How to get the object id of the document in a mongodb collection during mongotemplate.save operation is executed?

Question

Using MongoTemplate, I have saved a json in a collection. The objectid is generated automatically by MongoDB, I suppose.

How to get the objectid at the instant while saving?

mongotemplate.save(data,"collection");

Answer 1

如果我理解你正确你可以这样做，如果对象“数据”有字段“id”

mongotemplate.save(data,"collection").getId();