添加项目文件。

SamplePre.DAL/DBContext/DapperDBContext.cs

@@ -0,0 +1,27 @@
+using Models.Const;
+using MySql.Data.MySqlClient;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.SqlClient;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DataDAL.DBContext
+{
+    public class DapperDBContext
+    {
+        public IDbConnection Connection { get; set; }
+
+        //string connectionString = "Data Source=localhost;Database=fanghuayuan;AllowLoadLocalInfile=true;User ID=root;Password=123;allowPublicKeyRetrieval=true;pooling=true;port=3306;"; //"Data Source=DESKTOP-T4SGEQ7;Initial Catalog=防化院毒素;Integrated Security=True;TrustServerCertificate=True";
+
+        public DapperDBContext()
+        {
+
+            Connection = new MySqlConnection(SystemConst.SysConfigInfo.DbConfig.MySql.ConnStr);
+        }
+
+
+    }
+}