Liferay的檢索（待整理）

只檢索網頁內容的Indexer：

   Liferary大牛  冷月  指點的，在這裏表示一下感謝。

   Indexer indexer = IndexerRegistryUtil.getIndexer(JournalArticle.class);

用categoryID來進行檢索，不用setKeywords的方法：

    Indexer indexer = IndexerRegistryUtil.getIndexer(JournalArticle.class);

    BooleanQuery fullQuery = BooleanQueryFactoryUtil.create(searchContext);

    for (long assetCategoryId : searchContext.getCategoryIds()) {
        fullQuery.addTerm("assetCategoryIds", assetCategoryId);
    }
    BooleanClause booleanClause = BooleanClauseFactoryUtil.create(searchContext, fullQuery, BooleanClauseOccur.MUST.getName());

    searchContext.setBooleanClauses(new BooleanClause[] { booleanClause } );

    Hits hits = indexer.search(searchContext);