This Struts2 primer is enough
This is the beginning of Strtus, introducing the Struts framework... Why introduce Struts, what are the benefits of introducing Struts, and a simple introduction to...
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Tag: Java EE
New features in Java 11
January 9, 2024
by 梁信宏
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In terms of Java releases, the release cycle has officially changed to every six months -- a major release every six months and an intermediate...
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This article will teach you how to use Fastjson easily
January 9, 2024
by Samar Ramesh
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JSON I believe we are not unfamiliar with him, the front and back end interaction is often to JSON data exchange. Sometimes, JSON is stored...
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Java primitive data types and reference types – Java stuff
January 9, 2024
by Robert Morris-Ali
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The missing pictures in this article have been filled up, please rest assured to read. In front of the article sometimes leave some thinking questions,...
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Remember a stupid operation — thread safety
January 9, 2024
by Brett Davies
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I have a system that provides an RPC interface to send various information (such as SMS, email, wechat) and other channels. The system architecture of...
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TreeMap is that simple
January 8, 2024
by Jocelyn Morris
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If we set the key to null, an exception will be thrown and the following code will not be executed. Balancing red-black tree code is...
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JSP+Servlet+JDBC+mysql student score management system
January 8, 2024
by Aaina Agrawal
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A student score management system based on JSP+Servlet+Jdbc. Involve less technology, easy to understand, suitable for JavaWeb beginners to learn to use. 2. Use Eclipse...
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CAS Single Sign-on (SSO) Combat (I)
January 8, 2024
by Deborah Smith
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In the work, with more and more projects in contact, different development languages, different deployment systems, different projects have to maintain their own user authentication...
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Causes and solutions of JAVA memory leaks
January 8, 2024
by Derek Armstrong
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An important feature of the Java language is the automatic collection and collection of the garbage collector without the need to manually manage and free...
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WebService is that simple
January 8, 2024
by Keya Bahri
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First let's talk about why we need to learn webService such a technology.... Weather forecast such a function is not a simple JS component can...
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Java high concurrency SEC kill system
January 8, 2024
by Juan Barber Jr.
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I found a JavaWeb project on MOOCs, the content of which is about high concurrency, and I thought it was very interesting, so I went...
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Shopping Cart Principle and Java Implementation (Imitation jingdong implementation Principle)
January 8, 2024
by Rebecca Carey
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1) The user does not log in the user name and password, add the product, close the browser and open it again, do not log...
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JSP basic syntax and instructions
January 8, 2024
by Rasha Choudhury
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Output (similar to print) adds script snippets (that is, Java code) to embed HTML (in short, anything that belongs to Java code requires <%%>, such...
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Learning servlets in this way will be twice the result!!
January 8, 2024
by Alexandra Fowler
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Honestly, servlets are definitely an old technology these days. If you go to any company these days, you probably won't be writing projects directly in...
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Mybatis pagination plugin PageHelper study and use
January 8, 2024
by Dr. Marilyn Sutton
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Backend programmers know that paging is a common feature in Web systems, and the paging methods I've written about are cumbersome and not very portable,...
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Initial experience of Ali RPC framework DUBBO
January 8, 2024
by Ashley Weaver
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Recently, I studied alibaba's open source distributed RPC framework dubbo, and wrote a demo to experience the functions of Dubbo.
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A Java filter fix
January 8, 2024
by Kiara Manda
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Filter, as its name implies, is a kind of thing that plays the role of filtering and filtering. But compared with the Filter in real...
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Small white learn how to log
January 8, 2024
by Paula Barton
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I remember that I wrote an article before: "Alibaba Java development manual" after reading, before self-study because there is no contact with the "log", so...
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Learn about the Java locking mechanism
January 8, 2024
by Chirag Chaudhari
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Synchronized Lock is a Synchronized Lock. Synchronized Lock is a Synchronized Lock. Synchronized Lock is a Synchronized Lock. You don't have to go through so...
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Getting started with SpringMVC is that simple
January 8, 2024
by 金淑貞
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Suffice it to say, SpringMVC can do what Struts2 can do.... We just implement the handleRequest method, which already says request and Response objects for...
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Open source visual rules engine
January 8, 2024
by Kate Flood
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Urule infected to the loe is, inside the action can be customized, such as the figure above, the business scenario is the user login, share...
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The first application of Netty
January 8, 2024
by Devin Padilla
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As a small business in Java, I also used Netty in the project before. Netty also signed up for Ali's middleware competition because of Netty,...
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SQL interview question: Turn rows to columns
January 7, 2024
by Linda Benson
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In the interview will often ask the database row turn column problem, in fact, in the development of a lot of projects, especially some financial...
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Quick start Vue (2) Basic instructions of Vue
January 7, 2024
by 楊志宏
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Vue.vue.js directives start with a V - and they apply to HTML elements. Directives provide special features. When binding directives to elements, they add special...
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Here are some things you should prepare for a Java interview
January 7, 2024
by Shannon Bradley
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Of course, I want to change my platform and direction and figure out why I want to change my job. If I really want to...
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User login and registration [JDBC version]
January 7, 2024
by James Berg
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C3p0-0.9.2-pre1 and McHange-commons-0.2.jar. Transparency: Business objects can use data sources without knowing exactly how they are implemented. Access to the data source is transparent, because...
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Floating point versus binary in JAVA
January 7, 2024
by Mr. Matthew Evans
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Floating-point and binary in JAVA There are a lot of questions about the bottom of binary that need to be explored and the more we...
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EL expression
January 7, 2024
by Kiaan Dhawan
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Properties are accessed using the public get and set methods, that is, set to private and the size of the get and set methods must...
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EL expression and JSTL
January 7, 2024
by Wendy Carr
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Expression Language (EL) 1. Use to replace and simplify JSP Java code preparation 3. Syntax format: ${expression}4. Whether to ignore EL expression support in JSPS...
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Function implementation – Java using FFMPEG synthesis memoir
January 6, 2024
by 王怡君
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1. Background Information This is an operation activity of our cloud class product, which is proposed mainly to create the atmosphere of the opening season....
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