安装FR之后，选择数据库查询，为何连接那个自带的数据库连不上呢？
严重:Cannot create PoolableConnectionFactory ( 未发现数据源名称并且未指定默认驱动程序)
at com.fr.third.org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549)
at com.fr.third.org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)
at com.fr.third.org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
at com.fr.data.pool.MemoryConnection.create(Unknown Source)
at com.fr.data.impl.JDBCDatabaseConnection.createConnection(Unknown Source)
at com.fr.data.impl.JDBCDatabaseConnection.testConnection(Unknown Source)
at com.fr.data.impl.NameDatabaseConnection.testConnection(Unknown Source)
at com.fr.base.dav.LocalEnv.testConnection(Unknown Source)
at com.fr.data.preview.PreviewTablePane.previewTableDataSQL(Unknown Source)
at com.fr.data.preview.PreviewTablePane.populate(Unknown Source)
at com.fr.data.preview.PreviewTablePane.previewTableData(Unknown Source)
at com.fr.data.preview.PreviewTablePane.previewTableData(Unknown Source)
at com.fr.data.tabledata.gui.DBTableDataPane$PreviewAction$1.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.Dialog$1.run(Unknown Source)
at java.awt.Dialog$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Unknown Source)
at javax.swing.JOptionPane.showOptionDialog(Unknown Source)
at javax.swing.JOptionPane.showConfirmDialog(Unknown Source)
at javax.swing.JOptionPane.showConfirmDialog(Unknown Source)
at com.fr.data.tabledata.gui.DBTableDataPane.checkParameter(Unknown Source)
at com.fr.data.tabledata.gui.DBTableDataPane.access$100(Unknown Source)
at com.fr.data.tabledata.gui.DBTableDataPane$3.focusLost(Unknown Source)
at java.awt.AWTEventMulticaster.focusLost(Unknown Source)
at java.awt.Component.processFocusEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.Dialog$1.run(Unknown Source)
at java.awt.Dialog$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at java.awt.Window.setVisible(Unknown Source)
at java.awt.Dialog.setVisible(Unknown Source)
at com.fr.data.gui.TableDataTreePane.dgEdit(Unknown Source)
at com.fr.data.gui.TableDataTreePane$TDAction.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at de.muntjak.tinylookandfeel.TinyMenuItemUI.doClick(TinyMenuItemUI.java:534)
at de.muntjak.tinylookandfeel.TinyMenuItemUI$MouseInputHandler.mouseReleased(TinyMenuItemUI.java:421)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source
)6313
