RHELのビルド環境 – OpenJDKを使ったJavaアプリケーションのセットアップ

sudo yum update -y

sudo yum install -y java-11-openjdk java-11-openjdk-devel
java -version

sudo yum install -y wget
wget https://services.gradle.org/distributions/gradle-7.6-bin.zip
sudo mkdir /opt/gradle
sudo unzip -d /opt/gradle gradle-7.6-bin.zip
sudo ln -s /opt/gradle/gradle-7.6 /opt/gradle/latest
export PATH=$PATH:/opt/gradle/latest/bin
gradle -v

sudo yum install -y maven
mvn -v

mkdir ~/java-app
cd ~/java-app

mkdir -p src/main/java/com/example
nano src/main/java/com/example/Main.java

package com.example;

public class Main {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}

nano build.gradle

plugins {
id 'java'
}

group = 'com.example'
version = '1.0'

repositories {
mavenCentral()
}

dependencies {
testImplementation 'org.junit.jupiter:junit-jupiter:5.9.2'
}

test {
useJUnitPlatform()
}

gradle build

java -cp build/classes/java/main com.example.Main

tail -f /var/log/messages

gradle jar
java -jar build/libs/java-app-1.0.jar

nano ~/.bash_profile

export JAVA_HOME=$(dirname $(dirname $(readlink $(readlink $(which java)))))
export PATH=$JAVA_HOME/bin:$PATH

source ~/.bash_profile

dependencies {
implementation 'com.google.guava:guava:31.1-jre'
}
gradle build