Solr的基本语法

//高亮查询
    @Override
    public Map<String, Object> searchList(Map<String, Object> map) {
        System.out.println(map);
        //不写泛型返回的话，会出现IO异常
        Map<String,Object> map1 = new HashMap();

        //获取前端传递的当前页码和展示数量
        Integer pageNo = (Integer)map.get("pageNo");
        Integer pageSize = (Integer)map.get("pageSize");
        if (pageNo==null || pageNo<=0){
            pageNo=1;
        }
        pageNo = (pageNo-1)*pageSize;
        //高亮查询
        HighlightQuery query = new SimpleHighlightQuery();
        //起始索引，是当前页码-1*当前展示数量
        query.setOffset(pageNo);
        query.setRows(pageSize);
        //高亮属性的设置
        HighlightOptions options = new HighlightOptions();
        //设定属性名，属性名必须与solr字段名一致,
        options.addField("item_title");
        //高亮属性的设置前缀
        options.setSimplePrefix("<em style='color:red'>");
        //高亮属性的设置后缀
        options.setSimplePostfix("</em>");
        //设置高亮选项
        query.setHighlightOptions(options);

        //--------------获取前台传的关键字，进行空格消除
        String  keywords = (String)map.get("keywords");
        String s = keywords.replaceAll(" ", "");

        //查询条件的设置
        Criteria criteria = new Criteria("item_keywords").is(s);

        String spec =(String) map.get("category");
        List<Map> list = JSON.parseArray(spec, Map.class);
        //添加复杂查询
        query.addCriteria(criteria);
        //----------------过滤查询-----------------
        //根据分类进行查询
        String category = (String) map.get("category");
        if (!"".equals(category) && category!=null){
            Criteria criteria1 = new Criteria("item_category").is(category);
            FilterQuery query1 = new SimpleQuery(criteria);
            //放入查询对象中
            query.addFilterQuery(query1);
        }
        //根据品牌进行复杂查询
        String brand =(String) map.get("brand");
        if (brand!=null && !"".equals(brand)){
            Criteria criteria1 = new Criteria("item_brand").is(brand);
            FilterQuery  query1 = new SimpleQuery(criteria1);
            //放入查询对象中
            query.addFilterQuery(query1);
        }

        //价格区间查询
        String price = (String) map.get("price");
        if (!"".equals(price) && price!=null){
            String[] split = price.split("-");
            if (!"0".equals(split[0])) {
                //如果第一个不是0，就按照大于第一个数字价格去查询
                Criteria criteria1 = new Criteria("item_price").greaterThan(split[0]);
                FilterQuery query1 = new SimpleQuery(criteria1);
                query.addFilterQuery(query1);
            }
            if (!"*".equals(split[1])){
                //如果第二个数字不是* ，就按照小于第二个数字价格去查询
                Criteria criteria1 = new Criteria("item_price").lessThan(split[1]);
                FilterQuery query1 = new SimpleQuery(criteria1);
                query.addFilterQuery(query1);
            }
        }
        //排序查询
        String sortValue = (String)map.get("sort"); //price,updatetime
        String sortField = (String) map.get("sortField");//ASC,DESC
        if (sortValue!="" && sortValue.length()>0){
            if ("ASC".equals(sortValue)){
                //排序查询语句
                Sort sort = new Sort(Sort.Direction.ASC, "item_"+sortField);
                query.addSort(sort);
            }
            if ("DESC".equals(sortValue)){
                Sort sort = new Sort(Sort.Direction.DESC, "item_"+sortField);
                query.addSort(sort);
            }
        }
        //根据规格查询
        Map<String,String> spec1 = (Map<String,String>)map.get("spec");
        System.out.println(spec1);
        Set<Map.Entry<String, String>> entries = spec1.entrySet();
        for (Map.Entry<String, String> entry : entries) {
            Criteria criteria1 = new Criteria("item_spec_"+entry.getKey()).is(entry.getValue());
            FilterQuery query1 = new SimpleQuery(criteria1);
            query.addFilterQuery(query1);
        }
        HighlightPage<Item> page = solrTemplate.queryForHighlightPage(query, Item.class);
        //5、遍历实体集合,将符合要求的当西设置高亮
        //华为  mate  <em style='color:green'>华为mate</em>
        for (HighlightEntry<Item> h : page.getHighlighted()) {//循环高亮入口
            Item item = h.getEntity();//获取原实体
            //h.getHighlights()高亮的内容，
            if (h.getHighlights().size() >0  && h.getHighlights().get(0).getSnipplets().size()>0){
                //因为上面的复杂查询不能够直接去查询，我们要将符合要求的结果拿出来，在设置格式，再赋值给对象
                item.setTitle(h.getHighlights().get(0).getSnipplets().get(0));
            }
        }
        List<Item> content = page.getContent();
        //将list集合
        map1.put("total",page.getTotalElements());
        map1.put("totalPages",page.getTotalPages());
        //所有数据
        map1.put("rows",content);
        //------------------1高亮数据
        //------------------2分类数据
        List categiryList = searchCategoryList(map);
        //将分类数据放入map，传入前台
        map1.put("categoryList",categiryList);

        //-------------------3品牌数据
        if (categiryList.size()>0) {
            map1.putAll(searchBrandAndSpecList((String)categiryList.get(0)));
        }
        return map1;
    }