Maven打包配置文件

通常我们会有多个系统环境，对应有不同的配置文件，通常在maven中我们打包只有jar, pom, maven-plugins, war and ear. 为了可以同时打包不同环境的配置文件，我们选择maven-assembly-plugin，把指定路径下的各种环境配置打包成zip和tar.gz包。
文件夹结构如下：

// mave standard folders
src/main/java
....
//config folder and files for different env
conf/dev (properties and log4j xml files)
conf/local
conf/uat
conf/prod
//config assembly files for different env
src/main/assembly/config/dev.xml
src/main/assembly/config/local.xml
src/main/assembly/config/uat.xml
src/main/assembly/config/prod.xml

maven pom实现：

<properties>
   <!-- -->
   <assemble.directory>${basedir}/conf</assemble.directory>
</properties>
<plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <id>package-config</id>
                        <!-- 绑定到package生命周期阶段上 -->
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                        <configuration>
                            <descriptorSourceDirectory> <!--描述文件夹路径-->                                <descriptor>${basedir}/src/main/assembly/config</descriptorSourceDirectory>
                            </descriptors>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

assembly 配置文件实现(dev为例)

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3 http://maven.apache.org/xsd/assembly-1.1.3.xsd">
    <id>config-dev</id>
    <formats>
        <format>zip</format>
        <format>tar.gz</format>
    </formats>
     <includeBaseDirectory>false</includeBaseDirectory>
    <fileSets>
        <fileSet>
            <directory>${assemble.directory}/dev</directory>
            <outputDirectory>/${project.version}</outputDirectory>
            <lineEnding>unix</lineEnding>
            <fileMode>0644</fileMode>
            <directoryMode>0755</directoryMode>
            <includes>
                <include>**/*</include>
            </includes>
        </fileSet>
    </fileSets>
 </assembly>

如果需要对配置文件做处理，那么还需要使用maven-release-plugin对src/conf/下面的文件夹内容做处理，比如拷贝conf到target对应的folder，这样assembly的diretory也要跟着修改。

<plugin> 
  <groupId>org.apache.maven.plugins</groupId> 
  <artifactId>maven-resources-plugin</artifactId> 
  <version>2.5</version> 
  <executions> 
   <execution> 
     <id>dev-config</id> 
     <goals> 
         <goal>copy-resources</goal> 
     </goals>   
     <configuration> 
              <outputDirectory>${project.build.directory}/deploy/config-dev</outputDirectory> 
              <resources>          
                <resource> 
                  <directory>${basedir}/conf/dev</directory> 
                  <filtering>true</filtering>
                  <includes>
                     <include>*.properties</include>
                     <include>*.xml</include>
                  </include>
                </resource> 
              </resources>              
            </configuration>  
   </execution> 
  </executions> 
</plugin>