MVC uses Handleerrorattribute to handle exceptions uniformly

The Handleerrorattribute inherits from the FilterAttributeand implements the Iexceptionfilter interface.

An implementation of the AOP idea, the exception handling in the four filters (permissions, actions, results, exceptions) of MVC.

Usage1. Creating custom Exception Handling

 Public classapphandleerrorattribute:handleerrorattribute{ Public Override voidonexception (Exceptioncontext filtercontext) {varJSON =NewJsonresponse (); Json.success=false; varex =filtercontext.exception; //deal Custom Exception ...Json.message ="system exception, please contact the administrator!"; stringmsg =string. Format ("System exception: {0}", ex.        Message);   Loghelper.error (MSG, ex); //log4jnetfiltercontext.exceptionhandled=true; varresult =NewJsonresult (); Result. Data=JSON; Result. Jsonrequestbehavior=Jsonrequestbehavior.allowget; Filtercontext.result=result; }}

2. Registration

 Public class filterconfig{    publicstaticvoid  registerglobalfilters ( Globalfiltercollection filters)    {        filters. ADD (new  Apphandleerrorattribute ());}    }

Reference: http://www.cnblogs.com/linjiancun/archive/2010/09/16/1827937.html