1 function introduction
The function of this application is to fill in and submit the product form for the user. If the price information is entered incorrectly, an error prompt will appear. If there is no error, the product will be saved and a completion page will be displayed to display the saved pr ...
Posted on Tue, 14 Jan 2020 22:51:58 -0800 by cricher
js dynamic modification of html elements, access to html elements
1. Access html elements according to ID
2. Access html elements according to CSS selector
3. Access html elements by using node relationship
Access HTML elements based on ID
Document.getelementbyid (idval): returns the HTML element in the document whose id att ...
Posted on Sun, 10 Nov 2019 08:31:46 -0800 by bigmichael
<?xml version="1.0" encoding="UTF-8"?>
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID"
Posted on Fri, 11 Oct 2019 13:13:10 -0700 by dc_jt
Wechat Public Number: Architect Front Line
Original Statement: This article is originally created by the author. It refuses unauthorized reprinting of personal, media, public numbers or websites. Violators shall be held liable.
Posted on Tue, 17 Sep 2019 07:03:11 -0700 by supermars
Overview: Array length is fixed, when the added elements exceed the length of the array, we need to redefine the array. It's too troublesome. Java provides us with collection classes, which can store arbitrary objects. The length can be changed. It increases with the increase of elements and decreases with the decrease of element ...
Posted on Sat, 25 May 2019 15:57:26 -0700 by maskme
http introduction: http is a set of specifications, a standard protocol for network data interaction, different languages, different data to achieve reasonable data interaction (for example, browser and server data interaction), you have to follow the protocol he prescribed, so that a standard (everyone knows) data interaction will be formed.
Posted on Wed, 08 May 2019 06:00:39 -0700 by daveh33
1. Cognition of Java Servlet
1.1 Concepts related to Web development
Web servers: Tomcat, Apache, ngix, IIS
Web browsers: Google Chrome, Mozilla FireFox, Apple Safari, Microsoft Edge, IE
HTTP: HyperText Transfer Protocol Hypertext Transfer Protocol
HTML: HyperText Markup Language Hypertext Markup Language
1.2 What is Ser ...
Posted on Sat, 04 May 2019 08:40:38 -0700 by cirko
Basic Knowledge and Use Method of Servlet
I. Servlet Foundation
1.1 What is a Servlet
Servlet is a basic component specification, which belongs to Java Web as well as JSP, Filter, Tag and Listener.
Servlet s are generally used as the control layer to handle requests fr ...
Posted on Thu, 11 Apr 2019 23:00:33 -0700 by jpopuk
I. web.xml Loading Process
When we start a WEB project container, the container includes (JBoss,Tomcat, etc.). The first step is to read the configuration in the web.xml configuration file. When this step is correct and completed, the project can be started normally.
When starting a WEB project, the container first reads two ...
Posted on Tue, 02 Apr 2019 10:30:29 -0700 by websesame
First of all, the ThreadLocal stored values are shared within threads and mutually exclusive between threads. They are mainly used to share some data within threads and avoid passing through parameters. After processing, some practical problems can be solved gracefully, such as hibernate The OpenSession InView in ThreadLocal is used to save S ...
Posted on Thu, 21 Mar 2019 22:36:53 -0700 by ab4net