我下载了pentaho的社区版本以创建仪表板。 我的PC上有一个带有我的数据的Neo4j数据库。 当我尝试将报告连接到我的Neo4j数据库时，我遇到了一个无法解决的错误。
我在report-design / lib / jdbc文件中添加了我在市场上找到的Neo4j连接器
https://i.stack.imgur.com/MRVSN.jpg
我打开pentaho，我创建了一个新报告，并添加了一个类型为generic database的新JDBC连接，其中包含以下信息：
连接类型为通用数据库 自定义连接URL为jdbc：neo4j：// localhost：7474 自定义驱动程序类名称为org.neo4j.jdbc.Driver
https://i.stack.imgur.com/43lU3.jpg
Neo4j开启
当我点击测试时，我有以下错误：
Erreur lors de la connexion à la Base de données [Neo4j connection] : org.pentaho.di.core.exception.KettleDatabaseException:
Error occurred while trying to connect to the database
Error connecting to database: (using class org.neo4j.jdbc.Driver)
Internal Connector Error
org.pentaho.di.core.exception.KettleDatabaseException:
Error occurred while trying to connect to the database
Error connecting to database: (using class org.neo4j.jdbc.Driver)
Internal Connector Error
at org.pentaho.di.core.database.Database.normalConnect(Database.java:472)
at org.pentaho.di.core.database.Database.connect(Database.java:370)
at org.pentaho.di.core.database.Database.connect(Database.java:341)
at org.pentaho.di.core.database.Database.connect(Database.java:331)
at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:80)
at org.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2795)
at org.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:598)
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.swing.tags.SwingButton$OnClickRunnable.run(SwingButton.java:71)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(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.WaitDispatchSupport$2.run(Unknown Source)
at java.awt.WaitDispatchSupport$4.run(Unknown Source)
at java.awt.WaitDispatchSupport$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(Unknown Source)
at java.awt.Dialog.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at java.awt.Window.setVisible(Unknown Source)
at java.awt.Dialog.setVisible(Unknown Source)
at org.pentaho.ui.xul.swing.tags.SwingDialog.show(SwingDialog.java:250)
at org.pentaho.reporting.ui.datasources.jdbc.ui.XulDatabaseDialog.open(XulDatabaseDialog.java:254)
at org.pentaho.reporting.ui.datasources.jdbc.ui.ConnectionPanel$AddDataSourceAction.actionPerformed(ConnectionPanel.java:252)
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.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
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.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(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.WaitDispatchSupport$2.run(Unknown Source)
at java.awt.WaitDispatchSupport$4.run(Unknown Source)
at java.awt.WaitDispatchSupport$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(Unknown Source)
at java.awt.Dialog.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at java.awt.Window.setVisible(Unknown Source)
at java.awt.Dialog.setVisible(Unknown Source)
at org.pentaho.reporting.libraries.designtime.swing.CommonDialog.setVisible(CommonDialog.java:230)
at org.pentaho.reporting.libraries.designtime.swing.CommonDialog.performEdit(CommonDialog.java:158)
at org.pentaho.reporting.ui.datasources.jdbc.ui.JdbcDataSourceDialog.performConfiguration(JdbcDataSourceDialog.java:798)
at org.pentaho.reporting.ui.datasources.jdbc.JdbcDataSourcePlugin.performEdit(JdbcDataSourcePlugin.java:71)
at org.pentaho.reporting.designer.core.actions.report.AddDataFactoryAction.actionPerformed(AddDataFactoryAction.java:70)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$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 javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
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.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(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)
Caused by: org.pentaho.di.core.exception.KettleDatabaseException:
Error connecting to database: (using class org.neo4j.jdbc.Driver)
Internal Connector Error
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:587)
at org.pentaho.di.core.database.Database.normalConnect(Database.java:456)
... 125 more
Caused by: Internal Connector Error (1002) - The connector encountered an unexpected condition which prevented it from fulfilling the request
at org.restlet.resource.ClientResource.doError(ClientResource.java:612)
at org.restlet.resource.ClientResource.handleInbound(ClientResource.java:1202)
at org.restlet.resource.ClientResource.handle(ClientResource.java:1069)
at org.restlet.resource.ClientResource.handle(ClientResource.java:1044)
at org.restlet.resource.ClientResource.handle(ClientResource.java:950)
at org.restlet.resource.ClientResource.get(ClientResource.java:658)
at org.neo4j.jdbc.rest.Resources$DiscoveryClientResource.readInformation(Resources.java:131)
at org.neo4j.jdbc.rest.Resources.getDiscoveryResource(Resources.java:65)
at org.neo4j.jdbc.rest.Resources.getDiscoveryResource(Resources.java:60)
at org.neo4j.jdbc.Neo4jConnection.getDiscoveryResource(Neo4jConnection.java:80)
at org.neo4j.jdbc.Neo4jConnection.createExecutor(Neo4jConnection.java:69)
at org.neo4j.jdbc.Neo4jConnection.<init>(Neo4jConnection.java:61)
at org.neo4j.jdbc.Connections$4.doCreate(Connections.java:51)
at org.neo4j.jdbc.Connections.create(Connections.java:62)
at org.neo4j.jdbc.Driver.connect(Driver.java:64)
at org.neo4j.jdbc.Driver.connect(Driver.java:36)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:567)
... 126 more
Caused by: java.lang.NullPointerException
at org.restlet.ext.httpclient.internal.HttpMethodCall.sendRequest(HttpMethodCall.java:336)
at org.restlet.engine.adapter.ClientAdapter.commit(ClientAdapter.java:114)
at org.restlet.engine.adapter.HttpClientHelper.handle(HttpClientHelper.java:112)
at org.restlet.Client.handle(Client.java:180)
at org.restlet.resource.ClientResource.handle(ClientResource.java:1136)
at org.restlet.resource.ClientResource.retry(ClientResource.java:1610)
at org.restlet.resource.ClientResource.handle(ClientResource.java:1171)
at org.restlet.resource.ClientResource.retry(ClientResource.java:1610)
at org.restlet.resource.ClientResource.handle(ClientResource.java:1171)
at org.restlet.resource.ClientResource.handleOutbound(ClientResource.java:1225)
at org.restlet.resource.ClientResource.handle(ClientResource.java:1068)
... 142 more
URL personnalisée :jdbc:neo4j://localhost:7474
Classe pilote personnalisé :org.neo4j.jdbc.Driver
如果有人可以帮助我，我找不到解决方案，这将是美好的。谢谢!!!