如何在Jersey jax-rs中接收2个二进制文件和JSON？

Question

I need to build a service that can receive 2 binary files (~100k each) and some metadata, preferably in json.

I found this , but it only seems to provide one InputStream to one of the parts. But I'd need two.. so what to do?

Answer 1

You have a few options

1. Simply add another parameter(s) with a different part annotation

    @POST @Consumes("multipart/form-data") public Response post(@FormDataParam("file1") InputStream file1, @FormDaraParam("file2") InputStream file2) { } 

2. The parts can have the same part name, so you could do

    @POST @Consumes("multipart/form-data") public Response post(@FormDataParam("file") List<FormDataBodyPart> files) { for (FormDataBodyPart file: files) { FormDataContentDisposition fdcd = file.getFormDataContentDisposition(); String fileName = fdcd = getFileName(); InputStream is = file.getValueAs(InputStream.class); } } 

3. You could traverse the entire multipart body youself

    @POST @Consumes("multipart/form-data") public Response post(FormDataMultiPart mulitPart) { Map<String, List<FormDataBodyPart>> fields = multiPart.getFields(); } 

See Also:

• Sending multiple files with Jersey: MessageBodyWriter not found for multipart/form-data , for a complete example
• File upload along with other object in Jersey restful web service , for how the handle the JSON as a POJO.