Kettle连接Mysql数据库异常的原因

报错信息： Error connecting to database [111] : org.pentaho.di.core.exception.KettleDatabaseException: Error occured while trying to connect to the database Exception while loading class org.gjt.mm.mysql.Driver org.pentaho.di.core.exception.KettleDatabaseException: Error occured while trying to connect to the database Exception while loading class org.gjt.mm.mysql.Driver 原因分析：kettle和mysql两个项目对jdbc封装的包名或者协议不一样 把项目中连接mysql数据库jar包拷贝到AppPath\data-integration\libext\JDBC 重启kettle spoon即可解决。