所有资料的目录：
https://wiki.pentaho.com/collector/pages.action?key=EAI
转换步骤说明文档：
https://wiki.pentaho.com/display/EAI/Pentaho+Data+Integration+Steps
作业步骤说明文档：
https://wiki.pentaho.com/display/EAI/Pentaho+Data+Integration+Job+Entries