使用maven生成可执行的jar包的方法

本文介绍了使用maven生成可执行的jar包的方法，分享给大家，具体如下：

从pom的xsi中可以打开描述pom的schema:

可以看到pom中，project的结构：

默认的mvn install生成的jar是不带主类入口的，需要在maven-compile-plugin中设置主类，

<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>com.cetc.di</groupid>
 <artifactid>hellocetc</artifactid>
 <version>0.0.1-snapshot</version>
 <packaging>jar</packaging>

 <name>hellocetc</name>
 <url>http://maven.apache.org</url>



 <properties>
  <project.build.sourceencoding>utf-8</project.build.sourceencoding>
 </properties>

 <dependencies>
  <dependency>
   <groupid>junit</groupid>
   <artifactid>junit</artifactid>
   <version>3.8.1</version>
   <scope>test</scope>
  </dependency>
 </dependencies>
 
 
<build>
<pluginmanagement>
<plugins>
<plugin>
  <groupid>org.apache.maven.plugins</groupid>
  <artifactid>maven-jar-plugin</artifactid>
  <configuration>
    <source>1.8</source>
    <target>1.8</target>
    <archive>
      <manifest>
        <mainclass>com.cetc.di.hellocetc.app</mainclass>
        <addclasspath>true</addclasspath>
      <classpathprefix>lib/</classpathprefix>
      </manifest>

    </archive>
    <classesdirectory>
    </classesdirectory>
  </configuration>
</plugin>
</plugins>  
</pluginmanagement>
</build> 
</project>

执行mvn install:

在target目录中，发现jar包已经生成：

用java decompiler，可以看到manifest中已经加入了mainclass：

使用mvn help:effective-pom可以看到pom.xml的完整结构（包括继承而来的属性）：

[info] scanning for projects...
[info]                                     
[info] ------------------------------------------------------------------------
[info] building hellocetc 0.0.1-snapshot
[info] ------------------------------------------------------------------------
[info] 
[info] --- maven-help-plugin:2.2:effective-pom (default-cli) @ hellocetc ---
[info] 
effective poms, after inheritance, interpolation, and profiles are applied:

<!-- ====================================================================== -->
<!--                                    -->
<!-- generated by maven help plugin on 2015-11-18t08:05:12         -->
<!-- see: http://maven.apache.org/plugins/maven-help-plugin/        -->
<!--                                    -->
<!-- ====================================================================== -->

<!-- ====================================================================== -->
<!--                                    -->
<!-- effective pom for project 'com.cetc.di:hellocetc:jar:0.0.1-snapshot'  -->
<!--                                    -->
<!-- ====================================================================== -->

