Pylucene 7.6.0 demo 查询

最新推荐文章于 2022-03-02 17:35:26 发布

RotundJere

最新推荐文章于 2022-03-02 17:35:26 发布

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文章标签： python pylucene lucene web database

本文链接：https://blog.youkuaiyun.com/RotundJere/article/details/90261814

本文将展示如何使用Pylucene 7.6.0进行搜索查询操作。通过实例代码，详细解析了Pylucene在Python中的应用，包括其与Lucene库的结合，以及在web和database数据检索中的关键步骤。

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Pylucene 7.6.0 demo 查询

import sys
import lucene
from java.io import File
from java.nio.file import Paths
from org.apache.lucene.analysis.miscellaneous import LimitTokenCountAnalyzer
from org.apache.lucene.analysis.core import WhitespaceAnalyzer
from org.apache.lucene.analysis.standard import StandardAnalyzer
from org.apache.lucene.document import Document, Field, FieldType,TextField
from org.apache.lucene.index import FieldInfo, IndexWriter, IndexWriterConfig,IndexReader,DirectoryReader
from org.apache.lucene.store import SimpleFSDirectory
from org.apache.lucene.util import Version
from org.apache.lucene.analysis.cjk import CJKAnalyzer
from org.apache.lucene.search import IndexSearcher
from org.apache.lucene.queryparser.classic import QueryParser
"""
PyLucene retriver simple example
"""

INDEXDIR = "indexs"
def init():
    lucene.initVM()

init()
indir = Paths.get(INDEXDIR)
indir = SimpleFSDirectory(indir)
indir = DirectoryReader.open(indir)
lucene_analyzer= CJKAnalyzer()
lucene_searcher= IndexSearcher(indir)

def Query(query):
    my_query= QueryParser(query,lucene_analyzer).parse(query)
    MAX= 1000
    total_hits =lucene_searcher.search(my_query,MAX)
    return process(lucene_searcher,total_hits)
    #print("Hits: ",total_hits.totalHits)
    #for hit in total_hits.scoreDocs:
    #    print("Hit Score: ",hit.score, "Hit Doc:",hit.doc, "HitString:",hit.toString())
    #    doc= lucene_searcher.doc(hit.doc)
    #    print(doc.get("text"))

def process(searcher,hits):
    return {hit.doc:searcher.doc(hit.doc).get("text") for hit in hits.scoreDocs}


if __name__ == '__main__':
    l = Query("text:哈哈")
    print(l)