我在 Eclipse 中将我的 scala 项目转换为使用 Maven(只需右键单击项目并配置 Maven 构建)，这创建了 pom.xml，添加了从 Maven 存储库中提取所需 jar 的正确依赖项，但是每当我尝试编译时，我都没有请参阅在 target\classes 文件夹中生成的类文件。但是，我在 target\classes 文件夹下的相应目录中看到了实际的源代码，它是 scala 文件。我不确定它为什么要复制 target\classes 文件夹中的源文件。
另一个奇怪的事情是，如果我在 Eclipse 中打开单个 scala 文件并进行一些代码更改，那么它会自动构建该类文件，但是我有 1000 多个 scala 文件，所以不是一个可行的选择。
我尝试了所有选项，例如 Eclipse - Clean & Build，但没有任何效果，我什至尝试在 Eclipse 中使用 maven build 但它总是出现此消息“没有任何编译 - 所有类都是最新的”，我清理了我的目标目录，但仍然是一个问题。
我将不胜感激在这方面的任何帮助。
提前致谢
我正在使用 Scala Eclipse IDE
- Eclipse SDK 的 Scala IDE 构建
版本号:3.0.4-2.11-20140520-1158-Typesafe
Content of Pom.xml
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>notmaven</groupId>
<artifactId>notmaven</artifactId>
<version>0.0.1-SNAPSHOT</version>
<repositories>
<repository>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>central</id>
<name>Central Repository</name>
<url>http://repo.maven.apache.org/maven2</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<releases>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>central</id>
<name>Central Repository</name>
<url>http://repo.maven.apache.org/maven2</url>
</pluginRepository>
</pluginRepositories>
<build>
<sourceDirectory>C:\projectsomu\notmaven\src</sourceDirectory>
<scriptSourceDirectory>C:\projectsomu\notmaven\src\main\scripts</scriptSourceDirectory>
<testSourceDirectory>C:\projectsomu\notmaven\src\test\java</testSourceDirectory>
<outputDirectory>C:\projectsomu\notmaven\target\classes</outputDirectory>
<testOutputDirectory>C:\projectsomu\notmaven\target\test-classes</testOutputDirectory>
<resources>
<resource>
<directory>C:\projectsomu\notmaven\src</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
<testResources>
<testResource>
<directory>C:\projectsomu\notmaven\src\test\resources</directory>
</testResource>
</testResources>
<directory>C:\projectsomu\notmaven\target</directory>
<finalName>notmaven-0.0.1-SNAPSHOT</finalName>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.3</version>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2-beta-5</version>
</plugin>
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.1</version>
</plugin>
<plugin>
<artifactId>maven-release-plugin</artifactId>
<version>2.0</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<executions>
<execution>
<id>default-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<source>1.3</source>
<target>1.2</target>
</configuration>
</execution>
<execution>
<id>default-testCompile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
<configuration>
<source>1.3</source>
<target>1.2</target>
</configuration>
</execution>
</executions>
<configuration>
<source>1.3</source>
<target>1.2</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>2.4.1</version>
<executions>
<execution>
<id>default-clean</id>
<phase>clean</phase>
<goals>
<goal>clean</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<id>default-testResources</id>
<phase>process-test-resources</phase>
<goals>
<goal>testResources</goal>
</goals>
</execution>
<execution>
<id>default-resources</id>
<phase>process-resources</phase>
<goals>
<goal>resources</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3.2</version>
<executions>
<execution>
<id>default-jar</id>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.10</version>
<executions>
<execution>
<id>default-test</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.3.1</version>
<executions>
<execution>
<id>default-install</id>
<phase>install</phase>
<goals>
<goal>install</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.7</version>
<executions>
<execution>
<id>default-deploy</id>
<phase>deploy</phase>
<goals>
<goal>deploy</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.0</version>
<executions>
<execution>
<id>default-site</id>
<phase>site</phase>
<goals>
<goal>site</goal>
</goals>
<configuration>
<outputDirectory>C:\projectsomu\notmaven\target\site</outputDirectory>
<reportPlugins>
<reportPlugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-project-info-reports-plugin</artifactId>
</reportPlugin>
</reportPlugins>
</configuration>
</execution>
<execution>
<id>default-deploy</id>
<phase>site-deploy</phase>
<goals>
<goal>deploy</goal>
</goals>
<configuration>
<outputDirectory>C:\projectsomu\notmaven\target\site</outputDirectory>
<reportPlugins>
<reportPlugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-project-info-reports-plugin</artifactId>
</reportPlugin>
</reportPlugins>
</configuration>
</execution>
</executions>
<configuration>
<outputDirectory>C:\projectsomu\notmaven\target\site</outputDirectory>
<reportPlugins>
<reportPlugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-project-info-reports-plugin</artifactId>
</reportPlugin>
</reportPlugins>
</configuration>
</plugin>
</plugins>
</build>
<reporting>
<outputDirectory>C:\projectsomu\notmaven\target\site</outputDirectory>
</reporting>
</project>
最佳答案
您 should add 以下插件到您的 maven 配置 ( pom.xml ) 并重新配置项目。
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.1.3</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
您 should also add 来自 update site 的 m2e-scala 插件。
关于Eclipse、Scala 和 Maven - 类文件未生成，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/28047662/