eclipse 中java/scala 混合的maven项目 工作环境篇

 

　　写在前面：基本上靠java吃饭的吧,近两年也有用到scala;但也没有留下什么痕迹,想起每次被问倒在基础知识,那刻对方→_→ 怀疑的眼神~~。so right here, right now ! 从此沉淀下来。然后积沙成堆,积水成河 养成良好的习惯并持之以恒。p( ^ O ^ )q 加油！

 

　　一、IDE:scala-IDE(一直用这个),IntelliJ IDEA(耳闻),Netbeans(才知道)

　　二、安装m2eclipse-scala插件,URL：http://alchim31.free.fr/m2e-scala/update-site/

　　三、创建项目的时候需要搜索、选择插件,要增加URL：http://repo1.maven.org/maven2/archetype-catalog.xml

　　四、出现过mvn连不上公共库的问题;

　　　　解决方法：eclipse.ini add : -vmargs -Djava.net.preferIPv4Stack=true

　　　　参考https://www.eclipse.org/forums/index.php/t/270718/(Starting Eclipse with -vmargs -Djava.net.preferIPv4Stack=true works for me)

　　五、创建支持scala的mvn项目步骤

　　　　Select New -> Project -> Other and then select Maven Project. On the next window, search forscala-archetype. Make sure you select the one in group net.alchim31.maven, and click Next。

　　　　参考http://scala-ide.org/docs/tutorials/m2eclipse/index.html#create-a-new-scala-maven-project

　　六、scala/java 项目mvn打包

　　　　参考http://davidb.github.io/scala-maven-plugin/example_java.html

<dependencies>
    ...
    <dependency>
      <groupId>org.scala-lang</groupId>
      <artifactId>scala-library</artifactId>
      <version>${scala.version}</version>
    </dependency>
    ...
</dependencies>

<build>
    <sourceDirectory>src/main</sourceDirectory>
    <testSourceDirectory>src/test</testSourceDirectory>
    
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.2.1</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
            </plugin>
        </plugins>
    </pluginManagement>
        
    <plugins>
    
            <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>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>compile</phase>
                        <goals>
                            <goal>compile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
    </plugins>
  </build>