update:请求加密&防篡改

QRCodeService/Application/Queries/AppQueries.cs

@@ -0,0 +1,32 @@
+using Dapper;
+using Microsoft.Extensions.Configuration;
+using MySqlConnector;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace QRCodeService.Application.Queries
+{
+    public class AppQueries : IAppQueries
+    {
+        readonly string _connectionString;
+
+        public AppQueries(IConfiguration configuration)
+        {
+            _connectionString = configuration.GetConnectionString("default");
+        }
+
+        public async Task<App> GetAppAsync(int id)
+        {
+            using (var connection = new MySqlConnection(_connectionString))
+            {
+                connection.Open();
+                var app = await connection.QueryAsync<App>(
+                    @"SELECT Id,AppKey,Remarks FROM App WHERE Id = @id", new { id });
+                return app.SingleOrDefault();
+            }
+        }
+    }
+}