我有一个Maven项目,有4个组件Web,Persistence,Common和Other。
我的POM文件中的相关内容:
父POM:
<groupId>com.test</groupId>
<artifactId>test</artifactId>
<packaging>pom</packaging>
<version>0.0.1-SNAPSHOT</version>
<modules>
<module>components/TestWeb</module>
<module>components/TestOther</module>
<module>components/TestPersistence</module>
<module>components/TestCommon</module>
</modules>
<build>
<defaultGoal>package</defaultGoal>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.1</version>
<configuration>
<dependentWarExcludes>
**/hibernate.cfg.xml,**/sql-map-config.xml,**/web.xml,WEB-INF/classes/META-INF/**
</dependentWarExcludes>
</configuration>
</plugin>
</plugins>
</build>
常见的pom:
<modelVersion>4.0.0</modelVersion>
<artifactId>test-common</artifactId>
<packaging>jar</packaging>
<version>0.0.1-SNAPSHOT</version>
<parent>
<groupId>com.test</groupId>
<artifactId>test</artifactId>
<relativePath>../../pom.xml</relativePath>
<version>0.0.1-SNAPSHOT</version>
</parent>
persistence pom:
<modelVersion>4.0.0</modelVersion>
<groupId>com.test</groupId>
<artifactId>test-persistence</artifactId>
<packaging>jar</packaging>
<version>0.0.1-SNAPSHOT</version>
<parent>
<groupId>com.test</groupId>
<artifactId>test</artifactId>
<relativePath>../../pom.xml</relativePath>
<version>0.0.1-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>com.test</groupId>
<artifactId>test-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
web pom:
<modelVersion>4.0.0</modelVersion>
<groupId>com.test</groupId>
<artifactId>test-web</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>TestWeb</name>
<parent>
<groupId>com.test</groupId>
<artifactId>test</artifactId>
<relativePath>../../pom.xml</relativePath>
<version>0.0.1-SNAPSHOT</version>
</parent>
<dependency>
<groupId>com.test</groupId>
<artifactId>test-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.test</groupId>
<artifactId>test-persistence</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.test</groupId>
<artifactId>test-other</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
也许我在复制和粘贴中弄坏了一些东西,但XML是有效的。
mvn war:war
,WAR文件将生成为空。如何解决这个问题?
答案 0 :(得分:1)
在根项目中使用插件不起作用。你可以在这里配置插件,比如
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.2</version>
<configuration>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
但是它们仍然必须在子项目中被引用才能激活(除了作为默认进程一部分的插件,例如maven-compiler-plugin和maven-resource-plugin)。
因此,您可以将war-plugin配置移动到根项目中的pluginManagement
并包含
<build>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.1</version>
<execution>
<goals>...</goals>
</execution>
</plugin>
</build>
在你的战争项目中或者将整个配置移动到战争中。
附加说明: 确保根pom中模块的顺序与项目之间的依赖关系一致(在您的情况下,只需颠倒顺序)。
答案 1 :(得分:1)
我创建了一个类似的项目结构并粘贴了您提供的POM但无法重现该问题。从聚合pom运行mvn package
只是按预期工作:
$ mvn package [INFO] Scanning for projects... ... [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] ------------------------------------------------------------------------ [INFO] Unnamed - com.test:test:pom:0.0.1-SNAPSHOT ............ SUCCESS [5.819s] [INFO] Unnamed - com.test:test-common:jar:0.0.1-SNAPSHOT ..... SUCCESS [3.343s] [INFO] Unnamed - com.test:test-persistence:jar:0.0.1-SNAPSHOT SUCCESS [0.136s] [INFO] Unnamed - com.test:test-other:jar:0.0.1-SNAPSHOT ...... SUCCESS [0.079s] [INFO] Unnamed - com.test:test-web:war:0.0.1-SNAPSHOT ........ SUCCESS [1.899s] [INFO] ------------------------------------------------------------------------ [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESSFUL [INFO] ------------------------------------------------------------------------ ...
并产生以下结果:
$ tree . . ├── components │ ├── TestCommon │ │ ├── pom.xml │ │ ├── ... │ │ └── target │ │ ├── maven-archiver │ │ │ └── pom.properties │ │ └── test-common-0.0.1-SNAPSHOT.jar │ ├── TestOther │ │ ├── pom.xml │ │ ├── ... │ │ └── target │ │ ├── maven-archiver │ │ │ └── pom.properties │ │ └── test-other-0.0.1-SNAPSHOT.jar │ ├── TestPersistence │ │ ├── pom.xml │ │ ├── ... │ │ └── target │ │ ├── maven-archiver │ │ │ └── pom.properties │ │ └── test-persistence-0.0.1-SNAPSHOT.jar │ └── TestWeb │ ├── pom.xml │ ├── src │ │ └── main │ │ └── webapp │ │ ├── index.jsp │ │ └── WEB-INF │ │ └── web.xml │ └── target │ ├── maven-archiver │ │ └── pom.properties │ ├── test-web-0.0.1-SNAPSHOT │ │ ├── index.jsp │ │ ├── META-INF │ │ └── WEB-INF │ │ ├── classes │ │ ├── lib │ │ │ ├── test-common-0.0.1-SNAPSHOT.jar │ │ │ ├── test-other-0.0.1-SNAPSHOT.jar │ │ │ └── test-persistence-0.0.1-SNAPSHOT.jar │ │ └── web.xml │ └── test-web-0.0.1-SNAPSHOT.war └── pom.xml
所以你的问题必须与你的WAR项目本身,它的结构或类似的东西有关。在运行war:war
时,请显示其结构和Maven的输出。
顺便说一下,POM在多模块构建中通常应该是这样的:
<project>
<modelVersion>4.0.0</modelVersion>
<!--groupId>com.test</groupId--> <!-- unnecessary, you inherit it -->
<artifactId>test-web</artifactId>
<packaging>war</packaging>
<!--version>0.0.1-SNAPSHOT</version--> <!-- unnecessary, you inherit it -->
<parent>
<groupId>com.test</groupId>
<artifactId>test</artifactId>
<relativePath>../../pom.xml</relativePath>
<version>0.0.1-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>${project.groupId}</groupId> <!-- DRY, use built-in properties -->
<artifactId>test-common</artifactId>
<version>${project.version}</version> <!-- DRY, use built-in properties -->
</dependency>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>test-persistence</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>test-other</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</project>
另一件事,来自父项目的war插件配置继承(您可以通过在Web模块中运行help:effective-pom
来检查)但是在它中配置它是有意义的网络模块本身。