Solution to the problem that the jar file packaged by Maven is only a few kb

1. Add the following code to the pom file

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

2. Open the maven tool sidebar of IDE

Click to skip the test mode, otherwise an error will be reported

 

Then click package

3. Packing

normal size