Maven的安装

1.解压maven包

2.创建maven目录（注意路径中不要有中文）里面包含maven和相对应的本地仓库

3.修改maven中的中的settings.xml配置文件，修改该节点  <localRepository>E:/maven/repository</localRepository>

将路径指向解压后的本地仓库路径

4. 配置maven的环境变量

将变量加入到path路径下

5.设置IDEA的maven路径

6.创建maven项目

IDEA.exe中，File-->project-->maven

7.配置文件

<?xml version="1.0" encoding="UTF-8"?>
<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.beicai</groupId> <!--创建maven项目的时候-->
    <artifactId>scala_1608c</artifactId><!--创建maven项目的时候-->

    <version>1.0-SNAPSHOT</version>

    <properties>
        <encoding>UTF-8</encoding>
        <scala.version>2.10.6</scala.version>
    </properties>

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

    <build>
        <sourceDirectory>src/main/scala</sourceDirectory><!--java和scala看自己-->
        <testSourceDirectory>src/test/scala</testSourceDirectory><!--java和scala看自己-->

        <plugins>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.2.2</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>testCompile</goal>
                        </goals>
                        <configuration>
                            <args>
                                <arg>-make:transitive</arg>
                                <arg>-dependencyfile</arg>
                                <arg>${project.build.directory}/.scala_dependencies</arg>
                            </args>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.4.3</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <filters>
                                <filter>
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass></mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

 有报错的地方，把鼠标放在报错的地方，按Alt+回车，会自动下载

8.创建maven项目中碰到的错

　　找不到maven