報錯信息如下：
錯誤連接數據庫 [{mysql連接名稱}] : org.pentaho.di.core.exception.KettleDatabaseException:
Error occurred while trying to connect to the database
Driver class ‘org.gjt.mm.mysql.Driver‘ could not be found, make sure the ‘MySQL‘ driver (jar file) is installed.
org.gjt.mm.mysql.Driver
org.pentaho.di.core.exception.KettleDatabaseException:
Error occurred while trying to connect to the database
Driver class ‘org.gjt.mm.mysql.Driver‘ could not be found, make sure the ‘MySQL‘ driver (jar file) is installed.
org.gjt.mm.mysql.Driver
很明顯，是因爲沒有找到mysql連接驅動jar包。
解決方法：
第一步，下載mysql連接驅動
https://cdn.mysql.com//Downloads/Connector-J/mysql-connector-java-5.1.48.zip
(若有新版本發佈，只需將鏈接中的版本號修改爲最新的版本即可)
第二步，解壓上一步下載的壓縮包，將mysql-connector-java-5.1.48-bin.jar複製到Kettle安裝目錄下，即\pdi-ce-xxxxxxx\data-integration\lib目錄下。
第三步，重啓Spoon.bat，問題解決。若不重啓Spoon.bat，仍會報錯。