Come risolvere MessageBodyWriter non trovato per tipo di supporto = errore multipart/form-data

Question

Come configurare il provider per un post multiforme semplice. Qualsiasi suggerimento/suggerimento sarebbe molto apprezzato.

Stacktrace:

org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: MessageBodyWriter not found for media type=multipart/form-data, type=class org.glassfish.jersey.media.multipart.FormDataMultiPart, genericType=class org.glassfish.jersey.media.multipart.FormDataMultiPart. 
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.aroundWriteTo(WriterInterceptorExecutor.java:227) 
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:149) 
    at org.glassfish.jersey.message.internal.MessageBodyFactory.writeTo(MessageBodyFactory.java:1139) 
    at org.glassfish.jersey.client.ClientRequest.writeEntity(ClientRequest.java:433) 
    at org.glassfish.jersey.test.inmemory.internal.InMemoryConnector.apply(InMemoryConnector.java:214) 
    at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:217) 
    at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:655) 

dipendenze pom.xml:

<dependencies> 
     <dependency> 
      <groupId>org.glassfish.jersey.test-framework.providers</groupId> 
      <artifactId>jersey-test-framework-provider-inmemory</artifactId> 
      <version>2.4</version> 
     </dependency> 
     <dependency> 
      <groupId>org.glassfish.jersey.media</groupId> 
      <artifactId>jersey-media-multipart</artifactId> 
      <version>2.4</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hamcrest</groupId> 
      <artifactId>hamcrest-all</artifactId> 
      <version>1.3</version> 
     </dependency> 
    </dependencies> 

Il Codice:

import static org.hamcrest.MatcherAssert.assertThat; 
import static org.hamcrest.Matchers.is; 

import javax.ws.rs.Consumes; 
import javax.ws.rs.POST; 
import javax.ws.rs.Path; 
import javax.ws.rs.Produces; 
import javax.ws.rs.client.Entity; 
import javax.ws.rs.client.WebTarget; 
import javax.ws.rs.core.Application; 
import javax.ws.rs.core.Form; 
import javax.ws.rs.core.MediaType; 
import javax.ws.rs.core.Response; 

import org.glassfish.jersey.media.multipart.FormDataBodyPart; 
import org.glassfish.jersey.media.multipart.FormDataMultiPart; 
import org.glassfish.jersey.media.multipart.MultiPartFeature; 
import org.glassfish.jersey.server.ResourceConfig; 
import org.glassfish.jersey.test.JerseyTest; 
import org.junit.Test; 

public class TestMultiPartTest extends JerseyTest { 

    @Override 
    protected Application configure() { 
     ResourceConfig rc = new ResourceConfig(ServerSideResource.class); 
     rc.register(MultiPartFeature.class); 
     return rc; 
    } 

    @Path("test") 
    public static class ServerSideResource { 

     @POST 
     @Path("/multipart") 
     @Consumes(MediaType.MULTIPART_FORM_DATA) 
     @Produces(MediaType.APPLICATION_JSON) 
     public Response file(FormDataMultiPart formParams) { 
      System.out.println("found multipart resource"); 
      return Response.ok().build(); 
     } 

     @POST 
     @Path("/encoded") 
     @Consumes(MediaType.APPLICATION_FORM_URLENCODED) 
     @Produces(MediaType.APPLICATION_JSON) 
     public Response file(Form formParams) { 
      System.out.println("found encoded resource"); 
      return Response.ok().build(); 
     } 

    } 

    @Test 
    public void testPostMultiPartFile() { 
     final WebTarget target = target().path("test/multipart"); 
     final FormDataMultiPart mp = new FormDataMultiPart(); 
     final FormDataBodyPart p = new FormDataBodyPart("field1", "CONTENT ONE"); 
     mp.bodyPart(p); 
     final FormDataBodyPart p2 = new FormDataBodyPart("field2", "CONTENT TWO"); 
     mp.bodyPart(p2); 

     System.out.println("making multipart request"); 
     final Response r = target.request().post(Entity.entity(mp, MediaType.MULTIPART_FORM_DATA_TYPE), Response.class); 
     System.out.println(r.getStatus()); 
     assertThat("response is 200", r.getStatus(), is(200)); 
    } 

    @Test 
    public void testPostEncodedForm() { 
     final WebTarget target = target().path("test/encoded"); 
     final Form form = new Form(); 
     form.param("test", "value"); 
     System.out.println("making encoded request"); 

     final Response r = target.request().post(Entity.form(form), Response.class); 
     System.out.println(r.getStatus()); 
     assertThat("response is 200", r.getStatus(), is(200)); 
    } 

} 

Answer 1

Ebbene, leggendo la documentazione non era disponibile ma leggendo la maglia test di integrazione di origine il codice era

Nell'istanza JerseyTest è necessario eseguire l'override del metodo configureClient e passare la classe MultiPartFeature.

