環境：

Kettle：kettle-spoon 版本stable release -4.3.0

Mysql：MySQL Server 5.5

?數據庫連接信息：

?測試數據庫連接情況。

?

?

錯誤連接數據庫 [MySql-1] :org.pentaho.di.core.exception.KettleDatabaseException:

Erroroccured while trying to connect to the database

?

Exceptionwhile loading class

org.gjt.mm.mysql.Driver

?

org.pentaho.di.core.exception.KettleDatabaseException:

Erroroccured while trying to connect to the database

?

Exceptionwhile loading class

org.gjt.mm.mysql.Driver

?

?

???????? atorg.pentaho.di.core.database.Database.normalConnect(Database.java:368)

???????? at org.pentaho.di.core.database.Database.connect(Database.java:317)

???????? atorg.pentaho.di.core.database.Database.connect(Database.java:279)

???????? atorg.pentaho.di.core.database.Database.connect(Database.java:269)

???????? atorg.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:86)

???????? atorg.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2464)

???????? atorg.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:533)

???????? atsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

???????? atsun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

???????? atsun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

???????? atjava.lang.reflect.Method.invoke(Unknown Source)

???????? atorg.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:329)

???????? atorg.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:139)

???????? atorg.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:123)

???????? atorg.pentaho.ui.xul.swt.tags.SwtButton.access$500(SwtButton.java:26)

???????? atorg.pentaho.ui.xul.swt.tags.SwtButton$4.widgetSelected(SwtButton.java:119)

???????? atorg.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)

???????? atorg.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)

???????? atorg.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)

???????? atorg.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)

???????? atorg.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)

???????? atorg.eclipse.jface.window.Window.runEventLoop(Window.java:820)

???????? atorg.eclipse.jface.window.Window.open(Window.java:796)

???????? atorg.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:378)

???????? atorg.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:304)

???????? atorg.pentaho.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:115)

???????? atorg.pentaho.di.ui.core.database.dialog.DatabaseDialog.open(DatabaseDialog.java:62)

???????? atorg.pentaho.di.ui.spoon.delegates.SpoonDBDelegate.editConnection(SpoonDBDelegate.java:88)

???????? at org.pentaho.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:2792)

???????? atorg.pentaho.di.ui.spoon.Spoon.access$1900(Spoon.java:310)

???????? atorg.pentaho.di.ui.spoon.Spoon$24.widgetDefaultSelected(Spoon.java:5275)

???????? atorg.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)

???????? at org.eclipse.swt.widgets.EventTable.sendEvent(UnknownSource)

???????? atorg.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)

???????? atorg.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)

???????? atorg.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)

???????? at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1183)

???????? atorg.pentaho.di.ui.spoon.Spoon.start(Spoon.java:6968)

???????? atorg.pentaho.di.ui.spoon.Spoon.main(Spoon.java:567)

???????? atsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

???????? at sun.reflect.NativeMethodAccessorImpl.invoke(UnknownSource)

???????? atsun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

???????? atjava.lang.reflect.Method.invoke(Unknown Source)

???????? atorg.pentaho.commons.launcher.Launcher.main(Launcher.java:134)

Causedby: org.pentaho.di.core.exception.KettleDatabaseException:

Exceptionwhile loading class

org.gjt.mm.mysql.Driver

?

???????? atorg.pentaho.di.core.database.Database.connectUsingClass(Database.java:423)

???????? atorg.pentaho.di.core.database.Database.normalConnect(Database.java:352)

???????? ... 43 more

Causedby: java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver

???????? atjava.net.URLClassLoader$1.run(Unknown Source)

???????? atjava.net.URLClassLoader$1.run(Unknown Source)

???????? atjava.security.AccessController.doPrivileged(Native Method)

???????? at java.net.URLClassLoader.findClass(UnknownSource)

???????? atjava.lang.ClassLoader.loadClass(Unknown Source)

???????? atjava.lang.ClassLoader.loadClass(Unknown Source)

???????? at java.lang.Class.forName0(NativeMethod)

???????? at java.lang.Class.forName(UnknownSource)

???????? at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:414)

???????? ... 44 more

?

主機名?????? : 192.168.2.1

端口?????????? : 3306

數據庫名:test

?

?

內事不決問百度，外事不決問谷歌。那就問問吧。

?

將對應的mysql驅動包（mysql-connector-java-5.1.15-bin.jar）放到下kettle的目錄：data-integration\libext\JDBC下。

?

再次進行連接測試通過。

總結

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