Install and configure Java
First of all, you need to install jdk, and enter the Oracle official website.
Enterprises generally use java8. After entering the page, you can find it by scrolling down.
Choose the macOS system here, and there is only one installation package. Here, new users will be required to register, and the download can only be downloaded after the registration is successful. After the download is complete, double-click, and the installation guide will appear. Click Next until the installation is complete.
Find the terminal in Launchpad->Others, open it and enter java -version, if the java version number can be displayed successfully, it means the installation is successful.
Tips: The mac terminal will be used frequently and can be kept in the dock
At this point, Java is installed, and then configure the environment variables
Enter the following command in the terminal to view the java installation path
/usr/libexec/java_home -V
Look at the last line, the default installation path is /Library/Java/JavaVirtualMachines/jdk version/Contents/Home
Copy this path, then create a configuration file in the terminal, enter the following command
touch ~/.bash_profile
At this point, a blank file will be created, press i to enter the write mode, and write the following content into the configuration file
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk版本/Contents/Home
PATH=$JAVA_HOME/bin:$PATH:.
CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:.
export JAVA_HOME
export PATH
JAVA_HOME is the Java installation path copied in the previous step, press esc after writing, and then enter: wq to save and exit
Tips: The mac terminal uses Linux commands, and friends who are not familiar with it can learn this content first
Enter the following command in the terminal to make the configuration file take effect
source ~/.bash_profile
Continue to enter the following command, if the path just configured is displayed, it means success
echo $JAVA_HOME
Install Intellij Idea
Java development tools, search directly on the Internet, enter Jetbrains official website to download, remember to download the Ultimate version! ! ! This is the enterprise version, which can only be used for free for 30 days. Students can use the email address applied by the school for free. The installation here is very simple, so I won’t say much
Install and configure maven
Maven is a very important package management tool in Java development. It is necessary for development.
First, go to the download page of Maven official website: link
Download zip and decompress it, create a new Environment folder in the root directory, and drag the decompressed maven into it
Open the terminal, enter vim ~/.bash_profile, open the configuration file, and add the following content
export MAVEN_HOME=/Users/xxx/Environment/apache-maven-3.9.3
export PATH=$PATH:$MAVEN_HOME/bin
The version number in the path is determined according to the version you downloaded. Remember to source it after completion to make it take effect.
Enter the following command in the terminal
vim ~/.zshrc
write the following command
source ~/.bash_profile
Then: wq save and exit, source the following .zshrc file
Enter mvn -v in the terminal to display the version number, indicating that the configuration is successful. Here, it should be noted that Java environment variable configuration exceptions will cause maven environment exceptions
After the configuration is complete, we generally modify the configuration in apache-maven-xxx -> conf -> settings.xml, such as replacing it with a domestic Alibaba Cloud image, so that the download speed of dependencies is faster, and then modify the maven settings in Idea
. Change the various paths in the figure below to your own installation path, and then click apply
Install and configure git
Open the terminal, enter git -v, if git is not installed, you will be asked to install XCode at this time, just agree, and then git will be installed
. Execute git -v again, you can see the version of git
First configure the global user name and mailbox, execute in the terminal
git config --global user.name yourname
git config --global user.email youremail
Enter the following command to view all configurations and determine whether the configuration takes effect
git config --list
The configuration just now appears, indicating that it has taken effect
If you want to pull the code from gitlab, you also need to configure the following, you can refer to this blog: link