| package src;import java.io.StringReader;import java.util.Date;import org.apache.lucene.analysis.Analyzer;import org.apache.lucene.analysis.SimpleAnalyzer;import org.apache.lucene.analysis.TokenStream;import org.apache.lucene.analysis.cjk.CJKAnalyzer;import org.apache.lucene.analysis.cn.ChineseAnalyzer;import org.apache.lucene.analysis.standard.StandardAnalyzer;import org.apache.lucene.document.DateField;import org.apache.lucene.document.DateTools;import org.apache.lucene.document.Document;import org.apache.lucene.document.Field;import org.apache.lucene.index.IndexReader;import org.apache.lucene.index.Term;import org.apache.lucene.queryParser.MultiFieldQueryParser;import org.apache.lucene.queryParser.QueryParser;import org.apache.lucene.search.BooleanClause;import org.apache.lucene.search.BooleanQuery;import org.apache.lucene.search.FuzzyQuery;import org.apache.lucene.search.Hits;import org.apache.lucene.search.IndexSearcher;import org.apache.lucene.search.Query;import org.apache.lucene.search.QueryFilter;import org.apache.lucene.search.RangeQuery;import org.apache.lucene.search.Sort;import org.apache.lucene.search.SortField;import java.util.Date;import org.apache.lucene.analysis.standard.StandardAnalyzer;import org.apache.lucene.document.Document;import org.apache.lucene.index.IndexReader;import org.apache.lucene.queryParser.QueryParser;import org.apache.lucene.search.Hits;import org.apache.lucene.search.IndexSearcher;import org.apache.lucene.search.Query;import org.apache.lucene.search.highlight.Highlighter;import org.apache.lucene.search.highlight.QueryScorer;import org.apache.lucene.search.highlight.SimpleFragmenter;import org.apache.lucene.search.highlight.SimpleHTMLFormatter;public class LuceneSearch { public static void main(String[] args) throws Exception{ LuceneSearch test = new LuceneSearch(); // Hits h = null; h = test.search("显示 "); test.printResult(h); h = test.search("jy"); test.printResult(h); h = test.search("djy"); test.printResult(h); h = test.search("料不"); test.printResult(h); h = test.search("人"); test.printResult(h); } public LuceneSearch(){ try{ searcher = new IndexSearcher(IndexReader.open("E:\\lucene\\test4\\index")); }catch(Exception e){ e.printStackTrace(); } } //声明一个IndexSearcher对象 private IndexSearcher searcher = null; //声明一个Query对象 private Query query = null; ChineseAnalyzer analyzer = new ChineseAnalyzer(); Highlighter highlighter = null; public final Hits search(String keyword){ System.out.println("正在检索关键字:"+keyword); try{ Date start = new Date(); /***** 一个关键字，对一个字段进行查询 *****/ QueryParser qp = new QueryParser("content",analyzer); query = qp.parse(keyword);// Hits hits = searcher.search(query); /***** 模糊查询 *****/// Term term = new Term("content",keyword);// FuzzyQuery fq = new FuzzyQuery(term);// Hits hits = searcher.search(fq); /***** 一个关键字，在两个字段中查询 *****/ /* * 1.BooleanClause.Occur[]的三种类型： * MUST : + and * MUST_NOT : - not * SHOULD : or * 2.下面查询的意思是：content中必须包含该关键字，而title有没有都无所谓 * 3.下面的这个查询中，Occur[]的长度必须和Fields[]的长度一致。每个限制条件对应一个字段 */// BooleanClause.Occur[] flags = new BooleanClause.Occur[]{BooleanClause.Occur.SHOULD,BooleanClause.Occur.MUST};// query=MultiFieldQueryParser.parse(keyword,new String[]{"title","content"},flags,analyzer); /***** 两个(多个)关键字对两个(多个)字段进行查询,默认匹配规则 *****/ /* * 1.关键字的个数必须和字段的个数相等 * 2.由于没有指定匹配规定，默认为"SHOULD" * 因此，下面查询的意思是："title"中含有keyword1 或 "content"含有keyword2. * 在此例中，把keyword1和keyword2相同 */// query=MultiFieldQueryParser.parse(new String[]{keyword,keyword},new String[]{"title","content"},analyzer); /***** 两个(多个)关键字对两个(多个)字段进行查询,手工指定匹配规则 *****/ /* * 1.必须 关键字的个数 == 字段名的个数 == 匹配规则的个数 * 2.下面查询的意思是："title"必须不含有keyword1,并且"content"中必须含有keyword2 */// BooleanClause.Occur[] flags = new BooleanClause.Occur[]{BooleanClause.Occur.MUST_NOT,BooleanClause.Occur.MUST};// query=MultiFieldQueryParser.parse(new String[]{keyword,keyword},new String[]{"title","content"},flags,analyzer); /***** 对日期型字段进行查询 *****/ /***** 对数字范围进行查询 *****/ /* * 1.两个条件必须是同一个字段 * 2.前面一个条件必须比后面一个条件小，否则找不到数据 * 3.new RangeQuery中的第三个参数，表示是否包含"=" * true: >= 或 <= * false: > 或 < * 4.找出 55>=id>=53 or 60>=id>=57: */// Term lowerTerm1 = new Term("id","53");// Term upperTerm1 = new Term("id","55");// RangeQuery rq1 = new RangeQuery(lowerTerm1,upperTerm1,true);// // Term lowerTerm2 = new Term("id","57");// Term upperTerm2 = new Term("id","60");// RangeQuery rq2 = new RangeQuery(lowerTerm2,upperTerm2,true);// // BooleanQuery bq = new BooleanQuery();// bq.add(rq1,BooleanClause.Occur.SHOULD);// bq.add(rq2,BooleanClause.Occur.SHOULD); // Hits hits = searcher.search(bq); /***** 排序 *****/ /* * 1.被排序的字段必须被索引过(Indexecd)，在索引时不能 用 Field.Index.TOK |
