基于Maven构建Hadoop项目

在文档下创建myHadoop文件夹，将mvn生成的文件放在这里

基于maven构建web项目命令：

mvn archetype:generate -DarchetypeGroupId=org.apache.maven.archetypes -DgroupId=org.conan.myhadoopmr  -DartifactId=myHadoop -DpackageName=org.conan.myhadoop.mr -Dversion=1.0-SNAPSHOT -DinteractiveMode=false

生成目录如下：

➜  hadoop  tree myHadoop 
myHadoop
├── pom.xml
└── src
    ├── main
    │   └── java
    │       └── org
    │           └── conan
    │               └── myhadoopmr
    │                   └── App.java
    └── test
        └── java
            └── org
                └── conan
                    └── myhadoopmr
                        └── AppTest.java

配置安装，结果如下

➜  myHadoop  mvn clean install
[INFO] Scanning for projects...
[INFO] 
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder with a thread count of 1
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building myHadoop 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.pom
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.pom (8 KB at 7.1 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.jar
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.jar (29 KB at 36.4 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-compiler-plugin/2.5.1/maven-compiler-plugin-2.5.1.pom
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-compiler-plugin/2.5.1/maven-compiler-plugin-2.5.1.pom (8 KB at 20.3 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-compiler-plugin/2.5.1/maven-compiler-plugin-2.5.1.jar
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-compiler-plugin/2.5.1/maven-compiler-plugin-2.5.1.jar (32 KB at 57.2 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-surefire-plugin/2.12.4/maven-surefire-plugin-2.12.4.pom
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-surefire-plugin/2.12.4/maven-surefire-plugin-2.12.4.pom (11 KB at 27.0 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire/2.12.4/surefire-2.12.4.pom
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire/2.12.4/surefire-2.12.4.pom (14 KB at 35.2 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-surefire-plugin/2.12.4/maven-surefire-plugin-2.12.4.jar
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-surefire-plugin/2.12.4/maven-surefire-plugin-2.12.4.jar (30 KB at 51.4 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-jar-plugin/2.4/maven-jar-plugin-2.4.pom
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-jar-plugin/2.4/maven-jar-plugin-2.4.pom (6 KB at 8.9 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-jar-plugin/2.4/maven-jar-plugin-2.4.jar
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-jar-plugin/2.4/maven-jar-plugin-2.4.jar (34 KB at 59.1 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/junit/junit/3.8.1/junit-3.8.1.pom
Downloaded: http://repo.maven.apache.org/maven2/junit/junit/3.8.1/junit-3.8.1.pom (998 B at 2.1 KB/sec)
Downloading: http://repo.maven.apache.org/maven2/junit/junit/3.8.1/junit-3.8.1.jar
Downloaded: http://repo.maven.apache.org/maven2/junit/junit/3.8.1/junit-3.8.1.jar (119 KB at 104.4 KB/sec)

生成路径如下：

➜  myHadoop  ls
pom.xml src     target
➜  myHadoop  tree 
.
├── pom.xml
├── src
│   ├── main
│   │   └── java
│   │       └── org
│   │           └── conan
│   │               └── myhadoopmr
│   │                   └── App.java
│   └── test
│       └── java
│           └── org
│               └── conan
│                   └── myhadoopmr
│                       └── AppTest.java
└── target
    ├── classes
    │   └── org
    │       └── conan
    │           └── myhadoopmr
    │               └── App.class
    ├── maven-archiver
    │   └── pom.properties
    ├── myHadoop-1.0-SNAPSHOT.jar
    ├── surefire-reports
    │   ├── TEST-org.conan.myhadoopmr.AppTest.xml
    │   └── org.conan.myhadoopmr.AppTest.txt
    └── test-classes
        └── org
            └── conan
                └── myhadoopmr
                    └── AppTest.class

修改目录下的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.conan.myhadoopmr</groupId>
  <artifactId>myHadoop</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>myHadoop</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>org.apache.hadoop</groupId>
      <artifactId>hadoop-client</artifactId>
      <version>2.2.0</version>
    </dependency>
    
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

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