Lucene - 短语中的通配符

问题描述

我目前正在尝试使用 Lucene 搜索填充在索引中的数据.

I am currently attempting to use Lucene to search data populated in an index.

我可以通过将其括在括号中来匹配确切的短语(即处理文档")，但无法让 Lucene 通过执行任何类型的处理文档*"来找到该短语.

I can match on exact phrases by enclosing it in brackets (i.e. "Processing Documents"), but cannot get Lucene to find that phrase by doing any sort of "Processing Document*".

明显的区别是末尾的通配符.

The obvious difference being the wildcard at the end.

我目前正在尝试使用 Luke 来查看和搜索索引.(解析时会去掉短语末尾的星号)

I am currently attempting to use Luke to view and search the index. (it drops the asterisk at the end of the phrase when parsing)

在数据周围添加引号似乎是主要的罪魁祸首，因为搜索 document* 会起作用，但 "document*" 不起作用

Adding the quotes around the data seems to be the main culprit as searching for document* will work, but "document*" does not

任何帮助将不胜感激

推荐答案

QueryParser 不仅不支持词组中的通配符，而且 PhraseQuery 本身只支持词组.MultiPhraseQuery 更近了，但正如其摘要所说，您仍然需要自己枚举 IndexReader.terms 以匹配通配符.

Not only does the QueryParser not support wildcards in phrases, PhraseQuery itself only supports Terms. MultiPhraseQuery comes closer, but as its summary says, you still need to enumerate the IndexReader.terms yourself to match the wildcard.

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