Comment puis-je définir un service JAX-RS qui traite les données multi-parties dans JEE?

C'est ce que j'ai à ce jour:

Ce initialise mon service REST

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 {
}

Et ce que mon service ressemble:

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);
        return null;
    }
}

J'ai essayé d'ajouter @MultipartConfig à JaxRsActivatormais j'ai toujours une Exception: Demande.getParts est appelé sans multipart de configuration. Ajouter un @MultipartConfig à la servlet, ou un multipart-config élément web.xml.

3-12-08T17:03:05.013+0000|SEVERE: java.lang.IllegalStateException: Request.getParts is called without multipart configuration. Either add a @MultipartConfig to the servlet, or a multipart-config element to web.xml
at org.apache.catalina.connector.Request.checkMultipartConfiguration(Request.java:4522)
at org.apache.catalina.connector.Request.getParts(Request.java:4528)
at org.apache.catalina.connector.RequestFacade.getParts(RequestFacade.java:1086)
at com.dothatapp.web.rest.FileUpload.doUpload(FileUpload.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:125)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:195)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:91)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:346)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:341)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:101)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:224)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:198)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:946)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:323)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:372)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:335)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:218)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at com.dothatapp.web.filter.DoThatAppFilter.doFilter(DoThatAppFilter.java:27)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at com.dothatapp.web.filter.AuthFilter.doFilter(AuthFilter.java:113)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:724)

Grâce

source d'informationauteur Ioannis Deligiannis

  1. 12

    Enfin j'ai réussi à le faire fonctionner sans Maillot de couplage.
    Le problème est que @Multipart annotation ne fonctionne pas avec les Application, si vous avez besoin de la définir à l'intérieur de web.xml et à l'intérieur de la Application classe définissent le service fourni. À l'intérieur de la services, vous pouvez utiliser les annotations normalement. Notez aussi, que je suis l'extraction de la Parts de la demande, mais c'est très facile.

    PS. Ce fait met en œuvre le back-end pour bluimp JQuery file upload

    web.xml

    <servlet>
<servlet-name>com.web.rest.JaxRsActivator</servlet-name>
<multipart-config>
<location>c:\dotmp</location>
<max-file-size>35000000</max-file-size>
<max-request-size>218018841</max-request-size>
<file-size-threshold>0</file-size-threshold>
</multipart-config>
</servlet>
<servlet-mapping>
<servlet-name>com.dothatapp.web.rest.JaxRsActivator</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>

    JaxRsActivator.java

        import java.util.HashSet;
import java.util.Set;
import javax.ws.rs.core.Application;
public class JaxRsActivator extends Application {
@Override
public Set<Class<?>> getClasses() {
Set<Class<?>> s = new HashSet<Class<?>>();
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);
}
}
  2. 4

    Je crois qu'il n'est pas de manière standard pour gérer les uploads de fichier avec JAX-RS. Voir cette question. Téléchargement du fichier peut être fait dans la mise en œuvre de façon spécifique, vérifier Jersey.