【发布时间】：2012-05-31 23:35:04
【问题描述】：
我正在尝试设置一个基于 maven 的小型项目结构，如下所示
Maven 结构
Project
\pom.xml
\Hello world portlet
\pom.xml
\Second Portlet
\pom.xml
如您所见，Project 下有几个 portlet（在未来的主题、hook 等相同的结构下）。
现在在单个 portlet 中，我可以运行与 liferay 相关的 maven 任务，通过点击 mvn clean compile package liferay:deploy 单独部署它们 现在我正在寻找使用相同的命令构建和部署所有与 Liferay portlet 相关的工件。在这种情况下，我收到父项目本身的错误（子 Liferay 模块正在构建良好）。我不确定为什么它也尝试构建父项目，尽管我的意图只是运行 liferay:deploy 相关任务。
子 POM
这里是child的pom.xml（这个是创建portlet时默认生成的）
<?xml version="1.0"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.test</groupId>
<artifactId>helloworld</artifactId>
<packaging>war</packaging>
<name>hello-world-portlet Portlet</name>
<version>1.0</version>
<build>
<plugins>
<plugin>
<groupId>com.liferay.maven.plugins</groupId>
<artifactId>liferay-maven-plugin</artifactId>
<version>${liferay.version}</version>
<configuration>
<autoDeployDir>${liferay.auto.deploy.dir}</autoDeployDir>
<liferayVersion>${liferay.version}</liferayVersion>
<apiDir>${service.api.dir}</apiDir>
<warFileName>${war.file.name}</warFileName>
<pluginType>portlet</pluginType>
</configuration>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<encoding>UTF-8</encoding>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${service.api.dir}</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>portal-service</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>util-bridges</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>util-taglib</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>util-java</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.portlet</groupId>
<artifactId>portlet-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<properties>
<liferay.auto.deploy.dir>D:/Projects/Bosch/Liferay Developer Studio/liferay-portal-6.1.10-ee-ga1/deploy</liferay.auto.deploy.dir>
<liferay.version>6.1.10</liferay.version>
<liferay.maven.version>6.1.0</liferay.maven.version>
<war.file.name>hellow-world-portlet.war</war.file.name>
<service.api.dir>src/main/java-service-api</service.api.dir>
</properties>
</project>
父 POM
这是父级的 pom.xml。 （这是我手动创建的，并在其中添加了模块）
<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.test</groupId>
<artifactId>MvnProject</artifactId>
<version>1.0</version>
<packaging>pom</packaging>
<!-- 3. List all children projects names (name is directory name as well). -->
<modules>
<module>ipc-portlet</module>
<module>helloworld</module>
</modules>
<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>
</project>
错误
这是我遇到的错误
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] ipc-portlet Portlet ............................... SUCCESS [5.361s]
[INFO] hello-world-portlet Portlet ....................... SUCCESS [1.047s]
[INFO] MvnProject ........................................ FAILURE [2.500s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.236s
[INFO] Finished at: Fri May 25 16:49:12 IST 2012
[INFO] Final Memory: 7M/14M
[INFO] ------------------------------------------------------------------------
[ERROR] No plugin found for prefix 'liferay' in the current project and in the p
lugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the re
positories [local (C:\Documents and Settings\sandeep.nair\.m2\repository), centr
al (http://repo.maven.apache.org/maven2)] -> [Help 1]
如您所见，对于我想要的子模块，构建是成功的。但它也试图为父母执行它。如何避免发生第三次构建，这是父项目。
【问题讨论】：
-
在stackoverflow.com/questions/1501294/…看到非常goog的答案