前言

剛開始做AJAX應(yīng)用的時(shí)候，經(jīng)常要手工解析客戶端傳遞的參數(shù)，這個(gè)過程極其無聊，而且代碼中充斥著：Request["xxx"]之類的代碼。

這篇文章的目的就是告訴初學(xué)者如何自動(dòng)將客戶端用AJAX發(fā)送的參數(shù)自動(dòng)綁定為強(qiáng)類型的成員屬性或方法參數(shù)。

自動(dòng)綁定到ASPX和ASHX

框架支持
代碼如下:
using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace Happy.Web
 {
     public interface IWantAutoBindProperty
     {
     }
 }

代碼如下:
using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace Happy.Web
 {
     [AttributeUsage(AttributeTargets.Property, AllowMultiple = true)]
     public sealed class AutoBind : Attribute
     {
     }
 }

代碼如下:
using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 using System.Web;

 using Newtonsoft.Json;

 using Happy.ExtensionMethods.Reflection;

 namespace Happy.Web
 {
     public class JsonBinderModule : IHttpModule
     {
         public void Init(HttpApplication context)
         {
             context.PreRequestHandlerExecute += OnPreRequestHandlerExecute;
         }

         private void OnPreRequestHandlerExecute(object sender, EventArgs e)
         {
             if (!(HttpContext.Current.CurrentHandler is IWantAutoBindProperty))
             {
                 return;
             }

             var properties = HttpContext.Current.CurrentHandler.GetType().GetProperties();

             foreach (var property in properties)
             {
                 if (!property.IsDefined(typeof(AutoBind), true))