爱华网1.hadoop-eclipse-plugin源码如何下载？
2.插件编译需要哪些准备？
3.使用什么命令可以编译Eclipse插件？
制作过程：
1.首先从git下载源码
下载地址：
https://github.com/winghc/hadoop2x-eclipse-plugin百度网盘下载：
链接：http://pan.baidu.com/s/1o6DMY4U 密码：y95i
下载之后，我们会看到下面文件夹
对于像安装git的用户，可以查看下面帖子
软件版本控制-在Windows中使用Git视频介绍
win7安装 git软件下载以及遇到的问题解决解决方法
2.win7编译
2.1编译准备
win7的编译首先需要安装jdk、ant、Eclipse
同样window也可以进行编译，环境如下图所示这里的
Eclipse的版本：
Version: 3.9.1.201308190730
Build id: 3.9.0.201308190730
Eclipse的安装
Eclipse安装很重要，而且版本很重要，最好能版本一致，因为如果你在Linux制作的插件，只能用于Linux，windows插件只能用于windows，具体的Eclipse版本也尽可能一致，否则会遇到各种问题
2.2编译
aboutyun@master:~/hadoop2x-eclipse-plugin/src/contrib/eclipse-plugin$ ant jar -Dversion=2.5.0 -Declipse.home=/usr/eclipse -Dhadoop.home=/usr/hadoop
参数说明：
1.Dversion是你编译的版本，此版本为2.5.0
2.Declipse.home是Eclipse安装目录
3.Dhadoop.home是Hadoop安装目录
执行如下命令：
E:hadoop2x-eclipse-pluginsrccontribeclipse-plugin>ant jar -Dversion=2.5.0 -D
eclipse.home=E:eclipseIDE -Dhadoop.home=E:bianyihadoop-2.2.0
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上面Hadoop home需要说明的是，这里并不是使用的Hadoop2.5.0，经过各种验证，Dhadoop.home如果使用的是Hadoop2.5是非常痛苦的，需要各种修改，而且不一定能改正确。那么为什么Hadoop home是Hadoop2.2版本的也可以连接Hadoop2.5，这个需要了解内部原理了，感兴趣的同学，可以研究下。
下面附上在win7下，Eclipse版本为3.9.1的插件
链接：http://pan.baidu.com/s/1dDkZbWH 密码：游客，如果您要查看本帖隐藏内容请回复
然后尝试连接集群：
首先确认集群版本：
1.把插件放入plugins文件夹
然后打开win7下Eclipse，将hadoop-eclipse-plugin-2.5.0.jar插件放到Eclipse安装目录的plugins文件夹下，我这里的路径是E:eclipseIDEplugins
其实放到这里面已经完成大部分了。
2.重启Eclipse
通过window-》preference 找到下图所示，选择Hadoop安装目录
3.创建New hadoop location
通过下面操作，单击other
弹出show view对话框，然后单击map/reduce location
看到小象，如下图
右键New hadoop location
4.配置New hadoop location
5.查看效果
配置完毕，查看效果
问题总结：
插件的制作过程还是比较复杂的，原先使用的是Hadoop2.5版本，编译成功了，不能创建New Hadoop location查看log下面问题
java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration
at org.apache.hadoop.eclipse.server.HadoopServer.<init>(HadoopServer.java:224)
at org.apache.hadoop.eclipse.servers.HadoopLocationWizard.<init>(HadoopLocationWizard.java:88)
at org.apache.hadoop.eclipse.actions.NewLocationAction$1.<init>(NewLocationAction.java:41)
at org.apache.hadoop.eclipse.actions.NewLocationAction.run(NewLocationAction.java:40)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:499)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
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网上有很多这方面的资料，尝试，但是还是未能解决。
使用Hadoop2.5作为编译目录，遇到下面问题：
ivy-resolve-common:
[ivy:resolve]
[ivy:resolve] :: problems summary ::
[ivy:resolve] :::: WARNINGS
[ivy:resolve] module not found: org.apache.hadoop#hadoop-mapreduce-cli
ent-jobclient;2.5.0
[ivy:resolve] ==== maven2: tried
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-mapredu
ce-client-jobclient/2.5.0/hadoop-mapreduce-client-jobclient-2.5.0.pom
[ivy:resolve] -- artifact org.apache.hadoop#hadoop-mapreduce-client-jobclien
t;2.5.0!hadoop-mapreduce-client-jobclient.jar:
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-mapredu
ce-client-jobclient/2.5.0/hadoop-mapreduce-client-jobclient-2.5.0.jar
[ivy:resolve] module not found: org.apache.hadoop#hadoop-mapreduce-cli
ent-core;2.5.0
[ivy:resolve] ==== maven2: tried
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-mapredu
ce-client-core/2.5.0/hadoop-mapreduce-client-core-2.5.0.pom
[ivy:resolve] -- artifact org.apache.hadoop#hadoop-mapreduce-client-core;2.5
.0!hadoop-mapreduce-client-core.jar:
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-mapredu
ce-client-core/2.5.0/hadoop-mapreduce-client-core-2.5.0.jar
[ivy:resolve] module not found: org.apache.hadoop#hadoop-mapreduce-cli
ent-common;2.5.0
[ivy:resolve] ==== maven2: tried
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-mapredu
ce-client-common/2.5.0/hadoop-mapreduce-client-common-2.5.0.pom
[ivy:resolve] -- artifact org.apache.hadoop#hadoop-mapreduce-client-common;2
.5.0!hadoop-mapreduce-client-common.jar:
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-mapredu
ce-client-common/2.5.0/hadoop-mapreduce-client-common-2.5.0.jar
[ivy:resolve] module not found: org.apache.hadoop#hadoop-hdfs;2.5.0
[ivy:resolve] ==== maven2: tried
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-hdfs/2.
5.0/hadoop-hdfs-2.5.0.pom
[ivy:resolve] -- artifact org.apache.hadoop#hadoop-hdfs;2.5.0!hadoop-hdfs.ja
r:
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-hdfs/2.
5.0/hadoop-hdfs-2.5.0.jar
[ivy:resolve] module not found: org.apache.hadoop#hadoop-common;2.5.0
[ivy:resolve] ==== maven2: tried
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-common/
2.5.0/hadoop-common-2.5.0.pom
[ivy:resolve] -- artifact org.apache.hadoop#hadoop-common;2.5.0!hadoop-commo
n.jar:
[ivy:resolve] http://repo1.maven.org/maven2/org/apache/hadoop/hadoop-common/
2.5.0/hadoop-common-2.5.0.jar
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: UNRESOLVED DEPENDENCIES ::
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: org.apache.hadoop#hadoop-mapreduce-client-jobclient;2
.5.0: not found
[ivy:resolve] :: org.apache.hadoop#hadoop-mapreduce-client-core;2.5.0:
not found
[ivy:resolve] :: org.apache.hadoop#hadoop-mapreduce-client-common;2.5.
0: not found
[ivy:resolve] :: org.apache.hadoop#hadoop-hdfs;2.5.0: not found
[ivy:resolve] :: org.apache.hadoop#hadoop-common;2.5.0: not found
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve]
[ivy:resolve]
[ivy:resolve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
BUILD FAILED
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经过多次修改未果，由于Hadoop Eclipse插件源码使用的是Hadoop2.2所以，就尝试用是Hadoop2.2作为Hadoop home，竟然编译成功了。
