Hi Mark,
Without a complete example for myself to test i cannot really say
what is going on. The error indicates that when you are executing the
client that assocaited jersey-multipart readers/writers have not been
loaded. There might be an issue with the loading of the jersey-
multipart module, if you set logging to CONFIG it might tell you why
it could not be loaded.
I have attached a simple example you can experiment with. It is a web
app that deploys a simple servlet, and you run the Main class which
utilizes the client API. This works fine.
You should not need to write your own message body writer.
Paul.
On May 28, 2009, at 6:47 PM, Mark Petrovic wrote:
>
> Good day.
>
> This feels like a FAQ question, but I've banged my head on this long
> enough and have concluded it's time to ask for help.
>
>
>
> Craig posted an example of exactly what I want to do: use multipart/
> mixed to post a JAXB object and an attendant binary stream in a
> single POST operation:
>
> https://jersey.dev.java.net/servlets/ReadMsg?listName=users&msgNo=3579
>
> However, when I try this same technique in a client I wrote, the
> client throws an exception
>
> Exception in thread "main"
> com.sun.jersey.api.client.ClientHandlerException:
> com.sun.jersey.api.client.ClientHandlerException: A message body
> writer for Java type, class com.sun.jersey.multipart.MultiPart, and
> MIME media type, multipart/mixed, was not found
> at
> com
> .sun
> .jersey
> .client
> .urlconnection
> .URLConnectionClientHandler.handle(URLConnectionClientHandler.java:
> 128)
> at com.sun.jersey.api.client.Client.handle(Client.java:397)
> at
> com.sun.jersey.api.client.WebResource.voidHandle(WebResource.java:579)
> at com.sun.jersey.api.client.WebResource.access
> $500(WebResource.java:69)
> at com.sun.jersey.api.client.WebResource
> $Builder.post(WebResource.java:487)
> at
> org
> .carpediem
> .conman.client.ConmanClient.createContact(ConmanClient.java:36)
> at org.carpediem.conman.client.ConmanClient.run(ConmanClient.java:21)
> at org.carpediem.conman.client.ConmanClient.main(ConmanClient.java:
> 15)
> Caused by: com.sun.jersey.api.client.ClientHandlerException: A
> message body writer for Java type, class
> com.sun.jersey.multipart.MultiPart, and MIME media type, multipart/
> mixed, was not found
> at
> com
> .sun
> .jersey
> .api
> .client
> .TerminatingClientHandler
> .writeRequestEntity(TerminatingClientHandler.java:308)
> at
> com
> .sun
> .jersey
> .client
> .urlconnection
> .URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:
> 179)
> at
> com
> .sun
> .jersey
> .client
> .urlconnection
> .URLConnectionClientHandler.handle(URLConnectionClientHandler.java:
> 126)
> ... 7 more
>
>
> Here is the client code:
>
> package org.carpediem.conman.client;
>
> import com.sun.jersey.api.client.Client;
> import com.sun.jersey.api.client.WebResource;
> import com.sun.jersey.multipart.MultiPart;
> import org.apache.commons.cli.CommandLine;
> import org.carpediem.schema.conman.ContactInfo;
>
> import javax.ws.rs.core.MediaType;
> import java.io.FileInputStream;
>
> public class ConmanClient extends Base {
>
> public static void main(String[] argv) {
> ... // setup
> }
>
> private void createContact(String emailAddress, String
> documentFile, String mimeType) throws Exception {
> // A JAXB object
> ContactInfo cInfo = cInfo(emailAddress, mimeType);
>
> Client client = Client.create();
> WebResource service = client.resource("http://localhost:8080/conman/services
> ");
>
> MultiPart mp = new MultiPart();
> mp.bodyPart(cInfo, MediaType.APPLICATION_XML_TYPE)
> .bodyPart(new FileInputStream(documentFile),
> MediaType.APPLICATION_OCTET_STREAM_TYPE);
>
> service.path("/contacts").type("multipart/mixed").post(mp);
> }
>
> }
>
>
> The base class "Base" contains only uninteresting non-JAX-WS-related
> helper methods.
>
> I'm using maven to drive the build and exec; the pom.xml file
> references these dependencies related to Jersey:
>
> <dependency>
> <groupId>com.sun.jersey</groupId>
> <artifactId>jersey-client</artifactId>
> <version>1.1.0-ea</version>
> </dependency>
> <dependency>
> <groupId>com.sun.jersey.contribs</groupId>
> <artifactId>jersey-multipart</artifactId>
> <version>1.1.0-ea</version>
> </dependency>
>
>
> I read the "example upload" code that Paul posted sometime back,
> which is similar and I thought instructive:
>
> https://jersey.dev.java.net/servlets/ReadMsg?list=users&msgNo=5738
>
> ...and I'm still baffled as to how my code differs from either
> Craig's or Paul's such that the exception obtains. And I haven't
> even gotten to debugging the REST resource handler in the server :-)
>
>
> Can someone please help clear up why the exception obtains? I tried
> writing my own MessageBodyWriter, but I didn't have much luck with
> that. Besides, for a JAXB object and a binary stream, I didn't
> think I needed one??
>
> Thanks.
>
> Mark
>
>
>
> --
> Mark Petrovic
> mark_at_petrovic.org
> http://www.petrovic.org
>
>
>
>
>
>
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