What is the Maven packaging method and the method of executing jar in Java?

Maven packaging method and execution jar

1. Jar

1.1 Pom.xml

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>

1.2 Run

java -jar hello-world-0.0.1-SNAPSHOT.jar

1.3 Automatic execution method

2. Assembl1y

2.1 Pom.xml

2.2 Run

java -classpath hello -world-0.0.1-SNAPSHOT.jar com.demo.controller.HelloController

2.3 Method to be executed

public class HelloController {

    public static void main(String[] args) {
        for (int x = 0; x < 100 ; x++) {
            System.out.println("this is " +i+ " test");
        }
    }

3. Awakening

Those who can see the essence of something in one second and those who spend half a lifetime unable to see the essence of something clearly have different fates.

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