轻量级ORM框架Dapper应用之Dapper支持存储过程

CREATE proc sp_GetUserByUserName
@UserName varchar(16)
as
begin
select * FROM Users WHERE UserName=@UserName
end
GO

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

namespace DapperApplicationProcedure
{
    class Program
    {
        static void Main(string[] args)
        {
            // 连接字符串
            string conn = ConfigurationManager.ConnectionStrings["AppConnection"].ConnectionString;
            using (IDbConnection connection = new SqlConnection(conn))
            {
                var query = connection.Query<User>("sp_GetUserByUserName", new { UserName = "风清扬" }, commandType: CommandType.StoredProcedure);
                // 输出
                query.AsList().ForEach(p =>
                {
                    Console.WriteLine("姓名:"+p.UserName+",邮箱:"+p.Email+",地址:"+p.Address);
                });
            }

            Console.ReadKey();
        }
    }
}

CREATE proc procWithOutPara
@num1 int,
@num2 int,
@sum int output
as
begin
  set @sum=@num1+@num2
end
GO

// 动态类型参数
DynamicParameters paras = new DynamicParameters();
paras.Add("@num1", 23);
paras.Add("@num2", 45);
paras.Add("@sum", 0, DbType.Int32, ParameterDirection.Output);// 指明是输出参数，这里为指明参数类型大小
// 执行存储过程
dbConnection.Execute("procWithOutPara", paras, commandType: CommandType.StoredProcedure);
// 获取输出参数的值
int sum = paras.Get<int>("@sum");//68