现在JDK版本是需要1.8了，官方源码都进行了升级

# 卸载默认环境
yum -y remove java-1.8.0-openjdk*         
yum -y remove tzdata-java*
# 下载安装依赖
yum install -y java-1.8.0-openjdk java-1.8.0-openjdk-devel

# 查到系统默认安装jdk的位置/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/jre/bin/java
[root@ansible-server randolph]# ls -lrt /usr/bin/java
lrwxrwxrwx 1 root root 22 8月  23 13:42 /usr/bin/java -> /etc/alternatives/java
[root@ansible-server randolph]# ls -lrt /etc/alternatives/java
lrwxrwxrwx 1 root root 73 8月  23 13:42 /etc/alternatives/java -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/jre/bin/java

# 加到环境变量
vim /etc/profile

# jdk
export JAVA_HOME=/usr/lib/jvm/java-1.8.0
export JRE_HOME=$JAVA_HOME/jre  
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib

source /etc/profile

# 检测
java -version
javac

cd /opt/
wget https://mirrors.tuna.tsinghua.edu.cn/apache/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz
tar -zxvf apache-maven-3.6.3-bin.tar.gz
mv apache-maven-3.6.3/ maven 		# 改名方便操作
vim /etc/profile		# 修改配置文件，并在末尾添加

# maven
M2_HOME=/opt/maven		# 这里的路径注意下
export PATH=${M2_HOME}/bin:${PATH}

# 重载文件立即生效
source /etc/profile

检查maven安装是否成功
mvn -v

检查maven已经安装

[root@ansible-server opt]# mvn -v
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /opt/maven
Java version: 1.8.0_222, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-957.27.2.el7.x86_64", arch: "amd64", family: "unix"

实际上有python2/3都OK，后面datax的bin文件夹下的三个py文件datax.py也有python2/3版本，在执行命令的时候只需要对应即可。

[root@client-1 ~]# cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core) 
[root@ansible-server DataX]# java -version
openjdk version "1.8.0_232"
OpenJDK Runtime Environment (build 1.8.0_232-b09)
OpenJDK 64-Bit Server VM (build 25.232-b09, mixed mode)
[root@ansible-server ~]# python -V
Python 2.7.15
[root@ansible-server ~]# python3 -V
Python 3.6.8

git clone https://github.com/alibaba/DataX.git
cd DataX
mvn -U clean package assembly:assembly -Dmaven.test.skip=true		# maven打包

等待编译好久…
竟然编译了39分钟！！！

留个纪念：

[INFO] datax/lib/slf4j-api-1.7.10.jar already added, skipping
[INFO] datax/lib/logback-classic-1.0.13.jar already added, skipping
[INFO] datax/lib/logback-core-1.0.13.jar already added, skipping
[INFO] datax/lib/commons-math3-3.1.1.jar already added, skipping
[INFO] datax/lib/hamcrest-core-1.3.jar already added, skipping
[WARNING] Assembly file: /opt/DataX/target/datax is not a regular file (it may be a directory). It cannot be attached to the project build for installation or deployment.
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for datax-all 0.0.1-SNAPSHOT:
[INFO] 
[INFO] datax-all .......................................... SUCCESS [03:23 min]
[INFO] datax-common ....................................... SUCCESS [ 22.458 s]
[INFO] datax-transformer .................................. SUCCESS [ 25.734 s]
[INFO] datax-core ......................................... SUCCESS [01:02 min]
[INFO] plugin-rdbms-util .................................. SUCCESS [ 20.741 s]
[INFO] mysqlreader ........................................ SUCCESS [  1.096 s]
[INFO] drdsreader ......................................... SUCCESS [  2.539 s]
[INFO] sqlserverreader .................................... SUCCESS [  1.885 s]
[INFO] postgresqlreader ................................... SUCCESS [  5.029 s]
[INFO] oraclereader ....................................... SUCCESS [  1.047 s]
[INFO] odpsreader ......................................... SUCCESS [ 43.033 s]
[INFO] otsreader .......................................... SUCCESS [ 31.965 s]
[INFO] otsstreamreader .................................... SUCCESS [ 16.498 s]
[INFO] plugin-unstructured-storage-util ................... SUCCESS [03:08 min]
[INFO] txtfilereader ...................................... SUCCESS [  5.172 s]
[INFO] hdfsreader ......................................... SUCCESS [06:13 min]
[INFO] streamreader ....................................... SUCCESS [  1.028 s]
[INFO] ossreader .......................................... SUCCESS [ 12.157 s]
[INFO] ftpreader .......................................... SUCCESS [  6.172 s]
[INFO] mongodbreader ...................................... SUCCESS [  9.056 s]
[INFO] rdbmsreader ........................................ SUCCESS [  1.186 s]
[INFO] hbase11xreader ..................................... SUCCESS [04:06 min]
[INFO] hbase094xreader .................................... SUCCESS [02:57 min]
[INFO] tsdbreader ......................................... SUCCESS [  7.664 s]
[INFO] opentsdbreader ..................................... SUCCESS [02:45 min]
[INFO] cassandrareader .................................... SUCCESS [ 35.874 s]
[INFO] mysqlwriter ........................................ SUCCESS [  0.861 s]
[INFO] drdswriter ......................................... SUCCESS [  1.111 s]
[INFO] odpswriter ..........................
                            
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                            原文链接：https://blog.csdn.net/qq_33997198/article/details/103508278

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