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maven配置及使用(整理)

参考官网:https://maven.apache.org/index.html

Maven介绍

  • Maven是一筐服务于Java平台的自动化构建工具(本身是Java写的)
  • 开发过程中,所有的路径或配置文件中配置的类路径等都是以编译结果的目录结构为标准的(运行时环境)
  • 依赖:
    • compile对所有文件编译
    • test,只对test有效,不打包,不部署,比如junit
    • provided,对程序有效,不打包,不部署,需要idea设置运行时包含provided的依赖

总结:

  • compile用于编译和测试,test只用于测试,provided用于编译和测试,不打包
  • 本地项目使用mvn install后会把项目打包放入本地仓库,这样其他依赖本项目的项目就可以在pom中添加依赖使用了
  • provided是在开发时使用,但是在部署时忽略,在运行时由服务器提供

依赖传递:路径最短原则,先声明者优先原则

继承:

  • 父工程统一管理版本,打包方式必须为pom
  • 子工程声明父工程时添加relativePath,指明父工程pom的路径
  • install时要先安装父工程

聚合:

  • 父工程中配置<modules>指明子工程的相对路径,安装父工程时会自动安装子工程

Maven安装与配置

安装

  • 安装好java环境,配置好JAVA_HOME
  • 下载maven安装包,解压到无空格非中文目录,配置环境变量MAVEN_HOME,配置%MAVEN_HOME%/bin到path
  • 检查安装:mvn -v

修改本地仓库地址

  • 修改maven安装目录下conf/settings.xml,也可以在idea配置中覆盖
<localRepository>E:\maven\MavenRepository</localRepository>

配置远程仓库地址

<!--阿里云公共仓库https://maven.aliyun.com-->
<mirror>
	<id>aliyunmaven</id>
	<mirrorOf>*</mirrorOf>
	<name>阿里云公共仓库</name>
	<url>https://maven.aliyun.com/repository/public</url>
</mirror>

<!-- 阿里云仓库 -->
<mirror>
	<id>alimaven</id>
	<mirrorOf>central</mirrorOf>
	<name>aliyun maven</name>
	<url>http://maven.aliyun.com/nexus/content/repositories/central/</url>
</mirror>

<!-- 中央仓库1 -->
<mirror>
	<id>repo1</id>
	<mirrorOf>central</mirrorOf>
	<name>Human Readable Name for this Mirror.</name>
	<url>http://repo1.maven.org/maven2/</url>
</mirror>

<!-- 中央仓库2 -->
<mirror>
	<id>repo2</id>
	<mirrorOf>central</mirrorOf>
	<name>Human Readable Name for this Mirror.</name>
	<url>http://repo2.maven.org/maven2/</url>
</mirror>

idea中maven配置

  • File | Settings | Build, Execution, Deployment | Build Tools | Maven,配置HOME目录和settings.xml文件

maven变量

来自maven默认pom文件 superpom

    <directory>${project.basedir}/target</directory>
    <outputDirectory>${project.build.directory}/classes</outputDirectory>
    <finalName>${project.artifactId}-${project.version}</finalName>
    <testOutputDirectory>${project.build.directory}/test-classes</testOutputDirectory>
    <sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
    <scriptSourceDirectory>${project.basedir}/src/main/scripts</scriptSourceDirectory>
    <testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory>

maven命令

  • 检查依赖:mvn -U dependency:tree
  • 更新依赖:mvn -U idea:idea
  • 编译打包:mvn -Dmaven.test.skip=true clean install

maven打包

注意:idea在创建子模块时会自动在父模块的pom里面添加<packaging>pom</packaging>,父工程作为聚合其他工程的工程,无法打包为jar,所以如果有子工程,必须将父工程的代码迁移到子工程

springboot项目使用spring-boot-maven-plugin打包可执行jar

点击查看代码
<plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <classifier>jar-with-dependencies</classifier>
					<!--排除所有该groupId的依赖-->
					<excludeGroupIds>org.xxx</excludeGroupIds>
                    <excludes>
                        <excludes>
						<!--排除某个依赖-->
                            <exclude>
                                <groupId>org.xxx</groupId>
                                <artifactId>xxx</artifactId>
                            </exclude>
                        </excludes>
                    </excludes>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

使用maven-assembly-plugin打包为可执行jar

点击查看代码
            <!--maven-assembly-plugin打包成可执行jar-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>3.3.0</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>org.org.example.MainApplication</mainClass>
                        </manifest>
                    </archive>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <!--重命名为xxx-jar-with-dependencies.jar-->
<!--                    <finalName>${project.artifactId}-${project.version}-xxx</finalName>-->
                    <!--设为false表示不使用jar-with-dependencies作为后缀-->
<!--                    <appendAssemblyId>false</appendAssemblyId>-->
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

