feat: 添加微信应用模块，支持微信支付及微信小程序对接（功能产品已上线验证）

Yi.Furion.Net6/Yi.Framework.Module/WeChat/Token/DefaultWeChatToken.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http.Json;
+using System.Text;
+using System.Threading.Tasks;
+using Furion.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Yi.Framework.Module.WeChat;
+using Yi.Framework.Module.WeChat.Extensions;
+using Yi.Framework.Module.WeChat.Model;
+using Yi.Framework.Module.WeChat.Token;
+
+namespace Zeng.CarMovingAssistant.Application.CarMoving.Services.Impl
+{
+    public class DefaultWeChatToken : IWeChatToken,ITransient
+    {
+        private WeChatOptions _options;
+        public DefaultWeChatToken(IOptions<WeChatOptions> options)
+        {
+            _options = options.Value;
+        }
+        public async Task<string> GetTokenAsync()
+        {
+            var token = await this.GetAccessToken();
+            return token.access_token;
+        }
+
+        /// <summary>
+        /// 获取微信AccessToken
+        /// </summary>
+        public async Task<AccessTokenResponse> GetAccessToken()
+        {
+            string url = "https://api.weixin.qq.com/cgi-bin/token";
+            var req = new AccessTokenRequest();
+            req.appid = _options.AppId;
+            req.secret = _options.AppSecret;
+            req.grant_type = "client_credential";
+            using (HttpClient httpClient = new HttpClient())
+            {
+                string queryString = req.ToQueryString();
+                var builder = new UriBuilder(url);
+                builder.Query = queryString;
+                HttpResponseMessage response = await httpClient.GetAsync(builder.ToString());
+
+                response.EnsureSuccessStatusCode();
+
+                var responseBody = await response.Content.ReadFromJsonAsync<AccessTokenResponse>();
+                return responseBody;
+            }
+        }
+    }
+}