Spring-MVC: Solution to upload a file.

Hi,

I finally found the solution of issue #1273..

You need to had this dependency in the pom.xml file:

<dependency>
   <groupId>commons-fileupload</groupId>
   <artifactId>commons-fileupload</artifactId>
   <version>1.3.1</version> <!--Latest version-->
</dependency>

And in SwaggerConfig.java, you need to had this Bean:

@Bean
public CommonsMultipartResolver multipartResolver(){
    CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
    multipartResolver.setDefaultEncoding("UTF-8");
    multipartResolver.setMaxUploadSize(-1);
    return multipartResolver;
}

Don't forget to add:

import org.springframework.context.annotation.Bean;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

Can you make a PR request?? Thanks

Start by locating the relevant Spring MVC module, its pom.xml, and SwaggerConfig.java, then read issue #1273 for the original upload failure. Compare the proposed Commons FileUpload dependency and multipart resolver configuration with the generated project structure; done means the affected Spring MVC file-upload case is supported and the relevant checks pass.