Question

我正在使用java程序通过输入一个excel文件来创建neo4j图形数据库（.DB文件）。我可以用另一个excel文件更新这个.DB文件，但是一旦这个.DB文件在Neo4j中打开，之后我无法通过输入另一个excel文件来更新这个现有数据库，它显示异常。

Exception in thread "main" java.lang.RuntimeException: Error starting org.neo4j.kernel.EmbeddedGraphDatabase, D:\innoneuron\Transform\Feature1_Automatic_Tagging\Feature1_Automatic_Tagging\test.db
    at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:366)
    at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:59)
    at org.neo4j.graphdb.factory.GraphDatabaseFactory$1.newDatabase(GraphDatabaseFactory.java:91)
    at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:181)
    at org.neo4j.graphdb.factory.GraphDatabaseFactory.newEmbeddedDatabase(GraphDatabaseFactory.java:71)
    at feature3.AutomatedGraph.startDb(AutomatedGraph.java:88)
    at feature3.AutomatedGraph.main(AutomatedGraph.java:50)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager@5a4aa2f2' was successfully initialized, but failed to start. Please see attached cause exception.
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:513)
    at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:115)
    at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:343)
    ... 6 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource@f0f2775' was successfully initialized, but failed to start. Please see attached cause exception.
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:513)
    at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:115)
    at org.neo4j.kernel.impl.transaction.XaDataSourceManager.start(XaDataSourceManager.java:164)
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:507)
    ... 8 more
Caused by: org.neo4j.kernel.impl.storemigration.StoreUpgrader$UpgradingStoreVersionNotFoundException: 'neostore.nodestore.db' does not contain a store version, please ensure that the original database was shut down in a clean state.
    at org.neo4j.kernel.impl.storemigration.UpgradableDatabase.checkUpgradeable(UpgradableDatabase.java:78)
    at org.neo4j.kernel.impl.storemigration.StoreMigrator.needsMigration(StoreMigrator.java:135)
    at org.neo4j.kernel.impl.storemigration.StoreUpgrader.getParticipantsEagerToMigrate(StoreUpgrader.java:268)
    at org.neo4j.kernel.impl.storemigration.StoreUpgrader.migrateIfNeeded(StoreUpgrader.java:143)
    at org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource.start(NeoStoreXaDataSource.java:344)
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:507)
    ... 11 more

有没有办法用不同的输入excel更新这个.DB文件？提前致谢

Answer 1

根据例外的最初原因：

请确保原始数据库在干净状态下关闭

在导入第一个Excel文件时，您确定在创建结束时正确关闭了数据库吗？您需要在退出前致电GraphDatabaseService.shutdown()。

Answer 2

我在打开数据库后更新数据库时遇到的问题是由于安装的Neo4j数据库版本和在项目中使用的jar文件版本不同。对Neo4j版本使用相同的版本jar。感谢

使用java程序更新neo4j数据库

2 个答案: