Java SolrQuery.addHighlightField方法代碼示例

import org.apache.solr.client.solrj.SolrQuery; //導入方法依賴的package包/類
/**
 * Append highlighting parameters to {@link org.apache.solr.client.solrj.SolrQuery}
 *
 * @param solrQuery
 * @param query
 */
protected void processHighlightOptions(SolrQuery solrQuery, HighlightQuery query) {
	if (query.hasHighlightOptions()) {
		HighlightOptions highlightOptions = query.getHighlightOptions();
		solrQuery.setHighlight(true);
		if (!highlightOptions.hasFields()) {
			solrQuery.addHighlightField(HighlightOptions.ALL_FIELDS.getName());
		} else {
			for (Field field : highlightOptions.getFields()) {
				solrQuery.addHighlightField(field.getName());
			}
			for (FieldWithHighlightParameters fieldWithHighlightParameters : highlightOptions
					.getFieldsWithHighlightParameters()) {
				addPerFieldHighlightParameters(solrQuery, fieldWithHighlightParameters);
			}
		}
		for (HighlightParameter option : highlightOptions.getHighlightParameters()) {
			addOptionToSolrQuery(solrQuery, option);
		}
		if (highlightOptions.hasQuery()) {
			solrQuery.add(HighlightParams.Q, getQueryString(highlightOptions.getQuery()));
		}
	}
}
 

import org.apache.solr.client.solrj.SolrQuery; //導入方法依賴的package包/類
private SolrQuery prepareQuery(PatientSearch search, boolean highlight) {
	SolrQuery query = search.initQuery();
	query.addFilterQuery("domain:med");
	query.addSort("overall_stop", ORDER.desc);
	query.addField("qualified_name");
	query.addField("va_type");
	query.addField("last_filled");
	query.addField("last_give");
	query.addField(CLASS_FIELD);
	query.set(GroupParams.GROUP, true);
	query.set(GroupParams.GROUP_FIELD, "kind");
	query.add(GroupParams.GROUP_FIELD, "qualified_name");
	
	if (highlight) {
		query.setHighlight(true);
	    query.addHighlightField("administration_comment");
	    query.addHighlightField("prn_reason");
	    query.setHighlightFragsize(72);
	    query.setHighlightSnippets(5);
	}
	
	return query;
}
 

import org.apache.solr.client.solrj.SolrQuery; //導入方法依賴的package包/類
/**
     * 分頁查詢，包含查詢，分頁，高亮及獲取高亮處摘要等內容；不同於數據庫的查詢分頁，
     * solr的查詢返回值中有文檔總數，所以無需再次查詢總條數。
     *
     * @param solrServer, page 自定義的翻頁對象，包含查詢信息及當前頁數據列表。
     * @return List<FileModel>
     */
    public PageModel getSolrQuery(SolrServer solrServer, PageModel pageModel, Map filterQuery) {

        String type = (String) filterQuery.get("type");
        if(type == null || "".equals(type)) {
            type = "*";
        }

        String role = (String) filterQuery.get("role");
        if(role == null || "".equals(role)) {
            role = "anonymous";
        }

        SolrQuery query = new SolrQuery();

        // 獲取查詢參數
        String para = pageModel.getParameter();

//        System.out.println("para: " + para + ";  type: " + type);

        //TODO
        // 過濾文件與權限類型
//        query.setQuery("content_text:" + para);
        query.setQuery(para);
        query.setFilterQueries(
                "(" + getTypeFilter(type) + ")"
                        + "AND (" + getRoleFilter(role) + ")"
        );
        query.set("defType","edismax");
        query.set("qf","file_name^10 content_text^1");
//        query.addSort("upload_time", SolrQuery.ORDER.desc);
        query.setStart((int)pageModel.getStart());
        query.setRows(pageModel.getSize());

//        System.out.println(page.getStart() + "  " + page.getSize());

        //設置高亮
        query.setHighlight(true);// 開啟高亮組件
        query.addHighlightField("file_name");// 高亮字段
        query.addHighlightField("content_text");// 高亮字段
        query.setHighlightSimplePre("<hlt>");//標記，高亮關鍵字前綴
        query.setHighlightSimplePost("</hlt>");//後綴
        query.setHighlight(true).setHighlightSnippets(2); //獲取高亮分片數，一般搜索詞可能分布在文章中的不同位置，其所在一定長度的語句即為一個片段，默認為1，但根據業務需要有時候需要多取出幾個分片。 - 此處設置決定下文中titleList, contentList中元素的個數
        query.setHighlightFragsize(150);//每個分片的最大長度，默認為100。適當設置此值，如果太小，高亮的標題可能會顯不全；設置太大，摘要可能會太長。

        return getPageModel(solrServer, pageModel, query);
    }
 

import org.apache.solr.client.solrj.SolrQuery; //導入方法依賴的package包/類
@Override
public SearchResult search(String queryString, Integer page, Integer rows) throws Exception {

    SearchResult searchResult = new SearchResult();

    SolrQuery query = new SolrQuery();

    //設置查詢條件
    query.setQuery(queryString);

    //設置分頁
    query.setStart((page - 1) * rows);

    query.setRows(rows);

    //設置默認搜素域
    query.set("df", "item_keywords");

    query.setHighlight(true);

    query.addHighlightField("item_title");

    query.setHighlightSimplePre("<em style=\"color:red\">");

    query.setHighlightSimplePost("</em>");

    QueryResponse response = solrClient.query(query);

    SolrDocumentList results = response.getResults();

    searchResult.setRecordCount(results.getNumFound());

    List<SolrItem> solrItems = new ArrayList<SolrItem>();

    Map<String, Map<String, List<String>>> highlighting = response.getHighlighting();

    for (SolrDocument result : results) {

        SolrItem solrItem = new SolrItem();

        solrItem.setId((String) result.get("id"));

        List<String> strings = highlighting.get(result.get("id")).get("item_title");
        if (strings != null && strings.size() > 0) {
            solrItem.setTitle(strings.get(0));
        } else {
            solrItem.setTitle((String) result.get("item_title"));
        }
        solrItem.setCategory_name((String) result.get("item_category_name"));
        solrItem.setImage((String) result.get("item_image"));
        solrItem.setSell_point((String) result.get("item_sell_point"));
        solrItem.setItem_desc((String) result.get("item_desc"));
        solrItem.setPrice((Long) result.get("item_price"));

        solrItems.add(solrItem);

    }

    searchResult.setItemList(solrItems);
    searchResult.setCurPage(page);

    long recordCount = searchResult.getRecordCount();
    long pageCount = recordCount / rows;

    if (recordCount % rows > 0) {
        pageCount++;
    }

    searchResult.setPageCount(pageCount);

    return searchResult;

}