1、前期准备

    Linux系统
    Python（最好是2）
    Jdk 1.8以上

2、安装Python2

--更新软件包

sudo apt update

--安装python2
sudo apt install python2

--查看python版本
python2 --version

3、下载DataX

Linux下载DataX

wget http://datax-opensource.oss-cn-hangzhou.aliyuncs.com/datax.tar.gz

解压

tar -zxvf datax.tar.gz

4、增加DataX Job（DataX数据迁移任务）

读取库：SQL Server

写入库：MongoDB

SqlServerToMongodb.json内容如下

{"job": {"setting": {"speed": {"channel": 5}},"content": [{"reader": {"name": "sqlserverreader","parameter": {"username": "用户名","password": "密码","column": ["id","version","created","modified","code","name"],"splitPk": "pk","where": "","connection": [{"table": ["EMPLOYEE"],"jdbcUrl": ["jdbc:sqlserver://127.0.0.1:1433;DatabaseName=TEST"]}]}},"writer": {"name": "mongodbwriter","parameter": {"address": ["127.0.0.1:27017"],"userName": "datax","userPassword": "datax","dbName": "TEST","collectionName": "employee","column": [{"name": "id","type": "string"}, {"name": "version","type": "int"}, {"name": "created","type": "date"}, {"name": "modified","type": "date"}, {"name": "code","type": "string"}, {"name": "name","type": "string"}]}}}]}
}

字段名	描述
channel	datax线程数（分几个线程执行）
	其他参数查看下面参考资料

本文是SqlServerToMongodb的示例，其他查看github里面其他库的读写文档

参考资料：

GitHub - alibaba/DataX: DataX是阿里云DataWorks数据集成的开源版本。

https://github.com/alibaba/DataX/blob/master/sqlserverreader/doc/sqlserverreader.md

https://github.com/alibaba/DataX/blob/master/mongodbwriter/doc/mongodbwriter.md

5、启动任务

进入bin目录

执行命令（具体目录以自己放的位置为主）：

python2 datax.py ../job/SqlServerToMongodb.json