jQuery Ajax imitation AjaxPro.Utility.RegisterTypeForAjax helper method_jquery

In a certain project, I designed a template field engine and implemented it using html jquery. The data here inevitably needs ajax to obtain, but the team has different knowledge of js, so I wrote the following auxiliary class, which can simplify the development of ajax like ajaxpro.
Code-jQueryInvokeMethodAttribute (only method marking is done here, so it is empty):

Copy code The code is as follows:

[AttributeUsage(AttributeTargets.Method, AllowMultiple=false,Inherited=false)]
public class jQueryInvokeMethodAttribute : Attribute
{
}

Code -jQueryAjaxUtility (registering scripts and calling ajax events):

Copy code The code is as follows:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Green.Utility
{
public class jQueryAjaxUtility
{
public static string AjaxInvokeParam = "AjaxInvoke";
public static string AjaxInvokeValue = "1";
public static string ResponseCharset = "UTF-8";
protected static System.Web.UI.Page Page
{
get
{
return System.Web.HttpContext.Current.Handler as System.Web.UI.Page;
}
}
public static void RegisterClientAjaxScript(Type type)
{
if (Page != null)
{
if (System.Web.HttpContext.Current.Request[AjaxInvokeParam] == AjaxInvokeValue)
{
RegisterAjaxInvokeEvent(type);
}
else
{
RegisterAjaxInvokeScript(type);
}
}
}
protected static void RegisterAjaxInvokeScript(Type type)
{
Page.ClientScript.RegisterClientScriptBlock(type.GetType(), type.GetType().FullName "_" typeof(jQueryAjaxUtility).FullName "_AjaxInvokeDefaultOption", "window.defaultAjaxOption={type:'GET',cache:false, dataType:'text'};", true);
if (!jQueryUtilityCache.Current.Exists(type))
{
var methodinfo = type.GetMethods(System.Reflection.BindingFlags.IgnoreCase | System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public).Where(t =>
{
var attrs = t.GetCustomAttributes(typeof(jQueryInvokeMethodAttribute), false);
if (attrs != null && attrs.Length > 0)
return true;
return false;
}).ToList();
if (methodinfo != null && methodinfo.Count > 0)
{
System.Text.StringBuilder sb = new StringBuilder();
sb.AppendFormat(" window.{0}=function(){{}}; ", type.Name);
methodinfo.ForEach(t =>
{
var parameters = t.GetParameters().Select(p => p.Name).ToArray();
sb.AppendFormat(" {2}.{0} = function ({1} ajaxOption) {{", t.Name, parameters.Count() > 0 ? string.Join(",", parameters) "," : "", type.Name);
sb.Append("if(ajaxOption==null||typeof ajaxOption=='undefined'){ajaxOption={};};");
var url = Page.Request.RawUrl.IndexOf("?") == -1 ? Page.Request.RawUrl : Page.Request.RawUrl.Substring(0, Page.Request.RawUrl.IndexOf("?") );
sb.AppendFormat("ajaxOption.url = '{0}';", url);
var data = "''";
if (parameters.Count() > 0)
{
data = (string.Join(" ", parameters.Select(p => string.Format("'&{0}=' {0} ", p)).ToArray()));
data= data.TrimEnd(' ');
}
sb.AppendFormat("ajaxOption.data = 'method={1}&rn={4}&{2}={3}' {0};", data, t.Name, AjaxInvokeParam, AjaxInvokeValue,Guid.NewGuid().ToString());
sb.Append("ajaxOption= jQuery.extend(window.defaultAjaxOption,ajaxOption);");
sb.Append("jQuery.ajax(ajaxOption);};");
});
jQueryUtilityCache.Current.AddScript(type, sb.ToString());
}
}
var script = jQueryUtilityCache.Current.GetScript(type);
Page.ClientScript.RegisterClientScriptBlock(type.GetType(), type.GetType().FullName "_" typeof(jQueryAjaxUtility).FullName "_AjaxInvoke", script, true);
}
protected string GenertorScript(Type type)
{
return string.Empty;
}
protected static void RegisterAjaxInvokeEvent(Type type)
{
var Request = System.Web.HttpContext.Current.Request;
var Response = System.Web.HttpContext.Current.Response;
var method = Request["method"];
if (string.IsNullOrEmpty(method))
return;
Response.Clear();
var methodinfo = type.GetMethod(method, System.Reflection.BindingFlags.IgnoreCase | System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public);
if (methodinfo != null)
{
Response.Charset = ResponseCharset;
Response.ContentType = string.Join(",", Request.AcceptTypes);
var param = methodinfo.GetParameters();
object[] objs = new object[param.Length];
var i = 0;
param.ToList().ForEach(t =>
{
objs[i ] = Convert.ChangeType(Request[t.Name], t.ParameterType);
});
var obj = methodinfo.Invoke(null, objs);
if (obj != null)
{
//序列化
if (!obj.GetType().IsValueType && obj.GetType() != typeof(string))
{
if (Request.AcceptTypes.Contains("text/xml"))
{
Response.Write(Green.Utility.SerializerUtility.XmlSerializer(obj));
}
else if (Request.AcceptTypes.Contains("application/json"))
{
Response.ContentType = "application/json, text/javascript, */*";
Response.Write(Green.Utility.SerializerUtility.JsonSerializer(obj));
}
else
{
Response.Write(obj);
}
}
else
{
Response.Write(obj);
}
}
Response.Flush();
Response.Close();
Response.End();
}
}
}
}

In order to consider the performance of reflection, the class-level registration script method cache processing jQueryUtilityCache is added. See the demo for details.
Test:
html:

Copy code The code is as follows:

div> As follows:

Green.Utility.jQueryAjaxUtility.RegisterClientAjaxScript(typeof(_Default));

1: Front desk: Copy code

The code is as follows:

_Default.Test("ajax",
{
success: function(e) {

alert(e); }, dataType: "text" }); Backend:

Copy code


The code is as follows:

[Green.Utility.jQueryInvokeMethod()]
public static string Test(string str)
{

return "hello:" str; } Effect:

2: Front desk ajax:

Copy code

The code is as follows: _Default.TestArrayJson(1, 2, 3,
{
success: function(e) {

$.each(e, function(i, n) { alert( n); }); }, dataType: "json" }) Backend:

Copy the code


The code is as follows:

[Green.Utility.jQueryInvokeMethod()]
public static int[] TestArrayJson(int p1, int p2, int p3 )
{

return new int[] { p1, p2, p3 }; } Effect:

3: Front desk ajax:

Copy code

The code is as follows: _Default.TestArrayxml("key", "value",
{
success: function(e) {

alert(e.key); alert(e .Value); }, dataType: "json" })

Backend:

Copy code


The code is as follows:

[Green.Utility.jQueryInvokeMethod()]
public static Test TestArrayxml(string key,string value)
{

return new Test() { key=key,Value=value}; } Effect:

Finally take a look at the ajax http header information in FireBug:

Appendix:

Code Download Author: Broken Wolf (cnblogs)