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在Spring Boot中,可以通过以下步骤实现图片上传:
- 添加Maven依赖:在pom.xml文件中添加以下依赖:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency>
- 创建一个Controller用于处理图片上传请求:
@RestController public class ImageUploadController { @Value("${upload-dir}") private String uploadDir; @PostMapping("/upload") public ResponseEntity<String> uploadImage(@RequestParam("image") MultipartFile image) { File file = new File(uploadDir + "/" + image.getOriginalFilename()); try { image.transferTo(file); return ResponseEntity.ok("Image uploaded successfully"); } catch (IOException e) { return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("Failed to upload image"); } } }
- 配置文件上传目录:在application.properties或application.yml文件中配置文件上传的目录:
upload-dir=/path/to/upload/directory
- 创建一个HTML页面用于上传图片:
<!DOCTYPE html> <html> <head> <title>Image Upload</title> </head> <body> <h1>Upload Image</h1> <form action="/upload" method="post" enctype="multipart/form-data"> <input type="file" name="image"> <button type="submit">Upload</button> </form> </body> </html>
通过以上步骤,就可以实现在Spring Boot应用中上传图片的功能。在上传图片之前,确保文件上传目录的权限设置正确,并且确保文件上传目录存在。