Background management system -- Design and implementation of row authority and column authority

Opening note If you have been inspired and thought here, I hope you can praise and support! You have different views on the content. Welcome to write and exchange.Technology stack > > javaMailbox > > 15673219519@163.com describe In the background system, in addition to assigning different menus according to roles, it is often enc ...

Posted on Tue, 30 Nov 2021 16:39:38 -0500 by SueHubert

Introduction and simple use of listener and filter listeners and filters

Overview of listeners 1. What is a listener A listener is a Java class that implements a specific interface. This Java class is used to listen for changes in methods or properties of another Java class. When the listener object sends an appeal event, a method of the listener will be executed immediately. 2. Purpose of the listener It is use ...

Posted on Thu, 25 Nov 2021 19:40:03 -0500 by southofsomewhere

Servlet Filter learning of Servlet

Filter, as the name suggests, is the process of filtering and preprocessing data. Why introduce filters? When you visit the website, sometimes you send some sensitive information. When it is displayed, you will replace the sensitive information with * and other characters, which is to process the information with a filter. This is just a simple ...

Posted on Wed, 17 Nov 2021 01:27:18 -0500 by Calcartman

In Java web projects, the "back" button is used to prevent users from returning to the page before logout

Implementation method: clear the cache in the Action jsp: <c:if test="${!empty sessionScope.user}"> <li><a href="#"> welcome: ${sessionscope. User. Username}</a></li> <li><a href="${pageContext.request.contextPath}/user/exit"target="_parent">Exit the system</a></li> </c:i ...

Posted on Fri, 12 Nov 2021 05:13:41 -0500 by keeve

[Spring Boot] Spring Boot Filter

This page will introduce an example of Spring Boot filter. Filters can be registered using the FilterRegistrationBean class or the @ Component annotation or the @ ServletComponentScan annotation. FilterRegistrationBean registers Filter as a Spring Bean, which provides methods such as adding URL mapping and setting Filter order. When we r ...

Posted on Fri, 24 Sep 2021 03:22:30 -0400 by grail

SpringBoot interceptor - Filter - listener

SpringBoot interceptor - Filter - listener Filter application scenario Filter can be simply understood as "take what you want", ignoring what you don't want; 1) Filter sensitive words (prevent sql injection) 2) Set character encoding 3) URL level access control 4) Compressed response information Interceptor usage scenario ...

Posted on Tue, 21 Sep 2021 18:26:42 -0400 by cbcampbell