搜索功能的实现

搜索功能的实现

效果图

模块划分

需要的我们自己写dao层mapper层

dao层存在我们搜索的结果

/**
 * 商品搜索dao
 */
@Repository
public class SearchDao {
    @Autowired
    private SolrServer solrServer;

    /**
     * 根据查询条件查询索引库
     * @param solrQuery
     * @return
     */
    public SearchResult search(SolrQuery solrQuery) throws SolrServerException {
        //根据solrQuery查询索引库
        QueryResponse query = solrServer.query(solrQuery);
        //取查询结果
        SolrDocumentList results = query.getResults();
        //取查询结果总记录数
        long numFound = results.getNumFound();
        //创建一个SearchResullt对象
        SearchResult searchResult=new SearchResult();
        searchResult.setRecordCount(numFound);
        //取商品列表，需要取高亮的显示
        Map<String, Map<String, List<String>>> highlighting = query.getHighlighting();
        //创建一个存储商品列表的集合
        List<SearchItem> itemList =new ArrayList<>();
        //遍历文档列表，从域中去内容取高亮中的需要的字段id必须要有
        for (SolrDocument document :results) {
            //创建一个SearchItem对象
            SearchItem searchItem=new SearchItem();
            //设置需要SearchItem对象的属性
            searchItem.setId((String) document.get("id"));
            searchItem.setCategory_name((String) document.get("item_category_name"));
            searchItem.setImage((String) document.get("item_image"));
            searchItem.setPrice((Long) document.get("item_price"));
            searchItem.setSell_point((String) document.get("item_sell_point"));
            //取高亮显示
            List<String> list = highlighting.get(document.get("id")).get("item_title");
            //创建一个title空字符串
            String title="";
            //判断title数据中是否有高度数据
            if (list !=null && list.size()>0){//有高亮数据
                title=list.get(0);
            }else {//没有高亮数据就取文档中的数据
                title= (String) document.get("item_title");
            }
            //将标题添加到searchItem对象中
            searchItem.setTitle(title);
            //添加到商品列表
            itemList.add(searchItem);
        }
        //添加商品列表到SearchResullt对象
        searchResult.setItemList(itemList);
        //返回结果
        return searchResult;
    }
}

Itemmapper.xml配置

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.e3mall.search.mapper.ItemMapper">
    <!--查询商品信息-->
    <select id="getItemList" resultType="com.e3mall.common.pojo.SearchItem">
      SELECT
        a.id,
        a.title,
        a.sell_point,
        a.price,
        a.image,
        b.name category_name
      FROM
         tb_item a
       LEFT JOIN tb_item_cat b
      on a.cid=b.id
       WHERE a.status=1;
    </select>
    <!--通过id查询SearchItem pojo中的属性数据-->
    <select id="getItemById" resultType="com.e3mall.common.pojo.SearchItem" parameterType="long">
      SELECT
        a.id,
        a.title,
        a.sell_point,
        a.price,
        a.image,
        b.name category_name
      FROM
         tb_item a
       LEFT JOIN tb_item_cat b
      on a.cid=b.id
       WHERE a.status=1 and a.id=#{itemId};
    </select>

</mapper>

依照我红色的字体写对应ItemMapper接口类即可附图依照

SearchItemServiceImpl.java

/**
 * 商品数据索引库Service
 */
@Service
public class SearchItemServiceImpl implements SearchItemService {
    @Autowired
    private ItemMapper itemMapper;
    @Autowired
    private SolrServer solrServer;
    /**
     * 将删商品数据导入索引库
     * @return
     */
    @Override
    public E3Result importItems() {
        try {
        //查询商品列表
        List<SearchItem> itemList = itemMapper.getItemList();
        //导入到索引库
        for (SearchItem item :itemList) {
            //创建文档对象
            SolrInputDocument document=new SolrInputDocument();
            //向文档添加域
            document.addField("id",item.getId());
            document.addField("item_title",item.getTitle());
            document.addField("item_sell_point",item.getSell_point());
            document.addField("item_price",item.getPrice());
            document.addField("item_image",item.getImage());
            document.addField("item_category_name",item.getCategory_name());
            //写入索引库
            solrServer.add(document);
        }
        //提交
        solrServer.commit();
        //返回成功
        return E3Result.ok();
        }catch (Exception e){
            e.printStackTrace();
            return E3Result.build(500,"商品导入失败！");
        }
    }
}

applicationContent-service.xml配置

代码

<dubbo:service interface="com.e3mall.search.service.SearchItemService" ref="searchItemServiceImpl" timeout="600000"/>

表现层

/**
 * 商品搜索Controller
 */
@Controller
public class SearchController {

    @Autowired
    private SearchService searchService;

    @Value("${SEACHER_RESULT_ROWS}")
    private Integer SEACHER_RESULT_ROWS;
    /**
     * 分页查询功能
     * @param keyword 查询添加
     * @param page 结果从第几条记录开始显示这里我们设置了默认值1
     * @param model
     * @return
     */
    @RequestMapping("/search")
    public  String search(String keyword, @RequestParam(defaultValue = "1") Integer page, Model model) throws Exception {
        keyword=new String(keyword.getBytes("ISO-8859-1"),"utf-8");
        //调用服务查询商品列表
        SearchResult result = searchService.search(keyword, page, SEACHER_RESULT_ROWS);
        //把结果传递给页面
        model.addAttribute("query",keyword);
        model.addAttribute("totalPages",result.getTotalPages());
        model.addAttribute("page",page);
        model.addAttribute("recourdCount",result.getRecordCount());
        model.addAttribute("itemList",result.getItemList());
        //返回逻辑页面
        return "search";
    }
}

springmvc.xml引入服务

<!-- 引用dubbo服务 -->
<dubbo:application name="e3-manager-web"/>
<dubbo:registry protocol="zookeeper" address="192.168.25.128:2181"/>
<!--调用搜索服务-->
<dubbo:reference interface="com.e3mall.search.service.SearchService" id="searchService" />

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