<dependency>
<groupId>com.qrcode</groupId>
<artifactId>qrcode</artifactId>
<scope>system</scope>
<systemPath>${project.basedir}/src/main/webapp/WEB-INF/lib/QRCode.jar</systemPath>
<version>1.0.0</version>
</dependency>
groupId、artifactId、version随便写,systemPath写对就ok