说完了settings.xml配置,下来说一下maven2的主要配置pom.xml 什么是pom? pom作为项目对象模型。通过xml表示maven项目,使用pom.xml来实现。主要描述了项目:包括配置文件;开发者需要遵循的规则,缺陷管理系统,组织和licenses,项目的url,项目的依赖性,以及其他所有的项目相关因素。 快速察看: <project> <modelVersion>4.0.0</modelVersion> <!-- The Basics --> <groupId>...</groupId> <artifactId>...</artifactId> <version>...</version> <packaging>...</packaging> <dependencies>...</dependencies> <parent>...</parent> <dependencyManagement>...</dependencyManagement> <modules>...</modules> <properties>...</properties> <!-- Build Settings --> <build>...</build> <reporting>...</reporting> <!-- More Project Information --> <name>...</name> <description>...</description> <url>...</url> <inceptionYear>...</inceptionYear> <licenses>...</licenses> <organization>...</organization> <developers>...</developers> <contributors>...</contributors> <!-- Environment Settings --> <issueManagement>...</issueManagement> <ciManagement>...</ciManagement> <mailingLists>...</mailingLists> <scm>...</scm> <prerequisites>...</prerequisites> <repositories>...</repositories> <pluginRepositories>...</pluginRepositories> <distributionManagement>...</distributionManagement> <profiles>...</profiles> </project> 基本内容: POM包括了所有的项目信息。 maven 相关: pom定义了最小的maven2元素,允许groupId,artifactId,version。所有需要的元素
主要为依赖,继承,合成 依赖关系: <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.0</version> <type>jar</type> <scope>test</scope> <optional>true</optional> </dependency> ... </dependencies>
可以通过以下方式进行安装:
外在告诉maven你只包括指定的项目,不包括相关的依赖。此因素主要用于解决版本冲突问题 <dependencies> <dependency> <groupId>org.apache.maven</groupId> <artifactId>maven-embedder</artifactId> <version>2.0</version> <exclusions> <exclusion> <groupId>org.apache.maven</groupId> <artifactId>maven-core</artifactId> </exclusion> </exclusions> </dependency> 表示项目maven-embedder需要项目maven-core,但我们不想引用maven-core 继承关系 另一个强大的变化,maven带来的是项目继承。主要的设置: 定义父项目 <project> <modelVersion>4.0.0</modelVersion> <groupId>org.codehaus.mojo</groupId> <artifactId>my-parent</artifactId> <version>2.0</version> <packaging>pom</packaging> </project> packaging 类型,需要pom用于parent和合成多个项目。我们需要增加相应的值给父pom,用于子项目继承。主要的元素如下:
<modelVersion>4.0.0</modelVersion> <parent> <groupId>org.codehaus.mojo</groupId> <artifactId>my-parent</artifactId> <version>2.0</version> <relativePath>../my-parent</relativePath> </parent> <artifactId>my-project</artifactId> </project> relativePath可以不需要,但是用于指明parent的目录,用于快速查询。 dependencyManagement: 用于父项目配置共同的依赖关系,主要配置依赖包相同因素,如版本,scope。 合成(或者多个模块) 一个项目有多个模块,也叫做多重模块,或者合成项目。 如下的定义: <project> <modelVersion>4.0.0</modelVersion> <groupId>org.codehaus.mojo</groupId> <artifactId>my-parent</artifactId> <version>2.0</version> <modules> <module>my-project1<module> <module>my-project2<module> </modules> </project> build 设置 主要用于编译设置,包括两个主要的元素,build和report build 主要分为两部分,基本元素和扩展元素集合 注意:包括项目build和profile build <project> <!-- "Project Build" contains more elements than just the BaseBuild set --> <build>...</build> <profiles> <profile> <!-- "Profile Build" contains a subset of "Project Build"s elements --> <build>...</build> </profile> </profiles> </project> 基本元素 <build> <defaultGoal>install</defaultGoal> <directory>${basedir}/target</directory> <finalName>${artifactId}-${version}</finalName> <filters> <filter>filters/filter1.properties</filter> </filters> ... </build>
