MongoTemplate 全面的 增删改查及复杂查询操作

这是借鉴其他博客非常全面的一张表：

附带Criteria方法：

1、查询

1.1、按条件查询列表和统计

	//统计数量
	public Integer count(Bean domin) {
        Query query = getCondition(domin);
        return (int)template.count(query, Bean.class, Bean.COLLECTION);
    }

	//查找列表
    public List<Bean> getBeanList(Bean domin) {
        Query query = getCondition(domin);
        query = query.with(Sort.by(Sort.Direction.DESC, "updateDate"))
        			 .skip((domin.getPageNo() - 1) * domin.getPageSize())
        			 .limit(domin.getPageSize());
        List<Bean> beans = template.find(query, Bean.class, Bean.COLLECTION);
        if (CollectionUtils.isEmpty(beans)) {
            return Collections.emptyList();
        }
        beans.stream().forEach(v -> {
        	//处理列表信息
            buildBean(v);
        });

        return beans;
    }


	/** 编辑各种查询条件 */
    private Query getCondition(Bean domin) {
        Query query = new Query();
        //普通查询
       if (StringUtils.isNotBlank(domin.getCusId())) {
            query.addCriteria(Criteria.where("cusId").is(domin.getCusId()));
        }
        
       	//模糊查询
        if (StringUtils.isNotBlank(domin.getCusName())) {
        	String str = "^.*"+domin.getCusName()+".*$";
            Pattern pattern= Pattern.compile(str, Pattern.CASE_INSENSITIVE);
            query.addCriteria(Criteria.where("cusName").regex(pattern));
        }

	    //in 判断元素是否在指定的集合范围里
	    if (StringUtils.isNotBlank(domin.getPayProgress())) {          						
	        query.addCriteria(Criteria.where("payProgress").in(1,2,3));
	    }
		//时间判断查询
        if (domin.getBeginTime() != null && domin.getEndTime() != null) {
            query.addCriteria(Criteria.where("updateDate").gte(new Date(domin.getBeginTime()))
            											  .lte(new Date(domin.getEndTime())));
        }
        if (domin.getBeginTime() != null && domin.getEndTime() == null) {
            query.addCriteria(Criteria.where("updateDate").gte(new Date(domin.getBeginTime())));
        }
        if (domin.getBeginTime() == null && domin.getEndTime() != null) {
            query.addCriteria(Criteria.where("updateDate").lte(new Date(domin.getEndTime())));
        }
        return query;
    }
    

1.2、根据条件查找单个对象

Query query = Query.query(Criteria.where("userName").is(bean.getUserName())
        .and("curriculum").is(bean.getCurriculum())
        .addCriteria(Criteria.where("payProgress").lt(5))
        .with(Sort.by(Sort.Direction.DESC, "updateDate")).skip(0).limit(1);
Bean bean = template.findOne(query, Bean.class, Bean.COLLECTION);

1.3、根据条件 Distinct 去重

Query query = new Query();
if(!CollectionUtils.isEmpty(advisers)){
    query = new Query(Criteria.where("code").in(codes));
}
List<String> result = template.findDistinct(query,"curriculum",Bean.COLLECTION,String.class);

1.4、or查询

Criteria criteria = new Criteria();
criteria.orOperator(Criteria.where("cusId").is('123'),Criteria.where("payProgress").is(3));
Query query =  Query.query(criteria);
List<Bean> beans = template.find(query, Bean.class, Bean.COLLECTION);

1.5、查询指定字段或排除某个字段

Query query = new Query();
query.addCriteria(Criteria.where("id").is('1234'));
query.fields().include("cusName");//包含该字段
query.fields().exclude("cusId");//不包含该字段
query.fields().include("updateDate");
query.addCriteria(Criteria.where("updateDate").gte(beginTime).lte(endTime));
List<Bean> list = mongoTemplate.find(query, Bean.class, Bean.COLLECTION);

2、新增

返回值为新增后的对象

Bean bean = new Bean();
bean.setCusId("1245");
bean.setUpdateDate(new Date());
Bean rs = template.insert(bean, Bean.COLLECTION);

3、删除

 Query query = Query.query(Criteria.where("cusId").is("123"));
 template.remove(query,EduPaymentProgressBean.COLLECTION);

4、修改

Query query = Query.query(Criteria.where("cusId").is(1234).and("payProgress").lt(5));
      
Update update = Update.update("updateDate", new Date()).set("payProgress", 3);
//updateFirst 更新查询会返回结果集的第一条
template.updateFirst(query, update, Bean.COLLECTION);
//修改多条符合条件的
template.updateMulti(query, update, Bean.class);

Bean对象:

@Data
@Document(collection = Bean.COLLECTION)
public class Bean implements Serializable {

    public static final String COLLECTION = "mongoDb_table_name";
    private String id;
    private String cusId;
    private String cusName;
    private Integer payProgress;
	private Date updateDate;
    // 页码
    private Integer pageNo = 1;
    // 每页数量
    private Integer pageSize = 10;
    private Long beginTime;
    private Long endTime;
}