嘿，那里，所以我也跟着视频，发现这是问题

package com.example.demo.dao;

import com.example.demo.model.Person;
//import org.flywaydb.core.internal.jdbc.JdbcTemplate; <- this is the wrong import
import org.springframework.jdbc.core.JdbcTemplate; //<- use this import (on the second line when choosing to auto import)
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import java.util.List;
import java.util.Optional;
import java.util.UUID;

@Repository("postgres")
public class PersonDataAccessService implements PersonDao{

    private final JdbcTemplate jdbcTemplate;   //the import for this

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视频中的主要代码将顺利运行。

@Override
    public List<Object> selectAllPeople() {
        try {
            final String sql = "SELECT id, name FROM person";
            return jdbcTemplate.query(sql, (resultSet, i) -> {
                UUID id = UUID.fromString(resultSet.getString("id"));
                String name = resultSet.getString("name");
                return new Person(id, name);
            });
        } catch (Exception e) {
            // Handle the exception appropriately (e.g., logging, error message, etc.)
            throw new RuntimeException("Error occurred while retrieving people from the database", e);
        }
    }

型