依赖打入lib,配置打入conf,封装为tar.gz

  • maven-resources-plugin
  • maven-jar-plugin
  • maven-dependency-plugin
  • maven-assembly-plugin
点击查看代码
<build>
        <plugins>
            <!--maven-resources-plugin 拷贝resources资源-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <!--要拷贝到哪个目录-->
                            <outputDirectory>${project.build.directory}/conf</outputDirectory>
                            <resources>
                                <!--拷贝哪些资源-->
                                <resource>
                                    <directory>src/main/resources</directory>
                                    <filtering>false</filtering>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <!--maven-jar-plugin 配置生成的jar包元数据-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <!--排除resources下的文件打包到jar包 如果不排除会放在jar包里面-->
                    <excludes>
                        <exclude>*.yml</exclude>
                        <exclude>*.yaml</exclude>
                        <exclude>*.xml</exclude>
                        <exclude>*.properties</exclude>
                    </excludes>
                    <archive>
                        <manifest>
                            <!--是否添加依赖的jar包路径到jar包的元数据MANIFEST.MF-->
                            <addClasspath>true</addClasspath>
                            <!--每个jar依赖的前缀-->
                            <classpathPrefix>lib/</classpathPrefix>
                            <!--依赖的版本号不是带时间戳的-->
                            <useUniqueVersions>false</useUniqueVersions>
                            <!--设置jar包的主类名-->
                            <mainClass>org.example.MainApplication</mainClass>
                        </manifest>
                        <manifestEntries>
                            <!--添加jar包同级目录下的其他目录作为到类路径 只能添加一个-->
                            <Class-Path>conf/ conf2/ conf3/</Class-Path>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>
            <!--maven-dependency-plugin打包依赖的插件-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <id>copy</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                        <configuration>
                            <!--包括或排除哪些scope的依赖-->
                            <includeScope>runtime</includeScope>
                            <excludeScope>provided,test</excludeScope>
                            <!--排除某些依赖-->
                            <excludeArtifactIds>junit,dbunit,mockito-all</excludeArtifactIds>
                            <!--是否排除传递依赖-->
                            <excludeTransitive>false</excludeTransitive>
                            <!--将依赖输出到这个目录下-->
                            <outputDirectory>
                                ${project.build.directory}/lib
                            </outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <!--maven-assembly-plugin打包成指定格式的包 比如tar.gz-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
<!--                    <finalName>${project.artifactId}-${project.version}</finalName>-->
                    <appendAssemblyId>false</appendAssemblyId>
                    <descriptors>
                        <descriptor>src/assembly/assembly.xml</descriptor>
                    </descriptors>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

assembly.xml

点击查看代码
<?xml version="1.0" encoding="UTF-8"?>
<assembly xmlns="http://maven.apache.org/ASSEMBLY/2.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.0.0 http://maven.apache.org/xsd/assembly-2.0.0.xsd">
    <id>build</id>
    <formats>
        <format>tar.gz</format>
    </formats>
    <!--是否将项目目录打入tar.gz-->
    <includeBaseDirectory>false</includeBaseDirectory>
    <fileSets>
        <!--收集的文件集合-->
        <fileSet>
            <!--文件所在目录-->
            <directory>target</directory>
            <includes>
                <include>*.jar</include>
                <include>/lib/**</include>
                <include>/conf/**</include>
            </includes>
            <!--在打包tar.gz的哪个目录-->
            <outputDirectory>/</outputDirectory>
            <directoryMode>0755</directoryMode>
        </fileSet>
    </fileSets>
</assembly>


maven-shade-plugin 打包可执行jar

  • maven-shade-plugin
  • 具体使用参数可以在pom里面点击对应参数,进入参数说明
点击查看代码
<!--打包为可执行的jar包 包括依赖-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
		<configuration>
                    <createDependencyReducedPom>false</createDependencyReducedPom>
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <artifactSet>
                                <!--排除依赖 groupId:artifactId[[:type]:classifier]-->
                                <excludes>
                                    <exclude>classworlds:classworlds</exclude>
                                    <exclude>junit:junit</exclude>
                                    <exclude>jmock:*</exclude>
                                    <exclude>*:xml-apis</exclude>
                                    <exclude>org.apache.maven:lib:tests</exclude>
                                </excludes>
                            </artifactSet>
                            <filters>
                                <!--使用filter更细粒度的控制-->
                                <filter>
                                    <artifact>junit:junit</artifact>
                                    <includes>
                                        <include>junit/framework/**</include>
                                        <include>org/junit/**</include>
                                    </includes>
                                    <excludes>
                                        <exclude>org/junit/experimental/**</exclude>
                                        <exclude>org/junit/runners/**</exclude>
                                    </excludes>
                                </filter>
                                <filter>
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                                <filter>
                                    <artifact>foo:bar</artifact>
                                    <!--默认为true 表示没有在includes里面的都会排除 设为false则不会排除-->
                                    <excludeDefaults>false</excludeDefaults>
                                    <includes>
                                        <include>foo/Bar.class</include>
                                    </includes>
                                </filter>
                            </filters>
                            <!--自动移除项目没有使用到的依赖-->
<!--                            <minimizeJar>true</minimizeJar>-->
                            <shadedArtifactAttached>true</shadedArtifactAttached>
                            <shadedClassifierName>executable</shadedClassifierName>
                            <transformers>
                                <!--设置主类名-->
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>org.example.MainApplication</mainClass>
<!--                                    <Build-Number>123</Build-Number>&lt;!&ndash;自定义内容添加到manifest的&ndash;&gt;-->
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

