public class NewsHelpService {@Resourceprivate MongoTemplate mongoTemplate;//addpublic void insert(NewsHelp newsHelp) {mongoTemplate.insert(newsHelp);}//selectpublic Pagination<NewsHelp> findNewsHelpAll(String type, String title, String id, Integer pageNo,Integer pageSize) {//        QueryPage page = QueryPage.build(pageNo, pageSize);MandoAssert.notNull(type, "类型不能为空");Criteria criteria = Criteria.where("type").is(type);if (title!=null) {Pattern pattern = Pattern.compile(title, Pattern.CASE_INSENSITIVE); //模糊查询criteria.andOperator(Criteria.where("title").regex(pattern));}if (id!=null) {criteria.andOperator(Criteria.where("id").is(id));}Query query = BasicQuery.query(criteria);long total = mongoTemplate.count(query, NewsHelp.class);Pagination<NewsHelp> newsHelps = new Pagination<NewsHelp>(pageNo, pageSize);int skip = (pageNo-1)*pageSize;if (pageSize<1) {query.skip(skip);// skip相当于从那条记录开始query.limit(pageSize);// 从skip开始,取多少条记录
        }List<NewsHelp> datas = mongoTemplate.find(query, NewsHelp.class);newsHelps.setData(datas);//获取数据
        newsHelps.setTotal((int)total);return newsHelps;}//selectOnepublic NewsHelp findNewsHelp(String id) {Query query = BasicQuery.query(Criteria.where("id").is(id));NewsHelp newsHelp = mongoTemplate.findOne(query, NewsHelp.class);return newsHelp;}// update 新闻类public void updateNewsHelp(NewsHelp help) { MandoAssert.notNull(help.getId(), "ID不能为空");Update update = new Update();if(null!=help.getTops()){update.set("tops", help.getTops());}if(StringUtils.isNotEmpty(help.getTitle())){update.set("title", help.getTitle());}if(StringUtils.isNotEmpty(help.getContent())){update.set("content", help.getContent());}update.set("modifyDate", new Date());mongoTemplate.updateMulti(Query.query(Criteria.where("id").is(help.getId())),update,NewsHelp.class);}//deletepublic void delNewsHelp(List<String> ids) {ids.stream().forEach(id -> {Query query = BasicQuery.query(Criteria.where("id").is(id));mongoTemplate.findAndRemove(query, NewsHelp.class);});}}