新建目录my-lib,将jar包移动到目录中，添加pom文件（用alipay测试）
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.alipay</groupId>
<artifactId>alipay-resource</artifactId>
<version>1.0.0</version>
<name>alipay</name>
<description>alipay jar lib</description>
</project>
cmd进入该目录下，执行命令
mvn install:install-file -Dfile=alipay-sdk-java20171201160035-source.jar -DgroupId=org.alipay -DartifactId=alipay-resource -Dversion=1.0.0 -Dpackaging=jar