maven-shade-plugin打包springboot可执行jar

可参考spring-boot-starter-parent的pom,

点击查看代码
 <!--打包可执行jar-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <configuration>
                    <keepDependenciesWithProvidedScope>true</keepDependenciesWithProvidedScope>
                    <createDependencyReducedPom>false</createDependencyReducedPom>
                    <!--下面两个配置合起来才有用-->
                    <shadedArtifactAttached>true</shadedArtifactAttached>
                    <shadedClassifierName>jar-with-dependencies</shadedClassifierName>
                    <filters>
                        <filter>
                            <artifact>*:*</artifact>
                            <excludes>
                                <exclude>META-INF/*.SF</exclude>
                                <exclude>META-INF/*.DSA</exclude>
                                <exclude>META-INF/*.RSA</exclude>
                            </excludes>
                        </filter>
                    </filters>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-maven-plugin</artifactId>
<!--                        <version>${spring.boot.version}</version>-->
<!--                        <version>2.6.4</version>-->
                        <version>2.0.3.RELEASE</version><!--使用高版本报错-->
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                    <resource>META-INF/spring.handlers</resource>
                                </transformer>
                                <transformer
                                        implementation="org.springframework.boot.maven.PropertiesMergingResourceTransformer">
                                    <resource>META-INF/spring.factories</resource>
                                </transformer>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                    <resource>META-INF/spring.schemas</resource>
                                </transformer>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>${start-class}</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

maven编译proto配置

点击查看代码
        <!--grpc版本号-->
        <grpc.version>1.6.1</grpc.version>
        <!--protobuf 版本号-->
        <protobuf.version>3.9.0</protobuf.version>

        <!--protobuf-->
        <dependency>
            <groupId>com.google.protobuf</groupId>
            <artifactId>protobuf-java</artifactId>
            <version>${protobuf.version}</version>
        </dependency>
        <!--compile-->
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-core</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-protobuf-lite</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-protobuf</artifactId>
            <version>${grpc.version}</version>
        </dependency>


<build>
        <plugins>
            <!--proto编译-->
            <plugin>
                <groupId>org.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.5.1</version>
                <configuration>
                    <!--protobuf文件目录--> <protoSourceRoot>${project.basedir}/src/main/java/org/example/netty/protobuf/proto</protoSourceRoot>
                    <!--编译后文件的输出目录-->              <outputDirectory>src/main/java/org/example/netty/protobuf/proto/entity</outputDirectory>
                    <!--设置是否在生成java文件之前清空outputDirectory的文件,默认值为true-->
                    <clearOutputDirectory>false</clearOutputDirectory>

                    <!--suppress UnresolvedMavenProperty -->
 <protocArtifact>com.google.protobuf:protoc:${protobuf.version}:exe:${os.detected.classifier}</protocArtifact>
                    <pluginId>grpc-java</pluginId>
                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:${grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>compile-custom</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>

        <!--使用来自该项目的一系列构建扩展 -->
        <extensions>
            <extension>
                <groupId>kr.motd.maven</groupId>
                <artifactId>os-maven-plugin</artifactId>
                <version>1.5.0.Final</version>
            </extension>
        </extensions>
    </build>

maven-antrun-plugin插件进行拷贝

点击查看代码
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>1.3</version>
                <executions>
                    <execution>
                        <id>mvn-copy-file</id>
                        <phase>package</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>copy-and-rename-file</id>
                        <phase>generate-resources</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                        <configuration>
                            <tasks>
                                <copy file="${project.basedir}/xxx/xxx.txt" tofile="${project.build.directory}/abc.txt"/>
                                <move file="xxx" tofile="xxx"/>
                            </tasks>
                        </configuration>

                    </execution>
                </executions>
                <configuration>
                    <tasks>
                        <copy todir="${project.build.directory}/xxx/xxx">
                            <fileset dir="${project.build.directory}/" includes="*.tar.gz"/>
                        </copy>
                    </tasks>
                </configuration>
            </plugin>

build-helper-maven-plugin设置时间戳变量

设置的变量在文件中可以使用$进行引用,在使用maven-resources-plugin拷贝资源时filtering设置为true即可

点击查看代码
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>1.7</version>
                <executions>
                    <execution>
                        <id>timestamp-property</id>
                        <goals>
                            <goal>timestamp-property</goal>
                        </goals>
                        <configuration>
                            <name>build.time</name>
                            <pattern>yyyy-MM-dd HH:mm:ss</pattern>
                            <locale>en_US</locale>
                            <timeZone>GMT+8</timeZone>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

posted on 2020-07-07 16:39  Bingmous  阅读(405)  评论(0编辑  收藏  举报