Question

我正在尝试使用蓝图实现打开neo4j数据库，但我有以下例外：

Neo4jGraph graph = new Neo4jGraph("/Users/pipe/Dev/neo4j-community-2.1.0-M01/data/graph.db");

这个原因

Caused by: javax.faces.el.EvaluationException: java.lang.RuntimeException: Bad value '-192M' for setting 'neostore.propertystore.db.strings.mapped_memory': value does not match expression:\d+[kmgKMG]?
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
... 32 more

Caused by: java.lang.RuntimeException: Bad value '-192M' for setting 'neostore.propertystore.db.strings.mapped_memory': value does not match expression:\d+[kmgKMG]?
at com.tinkerpop.blueprints.impls.neo4j.Neo4jGraph.<init>(Neo4jGraph.java:165)
at com.tinkerpop.blueprints.impls.neo4j.Neo4jGraph.<init>(Neo4jGraph.java:135)
at org.pipe.java.web.netnografica.persistenza.graphdb.DAONodo.toGraphml(DAONodo.java:204)
at org.pipe.java.web.netnografica.controllo.ControlloGenerale.esportaGraphml(ControlloGenerale.java:133)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.el.parser.AstValue.invoke(AstValue.java:278)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
... 33 more

Caused by: java.lang.IllegalArgumentException: Bad value '-192M' for setting 'neostore.propertystore.db.strings.mapped_memory': value does not match expression:\d+[kmgKMG]?
at org.neo4j.helpers.Settings$DefaultSetting.apply(Settings.java:782)
at org.neo4j.helpers.Settings$DefaultSetting.apply(Settings.java:702)
at org.neo4j.graphdb.factory.GraphDatabaseSetting$SettingWrapper.apply(GraphDatabaseSetting.java:215)
at org.neo4j.graphdb.factory.GraphDatabaseSetting$SettingWrapper.apply(GraphDatabaseSetting.java:189)
at org.neo4j.kernel.configuration.ConfigurationValidator.validate(ConfigurationValidator.java:50)
at org.neo4j.kernel.configuration.Config.applyChanges(Config.java:121)
at org.neo4j.kernel.InternalAbstractGraphDatabase.create(InternalAbstractGraphDatabase.java:339)
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:253)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:106)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:81)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:63)
at com.tinkerpop.blueprints.impls.neo4j.Neo4jGraph.<init>(Neo4jGraph.java:155)
... 44 more

似乎需要提供属性文件。是对的吗？

*编辑回答Michael Hunger：

嗯..我更改了蓝图的版本，现在是2.5.0-SNAPSHOT，但没有任何改变。所以我使用构造函数提问的地图提供了配置

Map<String, String> configurazione = new HashMap<String, String>();
configurazione.put("neostore.propertystore.db.strings.mapped_memory", "250M");
configurazione.put("neostore.propertystore.db.arrays.mapped_memory", "100M");
configurazione.put("neostore.relationshipstore.db.mapped_memory", "3845M");
configurazione.put("neostore.nodestore.db.mapped_memory", "350M");
configurazione.put("neostore.propertystore.db.mapped_memory", "350M");
configurazione.put("neostore.nodestore.db.mapped_memory", "769M");
Neo4j2Graph grafo = new Neo4j2Graph("/Users/pipe/Dev/neo4j-community-2.1.0-M01/data/graph.db", configurazione);

现在异常发生了变化，我真的不知道出了什么问题。我在paste bin中链接报告完整的堆栈。

http://pastebin.com/XpipSysp

最后抛出NoSuchMethodError。我错过了什么？非常感谢。

Answer 1

您使用的是哪个蓝图版本？蓝图2.5-SNAPSHOT与Neo4j 2.0.0兼容。

请注意，Neo4j 2.0有一个单独的模块，名为blueprints-neo4j2

这些课程称为Neo4j2Graph Neo4j2Vertex等。

您还应该能够为Neo4j2Graph提供配置。

无法使用蓝图导入neo4j数据库

1 个答案: