chore: 初始化东安动力外部数据接口工程

DatabaseClient/MysqlClient.cs

@@ -0,0 +1,126 @@
+using MySql.Data.MySqlClient;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DatabaseClient
+{
+   public class MysqlClient : DBClient
+    {
+        MySqlConnection conn;
+
+        public MysqlClient() { }
+
+        public override void Connect(string connString)
+        {
+            try
+            {
+                conn = new MySqlConnection(connString);
+            }
+            catch (Exception err)
+            {
+                GlobalVar.log.Error(err.Message);
+            }
+        }
+
+        public override DataTable ExecQuery(string sql)
+        {
+            DataTable dt = null;
+            try
+            {
+                if (conn != null)
+                {
+                    conn.Open();
+                    
+                    MySqlCommand command = new MySqlCommand(sql, conn);
+                    MySqlDataAdapter da = new MySqlDataAdapter(command);
+                    DataSet ds = new DataSet();
+                    da.Fill(ds);
+
+                    conn.Close();
+
+                    if (ds.Tables.Count > 0)
+                    {
+                        dt = ds.Tables[0];
+                    }
+
+                }
+
+            }
+            catch (Exception err)
+            {
+                GlobalVar.log.Error(err.Message);
+            }
+            return dt;
+        }
+
+        public override int ExecNonQuery(string sql)
+        {
+            int res = 0;
+
+            try
+            {
+                if (conn != null)
+                {
+                    conn.Open();
+
+                    MySqlCommand command = new MySqlCommand(sql, conn);
+                    res = command.ExecuteNonQuery();
+
+                    conn.Close();
+                }
+            }
+            catch (Exception err)
+            {
+                GlobalVar.log.Error(err.Message);
+            }
+
+            return res;
+        }
+
+        public static bool ExecQueryDataTable(string sql,string ConnectStr,out DataTable dt, out string err)
+        {
+            bool success = false;
+            err = "";
+            dt = null;
+            using (MySqlConnection conn = new MySqlConnection(ConnectStr))
+            {
+                try
+                {
+                    conn.Open();
+
+                    MySqlCommand command = new MySqlCommand(sql, conn);
+                    MySqlDataAdapter da = new MySqlDataAdapter(command);
+                    DataSet ds = new DataSet();
+                    da.Fill(ds);
+
+                    if (ds.Tables.Count > 0)
+                    {
+                        dt = ds.Tables[0];
+                    }
+                    success = true;
+                }
+                catch (Exception er)
+                {
+                    err = er.Message;
+                }
+                finally
+                {
+                    if (conn != null)
+                    {
+                        conn.Close();
+                    }
+                }
+
+            }
+           
+            return success;
+        }
+
+
+
+    }
+}