昨天折腾hadoop2X的eclipse插件，从https://github.com/winghc/hadoop2x-eclipse-plugin把源码搞下来后，很快搞定出来一个，但是。。。New Hadoop Location时，窗口出不来，汗死，原因后面会说明的。源码难下，最后我会附上源码包的。
仔细看了ant和ivy的文件之后，我发现了一个坑爹的现象，编译一个插件，需要ivy么？！
ant用了好久了，还是自己写一个的好。
查看了jar包，都是hadoop安装目录里面存在的，还需要连个毛线的网去检测啊！看了下ivy的调试信息，也就那么些东西，直接干掉ivy！
重新写了个build.xml，只要往目录hadoop2x-eclipse-plugin-master/src/contrib/eclipse-plugin里面一丢，改改前5个属性的值，直接跑“ant jar”就行了。
或者eclipse建立一个普通项目，把
META-INF
resources
src
build.properties
plugin.xml
往项目一丢，再把build.xml丢进去，改了前5个属性值直接跑就行了。
build.xml内容如下
<?xml version="1.0"?> <project name="eclipse-plugin" default="jar"> <property name="jdk.home" value="G:/jdk/jdk1.6.0" /> <property name="hadoop.version" value="2.4.1" /> <property name="hadoop.home" value="G:/hadoop/hadoop-2.4.1" /> <property name="eclipse.version" value="3.7" /> <property name="eclipse.home" value="G:/MyEclipse10/Common" /> <property name="root" value="${basedir}" /> <property file="${root}/build.properties" /> <property name="name" value="${ant.project.name}" /> <property name="src.dir" location="${root}/src/java" /> <property name="build.contrib.dir" location="${root}/build/contrib" /> <property name="build.dir" location="${build.contrib.dir}/${name}" /> <property name="build.classes" location="${build.dir}/classes" /> <!-- all jars together --> <property name="javac.deprecation" value="off" /> <property name="javac.debug" value="on" /> <property name="build.encoding" value="ISO-8859-1" /> <path id="eclipse-sdk-jars"> <fileset dir="${eclipse.home}/plugins/"> <include name="org.eclipse.ui*.jar" /> <include name="org.eclipse.jdt*.jar" /> <include name="org.eclipse.core*.jar" /> <include name="org.eclipse.equinox*.jar" /> <include name="org.eclipse.debug*.jar" /> <include name="org.eclipse.osgi*.jar" /> <include name="org.eclipse.swt*.jar" /> <include name="org.eclipse.jface*.jar" /> <include name="org.eclipse.team.cvs.ssh2*.jar" /> <include name="com.jcraft.jsch*.jar" /> </fileset> </path> <path id="project-jars"> <fileset file="${build.dir}/lib/*.jar" /> </path> <target name="init" unless="skip.contrib"> <echo message="contrib: ${name}" /> <mkdir dir="${build.dir}" /> <mkdir dir="${build.classes}" /> <mkdir dir="${build.dir}/lib" /> <copy todir="${build.dir}/lib/" verbose="true"> <fileset dir="${hadoop.home}/share/hadoop/mapreduce"> <include name="hadoop*.jar" /> <exclude name="*test*"/> <exclude name="*example*"/> </fileset> <fileset dir="${hadoop.home}/share/hadoop/common"> <include name="hadoop*.jar" /> <exclude name="*test*"/> <exclude name="*example*"/> </fileset> <fileset dir="${hadoop.home}/share/hadoop/hdfs"> <include name="hadoop*.jar" /> <exclude name="*test*"/> <exclude name="*example*"/> </fileset> <fileset dir="${hadoop.home}/share/hadoop/yarn"> <include name="hadoop*.jar" /> <exclude name="*test*"/> <exclude name="*example*"/> </fileset> <fileset dir="${hadoop.home}/share/hadoop/common/lib"> <include name="protobuf-java-*.jar" /> <include name="log4j-*.jar" /> <include name="commons-cli-*.jar" /> <include name="commons-collections-*.jar" /> <include name="commons-configuration-*.jar" /> <include name="commons-lang-*.jar" /> <include name="jackson-core-asl-*.jar" /> <include name="jackson-mapper-asl-*.jar" /> <include name="slf4j-log4j12-*.jar" /> <include name="slf4j-api-*.jar" /> <include name="guava-*.jar" /> <include name="hadoop-annotations-*.jar" /> <include name="hadoop-auth-*.jar" /> <include name="commons-cli-*.jar" /> <include name="netty-*.jar" /> </fileset> </copy> </target> <target name="compile" depends="init" unless="skip.contrib"> <echo message="contrib: ${name}" /> <javac fork="true" executable="${jdk.home}/bin/javac" encoding="${build.encoding}" srcdir="${src.dir}" includes="**/*.java" destdir="${build.classes}" debug="${javac.debug}" deprecation="${javac.deprecation}" includeantruntime="on"> <classpath refid="eclipse-sdk-jars" /> <classpath refid="project-jars" /> </javac> </target> <target name="jar" depends="compile" unless="skip.contrib"> <pathconvert property="mf.classpath" pathsep=",lib/"> <path refid="project-jars" /> <flattenmapper /> </pathconvert> <jar jarfile="${build.dir}/hadoop-${hadoop.version}-eclipse-${eclipse.version}-plugin.jar" manifest="${root}/META-INF/MANIFEST.MF"> <manifest> <attribute name="Bundle-ClassPath" value="classes/,lib/${mf.classpath}" /> </manifest> <fileset dir="${build.dir}" includes="classes/ lib/" /> <fileset dir="${root}" includes="resources/ plugin.xml" /> </jar> </target> <target name="clean"> <echo message="contrib: ${name}" /> <delete dir="${build.dir}" /> </target> </project>
最前面5个属性中，jdk.home指定编译时用的jdk，hadoop和eclipse版本号是用来给jar起名字的，hadoop.home是hadoop安装目录，会从里面提取需要的文件，eclipse.home是eclipse的安装目录，MyEclipse中是那个Common目录。
原版中坑爹的jar包版本号无视了，MANIFEST.MF的classpath值也懒得去改了，都自动了，虽然自动会多了几个值，但是总比少的好。
又回到最开始的问题，new hadoop location时的窗口问题，是因为少了commons-collections包，所以直接从hadoop安装目录把这个包拉进来打包了，然后问题解决！
用jdk1.6编译了两个插件包，MyEclipse10的和Eclipse4.4的，都能用。至于上传文件时由于当前用户名导致的权限问题，这个就是改配置或改代码的事情了，我是编译前直接在源码里面加了两行，反正插件随便编译一下就有了。
最后附上官方源码，里面原先那个打包好的插件干掉了，都是旧的，还巨大无比！下载源码包
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