object handler

Looking back today before the Javaweb study road map, found that the road map also learned more than half, but still a long way. In the previous blog has studied the spring AOP, it uses the dynamic proxy implementation, in the SPRINGMVC is same,

Web development often encountered when browsing Web pages, users need to login to access some important pages, when you visit some "illegal" page, that is, if you have not logged into the system, you need to log in, as long as you successfully login

Filters, listeners, interceptorsfirst, understand themSee more than 10 blog, finally a little understand, in general, two pictures can let me see the point. We can understand the characteristics of interceptors and filters through two graphs.1.

Directory Brief introduction Posture one, using the Filter interface 1. Register Filterregistrationbean 2. @WebFilter annotations Posture Two, Hanlderinterceptor Posture III, @ExceptionHandler annotations

See the company has a department to raise this problem, to fill a rough solution ...1. Writing interceptors/** * Description: Prevent duplicate submissions * * @Author Liam * @Create DATE:2018/3/9 9:22*/ Public classAvoidresubmitintercepter extends

We used to configure filters and interceptors with a class that inherits an interface and then configures it in XML to OKBut, however, this is the springboot environment, without the configuration of XML. So we're going to keep on studying. Ah ah ah

Reference: Thank you for your hard finishing!68487904Https://www.cnblogs.com/lcngu/p/7096597.htmlHttps://www.cnblogs.com/daimajun/p/7172208.html72770853Want to do a detailed collation of the use of the Spring MVC Interceptor, search from the

4. Inithandlermappings Request for distributionHandlermappings is a list type of data, that is, initialization can hold a variety of mapping, and several other components load the same way, if the user does not select in the configuration file

Objective In the actual development process, often encounter some such as system startup initialization information, statistics online number, online users, filter high vocabulary, access rights control (URL level) and other business needs.

For example, a single sign-on, directly look at the code:Spring-mvc.xml Configuration mvc:interceptors> Mvc:interceptor> mvc:mappingPath="/**" /> mvc:exclude-mappingPath= "Index.html" />

Study Excerpt address: http://blog.csdn.net/chenleixing/article/details/44573495Today to learn and understand, filter and SPRINGMVC of the difference between the interceptor, learned a lot of things, has always thought that the interceptor is a

Reference articles Writing Interceptor Classes Package Cultivate_web.interceptor;import Javax.servlet.http.httpservletrequest;import Javax.servlet.http.httpservletresponse;import Javax.servlet.http.httpsession;import

Respect for the original: http://blog.csdn.net/ruiguang21/article/details/77878933 Problem scenario: Because the project is used to cross-domain access, today also get expert guidance, so write to share to everyone may be considering the front

Method one uses the httpsession that the servlet comes withNote the point: httpsession should be used as a parameter of the method //log in public boolean customerlogin (HttpSession　　　　httpSession) { Httpsession.setattribute ( "

Since some of the most recent projects are interface remote invocation, using Access and business permissions to authenticate, the need to use SPRINGMVC interceptor, used to use Struts2 when the Interceptor, and the SPRINGMVC interceptor function

Before the user login status has been used by filters filter implementation, today tried to use the SPRINGMVC Interceptor interceptor to achieve the user login status of the judge. Add the following code to the 1.spring-mvc.xml configuration file:

Blog in the form of demo to talk about the use of interceptors Project structure as shown: Required jars: Jars required for SPRINGMVC configuration and Jstl needed SPRINGMVC Package Function Description: Aopalliance.jar: This package is an

Two-step configuration Spring MVC Interceptor Interceptor One interceptor first step to implement Handlerinterceptor interface The second step registers into spring Two-step configuration Spring MVC Interceptor Interceptor A. Interceptor. Unlike

SPRINGMVC Study Notes (-SPRINGMVC) Development summary SPRINGMVC Study Notes 22-SPRINGMVC Development Summary SPRINGMVC Framework annotations Develop processor Mapper and adapter annotations using annotated mode parameter binding Springmvc and

Directory Brief introduction Posture one, using the Filter interface 1. Register Filterregistrationbean 2. @WebFilter annotations Posture Two, Hanlderinterceptor Posture III, @ExceptionHandler annotations Posture