我是 Lucene 的新手。我想在 Python 3 中编写 PyLucene 6.5 的示例代码。我更改了该版本的示例代码。但是,我可以找到很少的文件,我不确定更改是否正确。
# indexer.py
import sys
import lucene
from java.io import File
from org.apache.lucene.analysis.standard import StandardAnalyzer
from org.apache.lucene.document import Document, Field, StringField, FieldType
from org.apache.lucene.index import IndexWriter, IndexWriterConfig
from org.apache.lucene.store import SimpleFSDirectory, FSDirectory
from org.apache.lucene.util import Version
if __name__ == "__main__":
lucene.initVM()
indexPath = File("index/").toPath()
indexDir = FSDirectory.open(indexPath)
writerConfig = IndexWriterConfig(StandardAnalyzer())
writer = IndexWriter(indexDir, writerConfig)
print("%d docs in index" % writer.numDocs())
print("Reading lines from sys.stdin...")
tft = FieldType()
tft.setStored(True)
tft.setTokenized(True)
for n, l in enumerate(sys.stdin):
doc = Document()
doc.add(Field("text", l, tft))
writer.addDocument(doc)
print("Indexed %d lines from stdin (%d docs in index)" % (n, writer.numDocs()))
print("Closing index of %d docs..." % writer.numDocs())
writer.close()
此代码读取输入并存储在index
目录中。
# retriever.py
import sys
import lucene
from java.io import File
from org.apache.lucene.analysis.standard import StandardAnalyzer
from org.apache.lucene.document import Document, Field
from org.apache.lucene.search import IndexSearcher
from org.apache.lucene.index import IndexReader, DirectoryReader
from org.apache.lucene.queryparser.classic import QueryParser
from org.apache.lucene.store import SimpleFSDirectory, FSDirectory
from org.apache.lucene.util import Version
if __name__ == "__main__":
lucene.initVM()
analyzer = StandardAnalyzer()
indexPath = File("index/").toPath()
indexDir = FSDirectory.open(indexPath)
reader = DirectoryReader.open(indexDir)
searcher = IndexSearcher(reader)
query = QueryParser("text", analyzer).parse("hello")
MAX = 1000
hits = searcher.search(query, MAX)
print("Found %d document(s) that matched query '%s':" % (hits.totalHits, query))
for hit in hits.scoreDocs:
print(hit.score, hit.doc, hit.toString())
doc = searcher.doc(hit.doc)
print(doc.get("text").encode("utf-8"))
我们应该能够检索(搜索),retriever.py
但它不返回任何内容。它出什么问题了?