将内容发送到Jersey Rest端点时出现错误415（不受支持的媒体类型）

Question

I have a Java Jersey class on the backend of my project which has the goal to consume a MULTIPART_FORM_DATA sent from an ajax frontend. When I send the data, I receive a 415 (Unsupported Media Type), even though the content type is formatted as:

content-type: multipart/form-data;

My backend method is configured as follow:

@POST @Consumes(MediaType.MULTIPART_FORM_DATA) @Path("/fileupload") enter code here public Response uploadFile( @FormDataParam("file") FormDataContentDisposition cdh,@FormDataParam("file") InputStream fileStream) { System.out.println("hello there"); Payment newPayment = new Payment(); return Response.ok().entity(newPayment).build(); } public Response uploadFile( @FormDataParam("file") FormDataContentDisposition cdh,@FormDataParam("file") InputStream fileStream) { System.out.println("hello there"); Payment newPayment = new Payment(); return Response.ok().entity(newPayment).build(); }

Ajax code is configured as follow: $.ajax({ url: '/path/api/fileupload', type: "POST", data: formData, processData: false, contentType: false, success: function(response) { alert("hello there") }, error: function(jqXHR, textStatus, errorMessage) { alert(errorMessage); // Optional } });

What am I doing wrong?

Answer 1

You have contentType set to false, it may be that the REST service is expecting MULTIPART_FORM_DATA and you're not sending that explicit contentType.

@Consumes(MediaType.MULTIPART_FORM_DATA) means you need to pass an explicit contentType of "multipart/form-data" , which you are not doing, you are passing "false" .