mongodb or 查询

db.getCollection('gxyWarnEntity').find({ "schoolId" : "f11c8ea12f457dbc19c768a8bb6357f8", "batchId" : "594f724d6974c107bd702cc6ef39183a", "$or" : [{ "studentName" : { "$regex" : "小", "$options" : "" } }, { "teacherName" : { "$regex" : "小", "$options" : "" } }] })

java：

public List<GxyWarnEntity>  selectWarnPage(GxyWarnEntity  gxyWarnEntity){

        Criteria cri =Criteria.where("schoolId").is(gxyWarnEntity.getSchoolId());

        if(gxyWarnEntity.getBatchId()!=null) {
            cri.and("batchId").is(gxyWarnEntity.getBatchId());
        }
        if(gxyWarnEntity.getDepId()!=null){
            cri.and("depId").is(gxyWarnEntity.getDepId());
        }
        if(gxyWarnEntity.getWarningType()!=null){
            cri.and("warningType").is(gxyWarnEntity.getWarningType());
        }
        if(gxyWarnEntity.getStudentName()!=null){
            cri.orOperator(Criteria.where("studentName").regex(gxyWarnEntity.getStudentName()),
                    Criteria.where("teacherName").regex(gxyWarnEntity.getStudentName())
                    //,Criteria.where("classTeacherName").regex(gxyWarnEntity.getStudentName())
            );
        }

        Query query = new Query(cri);
        if (gxyWarnEntity.getCurrPage() != null && gxyWarnEntity.getPageSize() != null) {
            query.skip((gxyWarnEntity.getCurrPage()-1)*gxyWarnEntity.getPageSize())
                    .limit(gxyWarnEntity.getPageSize());
        }

        return template.find(query, GxyWarnEntity.class);
    }