Spring Boot mongoRepository查询

Question

I have this data [ { "id": "3", "name": "Lakshya2", "email": "lakshya.punhani2@gmail.com", "products": [ { "id": "2", "description": "qwerty", "rate": "20", "name": "AC" } ] }, { "id": "1", "name": "Lakshya", "email": "lakshya.punhani@gmail.com", "products": [ { "id": "3", "description": "qwerty", "rate": "20", "name": "AC" }, { "id": "2", "description": "desc", "rate": "10", "name": "BBG" } ] } ]

I am new to spring boot and mongo db as well so i just need to know how to get a particular product by user id and product id.

This is what I tried but its giving incorrect data

@Repository
public interface UserRepository extends MongoRepository<User, String>
{   
    Product findByproducts_productId(String productId);
}

Answer 1

I think you can use following query.

@Query(value = "{ 'users.id' : ?0, 'products.id' : ?1 }") List findByproductsByUserIdAndproductId(String userId, String productId);