Maven结构

Question

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

正如您所看到的，在Project下有几个portlet（在将来的主题中，钩子等在相同的结构下）。

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 来单独部署它们现在我希望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，我得到父项目本身的错误（子liferay模块正在建设正常）。我不知道为什么它也试图构建父项目，尽管我的目的只是运行liferay：在子项中部署相关任务。

Child POM

这是child的pom.xml（默认情况下是在创建portlet时生成的）

<?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

这是父母的pom.xml。（我创建了手动谷歌搜索并添加模块）

<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

这是我得到的错误

[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]

正如您所看到的，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。如何避免第三次构建发生，这是父项目。

Answer 1

您必须将自定义pluginGroup添加到settings.xml，如下所示：

<pluginGroups>
  <pluginGroup>com.liferay.maven.plugins</pluginGroup>
</pluginGroups>

然后你可以使用像liferay:deploy这样的短呼叫的第三方插件。请查看this了解更多详情。

Answer 2

当Maven针对具有子模块的项目执行时，Maven首先加载父POM并找到所有子模块POM。 Maven然后将所有这些项目POM放入称为Maven Reactor的东西中，该Reactor分析模块之间的依赖关系。 Reactor负责订购组件，以确保以正确的顺序编译和安装相互依赖的模块。最后，它使用相同的命令执行父项目。

子项目可以成功构建，因为您在子poms中声明了liferay插件，当它尝试对它失败的父项执行相同的命令时。

<强>解决方案：

选项1： 将这些liferay插件声明移至父pom

选项2： 关注@Michal Kalinowski方法

Answer 3

为了解决这个问题，我遵循了以下方法，并且它有效。我的项目结构：

--liferay-core
|
-- portlet-one
|
-- portlet-two
|
-- theme-one
|
-- hook-one

这里，liferay-core模块被定义为所有其他插件的父级，并且所有其他插件在liferay-core / pom.xml中定义为<module>。另外，liferay-core / pom.xml有liferay-maven-plugin的插件定义。同样，每个插件也有liferay-maven-plugin的插件定义。请参阅下面的liferay-core / pom.xml的pom.xml

<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>

<artifactId>liferay-core</artifactId>
    <groupId>xxxx</groupId>
<packaging>pom</packaging>
    <version>0.0.1-SNAPSHOT</version>
<name>liferay-plugins</name>

<modules>       
    <module>./../portlet-clientsearch</module>
    <module>./../portlet-permission</module>
    <module>./../qpt-theme</module>
    <module>./../hook-post-login</module>
    <module>./../hook-quote-portal-autologin</module>
    <module>./../hook-post-logout</module>
</modules>

<properties>
    <liferay.auto.deploy.dir>C:/liferay-portal-6.1.20-ee-ga2/deploy</liferay.auto.deploy.dir>
    <liferay.version>6.1.20</liferay.version>
</properties>

<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>
                <appServerDeployDir>${liferay.app.server.deploy.dir}</appServerDeployDir>
                <appServerLibGlobalDir>${liferay.app.server.lib.global.dir}</appServerLibGlobalDir>
                <appServerPortalDir>${liferay.app.server.portal.dir}</appServerPortalDir>
                <liferayVersion>${liferay.version}</liferayVersion>
                <pluginType>portlet</pluginType>
            </configuration>
        </plugin>
    </plugins>
</build>

父Pom与Liferay构建问题

Maven结构

Child POM

父POM

错误

3 个答案: