lunece搜索

我有一个对象Info 里面有id,title,state,content几个属性，现在我要查询content包含keyword关键字，而且state='2' or state='3'的Info 对象，例如这个语句"from Info where content like '%keyword%' and (state='2' or state='3')" 查询,请问该如何写，下面是我写的代码，不太对。


public List searchFiles(boolean flag,String keyword) {
// hitsList用来保存db的纪录，这些纪录可以通过查询结果取到
List hitsList = new ArrayList();
try {
IndexReader reader = IndexReader.open("E:/lunece/");
Searcher searcher = new IndexSearcher(reader);
Analyzer analyzer = new StandardAnalyzer();
//查询分析器
String querys[]={"2","3"};
String fields[]={"state","state"};
BooleanClause.Occur[] flags = {
BooleanClause.Occur.SHOULD,
BooleanClause.Occur.SHOULD};
MultiFieldQueryParser squery = new MultiFieldQueryParser(fields, analyzer);
Query query2 = squery.parse(querys, fields, flags, analyzer);
QueryParser parser = null;
if(flag){
parser = new QueryParser("title", analyzer);
}else{
parser = new QueryParser("content", analyzer);
}
// 解析查询关键字，比如输入的是以空格等分开的多个查询关键字，这里解析后，可以多条件查询
Query query = parser.parse(keyword);
BooleanQuery bquerymain = new BooleanQuery();
bquerymain.add(query, BooleanClause.Occur.MUST);
bquerymain.add(query2, BooleanClause.Occur.MUST);
// hits用来保存查询结果，这里的hits相当于sql中的result
Hits hits = searcher.search(bquerymain);
InfoDAO dao = new InfoDAO();
for (int i = 0; i < hits.length(); i++) {
Document doc = hits.doc(i);
// 获得article表的主健
String id = doc.get("id");
// 根据主健去db中取纪录，返回到hitsList中
Info obj = dao.get(id);
hitsList.add(obj);
}
searcher.close();
reader.close();
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (CorruptIndexException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} 
catch (ParseException e) {
e.printStackTrace();
} 
catch (NotExistedException e) {
e.printStackTrace();
}
for(Iterator itor=hitsList.iterator();itor.hasNext();){
Info obj = (Info)itor.next();
log.info("检索结果:"+obj.getId().longValue()+":"+obj.getTitle());
}
return hitsList;
}