How can I define a JAX-RS service that processes multi-part data in JEE?

Question

This is what I have so far: This initializes my REST service ``` package com.dothatapp.web.rest; import javax.servlet.annotation.MultipartConfig; import javax.ws.rs.ApplicationPath; import javax.ws.rs.core.Application; @ApplicationPath("/authed/rest") public class JaxRsActivator extends Application { } ``` And this what my service looks like: ``` import javax.servlet.http.HttpServletRequest; import javax.ws.rs.Consumes; import javax.ws.rs.POST; import javax.ws.rs.Path; import javax.ws.rs.Produces; import javax.ws.rs.core.Context; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.UriInfo; import org.json.JSONObject; @Path("fileupload") public class FileUpload { @Context private UriInfo context; @POST @Consumes(MediaType.MULTIPART_FORM_DATA) @Produces(MediaType.APPLICATION_JSON) public JSONObject doUpload(@Context HttpServletRequest obj) { try { obj.getParts(); } catch (Exception e) { e.printStackTrace(); } System.out.println(us); System.out.println(es); System.out.println(obj)…

Accepted Answer

Finally I managed to get this working by without Jersey coupling. The problem is that `@Multipart` annotation doesn't work with the `Application`, so you need to define it inside web.xml and inside the `Application` class define the provided service. Inside the services you can use annotations normally. Also note, that I am extracting the `Parts` from the request, but this is very easy. PS. This actually implements the back-end for bluimp JQuery file upload web.xml ```

com.web.rest.JaxRsActivator

c:\dotmp

35000000

218018841

0

com.dothatapp.web.rest.JaxRsActivator

/rest/*

``` JaxRsActivator.java ``` import java.util.HashSet; import java.util.Set; import javax.ws.rs.core.Application; public class JaxRsActivator extends Application { @Override public Set> getClasses() { Set> s = new HashSet>(); s.add(FileUpload.class); return s; } } ``` FileUpload.java ``` import java.io.IOException; import javax.json.Json; import javax.json.JsonArrayBuilder; import javax.json.JsonObject; import javax.json.JsonObjectBuilder; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.Part; import javax.ws.rs.POST; import javax.ws.rs.Path; import javax.ws.rs.Produces; import javax.ws.rs.core.Context; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.Response; @Path("/") public class FileUpload { @POST @Produces(MediaType.APPLICATION_JSON) @Path("fileupload") public Response doUpload(@Context HttpServletRequest request) { JsonArrayBuilder array = Json.createArrayBuilder(); try { for (Part part : request.getParts()) { String name = null; long size = 0; try { if (part.getContentType() == null || !part.getContentType().toLowerCase() .startsWith("image/")) continue; name = part.getSubmittedFileName(); size = part.getSize(); array.add(addFile(name, size, "anId")); part.delete(); } catch (Exception e) { array.add(addError(name, size, "ERROR")); } } } catch (IOException | ServletException e) { e.printStackTrace(); } JsonObject ret = Json.createObjectBuilder().add("files", array).build(); return Response.status(201).entity(ret).build(); } private JsonObjectBuilder addFile(String name, long size, String url) { return Json.createObjectBuilder().add("name", name).add("size", size) .add("lid", url); } private JsonObjectBuilder addError(String name, long size, String error) { return Json.createObjectBuilder().add("name", name).add("size", size) .add("error", error); } } ```

How can I define a JAX-RS service that processes multi-part data in JEE?

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