Possible pits in mongodb project

If you need to insert latitude and longitude , And use related functions , You need to create a location index

Can’t extract geo {$set:{ location: [ 13.42493130000003, 52.50074619999999 ]}}

May be lat and lon The position is reversed

Due to limitations of the com.mongodb.BasicDBObject, you can’t add a second

At the same time and and or

situation 1：
Query query=new Query();
query.addCriteria(new Criteria().andOperator(xxxx))
query.addCriteria(new Criteria().orOperator(xxxx))

Change it to
query.addCriteria(new Criteria().andOperator(xxxx).orOperator(xxxx))

situation 2：
query.addCriteria(Criteria.where(“paidTime”).gte(startTimeStamp))
query.addCriteria(Criteria.where(“paidTime”).lt(endTimeStamp))

Change it to ：
query.addCriteria(new Criteria().andOperator(
Criteria.where(“paidTime”).gte(startTimeStamp),
Criteria.where(“paidTime”).lt(endTimeStamp)
))
);
perhaps
query.addCriteria(new Criteria().andOperator(
Criteria.where(“paidTime”).gte(startTimeStamp).lt(endTimeStamp)
))
);

mongodb state should be: ClientSession from same MongoClient

mongoTemplate in Of MongoClient It should be the same

With a transaction Prompt when inserting data

Cannot create namespace xxx.xxx in multi-document transaction.
non-existent collection You need to create , Insert any data
Reference resources
https://www.cnblogs.com/flipped/p/12972409.html