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，
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<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>
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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）：
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[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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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://www.cnblogs.com/justinzhang/p/4975727.html#top