MultiFieldQueryParser

最新推荐文章于 2025-01-16 11:15:00 发布

原创最新推荐文章于 2025-01-16 11:15:00 发布 · 689 阅读

0 ·

CC 4.0 BY-SA版权

Lucene 专栏收录该内容

2 篇文章

订阅专栏

本文介绍了Lucene中多字段查询解析的方法，通过指定不同字段的查询字符串、搜索字段及布尔标志来构造复杂的查询条件。例如，可以设置某些字段为必须包含（and），某些字段为禁止包含（not），以及其他字段为可选包含（or）。这种方式适用于需要对多个字段进行精确控制的场景。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

摘自lucene官网

public static Query parse(String[] queries,
          String[] fields,
          BooleanClause.Occur[] flags,
          Analyzer analyzer)
                   throws ParseException

Parses a query, searching on the fields specified. Use this if you need to specify certain fields as required, and others as prohibited.

Usage:

String[] query ={"query1","query2","query3"};String[] fields ={"filename","contents","description"};BooleanClause.Occur[] flags ={BooleanClause.Occur.SHOULD,BooleanClause.Occur.MUST,BooleanClause.Occur.MUST_NOT};MultiFieldQueryParser.parse(query, fields, flags, analyzer);

The code above would construct a query:

 
 (filename:query1) +(contents:query2) -(description:query3)

Parameters:

queries - Queries string to parse

fields - Fields to search on

flags - Flags describing the fields

analyzer - Analyzer to use

Throws:

ParseException - if query parsing fails

IllegalArgumentException - if the length of the queries, fields, and flags array differ

/**

* BooleanClause.Occur.MUST表示and

* BooleanClause.Occur.MUST_NOT表示not

* BooleanClause.Occur.SHOULD表示or