src/Library/NetPro.Dapper/Repositories/DapperRepository.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using Dapper;
using NetPro.Dapper.Expressions;
using NetPro.Dapper.Parameters;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Linq;
using System.Text;
using static Dapper.SqlMapper;

namespace NetPro.Dapper.Repositories
{
    public partial class DapperRepository<DapperDbContext> : IDapperRepository<DapperDbContext> where DapperDbContext : DapperContext
    {
        //在此可以动态更改数据库连接
        public virtual DapperDbContext DbContext { get; set; }
        public DapperRepository(DapperDbContext context)
        {
            DbContext = context;
        }

        public virtual DbConnection Connection
        {
            get
            {
                return DbContext.Connection as DbConnection;
            }
            set
            {
                DbContext.Connection = value;
            }
        }

        public virtual DbTransaction ActiveTransaction
        {
            get { return DbContext.ActiveTransaction as DbTransaction; }
        }

        #region 事务隔离级别设置
        /// <summary>
        /// 脏读
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="acquire"></param>
        /// <param name="withNoLock"></param>
        /// <returns></returns>
        protected T ReadUncommitted<T>(Func<T> acquire, bool withNoLock)
        {
            if (withNoLock)
            {
                Execute("SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED");
            }
            try
            {
                return acquire();
            }
            catch (Exception ex) when (ex.Message == "Sequence contains no elements")//用于处理SingleQuery查询查询不到的异常
            {
                return default;