@Override 
protected void configureClient(ClientConfig config) { 
    config.register(MultiPartFeature.class); 
} 

Codice lavoro:

import static org.hamcrest.MatcherAssert.assertThat; 
import static org.hamcrest.Matchers.is; 

import javax.ws.rs.Consumes; 
import javax.ws.rs.FormParam; 
import javax.ws.rs.POST; 
import javax.ws.rs.Path; 
import javax.ws.rs.client.Entity; 
import javax.ws.rs.client.WebTarget; 
import javax.ws.rs.core.Application; 
import javax.ws.rs.core.Form; 
import javax.ws.rs.core.MediaType; 
import javax.ws.rs.core.Response; 

import org.glassfish.jersey.client.ClientConfig; 
import org.glassfish.jersey.media.multipart.FormDataBodyPart; 
import org.glassfish.jersey.media.multipart.FormDataMultiPart; 
import org.glassfish.jersey.media.multipart.MultiPartFeature; 
import org.glassfish.jersey.server.ResourceConfig; 
import org.glassfish.jersey.test.JerseyTest; 
import org.junit.Test; 

public class TestMultiPartTest extends JerseyTest { 

    @Override 
    protected Application configure() { 
     ResourceConfig rc = new ResourceConfig(ServerSideResource.class); 
     rc.register(MultiPartFeature.class); 
     return rc; 
    } 

    @Override 
    protected void configureClient(ClientConfig config) { 
     config.register(MultiPartFeature.class); 
    } 

    @Path("test") 
    public static class ServerSideResource { 

     @POST 
     @Path("/multipart") 
     @Consumes(MediaType.MULTIPART_FORM_DATA) 
     // @Produces(MediaType.APPLICATION_JSON) 
     public Response file(FormDataMultiPart formParams) { 
      System.out.println("found multipart resource"); 
      return Response.ok().build(); 
     } 

     @POST 
     @Path("/encoded") 
     @Consumes(MediaType.APPLICATION_FORM_URLENCODED) 
     // @Produces(MediaType.APPLICATION_JSON) 
     public Response file(@FormParam("field3") String field3) { 
      System.out.println("found encoded resource"); 
      System.out.println("got form.field3 value: " + field3); 
      return Response.ok().build(); 
     } 

    } 

    @Test 
    public void testAnotherWay() { 
     WebTarget target = target("test/encoded"); 
     final Form form = new Form(); 
     form.param("field3", "field3 value"); 
     System.out.println("testAnotherWay"); 
     Response response = target.request().post(Entity.form(form), Response.class); 
     System.out.println(response); 
    } 

    @Test 
    public void testPostMultiPartFile() { 
     final WebTarget target = target().path("test/multipart"); 
     final FormDataMultiPart mp = new FormDataMultiPart(); 
     final FormDataBodyPart p = new FormDataBodyPart("field1", "CONTENT ONE"); 
     mp.bodyPart(p); 
     final FormDataBodyPart p2 = new FormDataBodyPart("field2", "CONTENT TWO"); 
     mp.bodyPart(p2); 

     System.out.println("field1: " + mp.getField("field1").getValue()); 
     System.out.println("field2: " + mp.getField("field2").getValue()); 
     System.out.println("making multipart request"); 
     final Response r = target.request().post(Entity.entity(mp, MediaType.MULTIPART_FORM_DATA), Response.class); 
     System.out.println(r); 
     assertThat("response is 200", r.getStatus(), is(200)); 
    } 

    @Test 
    public void testPostEncodedForm() { 
     final WebTarget target = target().path("test/encoded"); 
     final Form form = new Form(); 
     form.param("field3", "field3 value"); 
     System.out.println("making encoded request"); 

     final Response r = target.request().post(Entity.form(form), Response.class); 
     System.out.println(r); 
     assertThat("response is 200", r.getStatus(), is(200)); 
    } 

} 

Answer 2

Se si sta lavorando sul lato client, invece, come mi è stato, e l'utilizzo di Jersey 1.x, la risposta angstadt530 in questa pagina è quello che bisogno.

Jersey client exception: A message body writer was not found

DefaultClientConfig clientConfig = new DefaultClientConfig(); 
clientConfig.getClasses().add(MultiPartWriter.class); 
Client client = Client.create(clientConfig); 

è come appare nel mio codice, ma l'esempio in quella pagina è eccellente.