【Maven jar】打包单个或多个文件，有依赖jar包的将架包一起打包成一个jar包供别的项目引用

之前有一片文章，是打包单个java文件的。这次想要将http://www.cnblogs.com/sxdcgaq8080/p/8398780.html 打包成jar包，发现这个java文件中引用了多个第三方的jar，想要单独进行编译都无法通过，更不要说打包成jar了。

所以就营运而生了这个需求，怎么打包单个java文件或多个java文件，将文件中引用的依赖的jar包共同打包成一个jar供别的项目引用。

本次本篇使用的工具是Maven中的

maven-assembly-plugin

插件。

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1.首先，需要新建一个maven项目，将单个或多个java文件拷贝到本项目中

例如，下面这个QR_Code.java文件

"C:\Program Files\Java\jdk1.8.0_131\bin\java" -Dmaven.multiModuleProjectDirectory=G:\ideaProjects\B\sxdproject -Dmaven.home=C:\Users\SXD\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\173.3727.127\plugins\maven\lib\maven3 -Dclassworlds.conf=C:\Users\SXD\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\173.3727.127\plugins\maven\lib\maven3\bin\m2.conf -javaagent:C:\Users\SXD\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\173.3727.127\lib\idea_rt.jar=58262:C:\Users\SXD\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\173.3727.127\bin -Dfile.encoding=UTF-8 -classpath C:\Users\SXD\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\173.3727.127\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar org.codehaus.classworlds.Launcher -Didea.version=2017.3 org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-5:assembly
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building QR_Code 1.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> maven-assembly-plugin:2.2-beta-5:assembly (default-cli) > package @ QR_Code >>>
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ QR_Code ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ QR_Code ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 1 source file to G:\ideaProjects\B\sxdproject\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ QR_Code ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory G:\ideaProjects\B\sxdproject\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:testCompile (default-testCompile) @ QR_Code ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ QR_Code ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ QR_Code ---
[INFO] Building jar: G:\ideaProjects\B\sxdproject\target\QR_Code-1.1-SNAPSHOT.jar
[INFO]
[INFO] --- maven-assembly-plugin:2.2-beta-5:single (make-assembly) @ QR_Code ---
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] Building jar: G:\ideaProjects\B\sxdproject\target\QR_Code-1.1-SNAPSHOT-jar-with-dependencies.jar
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO]
[INFO] <<< maven-assembly-plugin:2.2-beta-5:assembly (default-cli) < package @ QR_Code <<<
[INFO]
[INFO] --- maven-assembly-plugin:2.2-beta-5:assembly (default-cli) @ QR_Code ---
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] Building jar: G:\ideaProjects\B\sxdproject\target\QR_Code-1.1-SNAPSHOT-jar-with-dependencies.jar
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.319 s
[INFO] Finished at: 2018-02-01T16:30:47+08:00
[INFO] Final Memory: 23M/258M
[INFO] ------------------------------------------------------------------------

Process finished with exit code 0

View Code

4.执行完成之后，项目结构会发生变化



5.把jar包拷出来，放在一个位置，就可以上传到nexus上，放在maven私服里，给大家引用了【nexus私服搭建以及相关操作，查看http://www.cnblogs.com/sxdcgaq8080/p/7583767.html】



当然，想更改jar的名字，也可以直接修改完成之后再进行如下操作

打开DOM窗口，执行如下命令

mvn deploy:deploy-file -DgroupId=sxd.jar -DartifactId=QR_Code -Dversion=1.1 -Dpackaging=jar -Dfile=G:\test\QR_Code-1.1-SNAPSHOT.jar -Durl=http://localhost:8081/repository/myself_hosted/ -DrepositoryId=myself_hosted

在http://localhost:8081/ 访问nexus

查询就可查看到



这样在项目中引用如下：

<!--QR_Code二维码使用工具包-->
<dependency>
<groupId>sxd.jar</groupId>
<artifactId>QR_Code</artifactId>
<version>1.1</version>
</dependency>

6.最后，就可以把这个单独创建的项目 删除就好了

END

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参考地址：https://www.cnblogs.com/f-zhao/p/6929814.html