• flatten-maven-plugin使用


    这篇文章主要介绍了flatten-maven-plugin使用,本文通过示例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下

    目录

    一、简介

    1.1 作用

    将pom工程父子pom的版本,提出作为变量定义在properties。

    这样仅修改变量的值(如在运行mvn命令时指定) 即可实现版本整体切换。

    1.2 goal介绍

    • flatten:clean

    删除flatten插件生成的 .flattened-pom.xml

    配置参数有:

    flattenedPomFilename: 插件生成的pom的名字,默认为 .flattened-pom.xml

    outputDirectory:插件生成pom的目录,默认为 ${project.basedir}

    • flatten:flatten

    resources-process生成 .flattened-pom.xml,并在install/deploy时替换原始pom.xml

    主要配置参数有:

    flattenedPomFilename: 插件生成的pom的名字,默认为 .flattened-pom.xml

    outputDirectory:插件生成pom的目录,默认为 ${project.basedir}

    updatePomFile: packing=pom的module也进行reversion变量替换,默认为false

    flattenMode:用来定义生成 .flattened-pom.xml所包含的元素,常用值有:

    oss:开源软件常用,除了repositories/pluginRepositories外其他所有FlattenDescriptor定义的元素都生成

    ossrh:所有FlattenDescriptor定义的元素都生成

    bom:在ossrh基础上增加dependencyManagement和properties

    defaults:除了repositories其他所有FlattenDescriptor定义的元素都不生成

    clean:所有FlattenDescriptor定义的元素都不生成

    fatjar:所有FlattenDescriptor定义的元素和dependencies都不生成

    resolveCiFriendliesOnly:只替换原始pom中的revision, sha1 and changelist,其他否保持原样

    常用oss/ossrh/resolveCiFriendliesOnly

    • FlattenDescriptor定义的pom.xml元素有:

    modelVersion
    groupId
    artifactId
    version
    packaging
    licenses
    dependencies
    profiles
    name
    description
    url
    inceptionYear
    organization
    scm
    developers
    contributors
    mailingLists
    pluginRepositories
    issueManagement
    ciManagement
    distributionManagement
    prerequisites
    repositories
    parent
    build
    dependencyManagement
    properties
    modules
    reporting

    二、使用总结

    • 不用flatten-maven-plugin

    1.父pom定义版本为变量reversion并作为version,子pom复引用变量reversion作为version

    2.结果能正常运行compile/test, 但install或deploy时父子pom中的version还是reversion变量未被替换

    3.没有version别人无法引用你的包

    父pom.xml

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    <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>4.0.0modelVersion>

        <packaging>pompackaging>

        <version>${reversion1}version>

        <modules>

            <module>no-flatten-childmodule>

        modules>

        <groupId>com.wsl.my.mavengroupId>

        <artifactId>no-flatten-pluginartifactId>

        <properties>

            <maven.compiler.source>8maven.compiler.source>

            <maven.compiler.target>8maven.compiler.target>

            <reversion1>1.1.0-SNAPSHOTreversion1>

        properties>

    project>

    子pom.xml

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    xml version="1.0" encoding="UTF-8"?>

    <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">

        <parent>

            <artifactId>no-flatten-pluginartifactId>

            <groupId>com.wsl.my.mavengroupId>

            <version>${reversion1}version>

            <relativePath>../pom.xmlrelativePath>

        parent>

        <modelVersion>4.0.0modelVersion>

        <artifactId>no-flatten-childartifactId>

    project>

    install/deploy后父子pom.xml中的${reversion1}没有被替换

    • 使用了flatten-maven-plugin

    1.父pom定义版本为变量reversion并作为version,子pom复引用变量reversion作为version

    2.使用flatten-maven-plugin并设置updatePomFile=true,并绑定goal到maven周期

    3.在process-resources阶段时会在父子project目录下生成.flattened-pom.xml(version已替换为具体值)

    4.运行install或deploy时会将.flattened-pom.xml替换原来的pom.xml

    原始父pom

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    <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>4.0.0modelVersion>

        <version>${reversion2}version>

        <packaging>pompackaging>

        <artifactId>use-flatten-parentartifactId>

            <groupId>com.wsl.my.mavengroupId>

        <modules>

            <module>use-flatten-childmodule>

        modules>

        <properties>

            <maven.compiler.source>8maven.compiler.source>

            <maven.compiler.target>8maven.compiler.target>

            <reversion2>1.2.0-SNAPSHOTreversion2>

        properties>

        <build>

            <plugins>

                <plugin>

                    <groupId>org.codehaus.mojogroupId>

                    <artifactId>flatten-maven-pluginartifactId>

                    <version>1.2.7version>

                    <configuration>

                        <updatePomFile>trueupdatePomFile>

                        <flattenMode>resolveCiFriendliesOnlyflattenMode>

                    configuration>

                    <executions>

                        <execution>

                            <id>flattenid>

                            <phase>process-resourcesphase>

                            <goals>

                                <goal>flattengoal>

                            goals>

                        execution>

                        <execution>

                            <id>flatten-cleanid>

                            <phase>cleanphase>

                            <goals>

                                <goal>cleangoal>

                            goals>

                        execution>

                    executions>

                plugin>

            plugins>

        build>

    project>

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  • 原文地址:https://blog.csdn.net/zhangjunli/article/details/132758361