hi,
I want to get a download stream in the form application / octet-stream or application / octet-stream;charset=UTF-8.

On the Mediator server, called the API server to spring-cloud-open-feign.
But I can't get the binary file.

How do I get a binary file with @FeignClient?

--------------------------- Mediator server call ------------------------------

@FeignClient(contextId = "file", name = Const.API_GATEWAY_NAME, url = Const.API_GATEWAY_URL, configuration = FeignConfig.class)
@RequestMapping("file")
public interface FileClient {

@RequestMapping(value = "/download")
public byte[] download() throws Exception;

}
--------------------------- Resource(API) Server download ------------------

public ResponseEntity<ByteArrayResource> download(FileDownload download) throws Exception {

	Path path = Paths.get(download.getFilePath());
	byte[] data = Files.readAllBytes(path);
	ByteArrayResource resource = new ByteArrayResource(data);
	return ResponseEntity.ok()
			.header(HttpHeaders.CONTENT_DISPOSITION,
					"attachment;filename="
							.concat(URLEncoder.encode(download.getOrgFileName(), BaseConst.DEFAULT_CHARSET_UTF_8)))
			.contentType(download.getContentType()).contentLength(data.length).body(resource);

}

--------------- JDK1.8 ------------------

	  <dependency>
	    <groupId>io.github.openfeign.form</groupId>
	    <artifactId>feign-form</artifactId>
	    <version>3.5.0</version>
	  </dependency>
	<dependency>
        <groupId>io.github.openfeign.form</groupId>
        <artifactId>feign-form-spring</artifactId>
        <version>3.5.0</version>
    </dependency>