From 683ed4db9c56bf9a0f896caf02aeee620807baa6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=AB=A5=E6=AF=93=E6=B3=BD?= <13204402429@stu.ecnu.edu.cn>
Date: Sun, 17 Jan 2021 21:39:37 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=A0=E9=99=A4=20'DBAcess.cs'?=
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---
 DBAcess.cs | 171 -------------------------------------------------------------
 1 file changed, 171 deletions(-)
 delete mode 100644 DBAcess.cs

diff --git a/DBAcess.cs b/DBAcess.cs
deleted file mode 100644
index 3c7d36f..0000000
--- a/DBAcess.cs
+++ /dev/null
@@ -1,171 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Web;
-using System.Data;
-using System.Data.SqlClient;
-using System.Configuration;
-using System.Text;
-
-/// <summary>
-///DBacess 的摘要说明
-/// </summary>
-namespace basic
-{
-
-    public class DBacess
-    {
-        /// <summary>
-        /// 创建活动SqlConnection
-        /// </summary>
-        /// <returns>SqlConnection</returns>
-        /// 
-        public static SqlConnection con;
-        private static SqlConnection connection()
-        {
-            SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["ConnectionString"].ToString());
-            con = conn;
-            return conn;
-        }
-        /// <summary>
-        /// 打开连接数据库
-        /// </summary>
-        /// <param name="conn">SqlConnection对象</param>
-        private void OpenConnection(SqlConnection conn)
-        {
-            if (conn != null && conn.State == ConnectionState.Closed)
-                conn.Open();
-        }
-
-        /// <summary>
-        /// 关闭数据库
-        /// </summary>
-        /// <param name="conn">SqlConnection对象</param>
-        private void CloseConnection(SqlConnection conn)
-        {
-            if (conn != null && conn.State == ConnectionState.Open)
-                conn.Close();
-        }
-        /// <summary>
-        /// 更新数据库
-        /// </summary>
-        /// <param name="sql"></param>
-        /// <param name="parameters"></param>
-        /// <param name="type"></param>
-        /// <returns></returns>
-        public bool Update(string sql, SqlParameter[] parameters, CommandType type)
-        {
-            SqlConnection conn = connection();
-            bool result = false;
-            try
-            {
-                using (conn)
-                {
-                    SqlCommand cmd = new SqlCommand(sql, conn);
-                    if (parameters != null)
-                    {
-                        foreach (SqlParameter parameter in parameters)
-                        {
-                            if (parameters != null && parameter.ParameterName != "")
-                            {
-                                cmd.Parameters.Add(parameter);
-                            }
-                        }
-                    }
-                    cmd.CommandType = type;
-                    cmd.Connection.Open();
-                    int flag = cmd.ExecuteNonQuery();
-                    if (flag > 0)
-                        result = true;
-                }
-            }
-            finally
-            {
-                CloseConnection(conn);
-            }
-            return result;
-
-        }
-        /// <summary>
-        /// 根据条件查询数据
-        /// </summary>
-        /// <param name="sql"></param>
-        /// <param name="parameters"></param>
-        /// <returns>DataTable</returns>
-        public DataTable SelectReturnDataTable(string sql, SqlParameter[] parameters)
-        {
-            SqlConnection conn = connection();
-            DataTable dt = new DataTable();
-            try
-            {
-                using (conn)
-                {
-                    SqlCommand cmd = new SqlCommand(sql, conn);
-                    if (parameters != null)
-                    {
-                        foreach (SqlParameter parameter in parameters)
-                        {
-                            if (parameter != null && parameter.ParameterName != "")
-                            {
-                                cmd.Parameters.Add(parameter);
-                            }
-                        }
-                    }
-                    conn.Open();
-                    SqlDataAdapter sda = new SqlDataAdapter(cmd);
-
-                    sda.Fill(dt);
-                }
-            }
-            //catch (Exception e)
-            //{
-
-            //}
-            finally
-            {
-                CloseConnection(conn);
-            }
-            return dt;
-        }
-        /// <summary>
-        /// 根据条件查询数据
-        /// </summary>
-        /// <param name="sql"></param>
-        /// <param name="parameters"></param>
-        /// <returns>DataSet</returns>
-        public DataSet SelectReturnDataSet(string sql, SqlParameter[] parameters)
-        {
-            SqlConnection conn = connection();
-            DataSet ds = new DataSet();
-            try
-            {
-                using (conn)
-                {
-                    SqlCommand cmd = new SqlCommand(sql, conn);
-                    if (parameters != null)
-                    {
-                        foreach (SqlParameter parameter in parameters)
-                        {
-                            if (parameter != null && parameter.ParameterName != "")
-                            {
-                                cmd.Parameters.Add(parameter);
-                            }
-                        }
-                    }
-                    conn.Open();
-                    SqlDataAdapter sda = new SqlDataAdapter(cmd);
-
-                    sda.Fill(ds);
-                }
-            }
-            //catch (Exception e)
-            //{
-
-            //}
-            finally
-            {
-                CloseConnection(conn);
-            }
-            return ds;
-        }
-    }
-}