mongoTemplate简单用法(增删改查)
分页时查找数量:
public long countSample(String id) { Query query = new Query(); if (StringUtil.hasText(id)) query.addCriteria(Criteria.where("creator").is(id)); return mongoTemplate.count(query, Sample.class); }
分页:
public List<Sample> searchAllSample(String id, PageTag page) { Query query = new Query(); query.with(new Sort(new Sort.Order(Sort.Direction.DESC, "update_date"))); int skip = (page.getCurrentPage() - 1) * page.getPageSize(); if (StringUtil.hasText(id)) { Criteria criteria = Criteria.where("creator").is(id); query.addCriteria(criteria); } query.skip(skip);// 从那条记录开始 query.limit(page.getPageSize());// 取多少条记录 return mongoTemplate.find(query, Sample.class); }
修改数量:
public void modifyHitNumByNo(String no) { Query query = new Query(); query.addCriteria(Criteria.where("sap_no").is(no)); Update update = new Update(); update.inc("hit_num", 1); mongoTemplate.updateFirst(query, update, Project.class); }
模糊查询:
public List<Sample> findSamples(String memberId, SelectVo selectVo) { Criteria criteria = Criteria.where("creator").is(memberId); if (StringUtil.hasText(selectVo.getName())) { Pattern pattern = Pattern.compile("^.*" + selectVo.getName() + ".*$", Pattern.CASE_INSENSITIVE); criteria.orOperator(Criteria.where("projectNo").regex(pattern), Criteria.where("name").regex(pattern)); } return findPageList(Query.query(criteria), Sample.class, new PageTag(selectVo.getPage(), selectVo.getPageSize())); }
一般查询:
public List<Project> getProjects(String creator) { Query query = new Query(); if (StringUtil.hasText(creator)) { Criteria criteria = Criteria.where("creator").is(creator); query.addCriteria(criteria); } return mongoTemplate.find(query, Project.class); }
public Experiment getExperimentByExpNo(String expNo) { Query query = new Query(); Criteria criteria = Criteria.where("exp_no").is(expNo); query.addCriteria(criteria); return mongoTemplate.findOne(query, Experiment.class); }
public void saveOrUpdateExperiment(Experiment experiment) { if (StringUtil.hasText(experiment.getExpNo())) { Query query = new Query(); Criteria criteria = Criteria.where("exp_no").is(experiment.getExpNo()); query.addCriteria(criteria); Experiment exp = mongoTemplate.findAndRemove(query, Experiment.class); experiment.setCreator(exp.getCreator()); experiment.setCreateDate(exp.getCreateDate()); } mongoTemplate.save(experiment); }