如何在已有的mongodb集合中使用springboot获取数据

spring.data.mongodb.host=127.0.0.1
spring.data.mongodb.port=27017
spring.data.mongodb.database=mydb
spring.data.mongodb.username=myuser
spring.data.mongodb.password=mypassword

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

@Document(collection = "mycollection")
public class MyEntity {
    @Id
    private String id;
    private String name;
    // 其他字段及对应的getter和setter方法
}

import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface MyEntityRepository extends MongoRepository<MyEntity, String> {
    List<MyEntity> findByName(String name);
    // 其他查询方法
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class MyService {
    @Autowired
    private MyEntityRepository repository;

    public List<MyEntity> getEntitiesByName(String name) {
        return repository.findByName(name);
    }
}