kettle-8.3.0.0连接MySQL报错

Posted 2022-11-29 浅汐王

问题描述：

点击 "测试" 以后，报错信息如下：

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


	at org.pentaho.di.core.database.Database.normalConnect(Database.java:477)
	at org.pentaho.di.core.database.Database.connect(Database.java:373)
	at org.pentaho.di.core.database.Database.connect(Database.java:344)
	at org.pentaho.di.core.database.Database.connect(Database.java:334)
	at org.pentaho.di.ui.core.database.dialog.XulDatabaseExplorerController.createDatabaseNodes(XulDatabaseExplorerController.java:381)
	at org.pentaho.di.ui.core.database.dialog.XulDatabaseExplorerController.init(XulDatabaseExplorerController.java:130)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:313)
	at org.pentaho.ui.xul.impl.AbstractXulDomContainer.initialize(AbstractXulDomContainer.java:141)
	at org.pentaho.ui.xul.swt.SwtXulRunner$1.run(SwtXulRunner.java:67)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Unknown Source)
	at org.eclipse.swt.widgets.Display.syncExec(Unknown Source)
	at org.pentaho.ui.xul.swt.SwtXulRunner.initialize(SwtXulRunner.java:64)
	at org.pentaho.di.ui.core.database.dialog.XulDatabaseExplorerDialog.open(XulDatabaseExplorerDialog.java:92)
	at org.pentaho.di.ui.core.database.dialog.DataOverrideHandler.explore(DataOverrideHandler.java:86)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:313)
	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:157)
	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:141)
	at org.pentaho.ui.xul.swt.tags.SwtButton.access$500(SwtButton.java:43)
	at org.pentaho.ui.xul.swt.tags.SwtButton$4.widgetSelected(SwtButton.java:137)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.notifyListeners(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:89)
	at org.pentaho.di.ui.xul.KettleDialog.show(KettleDialog.java:56)
	at org.pentaho.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:117)
	at org.pentaho.di.ui.core.database.dialog.DatabaseDialog.open(DatabaseDialog.java:61)
	at org.pentaho.di.ui.spoon.delegates.SpoonDBDelegate.newConnection(SpoonDBDelegate.java:495)
	at org.pentaho.di.ui.spoon.delegates.SpoonDBDelegate.newConnection(SpoonDBDelegate.java:482)
	at org.pentaho.di.ui.spoon.Spoon.newConnection(Spoon.java:8836)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:313)
	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:157)
	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:141)
	at org.pentaho.ui.xul.jface.tags.JfaceMenuitem.access$100(JfaceMenuitem.java:43)
	at org.pentaho.ui.xul.jface.tags.JfaceMenuitem$1.run(JfaceMenuitem.java:106)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:545)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:490)
	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:402)
	at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
	at org.eclipse.swt.widgets.Widget.notifyListeners(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.spoon.Spoon.readAndDispatch(Spoon.java:1384)
	at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7949)
	at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9331)
	at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:710)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.pentaho.commons.launcher.Launcher.main(Launcher.java:92)
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.Driver

	at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:520)
	at org.pentaho.di.core.database.Database.normalConnect(Database.java:461)
	... 74 more
Caused by: java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:495)
	... 75 more

解决办法：

1. 下载jar包：mysql-connector-java-5.1.46.jar

2. 放到Kettle安装目录下：/kettle-8.3.0.0/lib/

3. 重启spoon.sh问题解决：