I'm trying to upload a file and other form data using multipart/form-data client with Jersey. I'm uploading to a REST web service also using Jersey. Here is the server code:
@POST
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces(MediaType.APPLICATION_JSON)
public String create(@FormDataParam("file") InputStream file,
@FormDataParam("file") FormDataContentDisposition fileInfo,
@FormDataParam("name") String name,
@FormDataParam("description") String description) {
Ingredient ingredient = new Ingredient();
ingredient.setName(name);
ingredient.setDescription(description);
ingredient.setImageName(fileInfo.getFileName());
ingredient.setImagePath(context.getRealPath("/resources/uploads/"));
// TODO save the file.
try {
JSONObject json = new JSONObject();
try {
ingredientService.create(ingredient);
} catch (final InvalidParameterException ex) {
logger.log(Level.INFO, ex.getMessage());
json.put("result", false);
json.put("error", ex.getMessage());
return json.toString();
} catch (final GoodDrinksException ex) {
logger.log(Level.WARNING, null, ex);
json.put("result", false);
json.put("error", ex.getMessage());
return json.toString();
}
json.put("ingredient", JsonUtil.ingredientToJSON(ingredient));
return json.put("result", true).toString();
} catch (JSONException ex) {
logger.log(Level.SEVERE, null, ex);
return "{\"result\",false}";
}
}
I've tested the server code using a basic html form on my desktop and it works fine. The problem seems to be in the client. Here is the relevant client code.
ClientConfig config = new DefaultClientConfig();
client = Client.create(config);
client.addFilter(new LoggingFilter());
webResource = client.resource("http://localhost:8080/webapp/resources").path("ingredient");
FormDataMultiPart fdmp = new FormDataMultiPart();
if (file != null) {
fdmp.bodyPart(new FileDataBodyPart("file", file, MediaType.APPLICATION_OCTET_STREAM_TYPE));
}
fdmp.bodyPart(new FormDataBodyPart("name", ingredient.getName()));
fdmp.bodyPart(new FormDataBodyPart("description", ingredient.getDescription()));
ClientResponse response = webResource.type(MediaType.MULTIPART_FORM_DATA_TYPE).post(ClientResponse.class, fdmp);
String string = response.getEntity(String.class);
logger.log(Level.INFO, "response: {0}", string);
I'm getting a 400 response from the server "The request sent by the client was syntactically incorrect"
Here is the message that is spit out of the logger, this one is without a file to keep the output brief:
1 > POST http://localhost:8080/webapp/resources/ingredient
1 > Content-Type: multipart/form-data
1 >
--Boundary_5_1545082086_1303666703655
Content-Type: text/plain
Content-Disposition: form-data;name="name"
Adam
--Boundary_5_1545082086_1303666703655
Content-Type: text/plain
Content-Disposition: form-data;name="description"
Test
--Boundary_5_1545082086_1303666703655--
What am I doing wrong in the client to get this working correctly?
JAX-RS is an specification (just a definition) and Jersey is a JAX-RS implementation. Jersey framework is more than the JAX-RS Reference Implementation. Jersey provides its own API that extend the JAX-RS toolkit with additional features and utilities to further simplify RESTful service and client development.
If you want to add Strings to the FormDataMultiPart
just use the .field("name", "value")
method the same way it is used for the file attachment (queryParam does not work).
Below is a working sample:
First, the server part which returns the content of the read file as a String:
@Path("file")
public class FileResource {
@POST
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response handleUpload(@FormDataParam("file") InputStream stream) throws Exception {
return Response.ok(IOUtils.toString(stream)).build();
}
}
Second, the client method posting the file:
public void upload(String url, String fileName) {
InputStream stream = getClass().getClassLoader().getResourceAsStream(fileName);
FormDataMultiPart part = new FormDataMultiPart().field("file", stream, MediaType.TEXT_PLAIN_TYPE);
WebResource resource = Client.create().resource(url);
String response = resource.type(MediaType.MULTIPART_FORM_DATA_TYPE).post(String.class, part);
assertEquals("Hello, World", response);
}
Third, the test environment:
Server server;
@Before
public void before() throws Exception {
server = new Server(8080);
server.addHandler(new WebAppContext(WEB_INF_DIRECTORY, "/"));
server.start();
}
@After
public void after() throws Exception {
server.stop();
}
@Test
public void upload() {
upload("http://localhost:8080/file", "file.txt");
}
Finally, the maven dependencies:
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-multipart</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-embedded</artifactId>
<version>6.1.26</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.0.1</version>
</dependency>
</dependencies>
The file.txt
is at the root of the classpath and contains Hello, World
.
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