Lucene在多个索引上进行搜索

代码如下

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package comlucenesearch;

import orgapacheluceneanalysisstandardStandardAnalyzer;

import orgapachelucenedocumentDocument;

import orgapachelucenedocumentField;

import orgapacheluceneindexIndexWriter;

import orgapachelucenequeryParserMultiFieldQueryParser;

import orgapachelucenesearchBooleanClause;

import orgapachelucenesearchHits;

import orgapachelucenesearchIndexSearcher;

import orgapachelucenesearchMultiSearcher;

import orgapachelucenesearchQuery;

public class Multisearcher {

private static String INDEX_STORE_PATH = C:\\multi\\;

private static String INDEX_STORE_PATH = C:\\multi\\;

public static void main(String[] args) throws Exception {

Multisearchermultisearcher();

}

public static void multisearcher() throws Exception {

IndexWriter writer = new IndexWriter(INDEX_STORE_PATH new StandardAnalyzer() true);

writersetUseCompoundFile(false);

Document doc = new Document();

Field f = new Field(bookname 钢铁是怎样炼成的 FieldStoreYES FieldIndexTOKENIZED);

Field f = new Field(price FieldStoreYES FieldIndexUN_TOKENIZED);

docadd(f);

docadd(f);

Document doc = new Document();

Field f = new Field(bookname 钢铁战士 FieldStoreYES FieldIndexTOKENIZED);

Field f = new Field(price FieldStoreYES FieldIndexUN_TOKENIZED);

docadd(f);

docadd(f);

Document doc = new Document();

Field f = new Field(bookname 钢和铁是两种不同的元素 FieldStoreYES FieldIndexTOKENIZED);

Field f = new Field(price FieldStoreYES FieldIndexUN_TOKENIZED);

docadd(f);

docadd(f);

writeraddDocument(doc);

writeraddDocument(doc);

writeraddDocument(doc);

writerclose();

//创建第二个索引器

IndexWriter writer = new IndexWriter(INDEX_STORE_PATH new StandardAnalyzer() true);

writersetUseCompoundFile(false);

Document doc = new Document();

Field f = new Field(bookname 钢要比铁有更多的元素 FieldStoreYES FieldIndexTOKENIZED);

Field f = new Field(price FieldStoreYES FieldIndexUN_TOKENIZED);

docadd(f);

docadd(f);

Document doc = new Document();

Field f = new Field(bookname 钢和铁是两种重要的金属 FieldStoreYES FieldIndexTOKENIZED);

Field f = new Field(price FieldStoreYES FieldIndexUN_TOKENIZED);

docadd(f);

docadd(f);

Document doc = new Document();

Field f = new Field(bookname 钢铁是两种重要的金属 FieldStoreYES FieldIndexTOKENIZED);

Field f = new Field(price FieldStoreYES FieldIndexUN_TOKENIZED);

docadd(f);

docadd(f);

writeraddDocument(doc);

writeraddDocument(doc);

writeraddDocument(doc);

writerclose();

String query = 钢;

String query = [ TO ];//注意格式中括号还有关键字TO是大写的

String[] queries = { query query };

//指定两个域Field

String field = bookname;

String field = price;

String[] fields = { field field };

//指定查询字句之间的关系

BooleanClauseOccur[] clauses = { BooleanClauseOccurMUST BooleanClauseOccurMUST };

//转成多域查询MultiFieldQuery

Query q = MultiFieldQueryParserparse(queries fields clauses new StandardAnalyzer());

//打印Query的内容

Systemoutprintln(qtoString());

//创建两个IndexSearcher以实现在多个索引目录进行查询

IndexSearcher searcher = new IndexSearcher(INDEX_STORE_PATH);

IndexSearcher searcher = new IndexSearcher(INDEX_STORE_PATH);

IndexSearcher[] searchers = { searcher searcher };

//使用MultiSearcher进行多域搜索

MultiSearcher searcher = new MultiSearcher(searchers);

Hits hits = searchersearch(q);

for (int i = ; i < hitslength(); i++) {

Systemoutprintln(hitsdoc(i));

}

}

}

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