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);
}