资源(resources) 你项目中需要指定的资源。如spring配置文件,log4j.properties <project> <build> ... <resources> <resource> <targetPath>META-INF/plexus</targetPath> <filtering>false</filtering> <directory>${basedir}/src/main/plexus</directory> <includes> <include>configuration.xml</include> </includes> <excludes> <exclude>**/*.properties</exclude> </excludes> </resource> </resources> <testResources> ... </testResources> ... </build> </project>
在build时,执行的插件,比较有用的部分,如使用jdk 5.0编译等等 <project> <build> ... <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.0</version> <extensions>false</extensions> <inherited>true</inherited> <configuration> <classifier>test</classifier> </configuration> <dependencies>...</dependencies> <executions>...</executions> </plugin> </plugins> </build> </project>
<plugin> <artifactId>maven-antrun-plugin</artifactId> <executions> <execution> <id>echodir</id> <goals> <goal>run</goal> </goals> <phase>verify</phase> <inherited>false</inherited> <configuration> <tasks> <echo>Build Dir: ${project.build.directory}</echo> </tasks> </configuration> </execution> </executions> </plugin> 说明:
插件管理 pluginManagement:插件管理以同样的方式包括插件元素,用于在特定的项目中配置。所有继承于此项目的子项目都能使用。主要定义插件的共同元素 扩展元素集合 主要包括以下的元素: Directories 用于设置各种目录结构,如下: <build> <sourceDirectory>${basedir}/src/main/java</sourceDirectory> <scriptSourceDirectory>${basedir}/src/main/scripts</scriptSourceDirectory> <testSourceDirectory>${basedir}/src/test/java</testSourceDirectory> <outputDirectory>${basedir}/target/classes</outputDirectory> <testOutputDirectory>${basedir}/target/test-classes</testOutputDirectory> ... </build> Extensions 表示需要扩展的插件,必须包括进相应的build路径。 <project> <build> ... <extensions> <extension> <groupId>org.apache.maven.wagon</groupId> <artifactId>wagon-ftp</artifactId> <version>1.0-alpha-3</version> </extension> </extensions> ... </build> </project> Reporting 用于在site阶段输出报表。特定的maven 插件能输出相应的定制和配置报表。 <reporting> <plugins> <plugin> <outputDirectory>${basedir}/target/site</outputDirectory> <artifactId>maven-project-info-reports-plugin</artifactId> <reportSets> <reportSet></reportSet> </reportSets> </plugin> </plugins> </reporting> Report Sets 用于配置不同的目标,应用于不同的报表 <reporting> <plugins> <plugin> ... <reportSets> <reportSet> <id>sunlink</id> <reports> <report>javadoc</report> </reports> <inherited>true</inherited> <configuration> <links> <link>http://java./j2se/1.5.0/docs/api/</link> </links> </configuration> </reportSet> </reportSets> </plugin> </plugins> </reporting> 更多的项目信息 name:项目除了artifactId外,可以定义多个名称 description: 项目描述 url: 项目url inceptionYear:创始年份 Licenses <licenses> <license> <name>Apache 2</name> <url>http://www./licenses/LICENSE-2.0.txt</url> <distribution>repo</distribution> <comments>A business-friendly OSS license</comments> </license> </licenses> Organization 配置组织信息 <organization> <name>Codehaus Mojo</name> <url>http://mojo.</url> </organization> Developers 配置开发者信息 <developers> <developer> <id>eric</id> <name>Eric</name> <email>eredmond@</email> <url>http://eric.</url> <organization>Codehaus</organization> <organizationUrl>http://mojo.