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How is the website accessed? 1. Enter a domain name and press enter 2. Check whether there is this domain name mapping under the C:\Windows\System32\drivers\etc\host configuration file of this machine; ① Yes: directly return the corresponding IP address. In this address, there are web programs we need to access, which can be accessed directl ...

MacBook Air M1 is configured with java development environment Maven + IDEA 1. JDK configuration At present, Zulu JDK supports M1 chip. Download Azul Zulu Builds of OpenJDK After downloading, click Install and follow the steps. After that, enter java -version on the console openjdk version "17.0.1" 2021-10-19 LTS OpenJDK Runtime Environment ...

catalogue 1. Multi table query 1.1 many to one (1)   The first way is to query through linked list. (2) The second way is through nested query. ---- two queries.   one point two   One to many 2. Dynamic SQL (1) if with where   (2)   [choose when otherwise] and where   (3)set tag --- modify some fields ...

preface A series of materials I publish are my study, backup and use, and convenient for future review. With my continuous improvement, each article will continue to add content or expand the article, so the article I publish will be relatively long. If you brush my article, it will be helpful to you and can be collected Enterprise archit ...

Spring 1. Introduction 1.1. What is Spring Spring is a lightweight open source framework for layered Java SE/EE application full stack, with IoC (Inverse Of Control) and AOP (Aspect Oriented Programming) as the kernel. It provides many enterprise application technologies such as presentation layer SpringMVC, persistence layer spring JDB ...

1, What is jquery John Resig released a cross mainstream browser JavaScript Library in January 2006 to simplify JavaScript operation on HTML 2, Advantages of jquery Write less code and do more [write less do more]Free, open source and lightweight js library with small capacity          Note: i ...

Introduction:   MySQL is a relational database management system commonly used in Web site scenarios such as LAMP and LNMP. This article will show you how to install, configure, and remotely access MySQL databases on an ECS instance of the CentOS system. Mirror download, domain name resolution, time synchronization Click   Alibaba ...

Maven automated build tool This post is reproduced from the Up Master of station B: Guard the most beautiful old Du in the world Chapter I Introduction to Maven 1.1 stages in software development Need analysis: analyze the specific functions completed by the project, what requirements are there, and how to implement them. Design stage: acc ...

One background With the rapid development of the Internet industry, web-based business and processes become more cumbersome and iterative faster. Traditional manual testing can not meet the market demand. In order to reduce the labor cost of regression, rapid iteration and automatic testing are the inevitable trend. This article mainly int ...

Development tool preparation Development tool: idea2017 up Dependency management: Maven 3 or above JDK: above 1.8 Creating a Spring project using Maven Select MavenCheck Create from archetypeSelect Maven archetype QuickStart Created successfully Creating a Spring project using Java Enterprise Default Version generally selects Java ...