問題描述
說的是沒有發現org.gjt.mm.mysql.Driver驅動，故而我們下載自己mysql對應的版本。
錯誤連接數據庫 [mysql] : 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
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.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:83)
at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestResults(DatabaseFactory.java:112)
at org.pentaho.di.core.database.DatabaseMeta.testConnectionSuccess(DatabaseMeta.java:2843)
at org.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:621)
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.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:80)
at org.pentaho.di.ui.xul.KettleDialog.show(KettleDialog.java:47)
at org.pentaho.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:116)
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.doubleClickedInTree(Spoon.java:3096)
at org.pentaho.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:3066)
at org.pentaho.di.ui.spoon.Spoon.access$1700(Spoon.java:372)
at org.pentaho.di.ui.spoon.Spoon$26.widgetDefaultSelected(Spoon.java:6205)
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.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1381)
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7816)
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9178)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:707)
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)
... 49 more
Caused by: java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:495)
... 50 more
主機名 : localhost
端口 : 3306
數據庫名:test
問題分析
分析上面報錯原因：是org.gjt.mm.mysql路徑下沒有找到Driver.class,所以下載的jar包一定要包含這個路徑下的Driver.class文件
所以原因有兩種：
1 是你沒有下載mysql 的jdbc驅動jar包
2 你下載的驅動包下不存在org.gjt.mm.mysql路徑下的Driver.class文件
問題解決
所以不光是下載jar包， 還要看jar包下是否包含有org.gjt.mm.mysql該路徑下的 Driver.class文件
把解壓的這倆個jar包放到kettle …/lib下面
路徑：D:\kettle\data-integration\lib
測試連接
1.選擇一般模式
2.自己設置自己的連接名字，最好符合數據名設置
3.連接的名字或者ip
4.填寫自己的數據庫，這里的數據庫在mysql里面必須用不然會報錯
5.3306端口默認
6.用戶信息
7.測試連接
8.成功
