?pom.xml 文件

<activeByDefault>true</activeByDefault>?activeByDefault標簽的值為true的話表示為默認的profile

<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>sample</groupId><artifactId>scala-module-dependency-sample</artifactId><version>1.0-SNAPSHOT</version><!-- Maven profiles allow you to support both Scala 2.10, 2.11 and Scala 2.12 withthe right dependencies for modules specified for each version separately --><profiles><profile><id>scala-2.12</id><activation><activeByDefault>true</activeByDefault></activation><properties><scalaVersion>2.12.0</scalaVersion><scalaBinaryVersion>2.12</scalaBinaryVersion></properties><dependencies><dependency><groupId>org.scala-lang</groupId><artifactId>scala-library</artifactId><version>${scalaVersion}</version></dependency><dependency><groupId>org.scala-lang.modules</groupId><artifactId>scala-xml_${scalaBinaryVersion}</artifactId><version>1.0.6</version></dependency><dependency><groupId>org.scala-lang.modules</groupId><artifactId>scala-parser-combinators_${scalaBinaryVersion}</artifactId><version>1.0.4</version></dependency><dependency><groupId>org.scala-lang.modules</groupId><artifactId>scala-swing_${scalaBinaryVersion}</artifactId><version>2.0.0-M2</version></dependency></dependencies></profile><profile><id>scala-2.11</id><properties><scalaVersion>2.11.8</scalaVersion><scalaBinaryVersion>2.11</scalaBinaryVersion></properties><dependencies><dependency><groupId>org.scala-lang</groupId><artifactId>scala-library</artifactId><version>${scalaVersion}</version></dependency><dependency><groupId>org.scala-lang.modules</groupId><artifactId>scala-xml_${scalaBinaryVersion}</artifactId><version>1.0.6</version></dependency><dependency><groupId>org.scala-lang.modules</groupId><artifactId>scala-parser-combinators_${scalaBinaryVersion}</artifactId><version>1.0.4</version></dependency><dependency><groupId>org.scala-lang.modules</groupId><artifactId>scala-swing_${scalaBinaryVersion}</artifactId><version>1.0.2</version></dependency></dependencies></profile><profile><id>scala-2.10</id><properties><scalaVersion>2.10.6</scalaVersion><scalaBinaryVersion>2.10</scalaBinaryVersion></properties><dependencies><dependency><groupId>org.scala-lang</groupId><artifactId>scala-library</artifactId><version>${scalaVersion}</version></dependency><dependency><groupId>org.scala-lang</groupId><artifactId>scala-swing</artifactId><version>${scalaVersion}</version></dependency></dependencies></profile></profiles><build><sourceDirectory>src/main/scala</sourceDirectory><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><configuration><source>1.8</source><target>1.8</target></configuration></plugin><plugin><groupId>net.alchim31.maven</groupId><artifactId>scala-maven-plugin</artifactId><version>3.2.1</version><executions><execution><goals><goal>compile</goal><goal>testCompile</goal></goals></execution></executions><configuration><args><!-- work-around for https://issues.scala-lang.org/browse/SI-8358 --><arg>-nobootcp</arg></args></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-shade-plugin</artifactId><version>1.2.1</version><executions><execution><phase>package</phase><goals><goal>shade</goal></goals><configuration><transformers><transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"><mainClass>XMLHelloWorld</mainClass></transformer></transformers></configuration></execution></executions></plugin></plugins></build> </project>

scala：

object XMLHelloWorld {def main(args: Array[String]): Unit = {val xml = <hello>world</hello>println(xml)} }

mvn clean package

或

mvn clean scala:compile compile package

??java -jar scala-module-dependency-sample-1.0-SNAPSHOT.jar

總結

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