<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>com.cetc.di</groupid>
 <artifactid>hellocetc</artifactid>
 <version>0.0.1-snapshot</version>
 <name>hellocetc</name>
 <url>http://maven.apache.org</url>
 <properties>
  <project.build.sourceencoding>utf-8</project.build.sourceencoding>
 </properties>
 <dependencies>
  <dependency>
   <groupid>junit</groupid>
   <artifactid>junit</artifactid>
   <version>3.8.1</version>
   <scope>test</scope>
  </dependency>
 </dependencies>
 <repositories>
  <repository>
   <snapshots>
    <enabled>false</enabled>
   </snapshots>
   <id>central</id>
   <name>central repository</name>
   <url>https://repo.maven.apache.org/maven2</url>
  </repository>
 </repositories>
 <pluginrepositories>
  <pluginrepository>
   <releases>
    <updatepolicy>never</updatepolicy>
   </releases>
   <snapshots>
    <enabled>false</enabled>
   </snapshots>
   <id>central</id>
   <name>central repository</name>
   <url>https://repo.maven.apache.org/maven2</url>
  </pluginrepository>
 </pluginrepositories>
 <build>
  <sourcedirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\src\main\java</sourcedirectory>
  <scriptsourcedirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\src\main\scripts</scriptsourcedirectory>
  <testsourcedirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\src\test\java</testsourcedirectory>
  <outputdirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\target\classes</outputdirectory>
  <testoutputdirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\target\test-classes</testoutputdirectory>
  <resources>
   <resource>
    <directory>d:\users\a\workspaces\myeclipse 2015\hellocetc\src\main\resources</directory>
   </resource>
  </resources>
  <testresources>
   <testresource>
    <directory>d:\users\a\workspaces\myeclipse 2015\hellocetc\src\test\resources</directory>
   </testresource>
  </testresources>
  <directory>d:\users\a\workspaces\myeclipse 2015\hellocetc\target</directory>
  <finalname>hellocetc-0.0.1-snapshot</finalname>
  <pluginmanagement>
   <plugins>
    <plugin>
     <artifactid>maven-antrun-plugin</artifactid>
     <version>1.3</version>
    </plugin>
    <plugin>
     <artifactid>maven-assembly-plugin</artifactid>
     <version>2.2-beta-5</version>
    </plugin>
    <plugin>
     <artifactid>maven-dependency-plugin</artifactid>
     <version>2.8</version>
    </plugin>
    <plugin>
     <artifactid>maven-release-plugin</artifactid>
     <version>2.3.2</version>
    </plugin>
    <plugin>
     <artifactid>maven-jar-plugin</artifactid>
     <version>2.4</version>
     <configuration>
      <source>1.8</source>
      <target>1.8</target>
      <archive>
       <manifest>
        <mainclass>com.cetc.di.hellocetc.app</mainclass>
        <addclasspath>true</addclasspath>
        <classpathprefix>lib/</classpathprefix>
       </manifest>
      </archive>
      <classesdirectory />
     </configuration>
    </plugin>
   </plugins>
  </pluginmanagement>
  <plugins>
   <plugin>
    <artifactid>maven-clean-plugin</artifactid>
    <version>2.5</version>
    <executions>
     <execution>
      <id>default-clean</id>
      <phase>clean</phase>
      <goals>
       <goal>clean</goal>
      </goals>
     </execution>
    </executions>
   </plugin>
   <plugin>
    <artifactid>maven-resources-plugin</artifactid>
    <version>2.6</version>
    <executions>
     <execution>
      <id>default-testresources</id>
      <phase>process-test-resources</phase>
      <goals>
       <goal>testresources</goal>
      </goals>
     </execution>
     <execution>
      <id>default-resources</id>
      <phase>process-resources</phase>
      <goals>
       <goal>resources</goal>
      </goals>
     </execution>
    </executions>
   </plugin>
   <plugin>
    <artifactid>maven-jar-plugin</artifactid>
    <version>2.4</version>
    <executions>
     <execution>
      <id>default-jar</id>
      <phase>package</phase>
      <goals>
       <goal>jar</goal>
      </goals>
      <configuration>
       <source>1.8</source>
       <target>1.8</target>
       <archive>
        <manifest>
         <mainclass>com.cetc.di.hellocetc.app</mainclass>
         <addclasspath>true</addclasspath>
         <classpathprefix>lib/</classpathprefix>
        </manifest>
       </archive>
       <classesdirectory />
      </configuration>
     </execution>
    </executions>
    <configuration>
     <source>1.8</source>
     <target>1.8</target>
     <archive>
      <manifest>
       <mainclass>com.cetc.di.hellocetc.app</mainclass>
       <addclasspath>true</addclasspath>
       <classpathprefix>lib/</classpathprefix>
      </manifest>
     </archive>
     <classesdirectory />
    </configuration>
   </plugin>
   <plugin>
    <artifactid>maven-compiler-plugin</artifactid>
    <version>3.1</version>
    <executions>
     <execution>
      <id>default-compile</id>
      <phase>compile</phase>
      <goals>
       <goal>compile</goal>
      </goals>
     </execution>
     <execution>
      <id>default-testcompile</id>
      <phase>test-compile</phase>
      <goals>
       <goal>testcompile</goal>
      </goals>
     </execution>
    </executions>
   </plugin>
   <plugin>
    <artifactid>maven-surefire-plugin</artifactid>
    <version>2.12.4</version>
    <executions>
     <execution>
      <id>default-test</id>
      <phase>test</phase>
      <goals>
       <goal>test</goal>
      </goals>
     </execution>
    </executions>
   </plugin>
   <plugin>
    <artifactid>maven-install-plugin</artifactid>
    <version>2.4</version>
    <executions>
     <execution>
      <id>default-install</id>
      <phase>install</phase>
      <goals>
       <goal>install</goal>
      </goals>
     </execution>
    </executions>
   </plugin>
   <plugin>
    <artifactid>maven-deploy-plugin</artifactid>
    <version>2.7</version>
    <executions>
     <execution>
      <id>default-deploy</id>
      <phase>deploy</phase>
      <goals>
       <goal>deploy</goal>
      </goals>
     </execution>
    </executions>
   </plugin>
   <plugin>
    <artifactid>maven-site-plugin</artifactid>
    <version>3.3</version>
    <executions>
     <execution>
      <id>default-site</id>
      <phase>site</phase>
      <goals>
       <goal>site</goal>
      </goals>
      <configuration>
       <outputdirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\target\site</outputdirectory>
       <reportplugins>
        <reportplugin>
         <groupid>org.apache.maven.plugins</groupid>
         <artifactid>maven-project-info-reports-plugin</artifactid>
        </reportplugin>
       </reportplugins>
      </configuration>
     </execution>
     <execution>
      <id>default-deploy</id>
      <phase>site-deploy</phase>
      <goals>
       <goal>deploy</goal>
      </goals>
      <configuration>
       <outputdirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\target\site</outputdirectory>
       <reportplugins>
        <reportplugin>
         <groupid>org.apache.maven.plugins</groupid>
         <artifactid>maven-project-info-reports-plugin</artifactid>
        </reportplugin>
       </reportplugins>
      </configuration>
     </execution>
    </executions>
    <configuration>
     <outputdirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\target\site</outputdirectory>
     <reportplugins>
      <reportplugin>
       <groupid>org.apache.maven.plugins</groupid>
       <artifactid>maven-project-info-reports-plugin</artifactid>
      </reportplugin>
     </reportplugins>
    </configuration>
   </plugin>
  </plugins>
 </build>
 <reporting>
  <outputdirectory>d:\users\a\workspaces\myeclipse 2015\hellocetc\target\site</outputdirectory>
 </reporting>
</project>

[info] ------------------------------------------------------------------------
[info] build success
[info] ------------------------------------------------------------------------
[info] total time: 0.526 s
[info] finished at: 2015-11-18t20:05:12+08:00
[info] final memory: 10m/245m
[info] ------------------------------------------------------------------------

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