安装java8环境

之前已经安装好的话可跳过这一步

使用root用户操作
下载Java 8SE
jdk-8u241-linux-x64.tar.gz

安装Java 8SE
cd /root/Desktop/1 #该目录是介质所在目录
tar xvfz jdk-8u241-linux-x64.tar.gz -C /usr

ln -s /usr/jdk1.8.0_241 /usr/jdk
cat>> **/etc/profile**<<EOF

JAVA_HOME=/usr/jdk
export JAVA_HOME
CLASSPATH=.:\$JAVA_HOME/lib:\$CLASSPATH
export CLASSPATH
PATH=\$JAVA_HOME/bin:\$PATH
export PATH
EOF

使配置文件生效
source /etc/profile

查看java是否安装成功
java -version

下载Hadoop 2.7.7源代码并编译

编译hadoop2.7.7可参考之前的文档：https://www.yuque.com/duyanyao/bn83p9/cg72bi

以root用户执行如下：
cd /opt
mkdir hadoop-2.7.7
chown hadoop.hadoop hadoop-2.7.7/
ln -s /opt/hadoop-2.7.7 /opt/hadoop
chown hadoop.hadoop hadoop

以hadoop用户执行如下：
cd /home/hadoop/Desktop/1
tar xvfz hadoop-2.7.7.tar.gz -C /opt

下载hadoop2x-eclipse-plugin源代码：

下载地址是https://github.com/winghc/hadoop2x-eclipse-plugin

以hadoop用户执行
cd /home/hadoop/Desktop/1
unzip hadoop2x-eclipse-plugin-master.zip

下载并安装eclipse

eclipse-java-oxygen-3a-linux-gtk-x86_64.tar.gz

创建Eclipse安装目录

以root用户的身份执行如下:
mkdir /opt/eclipse
chown -R hadoop.hadoop /opt/eclipse

解压Eclipse软件

用hadoop用户执行如下:
cd /home/hadoop/Desktop/1 #该目录是介质所在目录
tar xvfz eclipse-java-oxygen-3a-linux-gtk-x86_64.tar.gz -C /opt

cat>> /etc/profile<<EOF

export ECLIPSE_HOME=/opt/eclipse
export PATH=\$ECLIPSE_HOME:\$PATH

EOF

下载并安装Ant

下载地址：https://ant.apache.org/bindownload.cgi
apache-ant-1.9.4-bin.tar.gz
以root用户执行如下：
cd /root/Desktop/1
tar xvfz apache-ant-1.9.4-bin.tar.gz -C /usr
mv /usr/apache-ant-1.9.4 /usr/ant

cat>> /etc/profile<<EOF

export ANT_HOME=/usr/ant
export PATH=\$ANT_HOME/bin:\$PATH

EOF

使配置文件生效
source /etc/profile
查看ant版本：
ant -version

修改依赖包版本文件libraries.properties

参考目录/opt/hadoop/share/hadoop/common/lib中的文件，来修改libraries.properties相应的版本号。
cd /opt/hadoop/share/hadoop/common/lib
ls

对 libraries.properties进行修改
cd /home/hadoop/Desktop/1/hadoop2x-eclipse-plugin-master/ivy
vi libraries.properties

编辑完成后查看该文件的内容
cat libraries.properties

#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#This properties file lists the versions of the various artifacts used by hadoop and components.
#It drives ivy and the generation of a maven POM
# This is the version of hadoop we are generating
hadoop.version=2.7.7
hadoop-gpl-compression.version=0.1.0
#These are the versions of our dependencies (in alphabetical order)
apacheant.version=1.9.4
ant-task.version=2.0.10
asm.version=3.2
aspectj.version=1.6.5
aspectj.version=1.6.11
checkstyle.version=4.2
commons-cli.version=1.2
commons-codec.version=1.4
commons-collections.version=3.2.2
commons-configuration.version=1.6
commons-daemon.version=1.0.13
commons-httpclient.version=3.1
commons-lang.version=2.6
commons-logging.version=1.1.3
commons-logging-api.version=1.1.3
commons-math.version=3.1.1
commons-el.version=1.0
commons-fileupload.version=1.2
commons-io.version=2.4
commons-net.version=3.1
core.version=3.1.1
coreplugin.version=1.3.2
hsqldb.version=1.8.0.10
htrace.version=3.1.0
ivy.version=2.1.0
jasper.version=5.5.12
jackson.version=1.9.13
#not able to figureout the version of jsp & jsp-api version to get it resolved throught ivy
# but still declared here as we are going to have a local copy from the lib folder
jsp.version=2.1
jsp-api.version=2.1
jsp-api-2.1.version=6.1.14
jsp-2.1.version=6.1.14
jets3t.version=0.9.0
jetty.version=6.1.26
jetty-util.version=6.1.26
jersey-core.version=1.8
jersey-json.version=1.8
jersey-server.version=1.8
junit.version=4.11
jdeb.version=0.8
jdiff.version=1.0.9
json.version=1.0
kfs.version=0.1
log4j.version=1.2.17
lucene-core.version=2.3.1
mockito-all.version=1.8.5
jsch.version=0.1.42
oro.version=2.0.8
rats-lib.version=0.5.1
servlet.version=4.0.6
servlet-api.version=2.5
slf4j-api.version=1.7.10
slf4j-log4j12.version=1.7.10
wagon-http.version=1.0-beta-2
xmlenc.version=0.52
xerces.version=1.4.4
protobuf.version=2.5.0
guava.version=11.0.2
netty.version=3.6.2.Final

修改build.xml文件

cd /home/hadoop/Desktop/1/hadoop2x-eclipse-plugin-master/src/contrib/eclipse-plugin
vi build.xml
添加以下绿色的行（如果有就不需要！）















删除替换**
删除以下行

替换成

删除lib的最后一行

lib/servlet-api-${servlet-api.version}.jar
lib/commons-io-${commons-io.version}.jar
lib/htrace-core-${htrace.version}-incubating.jar”/>

修改代码
修改文件build.xml(位置：…\hadoop2x-eclipse-plugin-master\src\contrib\eclipse-plugin)
把这一行(大概在68行左右)原来的target中的depends=“init, ivy-retrieve-common” 去掉其中的 ivy-retrieve-common后重新编译

cd /home/hadoop/Desktop/1/hadoop2x-eclipse-plugin-master/src/contrib/eclipse-plugin
vi build.xml
set nu #显示行号

编译eclipse插件

cd /home/hadoop/Desktop/1/hadoop2x-eclipse-plugin-master/src/contrib/eclipse-plugin

ant jar -Dversion=2.7.7 -Dhadoop.version=2.7.7 -Declipse.home=/opt/eclipse -Dhadoop.home=/opt/hadoop -debug

version: plugin version
hadoop.version: hadoop version you want to compiled with
eclipse.home: path of eclipse home
hadoop.home: path of hadoop 2.x home

编译好的jar包

cd /home/hadoop/Desktop/1/hadoop2x-eclipse-plugin-master/build/contrib/eclipse-plugin
ls

错误：
1.bash: ls: command not found…
Similar command is: ‘lz
https://blog.csdn.net/u013129944/article/details/53906148
解决办法:
使用绝对命令vi打开profile
/bin/vi /etc/profile
添加:
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin