using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using BFWebManage.Helper;
namespace test_20190902
{
class Program
{
static void Main(string[] args)
{
}
void fun1(ActionExecutingContext filterContext)
{
filterContext.HttpContext.Session.Get<int>("UserInfo");
}
}
public class ActionExecutingContext
{
public HttpContext HttpContext { get; set; }
}
//抽象类 //abstract
public class HttpContext
{
public ISession Session { get; set; }
}
}
namespace BFWebManage.Helper
{
//属性 扩展类 (属性名+Extensions的静态类)
public static class SessionExtensions
{
public static T Get<T>(this ISession session, string key)
{
var value = session.GetString(key); //Microsoft.AspNetCore.Http.Extensions.dll
return value == null ? default(T) : default(T); //如果T是int,那么默认值default(int)为0
//return value == null ? default(T) :
// JsonConvert.DeserializeObject<T>(value); //把字符串转换为对象
}
}
}
namespace Microsoft.AspNetCore.Http
{
//接口 interface
public interface ISession
{
}
public static class SessionExtensions
{
public static string GetString(this ISession session, string key)
{
return "";
}
}
}
//扩展 string方法
public static class A {
public static void tets(this string str)
{
}
}
