DapperEx/Common.cs

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using Dapper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Text.RegularExpressions;

namespace DapperEx
{
    public static class Common
    {
        private static object objLock = new object();
        /// <summary>
        /// 用于缓存对象转换实体
        /// </summary>
        private static Dictionary<string, ModelDes> _ModelDesCache = new Dictionary<string, ModelDes>();
        /// <summary>
        /// 确定是否已经存在缓存
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        private static ModelDes ExistModelDesCache(string key)
        {
            ModelDes value;
            _ModelDesCache.TryGetValue(key, out value);
            return value;
        }
        /// <summary>
        /// 添加缓存
        /// </summary>
        /// <param name="key"></param>
        /// <param name="des"></param>
        private static void Add(string key, ModelDes des)
        {
            lock (objLock)
            {
                if ((!_ModelDesCache.ContainsKey(key)) && des != null)
                {
                    _ModelDesCache.Add(key, des);
                }
            }
        }
        /// <summary>
        /// 获取缓存
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        private static ModelDes GetModelDesCache(string key)
        {
            ModelDes value;
            _ModelDesCache.TryGetValue(key, out value);
            if (value != null)
                return value;
            throw new Exception("缓存中没存在此数据");
        }
        /// <summary>
        /// 更新缓存
        /// </summary>
        /// <typeparam name="T"></typeparam>