[JAVA] Create Spring Boot environment with Windows + VS Code

Thing you want to do

I want to create an environment to run Spring Boot on Windows. If I do it on Windows, I feel that it is modern to make it on WSL and develop it with VS Code, so I aim for that. First run it on Windows only, then on WSL.

What i did

Runs only on Windows

OpenJDK installation

Download the JDK for Windows as a zip from http://jdk.java.net/14/ and unzip it. Move the created folder to an appropriate path. This time, I put it under C: \ Program Files \ Java \ jdk-14.

Also, set the following in the system environment variables.

VS Code settings

Extension installation

I installed the following.

• Language Support for Java(TM) by Red Hat
  • https://marketplace.visualstudio.com/items?itemName=redhat.java
• Gradle Language Support
  • https://marketplace.visualstudio.com/items?itemName=naco-siren.gradle-language
• Java Extension Pack
  • https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-java-pack
• Spring Boot Extension Pack
  • https://marketplace.visualstudio.com/items?itemName=Pivotal.vscode-boot-dev-pack
• Lombok Annotations Support for VS Code
  • https://marketplace.visualstudio.com/items?itemName=GabrielBB.vscode-lombok

java.home settings

Specify the JDK path in settings.json as shown below (add any other items).

{
    "java.home": "C:\\Program Files\\Java\\jdk-14"
}

If you search by entering java.home on the settings screen, a link to edit in settings.json will appear.

Create and run a Java project as a trial

Open the command palette with Ctrl + Shift + P and run Create Java Project. After entering the save location and project name appropriately, the project will be created and opened with VS Code. Debug with F5 and check if Hello Java is displayed.

Create and run Spring project as a trial

Open the command palette with Ctrl + Shift + P and run Spring Initiallizr: Generate a Gradle Project. (You can create it with Maven, but with Gradle)

Create a dependent package empty for the time being and execute it. It's OK if the Spring logo appears on the debug console and it is executed.

Run on WSL

OpenJDK installation

Install OpenJDK on WSL. It seems that OpenJDK11 can be installed with the apt command, so use this.

$ sudo apt update
$ sudo apt install -y openjdk-11-jdk

gradle installation

It seems old if you put it in with apt, but for the time being.

$ sudo apt install -y gradle

VS Code settings

Extension installation

First, install the following.

• Remote Development
  • https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.vscode-remote-extensionpack

If you type code in the WSL terminal after installation, VS Code for the WSL environment will be launched. In that state, install the extension installed with VS Code for Windows again.

• The label of the install button will be ʻInstall in WSL: Ubuntu`.

java.home settings

Change the value of java.home set in settings.json.

{
    "java.home": "/usr/lib/jvm/java-11-openjdk-amd64"
}

Create and run a Java project as a trial

Open the command palette with Ctrl + Shift + P and run Create Java Project. After entering the save location and project name appropriately, the project will be created and opened with VS Code. Debug with F5 and check if Hello Java is displayed.

Create and run Spring project as a trial

Open the command palette with Ctrl + Shift + P and run Spring Initiallizr: Generate a Gradle Project. Create a dependent package empty for the time being and execute it. It's OK if the Spring logo appears on the debug console and it is executed.

Try Spring Web

Create with the settings to use Spring Web when creating a project with Spring Initiallizr. Add @RestController annotation to Application class where main () is located, and create the following method in the class.

@GetMapping("/")
String home() {
    return "Hello!";
}

Run the application, access http: // localhost: 8080 /, and if Hello! Is displayed, it's OK. Repository: https://github.com/stamefusa/spring-web-demo

Referenced entry

https://qiita.com/dongsu-iis/items/6c7974022083d3036dc8

https://qiita.com/gitcho/items/a6c0bb781bc395e43ec4 https://qiita.com/gitcho/items/147a3ce2536ae3035bb8