springboot I am try to upload the file using my spring boot API. The function is working fine when I am using small file (less than 1 MB), but when I upload large file it gives me an exception. I am using embedded Tomcat server.I am using spring boot 2.1.7

"Maximum upload size exceeded; nested exception is java.lang.IllegalStateException: org.apache.tomcat.util.http.fileupload.impl.FileSizeLimitExceededException: The field file exceeds its maximum permitted size of 1048576 bytes."

I have tried the following code in my files but every time I am getting the error

1. application.property

server.tomcat.max-swallow-size=100MB
server.tomcat.max-http-post-size=100MB
spring.servlet.multipart.enabled=true
spring.servlet.multipart.fileSizeThreshold=100MB
spring.servlet.multipart.max-file-size=100MB
spring.servlet.multipart.max-request-size=100MB

I have also tried

spring.servlet.multipart.maxFileSize=100MB
spring.servlet.multipart.maxRequestSize=100MB

2. The belove is my file uploading code

public RestDTO uploadFile(MultipartFile file, String subPath) {

    if (file.isEmpty()) {
        return new RestFailure("Failed to store empty file");
    }

    try {
        String fileName = new Date().getTime() + "_" + file.getOriginalFilename();
        String filePath = uploadPath + subPath + fileName;
        if (Objects.equals(file.getOriginalFilename(), "blob")) {
            filePath += ".png";
            fileName += ".png";
        }
        File uploadDir = new File(uploadPath + subPath);
        if (!uploadDir.exists()) {
            uploadDir.mkdirs();
        }
        FileOutputStream output = new FileOutputStream(filePath);
        output.write(file.getBytes());
        LOGGER.info("File path : " + filePath);

        MediaInfoDTO mediaInfoDTO = getThumbnailFromVideo(subPath, fileName);

        String convertedFileName = convertVideoToMP4(subPath, fileName);

        System.out.println("---------------->" + convertedFileName);

        return new RestData<>(new MediaDetailDTO(mediaInfoDTO.getMediaPath(), convertedFileName,
                mediaInfoDTO.getMediaType(), mediaInfoDTO.getMediaCodec(), mediaInfoDTO.getWidth(),
                mediaInfoDTO.getHeight(), mediaInfoDTO.getDuration()));
    } catch (IOException e) {
        LOGGER.info("Can't upload file: " + e.getMessage());
        return new RestFailure("Failed to store empty file");
    }
}

but every time I got the same exception.

Comment From: wilkinsona

The configuration properties that you have shared above work for me with Spring Boot 2.2.5. Setting the following is sufficient:

spring.servlet.multipart.max-file-size=100MB
spring.servlet.multipart.max-request-size=100MB

Note that these configuration properties will only take effect if you are using the auto-configured MultipartConfigElement bean. If you have defined your own, they will be ignored. If this doesn't help, please provide a complete sample that reproduces the problem in a zip attached to this issue or in a separate GitHub repository and we can take another look.

Comment From: wilkinsona

I see that you have also asked this on Stack Overflow. Given that I cannot reproduce the problem and to avoid any further duplication of effort, I'm going to close this issue in favour of your Stack Overflow question.