Implementation of paging in JavaWeb - based on Mysql (general)
I believe you can also see the paging effect on the website! So now let's take a look at his ideas, codes and renderings.General pagination based on MySql database
The core idea of general paging: send the last query request again, but the page number has changed
Implementation steps:
1) Query all data first
Junit test
baseDao&l ...
Posted by apoc- on Tue, 22 Nov 2022 20:07:21 +0300
Slots, custom directives, render functions, filters, plugins
1. Slot
normal slot, named slot, scoped slot
Slots allow us to pass templates to child components when calling them.
The <slot> element acts as an outlet to carry distribution content. A <slot> outlet without a name would carry the implicit name "default".
Everything in the parent template is compiled in the paren ...
Posted by Cardale on Thu, 06 Oct 2022 11:51:55 +0300
Basic java Lesson 8
catalogue
1, Specific contents
1.1 concept of polymorphism
1.2 polymorphic requirements
1.3 implementation steps of polymorphism
1.4 definition of polymorphism
2, abstract class
reflection:
2.1 abstract concepts
2.2 abstract method
3, Interface
3.1 concept of interface
3.2 definition and use of interface
3.3 contents of interface ...
Posted by ramu_rp2005 on Thu, 25 Aug 2022 09:59:23 +0300
Youwei low code: Transform data conversion
Introduction
The low code technology column of Youwei is a brand-new and technology-based column written by the members of Youwei Technology Committee. Based on the research and development and operation and maintenance achievements of low code technology of Youwei in the past 7 years, it mainly introduces the technical principles and arch ...
Posted by bhola on Tue, 16 Aug 2022 12:30:16 +0300
Encapsulation, inheritance and polymorphism of java
encapsulation
Characteristics of encapsulation: data can only be accessed through specified methods.Hide the instance details of the class to facilitate modification and implementation.Specific practical steps of packaging
Modify the visibility of attributes to restrict access to attributes, which is generally set to private.Create a pa ...
Posted by zz50 on Tue, 09 Aug 2022 21:33:18 +0300
SpringMVC interceptor and exception handling
catalogue
1, Interceptor configuration
2, Execution sequence of multiple interceptors
3, Exception handling based on configuration file
4, Annotation based exception handling
1, Interceptor configuration
1. Interceptors in springmvc are used to intercept the execution of controller methods
2. Interceptors in springmvc need to implem ...
Posted by darksystem on Fri, 05 Aug 2022 21:42:54 +0300
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