Main class in SpringBoot Application

Question

This is my first day with SpringBoot, I try to understand the architecture so I started building a hello world application:

In my pom.xml, under maven-shade-plugin I state mainClass as follows:

<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
    <mainClass>com.demo.HelloWorld</mainClass>
</transformer>

And here's the groupId and artifactId values of the pom file:

<groupId>com.demo</groupId>
<artifactId>demo</artifactId>

When I package with maven ( mvn package ) and run the war file (target/demo.war), I get the following error:

Error: Could not find or load main class com.demo.HelloWorld

The file destination is src/main/java/com/demo/HelloWorld.java , and the code in that file is:

package com.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class HelloWorld {

    public static void main(String[] args) {
        SpringApplication.run(HelloWorld.class, args);
    }
}

What am I missing?

Answer 1

尝试使用spring-boot maven插件-> link ，它使可执行jar无需任何配置。