1、jdk的下载,安装,及环境变量的配置
2、maven的下载,安装,及环境变量的配置
3、eclipse maven插件的安装(百度有)
4、安装好后,重启maven
5、设置maven,Window-Preferences-Maven-Installations-add,添加maven安装路径
6、设置maven,Window-Preferences-Maven-User Settings
7、用Maven创建一个标准化的Java项目
在cmd下进入eclipse目录下,执行以下命令
mvn archetype:generate -DarchetypeGroupId=org.apache.maven.archetypes -DgroupId=org.com.myhadoop.hadoop
-DartifactId=myHadoops
-Dversion=1.0-SNAPSHOT -DinteractiveMode=false
myHadoops文件,cd
myHadoops,执行mvn clean install
9、在eclipse中导入创建好的java项目:import-maven- Existing Maven Projects
10、修改pom.xml
<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>org.com.myhadoop.hadoop</groupId>
<artifactId>myHadoops</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>myHadoops</name>
<url>
http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-client</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-hdfs</artifactId>
<version>2.6.0</version>
</dependency>
</dependencies>
</project>
11、
执行Run As-Maven build,如果出现如下错误:
-Dmaven.multiModuleProjectDirectory system property is not set. Check $M2_HOME environment variable and mvn script match.
可以
设一个环境变量M2_HOME指向你的maven安装目录:
M2_HOME=
D:\Apps\apache-maven-3.3.1。
然后在Window->Preference->Java->Installed JREs->Edit,
在Default VM arguments
中设置
-Dmaven.multiModuleProjectDirectory=$M2_HOME