maven 使用assembly 进行打包的方法

1. pom 中添加assembly 插件

要使用assembly 进项编译打包，首先主要在pom 中的build中添加插件信息，具体如图下所示：

<build>
  <finalName>${project.artifactId}</finalName>
  <sourceDirectory>src/main/java</sourceDirectory>
  <resources>
    <resource>
      <directory>src/main/resources</directory>
      <filtering>true</filtering>
      <includes>
        <include>**/*.xml</include>
        <include>**/*.properties</include>
      </includes>
    </resource>
    <resource>
      <directory>${profile.dir}</directory>
      <filtering>true</filtering>
    </resource>
  </resources>

  <plugins>
    <!-- compiler插件参数设置，指定编码 -->
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-compiler-plugin</artifactId>
      <version>3.1</version>
      <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <encoding>utf-8</encoding>
      </configuration>
    </plugin>

    <!--  这个插件是关键  -->
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-assembly-plugin</artifactId>
      <configuration>
        <!--  这个是assembly 所在位置 -->
        <descriptor>src/main/assembly/assembly.xml</descriptor>
      </configuration>
      <executions>
        <execution>
          <id>make-assembly</id>
          <phase>package</phase>
          <goals>
            <goal>single</goal>
          </goals>
        </execution>
      </executions>
    </plugin>
  </plugins>
</build>

2. 创建assembly文件夹和assembly.xml文件

创建assembly文件夹和assembly.xml文件, 这个样子创建主要是规范。

在pom 中已经介绍assembly.xml 位置。

<!--  这个是assembly 所在位置 -->
<descriptor>src/main/assembly/assembly.xml</descriptor>

创建assembly.xml 文件后添加如下内容：

<assembly>
  <formats>
    <!--支持 zip，tar，tar.gz，tar.bz2，jar，dir，war 等 -->
    <format>tar.gz</format>
    <format>zip</format>
    <format>dir</format>
  </formats>
  <includeBaseDirectory>false</includeBaseDirectory>
  <fileSets>
    <fileSet>
      <directory>src/main/resources</directory>
      <outputDirectory>conf</outputDirectory>
      <fileMode>0644</fileMode>
    </fileSet>
    <fileSet>
      <directory>${profile.dir}</directory>
      <outputDirectory>conf</outputDirectory>
      <!-- 表示的是包含下面格式的资源文件 -->
      <includes>
        <include>*.xml</include>
        <include>*.properties</include>
        <include>**/*.xml</include>
        <include>**/*.properties</include>
      </includes>
      <fileMode>0644</fileMode>
    </fileSet>
    <fileSet>
      <directory>src/main/assembly/bin</directory>
      <outputDirectory>bin</outputDirectory>
      <fileMode>0755</fileMode>
    </fileSet>
  </fileSets>
  <dependencySets>
    <dependencySet>
      <outputDirectory>lib</outputDirectory>
    </dependencySet>
  </dependencySets>
</assembly>

fileMode 官方解释：

Similar to a UNIX permission, sets the file mode of the files included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0644 translates to User read-write, Group and Other

上述的三个fileSet 分别是将resource 下的资源打包到config 目录下，将assembly下的bin 启动相关脚本打包到bin 目录下，将maven项目依赖的所有jar 包，打包到lib 中。

具体结构如下图所示：

参考地址：
http://maven.apache.org/plugins/maven-assembly-plugin/assembly.html

zip.xml 文件配置如下

<assembly 
  xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd"> 
  <id>release</id> 
  <formats> 
    <format>zip</format> 
  </formats> 
  <fileSets> 
    <fileSet> 
      <directory>${project.basedir}\src\main\config</directory> 
      <!-- 过滤 --> 
      <excludes> 
        <exclude>*.xml</exclude> 
      </excludes> 
      <outputDirectory>\</outputDirectory> 
    </fileSet> 
  </fileSets> 
   
  <dependencySets> 
    <dependencySet> 
      <useProjectArtifact>true</useProjectArtifact> 
      <outputDirectory>lib</outputDirectory><!-- 将scope为runtime的依赖包打包到lib目录下。 --> 
      <scope>runtime</scope> 
    </dependencySet> 
  </dependencySets> 
</assembly>

例：

<assembly>
 <id>assembly</id>
 <formats>
 <format>tar.gz</format>
 </formats>
 <includeBaseDirectory>true</includeBaseDirectory>
 <fileSets>
 <fileSet>
  <directory>${project.build.directory}/resources</directory>
  <outputDirectory>resources</outputDirectory>
  <fileMode>0755</fileMode>
 </fileSet>
 <fileSet>
  <directory>${project.build.directory}/config</directory>
  <outputDirectory>config</outputDirectory>
  <fileMode>0644</fileMode>
 </fileSet>
 <fileSet>
  <directory>${project.build.directory}/bin</directory>
  <outputDirectory>bin</outputDirectory>
  <fileMode>0755</fileMode>
 </fileSet>
 </fileSets>
 <dependencySets>
 <dependencySet>
  <outputDirectory>lib</outputDirectory>
 </dependencySet>
 </dependencySets>
</assembly>

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