Maven imports external jar packages locally

1. cmd window cd to the directory where the jar package is to be introduced

2. mvn install: install-file -Dfile = jar package name.jar -DgroupId = This is the name to be used when the project is introduced (com.zt.uni) -DartifactId = sdk -Dversion = version number -Dpackaging = jar

3. Project introduction  

<dependency>
    <groupId>com.zt.uni</groupId>
    <artifactId>jar包的名称.jar</artifactId>
    <version>版本号 </version>
</dependency>