SpringCloud maven-assembly-plugin 多级目录打包的实现
作者：Mr-Wanter
1、spring-boot-maven-plugin
springboot默认打包工具为spring-boot-maven-plugin
pom配置：
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.gsafety.bg.enterprise.EnterpriseApplication</mainClass>
<layout>ZIP</layout>
<!-- 打增量包时需要includes部分， 要打全量包删除includes -->
<includes>
<include>
<groupId>com.gsafety.bg</groupId>
<artifactId>enterprise-controller</artifactId>
</include>
<include>
<groupId>com.gsafety.bg</groupId>
<artifactId>enterprise-service</artifactId>
</include>
<include>
<groupId>com.gsafety.bg</groupId>
<artifactId>enterprise-dao</artifactId>
</include>
</includes>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
打包后的目录结构：
BOOT-INF内包含目录：lib（enterprise-service-1.0.0.jar、enterprise-dao-1.0.0.jar、enterprise-controller-1.0.0.jar）、classes、classpath.idx
2、maven-assembly-plugin
maven-assembly-plugin 插件的主要作用是允许用户将项目输出与它的依赖项、模块、站点文档、和其他文件一起组装成一个可分发的归档文件，简单的说，就是自定义打包的工具，有自己的配置文件（Assembly描述符文件）。微服务使用这个插件的概率比较高，平时普通的项目不需要这样的实现方式。
pom配置：
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4.1</version>
<configuration>
<finalName>enterprise</finalName>
<encoding>utf-8</encoding>
<descriptors>
<descriptor>src/main/assembly/assembly.xml</descriptor>
</descriptors>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
assembly.xml
全部可设置节点可参考官网：http://maven.apache.org/plugins/maven-assembly-plugin/assembly.html
<assembly>
<id>1.0</id>
<formats>
<format>tar.gz</format>
</formats>
<includeBaseDirectory>true</includeBaseDirectory>
<!-- 项目所需lib包-->
<!-- <dependencySets>-->
<!-- <!–把依赖都打包进libs文件夹–>-->
<!-- <dependencySet>-->
<!-- <useProjectArtifact>true</useProjectArtifact>-->
<!-- <outputDirectory>libs</outputDirectory>-->
<!-- <scope>runtime</scope>-->
<!-- </dependencySet>-->
<!-- </dependencySets>-->
<fileSets>
<!--打包启动文件到deploy目录-->
<fileSet>
<!--需要打包的文件所在目录 即start.sh-->
<directory>src/main/assembly/bin</directory>
<!--要打包到的地址-->
<outputDirectory>deploy</outputDirectory>
<!--linux权限-->
<fileMode>0755</fileMode>
</fileSet>
<!--打包可执行jar到application-server目录-->
<fileSet>
<directory>target</directory>
<outputDirectory>application-server</outputDirectory>
<includes>
<include>*.jar</include>
</includes>
</fileSet>
<!--打包src/main/resources到logs/enterprise目录-->
<fileSet>
<directory>src/main/resources</directory>
<outputDirectory>logs/enterprise</outputDirectory>
<fileMode>0755</fileMode>
<!--打包不包含src/main/resources所有文件，即生成logs/enterprise空目录-->
<excludes>
<exclude>**/*</exclude>
</excludes>
</fileSet>
</fileSets>
</assembly>
打包后的目录结构：
查看application-server文件夹内可执行文件解压目录：
发现与spring-boot-maven-plugin打包后的目录不一致，明显缺少lib内的三个jar和其他一些文件
3、maven-assembly-plugin打包后的可执行文件缺失lib问题
修改pom文件：
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.gsafety.bg.enterprise.EnterpriseApplication</mainClass>
<layout>ZIP</layout>
<!-- 打增量包时需要includes部分， 要打全量包删除includes -->
<includes>
<include>
<groupId>com.gsafety.bg</groupId>
<artifactId>enterprise-controller</artifactId>
</include>
<include>
<groupId>com.gsafety.bg</groupId>
<artifactId>enterprise-service</artifactId>
</include>
<include>
<groupId>com.gsafety.bg</groupId>
<artifactId>enterprise-dao</artifactId>
</include>
</includes>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- 生成项目依赖到lib本地，并设置需要排除的jar-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>../../../lib</outputDirectory>
<!-- 需要排除的jar的 groupId -->
<excludeArtifactIds>
enterprise-controller,enterprise-service,enterprise-dao
</excludeArtifactIds>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4.1</version>
<configuration>
<finalName>enterprise</finalName>
<encoding>utf-8</encoding>
<descriptors>
<descriptor>src/main/assembly/assembly.xml</descriptor>
</descriptors>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
即plugins先引用spring-boot-maven-plugin 后引用maven-assembly-plugin，这样spring-boot-maven-plugin会将enterprise-service-1.0.0.jar、enterprise-dao-1.0.0.jar、enterprise-controller-1.0.0.jar三个jar打包到lib中，打包后maven-assembly-plugin就会将其打包进enterprise-1.0.tar.gz。
这样enterprise-1.0.tar.gz内就包含了启动文件（deploy）、可执行文件（application-server/enterprise-main-1.0.0.jar）、日志目录（logs/enterprise）,符合目前项目部署的目录结构。
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