</organizationUrl> <roles> <role>architect</role> <role>developer</role> </roles> <timezone>-6</timezone> <properties> <picUrl>http:///prv4t</picUrl> </properties> </developer> </developers> Contributors <contributors> <contributor> <name>Noelle</name> <email>some.name@gmail.com</email> <url>http://</url> <organization>Noelle Marie</organization> <organizationUrl>http://</organizationUrl> <roles> <role>tester</role> </roles> <timezone>-5</timezone> <properties> <gtalk>some.name@gmail.com</gtalk> </properties> </contributor> </contributors> 环境设置 Issue Management 定义相关的bug跟踪系统,如bugzilla,testtrack,clearQuest等 <issueManagement> <system>Bugzilla</system> <url>http://127.0.0.1/bugzilla</url> </issueManagement> Continuous Integration Management 连续整合管理,基于triggers或者timings <ciManagement> <system>continuum</system> <url>http://127.0.0.1:8080/continuum</url> <notifiers> <notifier> <type>mail</type> <sendOnError>true</sendOnError> <sendOnFailure>true</sendOnFailure> <sendOnSuccess>false</sendOnSuccess> <sendOnWarning>false</sendOnWarning> <configuration><address>continuum@127.0.0.1</address></configuration> </notifier> </notifiers> </ciManagement> Mailing Lists <mailingLists> <mailingList> <name>User List</name> <subscribe>user-subscribe@127.0.0.1</subscribe> <unsubscribe>user-unsubscribe@127.0.0.1</unsubscribe> <post>user@127.0.0.1</post> <archive>http://127.0.0.1/user/</archive> <otherArchives> <otherArchive>http://base.google.com/base/1/127.0.0.1</otherArchive> </otherArchives> </mailingList> </mailingLists> SCM 软件配置管理,如cvs 和svn <scm> <connection>scm:svn:http://127.0.0.1/svn/my-project</connection> <developerConnection>scm:svn:https://127.0.0.1/svn/my-project</developerConnection> <tag>HEAD</tag> <url>http://127.0.0.1/websvn/my-project</url> </scm> Repositories 配置同setting.xml中的开发库 Plugin Repositories 配置同 repositories Distribution Management 用于配置分发管理,配置相应的产品发布信息,主要用于发布,在执行mvn deploy后表示要发布的位置 1 配置到文件系统 <distributionManagement> <repository> <id>proficio-repository</id> <name>Proficio Repository</name> <url>file://${basedir}/target/deploy</url> </repository> </distributionManagement> 2 使用ssh2配置 <distributionManagement> <repository> <id>proficio-repository</id> <name>Proficio Repository</name> <url>scp://sshserver.yourcompany.com/deploy</url> </repository> </distributionManagement> 3 使用sftp配置 <distributionManagement> <repository> <id>proficio-repository</id> <name>Proficio Repository</name> <url>sftp://ftpserver.yourcompany.com/deploy</url> </repository> </distributionManagement> 4 使用外在的ssh配置 编译扩展用于指定使用wagon外在ssh提供,用于提供你的文件到相应的远程服务器。 <distributionManagement> <repository> <id>proficio-repository</id> <name>Proficio Repository</name> <url>scpexe://sshserver.yourcompany.com/deploy</url> </repository> </distributionManagement> <build> <extensions> <extension> <groupId>org.apache.maven.wagon</groupId> <artifactId>wagon-ssh-external</artifactId> <version>1.0-alpha-6</version> </extension> </extensions> </build> 5 使用ftp配置 <distributionManagement> <repository> <id>proficio-repository</id> <name>Proficio Repository</name> <url>ftp://ftpserver.yourcompany.com/deploy</url> </repository> </distributionManagement> <build> <extensions> <extension> <groupId>org.apache.maven.wagon</groupId> <artifactId>wagon-ftp</artifactId> <version>1.0-alpha-6</version> </extension> </extensions> </build> repository 对应于你的开发库,用户信息通过settings.xml中的server取得 Profiles 类似于settings.xml中的profiles,增加了几个元素,如下的样式: <profiles> <profile> <id>test</id> <activation>...</activation> <build>...</build> <modules>...</modules> <repositories>...</repositories> <pluginRepositories>...</pluginRepositories> <dependencies>...</dependencies> <reporting>...</reporting> <dependencyManagement>...</dependencyManagement> <distributionManagement>...</distributionManagement> </profile> </profiles> |
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