kettle 5.01 连接数据源

                     5以上的版本，从官方下载的kettle 他并没有提供你所需要的各个数据库的驱动的，所以当你配置好，进行测试的时候会报错。

      简单来说就是缺少数据库驱动 4以上5一下的版本将你所需要的驱动放在libext目录下 5以后上的直接放在lib目录下面就可以了。

错误连接数据库 [mysql] : org.pentaho.di.core.exception.KettleDatabaseException: Error occured while trying to connect to the databaseDriver class 'org.gjt.mm.mysql.Driver' could not be found, make sure the 'MySQL' driver (jar file) is installed.org.gjt.mm.mysql.Driverorg.pentaho.di.core.exception.KettleDatabaseException: Error occured while trying to connect to the databaseDriver class 'org.gjt.mm.mysql.Driver' could not be found, make sure the 'MySQL' driver (jar file) is installed.org.gjt.mm.mysql.Driverat org.pentaho.di.core.database.Database.normalConnect(Database.java:415)at org.pentaho.di.core.database.Database.connect(Database.java:353)at org.pentaho.di.core.database.Database.connect(Database.java:306)at org.pentaho.di.core.database.Database.connect(Database.java:294)at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:84)at org.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2459)at org.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:541)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:329)at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:139)at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:123)at org.pentaho.ui.xul.swt.tags.SwtButton.access$500(SwtButton.java:26)at org.pentaho.ui.xul.swt.tags.SwtButton$4.widgetSelected(SwtButton.java:121)at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)at org.eclipse.jface.window.Window.open(Window.java:796)at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:375)at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:301)at org.pentaho.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:115)at org.pentaho.di.ui.core.database.dialog.DatabaseDialog.open(DatabaseDialog.java:62)at org.pentaho.di.ui.repository.kdr.KettleDatabaseRepositoryDialog$1.widgetSelected(KettleDatabaseRepositoryDialog.java:198)at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)at org.pentaho.di.ui.repository.kdr.KettleDatabaseRepositoryDialog.open(KettleDatabaseRepositoryDialog.java:320)at org.pentaho.di.ui.repository.kdr.KettleDatabaseRepositoryDialog.open(KettleDatabaseRepositoryDialog.java:75)at org.pentaho.di.ui.repository.RepositoriesHelper.newRepository(RepositoriesHelper.java:117)at org.pentaho.di.ui.repository.controllers.RepositoriesController.newRepository(RepositoriesController.java:273)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:329)at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:139)at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:123)at org.pentaho.ui.xul.swt.tags.SwtButton.access$300(SwtButton.java:26)at org.pentaho.ui.xul.swt.tags.SwtButton$2.mouseUp(SwtButton.java:87)at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)at org.eclipse.jface.window.Window.open(Window.java:796)at org.pentaho.di.ui.xul.KettleDialog.show(KettleDialog.java:53)at org.pentaho.di.ui.xul.KettleDialog.show(KettleDialog.java:20)at org.pentaho.di.ui.repository.controllers.RepositoriesController.show(RepositoriesController.java:194)at org.pentaho.di.ui.repository.RepositoriesDialog.show(RepositoriesDialog.java:102)at org.pentaho.di.ui.spoon.Spoon.selectRep(Spoon.java:7155)at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:7316)at org.pentaho.di.ui.spoon.Spoon.createContents(Spoon.java:8657)at org.eclipse.jface.window.Window.create(Window.java:426)at org.eclipse.jface.window.Window.open(Window.java:785)at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:8672)at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:625)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.pentaho.commons.launcher.Launcher.main(Launcher.java:134)Caused by: org.pentaho.di.core.exception.KettleDatabaseException: Driver class 'org.gjt.mm.mysql.Driver' could not be found, make sure the 'MySQL' driver (jar file) is installed.org.gjt.mm.mysql.Driverat org.pentaho.di.core.database.Database.connectUsingClass(Database.java:474)at org.pentaho.di.core.database.Database.normalConnect(Database.java:399)... 68 moreCaused by: java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driverat java.net.URLClassLoader$1.run(URLClassLoader.java:200)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:188)at java.lang.ClassLoader.loadClass(ClassLoader.java:307)at java.lang.ClassLoader.loadClass(ClassLoader.java:252)at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:467)... 69 more主机名       : 127.0.0.1端口           : 3306数据库名:jbpm4

作者 ：李志华