springboot将前端上传的图片存入到数据库步骤
时间: 2024-05-07 09:23:57 浏览: 90
Step 1:首先需要创建一个包含图片内容的 POJO 类,如下:
```
public class Image {
private int id;
private String name;
private byte[] content;
// 其他属性和getter/setter方法
}
```
Step 2:创建一个用于上传图片的 Controller 类:
```
@RestController
@RequestMapping("/images")
public class ImageController {
@Autowired
private ImageService imageService;
@PostMapping
public void uploadImage(@RequestParam("file") MultipartFile file) throws IOException {
// 将MultipartFile转换为byte[]
byte[] content = file.getBytes();
String fileName = file.getOriginalFilename();
Image image = new Image();
image.setName(fileName);
image.setContent(content);
imageService.addImage(image);
}
}
```
Step 3:创建一个服务类来负责将图片保存到数据库中:
```
@Service
public class ImageService {
@Autowired
private ImageRepository imageRepository;
public void addImage(Image image) {
imageRepository.save(image);
}
}
```
Step 4:创建一个数据库访问接口以及实现类,如下:
```
public interface ImageRepository extends JpaRepository<Image, Integer> {
}
@Repository
public class ImageRepositoryImpl implements ImageRepository {
}
```
Step 5:在 application.properties 文件中添加数据库的配置信息:
```
spring.datasource.url=jdbc:mysql://localhost:3306/test
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
```
以上就是 Spring Boot 将前端上传的图片存入到数据库的完整步骤。
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