商品搜索

Dao

業務邏輯
1、根據Query對象進行查詢
2、返回查詢結果，包括List、查詢結果的總記錄數

@Repository public class SearchDao {@Autowiredprivate SolrServer solrServer;public SearchResult search(SolrQuery query) throws Exception{//根據query對象進行查詢QueryResponse response = solrServer.query(query);//取查詢結果SolrDocumentList solrDocumentList = response.getResults();//取查詢結果總記錄數long numFound = solrDocumentList.getNumFound();SearchResult result = new SearchResult();result.setRecordCount(numFound);List<SearchItem> itemList = new ArrayList<>();//把查詢結果封裝到SearchItem對象中for (SolrDocument solrDocument : solrDocumentList) {SearchItem item = new SearchItem();item.setCategory_name((String) solrDocument.get("item_category_name"));item.setId((String) solrDocument.get("id"));//取一張圖片String image = (String) solrDocument.get("item_image");if (StringUtils.isNotBlank(image)) {image = image.split(",")[0];}item.setImage(image);item.setPrice((long) solrDocument.get("item_price"));item.setSell_point((String) solrDocument.get("item_sell_point"));//取高亮顯示Map<String, Map<String, List<String>>> highlighting = response.getHighlighting();List<String> list = highlighting.get(solrDocument.get("id")).get("item_title");String title = "";if (list != null && list.size() > 0) {title = list.get(0);} else {title = (String) solrDocument.get("item_title");}item.setTitle(title);//添加到商品列表itemList.add(item);}//把結果添加到SearchResult中result.setItemList(itemList);//返回return result;} }

Service

業務邏輯
1、創建一個SolrQuery對象
2、設置查詢條件
3、設置分頁條件
4、需要指定默認搜索域
5、設置高亮
6、執行查詢，調用SearchDao。得到SearchResult
7、需要計算總頁數
8、返回SearchResult

@Service public class SearchServiceImpl implements SearchService {@Autowiredprivate SearchDao searchDao;@Overridepublic SearchResult search(String queryString, int page, int rows) throws Exception {//根據查詢條件拼裝查詢對象//創建一個SolrQuery對象SolrQuery query = new SolrQuery();//設置查詢條件query.setQuery(queryString);//設置分頁條件if (page < 1) page =1;query.setStart((page - 1) * rows);if (rows < 1) rows = 10;query.setRows(rows);//設置默認搜索域query.set("df", "item_title");//設置高亮顯示query.setHighlight(true);query.addHighlightField("item_title");query.setHighlightSimplePre("<font color='red'>");query.setHighlightSimplePost("</font>");//調用dao執行查詢SearchResult searchResult = searchDao.search(query);//計算查詢結果的總頁數long recordCount = searchResult.getRecordCount();long pages = recordCount / rows;if (recordCount % rows > 0) {pages++;}searchResult.setTotalPages(pages);//返回結果return searchResult;} }

Controller

業務邏輯
1、接收參數
2、調用服務查詢商品列表
3、把查詢結果傳遞給頁面，需要參數回顯

@Controller public class SearchController {@Autowiredprivate SearchService searchService;@Value("${SEARCH_RESULT_ROWS}")private Integer SEARCH_RESULT_ROWS;@RequestMapping("/search")public String search(@RequestParam("q") String queryString, @RequestParam(defaultValue = "1") Integer page,Model model) throws Exception {// int a = 1/0;// 調用服務執行查詢// 把查詢條件進行轉碼，解決get亂碼問題queryString = new String(queryString.getBytes("iso8859-1"), "utf-8");SearchResult searchResult = searchService.search(queryString, page, SEARCH_RESULT_ROWS);// 把結果傳遞給頁面model.addAttribute("query", queryString);model.addAttribute("totalPages", searchResult.getTotalPages());model.addAttribute("itemList", searchResult.getItemList());model.addAttribute("page", page);// 返回邏輯視圖return "search";} }

如果，是Dubbo分布式服務
Service需要發布服務

<!-- 聲明需要暴露的服務接口 --> <dubbo:service interface="com.taotao.search.service.SearchService" ref="searchServiceImpl" timeout="300000"/>

Web引用服務

<!-- 引用dubbo服務 --> <dubbo:application name="taotao-search-web"/> <dubbo:registry protocol="zookeeper" address="192.168.25.167:2181"/> <dubbo:reference interface="com.taotao.search.service.SearchService" id="searchService" />

總結

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