搜索解决方案-Solr整合spring代码示例

关键字搜索

public class ItemSearchServiceImpl implements ItemSearchService{
    @Autowired
    private SolrTemplate solrTemplate;

    @Override
    public Map<String, Object> search(Map searchMap) {
Map<String,Object> map=new HashMap<>();
        Query query=new SimpleQuery();
        //添加查询条件
        Criteria criteria=new Criteria("item_keywords").is(searchMap.get("keywords"));
        query.addCriteria(criteria);
        ScoredPage<TbItem> page = solrTemplate.queryForPage(query, TbItem.class);
        map.put("rows", page.getContent());
        return map;
    }
}

高亮显示
将用户输入的关键字在标题中以红色的字体显示出来，就是搜索中常用的高亮显示.

/**
     * 根据关键字搜索列表
     * @param keywords
     * @return
     */
    private Map searchList(Map searchMap){
        Map map=new HashMap();
        HighlightQuery query=new SimpleHighlightQuery();
        HighlightOptions highlightOptions=new HighlightOptions().addField("item_title");//设置高亮的域
        highlightOptions.setSimplePrefix("<em style='color:red'>");//高亮前缀 
        highlightOptions.setSimplePostfix("</em>");//高亮后缀
        query.setHighlightOptions(highlightOptions);//设置高亮选项
        //按照关键字查询
        Criteria criteria=new Criteria("item_keywords").is(searchMap.get("keywords"));
        query.addCriteria(criteria);
        HighlightPage<TbItem> page = solrTemplate.queryForHighlightPage(query, TbItem.class);
        for(HighlightEntry<TbItem> h: page.getHighlighted()){//循环高亮入口集合
            TbItem item = h.getEntity();//获取原实体类            
            if(h.getHighlights().size()>0 && h.getHighlights().get(0).getSnipplets().size()>0){
                item.setTitle(h.getHighlights().get(0).getSnipplets().get(0));//设置高亮的结果
            }           
        }       
        map.put("rows",page.getContent());
        return map;
    }

查询分类列表

/**
     * 查询分类列表  
     * @param searchMap
     * @return
     */
    private  List searchCategoryList(Map searchMap){
        List<String> list=new ArrayList();  
        Query query=new SimpleQuery();      
        //按照关键字查询
        Criteria criteria=new Criteria("item_keywords").is(searchMap.get("keywords"));
        query.addCriteria(criteria);
        //设置分组选项
        GroupOptions groupOptions=new GroupOptions().addGroupByField("item_category");
        query.setGroupOptions(groupOptions);
        //得到分组页
        GroupPage<TbItem> page = solrTemplate.queryForGroupPage(query, TbItem.class);
        //根据列得到分组结果集
        GroupResult<TbItem> groupResult = page.getGroupResult("item_category");
        //得到分组结果入口页
        Page<GroupEntry<TbItem>> groupEntries = groupResult.getGroupEntries();
        //得到分组入口集合
        List<GroupEntry<TbItem>> content = groupEntries.getContent();
        for(GroupEntry<TbItem> entry:content){
            list.add(entry.getGroupValue());//将分组结果的名称封装到返回值中   
        }
        return list;
    }

查询品牌和规格列表

@Autowired
    private RedisTemplate redisTemplate;

    /**
     * 查询品牌和规格列表
     * @param category 分类名称
     * @return
     */
    private Map searchBrandAndSpecList(String category){
        Map map=new HashMap();      
        Long typeId = (Long) redisTemplate.boundHashOps("itemCat").get(category);//获取模板ID
        if(typeId!=null){
            //根据模板ID查询品牌列表 
            List brandList = (List) redisTemplate.boundHashOps("brandList").get(typeId);
            map.put("brandList", brandList);//返回值添加品牌列表
            //根据模板ID查询规格列表
            List specList = (List) redisTemplate.boundHashOps("specList").get(typeId);
            map.put("specList", specList);              
        }           
        return map;
    }

过滤查询

if(!"".equals(searchMap.get("category"))){          
            Criteria filterCriteria=new Criteria("item_category").is(searchMap.get("category"));
            FilterQuery filterQuery=new SimpleFilterQuery(filterCriteria);
            query.addFilterQuery(filterQuery);
        }

if(!"".equals(searchMap.get("brand"))){         
            Criteria filterCriteria=new Criteria("item_brand").is(searchMap.get("brand"));
            FilterQuery filterQuery=new SimpleFilterQuery(filterCriteria);
            query.addFilterQuery(filterQuery);
        }
if(searchMap.get("spec")!=null){
                Map<String,String> specMap= (Map) searchMap.get("spec");
                for(String key:specMap.keySet() ){
    Criteria filterCriteria=new Criteria("item_spec_"+key).is( specMap.get(key) );
                    FilterQuery filterQuery=new SimpleFilterQuery(filterCriteria);
                    query.addFilterQuery(filterQuery);              
                }           
        }

排序

/**
     * 根据关键字搜索列表
     * @param keywords
     * @return
     */
    private Map searchList(Map searchMap){
        ........
        //1.7排序
        String sortValue= (String) searchMap.get("sort");//ASC  DESC  
        String sortField= (String) searchMap.get("sortField");//排序字段
        if(sortValue!=null && !sortValue.equals("")){  
            if(sortValue.equals("ASC")){
                Sort sort=new Sort(Sort.Direction.ASC, "item_"+sortField);
                query.addSort(sort);
            }
            if(sortValue.equals("DESC")){       
                Sort sort=new Sort(Sort.Direction.DESC, "item_"+sortField);
                query.addSort(sort);
            }           
        }
        //高亮显示处理
        ......
        return map;
    }

按价格区间筛选

//1.5按价格筛选.....
        if(!"".equals(searchMap.get("price"))){
            String[] price = ((String) searchMap.get("price")).split("-");
            if(!price[0].equals("0")){//如果区间起点不等于0
                Criteria filterCriteria=new Criteria("item_price").greaterThanEqual(price[0]);
                FilterQuery filterQuery=new SimpleFilterQuery(filterCriteria);
                query.addFilterQuery(filterQuery);              
            }       
            if(!price[1].equals("*")){//如果区间终点不等于*
                Criteria filterCriteria=new  Criteria("item_price").lessThanEqual(price[1]);
                FilterQuery filterQuery=new SimpleFilterQuery(filterCriteria);
                query.addFilterQuery(filterQuery);              
            }
        }       

添加索引商品：

    @Override
    public void importList(List list) {
        solrTemplate.saveBeans(list);   
        solrTemplate.commit();
    }

删除索引商品：

    @Override
    public void deleteByGoodsIds(List goodsIdList) {
        System.out.println("删除商品ID"+goodsIdList);
        Query query=new SimpleQuery();      
        Criteria criteria=new Criteria("item_goodsid").in(goodsIdList);
        query.addCriteria(criteria);
        solrTemplate.delete(query);
        solrTemplate.commit();
    }