interceptor boots

Springmvc Study Notes (20)-interceptorSpringmvc Study Notes (20)-interceptor This article mainly introduces the interceptor in springmvc, including the definition and configuration of the interceptor, then demonstrates a test example of chained interception, and finally demonstrates the application of the interceptor

When an httprequest is received,A) when external httpservletrequest arrivesB) initially passed to the servlet container to a standard filter chainC) filterdispatecher searches for the corresponding actionmapper. If the corresponding actionmapper is found, it will grant the control permission to actionproxy.D) actionproxy searches for and configures struts. xml through configurationmanager.I. The next step will be to implement the command mode through actioninvocation (including calling some

What is an interceptor:Interceptors, which are used in AOP (aspect-orientedprogramming) to intercept a method or field before it is accessed, and then add some action before or after it. Interception is an implementation strategy of AOP.The Chinese document in WebWork is interpreted as--interceptors are objects that dynamically intercept action calls. It provides a mechanism to enable developers to define code that executes before and after an action executes, or to prevent it from executing bef

How to customize an interceptor. It takes three steps to customize an interceptor: 1 Customize a class that implements the Interceptor interface (or inherits from Abstractinterceptor). 2 Register the Interceptor defined in the previous step in Strutx.xml. 3 Refer to the above defined

Interceptor OverviewAn interceptor is a set of objects that dynamically intercept action calls. The handler code for the interceptor can be defined before or after the action is executed. At the same time, the interceptor can intercept the execution of an action. Interceptors can encapsulate some common functionality i

Interceptors almost spread out in every program, so the specific interceptor configuration process, I hope to help everyone.STRUTS2 Interceptor Specific configuration processSpecifies the number of parameters that the system initializes to the interceptor. Zhang added to your own set of interceptor stacks .Change th

Nineth Chapter Interceptor The interceptor works as shown above, and each action request is wrapped inside a series of interceptors. The interceptor can do similar operations in the action execution line, or it can be recycled after the action is executed straight. Each action can either transfer the action to the following

Pee InterceptorIt can be said that the "interceptor" is the key content of Struts2. See the name of the meaning, the role of interceptors is mainly to intercept things, intercept what? Of course ' action ', the interceptor works before executing ' action ', executes some pre-processed code, then executes the associated method in the action, and then the process goes back inside the

Nineth Chapter Interceptor The interceptor works as shown above, and each action request is wrapped inside a series of interceptors. The interceptor can do similar operations in the action execution line, or it can be recycled after the action is executed straight. Each action can either transfer the action to the following

= (httpservletrequest) request; String URL = Httprequest.getrequesturl (). toString ();if (url = =null | | Url.trim (). Length () = =0) {Return }if (Url.indexof (lucenecreatemapping)! =-1 | | url.indexof (lucenesearchmapping)! =-1) {dofilterforxxx ( Request, response, URL); } else {doxxxx (request, response, URL);} if (log.isdebugenabled ()) { Long endTime = System.currenttimemillis (); Thread CurrentThread = Thread.CurrentThread (); String threadname = Currentthread.getname (); Log.debug ("["

First, let's look at the features and implementations of Spring MVC Interceptor:Http://wenku.baidu.com/link?url=Mw3GaUhCRMhUFjU8iIDhObQpDcbmmRy_ Ipeumazg0ppnbmwqfutlp9kspupppeysf6enhblyfewrbjqmq8blwkqz_7msdhgqtvl32fpxcmmThe Interceptor interceptor in SPRINGMVC is also very important and useful, and its main function is to intercept the user's request and do the corresponding processing, other functions such

I. Introduction of InterceptorsThe interceptor in the SPRINGMVC, in simple terms, isInterception of user requests, we can do it after the interception request.preprocessing and post-processing, you can do the logging, permission control, request calculation and other operations. And the filter in the Servlet API is a bit similar.Second, the use of interceptors1. Writing interceptorsWe have to write the interceptor