这是我的Maven pom.xml用于Scala Spark项目:
<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.example.spark</groupId>
<artifactId>poc</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<java.source.version>1.8</java.source.version>
<java.target.version>1.8</java.target.version>
<spark.version>2.3.2</spark.version>
<scala-maven-plugin.version>3.4.6</scala-maven-plugin.version>
<maven-compiler-plugin.version>2.0.2</maven-compiler-plugin.version>
<maven-assembly-plugin.version>2.4</maven-assembly-plugin.version>
</properties>
<pluginRepositories>
<pluginRepository>
<id>scala-tools.org</id>
<name>Scala-tools Maven2 Repository</name>
<url>http://scala-tools.org/repo-releases</url>
</pluginRepository>
</pluginRepositories>
<dependencies>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming_2.11</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_2.11</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-hive_2.11</artifactId>
<version>${spark.version}</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>${scala-maven-plugin.version}</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<!-- mixed scala/java compile -->
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<executions>
<execution>
<id>scala-compile-first</id>
<phase>process-resources</phase>
<goals>
<goal>add-source</goal>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>scala-test-compile</id>
<phase>process-test-resources</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.source.version}</source>
<target>${java.target.version}</target>
</configuration>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- for fatjar -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>${maven-assembly-plugin.version}</version>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>assemble-all</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.example.Application</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
除了一件事之外,一切都很好 - 在将项目(作为现有的Maven项目)导入Scala Eclipse IDE以正确编译项目之后,我必须手动转到Scala Eclipse IDE中的项目属性 -> Scala Compiler并选择Latest 2.11 bundle (dynamic)
因为默认情况下Latest 2.12 bundle (dynamic)
被选中。
请告知如何正确配置我的pom.xml以便告诉Scala Eclipse IDE在导入后自动使用Latest 2.11 bundle (dynamic)
,而无需任何手动干预。谢谢!
在你的pom中使用此属性块
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<scala.version>2.11.8</scala.version>
<spark.scala.version>2.11</spark.scala.version>
<spark.version>2.2.0</spark.version>
</properties>
还要在依赖项中添加此块
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scala.version}</version>
<scope>provided</scope>
</dependency>
您将在 Scala IDE 中获得 Scala 2.11 版本的编译器