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关于ADO.NET的问题

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悬赏园豆:5 [已解决问题] 解决于 2017-05-03 14:21

前几年一直在用很老的SqlHelper。但百度发现现在有好多新的SqlHelper了。近几年一直在捣腾web前端,ADO都差不多忘光了。谢谢大神帮忙看下小弟的SqlHelper有没有问题,需不需要改进下。

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;

namespace mipopoWeb.DAL
{
    public class Sqlhelper
    {
        /// <summary>
        /// 创建连接对象
        /// </summary>
        /// <returns></returns>
        public static SqlConnection GetConnection()
        {
            string name = ConfigurationManager.ConnectionStrings["dbStr"].ToString();
            return new SqlConnection(name);
        }
        /// <summary>
        /// 查询第一行第一列
        /// </summary>
        /// <param name="sql">执行的SQL语句</param>
        /// <param name="param">参数数组</param>
        /// <returns></returns>
        public static object ExecuteScalar(string sql, params SqlParameter[] param)
        {
            using (SqlConnection conn = GetConnection())
            {
                SqlCommand comm = new SqlCommand(sql, conn);
                if (param != null)
                {
                    comm.Parameters.AddRange(param);
                }
                conn.Open();
                object obj = comm.ExecuteScalar();
                return obj;
            }
        }
        /// <summary>
        /// 查询(整张表)
        /// </summary>
        /// <param name="sql">执行的SQL语句</param>
        /// <param name="param">参数数组</param>
        /// <returns></returns>
        public static SqlDataReader ExecuteReader(string sql, params SqlParameter[] param)
        {
            SqlConnection conn = GetConnection();
            SqlCommand comm = new SqlCommand(sql, conn);
            if (param != null)
            {
                comm.Parameters.AddRange(param);
            }
            conn.Open();
            SqlDataReader obj = comm.ExecuteReader(CommandBehavior.CloseConnection);
            return obj;
        }
        /// <summary>
        /// 增删改
        /// </summary>
        /// <param name="sql">执行的SQL语句</param>
        /// <param name="param">参数数组</param>
        /// <returns></returns>
        public static int ExecuteNonQuery(string sql, params SqlParameter[] param)
        {
            using (SqlConnection conn = GetConnection())
            {
                SqlCommand comm = new SqlCommand(sql, conn);
                if (param != null)
                {
                    comm.Parameters.AddRange(param);
                }
                conn.Open();
                int obj = comm.ExecuteNonQuery();
                return obj;
            }
        }
        /// <summary>
        /// 返回DataTable
        /// </summary>
        /// <param name="sql">执行的SQL语句</param>
        /// <returns></returns>
        public static DataTable FillTable(string sql)
        {
            SqlDataAdapter adapter = new SqlDataAdapter(sql, GetConnection());
            DataTable dt = new DataTable();
            adapter.Fill(dt);
            return dt;
        }
    }
}
MirageFireFox的主页 MirageFireFox | 初学一级 | 园豆:197
提问于:2017-05-02 18:24
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最佳答案
0

还是用dapper好一些,轻量级

收获园豆:5
秋壶冰月 | 大侠五级 |园豆:5903 | 2017-05-02 22:47

研究下dapper

MirageFireFox | 园豆:197 (初学一级) | 2017-05-03 14:22
其他回答(2)
0

https://github.com/wrx362114/EasyDAL

一个dal层自动生成的模版项目.

吴瑞祥 | 园豆:29449 (高人七级) | 2017-05-02 20:42
0

最近再研究dapper,打算换掉项目中的sqlhelper

MrNice | 园豆:3450 (老鸟四级) | 2017-05-03 09:32
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