在lucene中加入mmseg分词器错误

本文解决了一个关于mmseg4j-1.8.2与Lucene-3.0.2结合使用时出现的AbstractMethodError错误。该问题源于Lucene版本不匹配导致的API不兼容。解决方案是将Lucene版本回退到2.9.3。

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mmseg4j-1.8.2

Lucene-3.0.2

出现如下错误:

 

Exception in thread "main" java.lang.AbstractMethodError: org.apache.lucene.analysis.TokenStream.incrementToken()Z

at org.apache.lucene.index.DocInverterPerField.processFields(DocInverterPerField.java:137)

at org.apache.lucene.index.DocFieldProcessorPerThread.processDocument(DocFieldProcessorPerThread.java:246)

at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:821)

at org.apache.lucene.index.DocumentsWriter.addDocument(DocumentsWriter.java:797)

at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1981)

at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1955)

at ict.ncic.Index.fileindexBuilder(Index.java:134)

at ict.ncic.Index.subindexBuilder(Index.java:70)

at ict.ncic.Index.indexBuilder(Index.java:53)

at ict.ncic.Index.main(Index.java:36)

lucene.org资料:
  • 2.9.3 is a bugfix release for the Lucene Java 2.x series, based on Java 1.4.
  • 3.0.2 has the same bug fix level but is for the Lucene Java 3.x series, based on Java 5.

New users of Lucene are advised to use version 3.0.2 for new developments, because it has a clean, type-safe API.

Solution:
使用Lucene2.9.3.
Ok.

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