MVC Interceptor, MVC filter, MVC ActionFilterAttribute Interceptor Filter, onactionexecuting

MVC implements intercepting filters, filtering strings and entity classes and dynamically modifying data, partially filtering and all filtering:

#region

Using System;

Using System.Collections.Generic;

Using System.Linq;

Using System.Reflection;

Using System.Security.Policy;

Using System.Text;

Using System.Web;

Using SYSTEM.WEB.MVC;

Using System.Reflection;

Namespace SaaS.Admin.Base

{

<summary>

Global Filters

</summary>

public class Customerfilterattribute:actionfilterattribute

{

<summary>

Check if filtering is required

</summary>

Public bool Ischeck {get; set;} Whether you need to filter tags

<summary>

To execute the call before the action actions method is executed

</summary>

<param name= "Filtercontext" ></param>

public override void OnActionExecuting (ActionExecutingContext filtercontext)

{

Base. OnActionExecuting (Filtercontext);

#region Check if you need to intercept filtering "do not need to check filter"

if (! Ischeck)

{

Return //No filtering required

}

#endregion

var parameters = FilterContext.ActionDescriptor.GetParameters ();

foreach (var parameter in parameters)

{

if (parameter. ParameterType = = typeof (String))

{

Get string parameter original value

var orginalvalue = Filtercontext.actionparameters[parameter. ParameterName] As String;

Using filtering algorithms to process strings

if (!string. IsNullOrEmpty (orginalvalue) && orginalvalue!= "")

{

var filteredvalue = Htmlescapecode (Orginalvalue);

Assigning a post-processing value to a parameter

Filtercontext.actionparameters[parameter. ParameterName] = Filteredvalue;

}

}

else if (parameter. ParameterName = = "Model")

{

Get string parameter original value

var value = Filtercontext.actionparameters[parameter. ParameterName];

if (value. GetType (). IsClass && value. GetType (). Name = "string")//check if it is a class and is not a string type

{

Object objclass = value;//Gets the string parameter original value

propertyinfo[] Infos = Objclass.gettype (). GetProperties ();//Gets all the public properties of the original object

#region Create new instances dynamically "create new instances of entity classes dynamically"

System.Type TT = System.Type.GetType (value. ToString ());//Gets the type of the specified name

Object FF = activator.createinstance (TT, NULL);//Create instance of specified type

propertyinfo[] fields = ff. GetType (). GetProperties ();//Gets all the public properties of the specified object

Object obj = activator.createinstance (TT, NULL);//Create a new instance of the specified type "dynamically create a new instance"

#endregion

foreach (PropertyInfo info in infos)

{

if (info. CanRead)

{

Console.WriteLine (Info. Name + "=" + info. GetValue (objclass, null));

if (info. Propertytype.name = = "String")

{

Get value

String Orginalvalue =convert.tostring (info. GetValue (objclass, null));

if (!string. IsNullOrEmpty (orginalvalue) | | Orginalvalue!= "")

{

Check Filter Special characters

var filteredvalue = Htmlescapecode (Orginalvalue);

Assigning a post-processing value to a parameter

Info. SetValue (obj, filteredvalue, null);

Assigning a new value to an entity object

Filtercontext.actionparameters[parameter. ParameterName] = obj;

}

}

Else

{

Object Orginalvalue = info. GetValue (objclass, NULL);//Get value

Info. SetValue (obj, orginalvalue,null);//assigning new values to objects

Filtercontext.actionparameters[parameter. ParameterName] = obj;//assigning values to entity class objects

}

}

}

}

}

}

}

<summary>

Executes the call after the action method is executed

</summary>

<param name= "Filtercontext" ></param>

public override void OnActionExecuted (ActionExecutedContext filtercontext)

{

Base. OnActionExecuted (Filtercontext);

var controllername = filtercontext.routedata.values["Controller"];

var actionname = filtercontext.routedata.values["Action"];

}

Filter keywords

public string Htmlescapecode (string html)

{

var strhtml = html. Replace ("JavaScript", "" ")

. Replace ("VBScript", "" ")

. Replace ("JScript", "" ")

. Replace ("Script", "")

. Replace ("eval", "" ")

. Replace ("<", "" ")

. Replace (">", ">")

. Replace ("\", "'")

. Replace ("\" "," "")

. Replace ("&", "&")

. Replace ("#", "#");

return strhtml;

}

}

}

#endregion

The following are controllers that do not require filtering

Using SaaS.Contracts.SaaS.Intern.Dtos.BugDtos;

Using SaaS.Framework.SharpArch.Repositorys;

Using SHARPARCH.NHIBERNATE.WEB.MVC;

Using SaaS.Models.Domain.Enums;

Using SaaS.Models.Framework.Utility;

Using SaaS.Framework.Collections;

Namespace SaaS.Admin.Controllers

{

<summary>

Bug list Management

</summary>

[Customerfilter (Ischeck =false)] //No filter marks required

public class Bugcontroller:authorizebasecontroller

{

<summary>

Create a bug Order management constructor (the shortcut for building a constructor: Ctorf after pressing ENTER)

</summary>

Private ReadOnly Ibugservice _bugservice;

Public Bugcontroller (Ibugservice bugservice)

{

_bugservice = Bugservice;

}

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Here are the tags that need to be filtered

Using System;

Using System.Collections;

Using System.Collections.Generic;

Using System.Linq;

Using SYSTEM.WEB.MVC;

Using Microsoft.Practices.ServiceLocation;

Using SaaS.Contracts.SaaS.Intern;

Using SaaS.Framework.IIdentity;

Using SaaS.Models.Domain.Enums;

Namespace SaaS.Admin.Base

{

<summary>

Base Controller

</summary>

[Customerfilter (Ischeck = True)]//Filter label

public class Basecontroller:controller

{

<summary>

Popup Success Prompt

</summary>

<param name= "message" > Success message </param>

<param name= "url" > Jump path </param>

<returns></returns>

Protected ActionResult Successresult (String message, string URL)

{

tempdata["Successresult"] = message;

return Redirect (URL);

}

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This article is from the "Program Ape" blog, please be sure to keep this source http://haihuiwei.blog.51cto.com/4789207/1957030

MVC Interceptor, MVC filter, MVC ActionFilterAttribute Interceptor Filter, onactionexecuting