java - 在aws Elastic beantalk中部署spring boot项目时，如何压缩spring boot中的MultipartFie []大小？

在此服务类中，我可以在哪里编写文件压缩代码，并将文件保存为“ Base64”格式在数据库中。单个文件在s3存储桶中上传，但是当我在aws s3存储桶中使用邮递员上传MultipartFile []时，出现“ 413 Request Entity Too Large”错误。如何解决此错误。

这是我的服务班

@Component
public class TeacherGalleryService {
    @Autowired
    TeacherGalleryRepository galleryRepo;

    private AmazonS3 amazonS3;

    @Value("${aws.access.key.id}")
    private String accessKey;

    @Value("${aws.access.key.secret}")
    private String secretKey;

    @Value("${aws.region}")
    private String region;

    @Value("${aws.s3.audio.bucket}")
    private String s3Bucket;

    @Value("${aws.endpointUrl}")
    private String endpointUrl;

    @SuppressWarnings("deprecation")
    @PostConstruct
    private void initializeAmazon() {
        System.out.println(accessKey);
        AWSCredentials credentials = new BasicAWSCredentials(this.accessKey, this.secretKey);
        this.amazonS3 = new AmazonS3Client(credentials);
    }

    public String uploadFile(MultipartFile file) {
        String fileUrl = "";
        try {
            File myFile = convertMultiPartToFile(file);
            String fileName = generateFileName(file);
            fileUrl = endpointUrl + "/" + s3Bucket + "/" + fileName;
            uploadFileTos3bucket(fileName, myFile);
            myFile.delete();
        } catch (Exception e) {
           e.printStackTrace();
        }
        return fileUrl;
    }

    private File convertMultiPartToFile(MultipartFile file) throws IOException {
        File convFile = new File(file.getOriginalFilename());
        FileOutputStream fos = new FileOutputStream(convFile);
        fos.write(file.getBytes());
        fos.close();
        return convFile;
    }

    private String generateFileName(MultipartFile multiPart) {
        return  multiPart.getOriginalFilename().replace(" ", "_");
    }

    private void uploadFileTos3bucket(String fileName, File file) {
        amazonS3.putObject(new PutObjectRequest(s3Bucket, fileName, file)
                .withCannedAcl(CannedAccessControlList.PublicRead));
    }

    public TeacherGallery storeFile(TeacherGallery teacherGallery, MultipartFile file) {
        String fileNames = StringUtils.cleanPath(file.getOriginalFilename());
        String fileUrls = endpointUrl + "/" + s3Bucket + "/" + fileNames;
        byte[] images = null;
        try {
            images = Base64.encodeBase64(file.getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        }
        teacherGallery = new TeacherGallery(images, fileNames, fileUrls, teacherGallery.getTitle());
        return galleryRepo.save(teacherGallery)
}
}

最佳答案

在Spring的servlet容器中配置的这个大小似乎很小。看一下Web properties for your Spring Boot：

您想研究这些属性

spring.servlet.multipart.max-file-size (default 1MB)
spring.servlet.multipart.max-request-size (default 10 MB)