0

为了存储图像，我使用 Spring Content JPA 策略。我的测试配置文件具有 HSQLDB 内存实现。有没有更方便的方法来用图像填充数据库？现在，我有一个解决方案来创建一个包含图像的文件夹，然后在启动时手动上传它们。据我了解，要摆脱图像文件夹，我可以将它们上传到 SQLite，然后从中获取数据，但也许有更好的方法？

CarrentalApplication

@SpringBootApplication
@EnableJpaRepositories
@EnableJpaStores
public class CarrentalApplication {
    private static final String IMAGE_FOLDER = "classpath:static/img/test-cars/";
    private final Map<Integer, String> cars = new HashMap<>() {{
        put(100010, "merc_benz");
        put(100011, "volvo_s60");
        put(100012, "suz_swift");
        put(100013, "volks16v");
        put(100014, "ford150");
        put(100015, "lambo610");
        put(100016, "bmvx5");
        put(100017, "audis6");
    }};

    public static void main(String[] args) {
        SpringApplication.run(CarrentalApplication.class, args);
    }

    @Bean
    public CommandLineRunner uploadImages(CarService carService, CarRepository carRepository,
                                          CarImageStore imageStore) {
        return (args) -> cars.forEach((carId, name) -> {
            try {
                Car car = carService.get(carId);
                File file = ResourceUtils.getFile(IMAGE_FOLDER + name + ".jpg");
                FileInputStream input = new FileInputStream(file);
                imageStore.setContent(car, input);
                carRepository.save(car);
            } catch (Exception e) {
                e.printStackTrace();
            }
        });
    }
}

汽车影像商店

@StoreRestResource(path = "data")
@Repository
public interface CarImageStore extends ContentStore<Car, String> {
}

汽车内容字段：

@ContentId
private String contentId;

@ContentLength
private Long contentLength = 0L;

@MimeType
private String mimeType = "text/plain";
4

1 回答 1

1

另一种方法是将图像移动到类路径中；即进入/src/test/resources（假设maven）并从那里加载它们：

imageStore.setContent(car, this.getClass().getResourceAsStream("/" + name + ".jpg"));
于 2020-11-14T07:32:15.987 回答