lucene 多欄位 多索引搜尋與多執行緒搜尋

1、多欄位搜尋

1）term t1=new term("title","會議");

termquery q1=new termquery(t1);

term t2=new term("context","交通部");

termquery q2=new termquery(t2);

booleanquery q=new booleanquery();

q.add(q1,booleanclause.occur.should);

q.add(q2,booleanclause.occur.should);

2)string fileds=["title","context"];

string keys=["會議","交通部"]

multifieldqueryparser mp=new multifieldqueryparser(fields,new standardanalyzer());

query q=mp.parse(keys);

還例如：

string query = ;

string fields = ;

booleanclause.occur flags = ;

multifieldqueryparser.parse(query, fields, flags, analyzer);

the code above would construct a query:

(filename:query1) +(contents:query2) -(description:query3)

2、多索引

indexsearcher searcher1=new indexsearcher("index1");

indexsearcher searcher2=new indexsearcher("index2");

indexsearcher searchers=;

multisearcher searcher=new multisearcher(searchers);

3、多執行緒

indexsearcher searcher1=new indexsearcher("index1");

indexsearcher searcher2=new indexsearcher("index2");

indexsearcher searchers=;

parallelmultisearcher searcher=new parallelmultisearcher(searchers);

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