Dapper使用入门Demo

配置连接数据库

  <connectionStrings>
    <add name="strCon" connectionString="server=*.168.13.*\SERVICE;user id=sa; password=123456; database=TimeRecord;"/>
  </connectionStrings>

　　准备一个UserInfo表

CREATE TABLE [dbo].[UserInfo](
    [ID] [bigint] IDENTITY(1,1) NOT NULL,
    [Name] [nvarchar](50) NULL,
    [MyPic] [nvarchar](255) NULL,
    [Email] [nvarchar](50) NULL,
    [Password] [nvarchar](50) NULL,
    [Gender] [nvarchar](50) NULL,
    [Birthday] [datetime] NULL,
    [Textarea] [nvarchar](255) NULL,
    [CreateTime] [datetime] NULL,
 CONSTRAINT [PK_UserInfo] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

用vs建立一个控制台应用程序

新建一个UserInfo类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class UserInfo
    {
        private int iD;
        private string name;
        private string myPic;
        private string email;
        private string password;
        private string gender;
        private DateTime birthday;
        private string textarea;

        public string Name
        {
            get
            {
                return name;
            }

            set
            {
                name = value;
            }
        }

        public string MyPic
        {
            get
            {
                return myPic;
            }

            set
            {
                myPic = value;
            }
        }

        public string Email
        {
            get
            {
                return email;
            }

            set
            {
                email = value;
            }
        }

 

        public string Gender
        {
            get
            {
                return gender;
            }

            set
            {
                gender = value;
            }
        }

        public DateTime Birthday
        {
            get
            {
                return birthday;
            }

            set
            {
                birthday = value;
            }
        }

        public string Textarea
        {
            get
            {
                return textarea;
            }

            set
            {
                textarea = value;
            }
        }

        public string Password
        {
            get
            {
                return password;
            }

            set
            {
                password = value;
            }
        }

        public int ID
        {
            get
            {
                return iD;
            }

            set
            {
                iD = value;
            }
        }
    }
}

　　项目添加Dapper引用，通过工具→NUg包管理器→解决方案的nug管理包，进行查询dapper进行安装。

主程序

using Dapper;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {

            //读取config中的字符串
            string connstr = ConfigurationManager.ConnectionStrings["strCon"].ToString();
            //IDbConnection
            IDbConnection connection = new SqlConnection(connstr);

            //插入操作
            //   var result = connection.Execute("insert into UserInfo (name,mypic,email,[password],gender,birthday) values (@Name,@MyPic,@Email,@Password,@Gender,@Birthday)", new { Name = "kfz", MyPic = "74.jpg",Email="[email protected]", Password = "123456" ,Gender="Male", Birthday="1994-11-09"});

            //批量插入操作
            //  var UserList = Enumerable.Range(0, 10).Select(i => new UserInfo() { Name = "kfz" + i,Textarea=i.ToString(),Password="456"+i });
            // var result2 = connection.Execute("insert into UserInfo (Name,Textarea,Password) values(@Name,@Textarea,@Password)", UserList);


            //查询操作

            // var query = connection.Query<UserInfo>("select * from UserInfo where  Name =@Name", new UserInfo() { Name = "VinKong" });

            //  foreach (var item in query)
            //  {
            //    Console.WriteLine(item.Name+"==="+item.Email);
            //  }
            //更新操作
            //var result = connection.Execute("update UserInfo set Name ='MyGirl' where ID=@ID",new UserInfo (){ID = 10008 });
            //删除操作
            var result = connection.Execute("delete from UserInfo where ID = @ID",new UserInfo() { ID=10010});
            Console.ReadKey();
        }
    }
}