="noncestr"></param>
+        /// <param name="url"></param>
+        /// <returns></returns>
+        public static string GetSignature(string jsapi_ticket, string timestamp, string noncestr, string url = null)
+        {
+            if (string.IsNullOrEmpty(jsapi_ticket) || string.IsNullOrEmpty(noncestr) || string.IsNullOrEmpty(timestamp) || string.IsNullOrEmpty(url))
+                return null;
+
+            //将字段添加到列表中。
+            string[] arr = new[]
+            {
+                 string.Format("jsapi_ticket={0}",jsapi_ticket),
+                 string.Format("noncestr={0}",noncestr),
+                 string.Format("timestamp={0}",timestamp),
+                 string.Format("url={0}",url)
+             };
+            //字典排序
+            Array.Sort(arr);
+            //使用URL键值对的格式拼接成字符串
+            var temp = string.Join("&", arr);
+            
+            var sha1Arr = SHA1.HashData(Encoding.UTF8.GetBytes(temp));
+
+            return BitConverter.ToString(sha1Arr).Replace("-", "").ToLower();
+        }
+    }
+}