maven插件增加version

pom.xml

@@ -116,6 +116,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-jar-plugin</artifactId>
+				<version>3.1.1</version>
 				<configuration>
 					<!-- 指定打包的jar包输出路径 -->
 					<outputDirectory>${project.build.directory}/${project.version}</outputDirectory>