Filter (beginner)

Filter filter 1 Filter what is a filter Filter filter is one of the three major components of Java Web. The three components are: Servlet program, Listener listener and filter filter Filter filter, which is the specification of Java EE. That is, the interface Filter filter is used to intercept requests and filter responses. Common application ...

Posted by Master Zen on Tue, 24 May 2022 04:24:00 +0300

Java Web -- servlet (learning notes)

catalogue 1. What is a servlet? 2. Working mode of Servlet 3. What are the main types of servlets 4. Create a Servlet class and configure it to the server 4.1 create a Servlet class and inherit HttpServlet (created manually) 4.2 configuring servlet s in Tomcat (must be configured in web.xml) 4.3 automatic creation and configuration &n ...

Posted by vcarter on Fri, 20 May 2022 01:41:15 +0300

Learn spring MVC notes

configuration file mvc:default-servlet-handler/ mvc:annotation-driven/ <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springfram ...

Posted by SteveMT on Tue, 10 May 2022 15:08:48 +0300

Simple application of Session and Cookie monitoring and filter interception, and small use of listener

What is session tracking technology Session tracking is a common technology in Web programs, which is used to track the whole session of users. Maintain data management during user sessions. Common session tracking Technology is Cookie and Session. Cookie s determine the user's identity by recording information on the client Session determines ...

Posted by asy1mpo on Sun, 08 May 2022 12:38:38 +0300

05-04-SpringBoot embedded Servlet container

Embedded Servlet container of SpringBoot 1, Introduction In SpringBoot, an embedded Servlet container is used for web project development, and a jar package is made after the development. This is because SpringBoot makes an embedded Servlet container. Because of this embedded Servlet container, we do not need to use external Tomcat to analyze t ...

Posted by matthewlesh on Sat, 30 Apr 2022 11:25:55 +0300

Thoughts on controller and filter

catalogue 1, Difference between filter and controller? 2, What is the relationship between the URL pattern of the filter and the controller? 3, What is the role of using wildcards in URL pattern when configuring filters? 4, The listener in this example is essentially monitoring what event in the container causes the change of what object? ...

Posted by blargalarg on Thu, 28 Apr 2022 18:45:33 +0300

Creation of Servlet based on Web Application

1. What is a Servlet? Servlet is a dynamic web resource development technology provided by SUN company. It is essentially a java program running on the server side. It should be noted that this java program cannot run independently. It must be placed in the Servlet container (such as tomcat server) and called by the container before it can be ...

Posted by Zaynt on Sun, 24 Apr 2022 22:29:01 +0300

[Java advanced learning] JSP introduction and use, syntax and instructions

JSP introduction Question: After learning Servlet, it is too troublesome to use Servlet to show the page. It greatly affects the efficiency of development. Is there a way for us to program web pages like writing web pages??? Solution: Using JSP technology: (HTML+CSS+JS+jQuery+Java code) Concept: The full name of JSP is Java Server Pages ...

Posted by WindChill on Sat, 16 Apr 2022 00:25:30 +0300

Filter and Listener of JavaWeb

Filter and Listener of JavaWeb Filter: filter Execution process: usage method: Filter configuration details Listener: listener Event monitoring mechanism ServletContextListener usage method: Cases of login interception using Filter Filter: filter Filter: when accessing the resources of the server, the filter can intercept the reques ...

Posted by cavey5 on Sun, 10 Apr 2022 21:06:03 +0300

JSP is an article that runs through

JSP JSP(Java Server Pages) dynamic web page technical standard. Its foundation is a simplified Servlet design. JSP is a substitute for Servlet to output HTML. In Servlet, you can also write page code by stream, but it brings a lot of repetitive work to programmers, and writes the logic processing and page output together, which makes the ...

Posted by Galia on Tue, 05 Apr 2022 04:28:52 +0300