我已将Neo4j 3.0.1嵌入到Java 8应用程序中,但我一直在遇到SPI问题。嵌入式Neo4j SPI类(lucene PostingsFormat)错误
从内部的IntelliJ产生正确的结果如预期,但只要我打造神器的JAR,运行它,并尝试写入Neo4j的运行,我得到以下异常:
Caused by: org.neo4j.kernel.impl.store.UnderlyingStorageException: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'BlockTreeOrds' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [Lucene50]
at org.neo4j.kernel.impl.transaction.command.LabelUpdateWork.apply(LabelUpdateWork.java:62)
at org.neo4j.kernel.impl.transaction.command.LabelUpdateWork.apply(LabelUpdateWork.java:33)
at org.neo4j.concurrent.WorkSync.doSynchronizedWork(WorkSync.java:121)
at org.neo4j.concurrent.WorkSync.apply(WorkSync.java:90)
at org.neo4j.kernel.impl.transaction.command.IndexBatchTransactionApplier.close(IndexBatchTransactionApplier.java:105)
at org.neo4j.kernel.impl.api.BatchTransactionApplierFacade.close(BatchTransactionApplierFacade.java:70)
at org.neo4j.kernel.impl.storageengine.impl.recordstorage.RecordStorageEngine.apply(RecordStorageEngine.java:336)
at org.neo4j.kernel.impl.api.TransactionRepresentationCommitProcess.applyToStore(TransactionRepresentationCommitProcess.java:78)
... 25 more
有似乎不会出现异常,所以我假设某些依赖关系没有用Maven构建解决。
我在pom.xml
文件中的以下内容:
<dependency>
<groupId>com.sparkjava</groupId>
<artifactId>spark-core</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j</artifactId>
<version>3.0.1</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.21</version>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-codecs</artifactId>
<version>5.5.0</version>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-slf4j</artifactId>
<version>3.0.0-M02</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>com.github.jknack</groupId>
<artifactId>handlebars</artifactId>
<version>4.0.5</version>
</dependency>
<dependency>
<groupId>com.opencsv</groupId>
<artifactId>opencsv</artifactId>
<version>3.7</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
请问该如何解决这个问题?
UPDATE:
我已经重新创建了这个问题,有一个非常简单的空白项目,源可以在这里找到,如果你想在你的最终运行:https://github.com/SeanNieuwoudt/neo4j-spi
不幸的是,问题仍然存在 – SeanNieuwoudt
也许增加'lucene-core' jar? –
同样的事情,我认为它与Maven包装有关。我已经创建了一个干净的演示项目,并且如果您想要查看,请使用链接更新该问题。问题很容易重现。 – SeanNieuwoudt