在使用Java的时候经常会做打包操作,有的时候一个小功能的实现可能会依赖一些jar包,
需求是:只要提供一个可运行的jar即可,因此就有必要将所有的依赖jar都打包到同一个可运行的jar中,这样可以更加简洁的提供一个可运行jar程序,
使用Maven可以实现这一需求,pom.xml中设置打包plugin,具体配置如下:
<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>${project.build.directory}/lib</outputDirectory> <overWriteReleases>false</overWriteReleases> <overWriteSnapshots>false</overWriteSnapshots> <overWriteIfNewer>true</overWriteIfNewer> </configuration> </execution> </executions> </plugin> <plugin> <artifactId>maven-assembly-plugin</artifactId> <configuration> <archive> <manifest> <mainClass>cn.xx.Aes.xxEncode</mainClass> </manifest> <manifestEntries> <Class-Path>.</Class-Path> </manifestEntries> </archive> <descriptorRefs> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> </configuration> <executions> <execution> <id>make-assembly</id> <phase>package</phase> <goals> <goal>single</goal> </goals> </execution> </executions> </plugin> </plugins> </build>
配置之后,从新clean package,即可在target目录下生成Aes-0.0.1-SNAPSHOT-jar-with-dependencies.jar,该jar可以直接拷贝去运行,
> java -jar Aes-0.0.1-SNAPSHOT-jar-with-dependencies.jar