如何使用Springboot2.1和java 8编写sql原生请求？

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
</dependencies>

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;

public interface MyEntityRepository extends JpaRepository<MyEntity, Long> {
    
    @Query(value = "SELECT * FROM my_table WHERE column_name = ?1", nativeQuery = true)
    MyEntity findByColumnName(String columnName);
}

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

@Service
public class MyEntityService {
    
    private final MyEntityRepository myEntityRepository;

    @Autowired
    public MyEntityService(MyEntityRepository myEntityRepository) {
        this.myEntityRepository = myEntityRepository;
    }
    
    public MyEntity findByColumnName(String columnName) {
        return myEntityRepository.findByColumnName(columnName);
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/my-entity")
public class MyEntityController {
    
    private final MyEntityService myEntityService;

    @Autowired
    public MyEntityController(MyEntityService myEntityService) {
        this.myEntityService = myEntityService;
    }
    
    @GetMapping("/{columnName}")
    public MyEntity findByColumnName(@PathVariable String columnName) {
        return myEntityService.findByColumnName(columnName);
    }
}