Java Quick Start Experience

1. Environmental information

1.1 Hardware information

1. Model : MacBook Pro
2. Memory : 16GB
3. Hard disk : 512GB SSD
4. Processor : Apple M2
5. Host CPU architecture : ARM

1.2 Software information

1. Maven version : 3.8.8
2. J DK version : 17

Two, Maven installation

2.1 Introduction to Maven

Maven is a project management tool whose main function is to manage dependencies and build projects for Java projects during the project development phase .

• Dependency management: It is the management of jar packages. By importing maven coordinates, it is equivalent to importing the jar package in the warehouse into the current project.
• Project construction: The entire process of cleaning, compiling, testing, reporting, packaging, and deploying the project can be completed with one command of maven.
  

2.2 Maven installation package download

Download address: Apache Maven

2.3 Maven installation

Unzip to /usr/local/maven

# 环境配置
vim ~/.zshrc
# 输入
#>>>Maven>>>
export M2_HOME=/usr/local/maven/apache-maven-3.8.8
export PATH=$PATH:$M2_HOME/bin
#<<<Maven<<<

# 使配置生效
source ~/.zshrc

# 环境测验
echo $M2_HOME
mvn -v

2.4 Maven initialization

Modify the image source to Alibaba Cloud

# 进入到maven目录
cd /usr/local/maven/apache-maven-3.8.8/conf
vim settings.xml

# 修改仓库地址
<localRepository>/usr/local/maven/maven-3.8.8/repo</localRepository>

# 新增如下配置
<mirror>
  <id>alimaven</id>
  <name>aliyun maven</name>   
<url>https://maven.aliyun.com/nexus/content/groups/public/</url>   
  <mirrorOf>central</mirrorOf>   
</mirror>

3. Java installation

3.1 JDK download

Select the corresponding package to download according to the computer model and CPU architecture, download address: JDK download

3.2 JDK installation

After downloading dmg, click directly to complete the installation

# 查看java版本号确认是否安装完成
java -version

3.3 JDK initialization

# 环境配置
vim ~/.zshrc
# 输入
#>>>JDK17>>>
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home
export PATH=$PATH:$JAVA_HOME/bin
#<<<JDK17<<<

# 使配置生效
source ~/.zshrc

4. Construction of development environment

4.1 Install development tools

4.2 Associate Maven environment

4.2.1 Create a new JAVA project

4.2.2 Integration of Maven and IDEA

1. Open the Settings page of IDEA
2. Enter Mavem in the search box
3. Modify Maven Home, settings.xml path and warehouse path

5. Hello Word

So far, the Java quick start experience is completed, and Java-related chapters will be output in succession~ If you encounter any problems during the review process, please leave a message or private message for communication.