Spring MVC文件上传返回-415不支持的媒体类型

Question

I'm writing a web service to upload a image/video file to the server. Every time I call my upload web service from postman, it return 415 Unsupported Media Type . Here is what I have done.

In my controller:

@POST
@Path("/upload")
@Produces(MediaType.MULTIPART_FORM_DATA)
public Response upload(@RequestParam("file") MultipartFile files) {
    Response.ResponseBuilder rb;

    rb = Response.status(Response.Status.OK);
    rb.entity(new ResponseWrapper<String>(SUCCESS, ""));
    return rb.build();
}

application context:

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <property name="maxUploadSize" value="10000000"/>
</bean>

I have already added commons-fileupload-1.2.2.jar & mimepull.jar

When I call the web service I get the following console log.

    com.sun.jersey.spi.container.ContainerRequest getEntity
SEVERE: A message body reader for Java class org.springframework.web.multipart.MultipartFile, and Java type interface org.springframework.web.multipart.MultipartFile, and MIME media type multipart/form-data; boundary=--------------------------410903058421289672087091 was not found.
The registered message body readers compatible with the MIME media type are:
multipart/* ->
  com.sun.jersey.multipart.impl.MultiPartReaderServerSide
*/* ->
  com.sun.jersey.core.impl.provider.entity.FormProvider
  com.sun.jersey.core.impl.provider.entity.StringProvider
  com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
  com.sun.jersey.core.impl.provider.entity.FileProvider
  com.sun.jersey.core.impl.provider.entity.InputStreamProvider
  com.sun.jersey.core.impl.provider.entity.DataSourceProvider
  com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General
  com.sun.jersey.core.impl.provider.entity.ReaderProvider
  com.sun.jersey.core.impl.provider.entity.DocumentProvider
  com.sun.jersey.core.impl.provider.entity.SourceProvider$StreamSourceReader
  com.sun.jersey.core.impl.provider.entity.SourceProvider$SAXSourceReader
  com.sun.jersey.core.impl.provider.entity.SourceProvider$DOMSourceReader
  com.sun.jersey.json.impl.provider.entity.JSONJAXBElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONArrayProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONObjectProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLRootObjectProvider$General
  com.sun.jersey.core.impl.provider.entity.EntityHolderReader
  com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONListElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JacksonProviderProxy

I've tried many things digging the internet, still dosnt'e work. Help is appreciated.

Answer 1

try setting the content type using the following format

rb.type(MediaType.TEXT_PLAIN)

change the media type accordingly to your needs. text_plain as provided in the example above should be setting text/plain

Answer 2

There are two changes in suggest:

1. Change @produces to @consumes as this api is accepting the file which is multipart/form-data .
2. Change @RequestParam to @RequestPart