Pentaho與PostgreSQL的連接

Question

我在文件夾... data-integration \\ lib中有驅動程序postgresql-9.3-1103.jdbc3.jar並且也配置了classpah

我已經安裝了PostgreSQL 9.3，並且在PostgreSQL中有db prueba，但這是錯誤

Error connecting to database [PostgresDB] : org.pentaho.di.core.exception.KettleDatabaseException: 
Error occurred while trying to connect to the database

Error connecting to database: (using class org.postgresql.Driver)
Invalid connection URL url jdbc:postgresql://localhost:5432/prueba

org.pentaho.di.core.exception.KettleDatabaseException: 
Error occurred while trying to connect to the database

Error connecting to database: (using class org.postgresql.Driver)
Invalid connection URL url jdbc:postgresql://localhost:5432/prueba

at org.pentaho.di.core.database.Database.normalConnect(Database.java:428)
at org.pentaho.di.core.database.Database.connect(Database.java:358)
at org.pentaho.di.core.database.Database.connect(Database.java:311)
at org.pentaho.di.core.database.Database.connect(Database.java:301)
at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:80)
at org.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2686)
at org.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:546)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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:138)
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:389)
at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:318)
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:59)
at org.pentaho.di.ui.spoon.delegates.SpoonDBDelegate.editConnection(SpoonDBDelegate.java:87)
at org.pentaho.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:3084)
at org.pentaho.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:3019)
at org.pentaho.di.ui.spoon.Spoon.access$2400(Spoon.java:345)
at org.pentaho.di.ui.spoon.Spoon$27.widgetDefaultSelected(Spoon.java:6113)
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.spoon.Spoon.readAndDispatch(Spoon.java:1319)
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7939)
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9190)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:654)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:92)

Caused by: org.pentaho.di.core.exception.KettleDatabaseException: 
Error connecting to database: (using class org.postgresql.Driver)
Invalid connection URL url jdbc:postgresql://localhost:5432/prueba

at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:594)
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:4697)
at org.pentaho.di.core.database.Database.normalConnect(Database.java:414)
... 45 more

Caused by: java.lang.IllegalArgumentException: Invalid connection URL url jdbc:postgresql://localhost:5432/prueba
at org.mariadb.jdbc.JDBCUrl.parse(JDBCUrl.java:144)
at org.mariadb.jdbc.Driver.connect(Driver.java:95)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:574)
... 47 more

主機名：本地主機端口：5432數據庫名稱：prueba

Answer 1

在JDBC中， DriverManager將查詢所有已注冊的驅動程序，以查看它們是否可以使用URL進行連接。 如果驅動程序不支持提供的URL（例如，因為查詢的驅動程序用於Firebird，而URL用於PostgreSQL），則Driver.connect實現應返回null：

如果驅動程序意識到連接到給定URL的驅動程序類型錯誤，則應返回“ null”。 這是很常見的，因為當要求JDBC驅動程序管理器連接到給定的URL時，它將URL依次傳遞給每個已加載的驅動程序。

長話短說，如果您查看stacktrace，您將在底部看到：

Caused by: java.lang.IllegalArgumentException: Invalid connection URL url jdbc:postgresql://localhost:5432/prueba
at org.mariadb.jdbc.JDBCUrl.parse(JDBCUrl.java:144)
at org.mariadb.jdbc.Driver.connect(Driver.java:95)
at java.sql.DriverManager.getConnection(Unknown Source)

換句話說， org.mariadb.jdbc.Driver行為不當並拋出java.lang.IllegalArgumentException而不是應該返回null 。 這將導致DriverManager停止嘗試其他驅動程序，結果甚至從未嘗試使用PostgreSQL驅動程序。

可能的解決方案或解決方法是：

• 從Pentaho的類路徑中刪除MariaDB驅動程序
• 檢查是否有較新版本的MariaDB驅動程序已修復此錯誤
• 檢查是否有較舊版本的MariaDB驅動程序沒有此錯誤

快速搜索顯示此錯誤為CONJ-167 ，應在尚未發布的MariaDB Connector / J 1.2.2中修復。