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在lucene3.0中,，范圍查詢(xún)也有很大的變化,，RangeQuery已經(jīng)不推薦使用,，使用TermRangeQuery和NumericRangeQuery兩個(gè)替代。
TermRangeQuery：主要用于文本范圍查找;
IndexReader reader = IndexReader
.open(FSDirectory.open(INDEX_DIR), true); // only searching, Searcher searcher = new IndexSearcher(reader); String field = "starttime"; TermRangeQuery query = new TermRangeQuery(field, "2009年01月01日","2009年01月05日",true,true);
ScoreDoc[] hits = searcher.search(query, null, topnum).scoreDocs; NumericRangeQuery：要使用它，首先要使用NumericField 給數(shù)字建索引（當(dāng)然這個(gè)的term就是數(shù)字的了）,。如果你的term是文本,，那就是使用TermRangeQuery 。
英文原文:
public TermRangeQuery(String field,
String lowerTerm, String upperTerm, boolean includeLower, boolean includeUpper) Constructs a query selecting all terms greater/equal than lowerTerm but less/equal than upperTerm. If an endpoint is null, it is said to be "open". Either or both endpoints may be open. Open endpoints may not be exclusive (you can’t select all but the first or last term without explicitly specifying the term to exclude.) Parameters:
field – The field that holds both lower and upper terms. lowerTerm – The term text at the lower end of the range upperTerm – The term text at the upper end of the range includeLower – If true, the lowerTerm is included in the range. includeUpper – If true, the upperTerm is included in the range. |
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