hadoop eclipse 插件

1. 下载hadoop-2.0.0-cdh4.2.2.tar.gz

2.解压tar -zxvf hadoop-2.0.0-cdh4.2.2.tar.gz

3.进入目录./hadoop-2.0.0-mr1-cdh4.2.2/src/contrib，修改build-contrib.xml文件

<!-- 原内容为off -->

 <property name="javac.deprecation" value="on"/>

4.进入目录./hadoop-2.0.0-mr1-cdh4.2.2/src/contrib/eclipse-plugin

(1)修改build.xml（红色部分为修改或添加的内容）

<project default="jar" name="eclipse-plugin">
  <import file="../build-contrib.xml"/>
  <property name="eclipse.home" location="eclipse安装目录" />
  <property name="version" value="2.0.0-cdh4.2.2" />

。。。。

<path id="classpath">
    <pathelement location="${build.classes}"/>
    <pathelement location="${hadoop.root}/build/classes"/>
    <fileset dir="${hadoop.root}">
        <include name="**/*.jar" />
    </fileset>

    <path refid="eclipse-sdk-jars"/>

  </path>

。。。

 <target name="compile" depends="init, ivy-retrieve-common" unless="skip.contrib">
    <echo message="contrib: ${name}"/>
    <javac
     encoding="${build.encoding}"
     srcdir="${src.dir}"
     includes="**/*.java"
     destdir="${build.classes}"
     debug="${javac.debug}"
     deprecation="${javac.deprecation}"
     includeantruntime="on">
     <classpath refid="classpath"/>
    </javac>
  </target>


  <!-- Override jar target to specify manifest -->
  <target name="jar" depends="compile" unless="skip.contrib">
    <mkdir dir="${build.dir}/lib"/>
    <!-- <copy file="${hadoop.root}/build/hadoop-core-${version}.jar" tofile="${build.dir}/lib/hadoop-core.jar" verbose="true"/> -->
    <!-- <copy file="${hadoop.root}/build/ivy/lib/Hadoop/common/commons-cli-${commons-cli.version}.jar"  todir="${build.dir}/lib" verbose="true"/> -->
    <copy file="${hadoop.root}/hadoop-core-2.0.0-mr1-cdh4.2.2.jar" tofile="${build.dir}/lib/hadoop-core.jar" verbose="true"/>
    <copy file="${hadoop.root}/lib/commons-cli-${commons-cli.version}.jar"  tofile="${build.dir}/lib/commons-cli.jar" verbose="true"/>
    <copy file="${hadoop.root}/lib/commons-configuration-1.6.jar"  tofile="${build.dir}/lib/commons-configuration.jar" verbose="true"/>
    <copy file="${hadoop.root}/lib/commons-httpclient-3.1.jar"  tofile="${build.dir}/lib/commons-httpclient.jar" verbose="true"/>
    <copy file="${hadoop.root}/lib/commons-lang-2.5.jar"  tofile="${build.dir}/lib/commons-lang.jar" verbose="true"/>
    <copy file="${hadoop.root}/lib/jackson-core-asl-1.8.8.jar"  tofile="${build.dir}/lib/jackson-core-asl.jar" verbose="true"/>
    <copy file="${hadoop.root}/lib/jackson-mapper-asl-1.8.8.jar"  tofile="${build.dir}/lib/jackson-mapper-asl.jar" verbose="true"/>

    <jar

      jarfile="${build.dir}/hadoop-${name}-${version}.jar"

      manifest="${root}/META-INF/MANIFEST.MF">

      <fileset dir="${build.dir}" includes="classes/ lib/"/>

      <fileset dir="${root}" includes="resources/ plugin.xml"/>

    </jar>

  </target>

(2)修改build.properties（添加如下内容）

reactor.repo=https://repository.cloudera.com/content/repositories/snapshots

5.在当前目录下运行ant命令  ant jar

6.将生成的hadoop-eclipse-plugin-2.0.0-cdh4.2.2.jar拷贝到Eclipse安装目录的plugins目录下，运行Eclipse