c#反射优化 表达式树

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Text;
using System.Web;
 
namespace Holworth.Utility
{
    //add modi by kexb 2016年11月5日
    public static class FastRefelect
    {
        private static Spring.Caching.ICache GetSpringCache()
        {
            var ctx = Spring.Context.Support.ContextRegistry.GetContext();
            var cache = (Spring.Caching.ICache)ctx.GetObject("AspNetCache");
            return cache;
        }
        public static void AddCache(string key, object value)
        {
            var cache = GetSpringCache();
            cache.Insert(key, value);
        }
        public static void RemoveCache(string key)
        {
            var cache = GetSpringCache();
            cache.Remove(key);
        }
        public static object GetSpringCache(string key)
        {
            var cache = GetSpringCache();
            return cache.Get(key);
        }
 
        public static Func<T, MethodInfo, object, object> GetSetDelegate<T>(MethodInfo m, Type propertyType,string typeName)
        {
            Action<T, MethodInfo, object> set = null;
            string key = typeName + "," + m.Name+","+propertyType.Name+"," + "_FAST_SET_DELEGATE";
            if (GetSpringCache(key) == null)
            {
                Type mO = typeof(object);
                Type mT = typeof(T);
                Type mType = typeof(MethodInfo);
 
                var param_obj = Expression.Parameter(mT, "obj");
                var param_val = Expression.Parameter(mO, "val");
                var param_m = Expression.Parameter(mType, "m");
                var body_val = Expression.Convert(param_val, propertyType);
                var body = Expression.Call(param_obj, m, body_val);
                set = Expression.Lambda<Action<T, MethodInfo, object>>(body, param_obj, param_m, param_val).Compile();
                AddCache(key, set);
            }
            else
            {
                set = (Action<T, MethodInfo, object>)GetSpringCache(key);
 
            }
            return (instance, method, v) =>
            {
                set(instance, method, v);
                return null;
 
            };
 
        }
 
        public static void FastSetValue<T>(this PropertyInfo property, T t, string typeName, object value)
        {
 
            string key = typeName + "," + property.Name + "_FAST_METHOD_INFO";
            MethodInfo m = null;
            if (GetSpringCache(key) == null)
            {
                m = property.GetSetMethod();
                AddCache(key, m);
            }
            else
            {
                m = (MethodInfo)GetSpringCache(key);
            }
 
            GetSetDelegate<T>(m, property.PropertyType,typeName)(t, m, value);
        }
        public static object FastGetValue<T>(this object obj, string TypeName, string TProperty)
        {
            string key = TypeName + "," + TProperty + "_FAST_REFELECT";
            Func<object, object> getValue = null;
            if (GetSpringCache(key) == null)
            {
                Type SelfType = Type.GetType(TypeName);
                //lambda的参数u
                var param_obj = Expression.Parameter(typeof(object), "obj");
                //类型转换
                var convert_obj = Expression.Convert(param_obj, SelfType);
                //lambda的方法体 ((MyMath)obj).Age
                var pGetter = Expression.Property(convert_obj, TProperty);
                //对返回值进行类型转换
                var returnObj = Expression.Convert(pGetter, typeof(object));
                //编译lambda
                getValue = Expression.Lambda<Func<object, object>>(returnObj, param_obj).Compile();
                AddCache(key, getValue);
            }
            else
            {
                getValue = (Func<object, object>)GetSpringCache(key);
 
            }
            return getValue(obj);
        }
    }
}