如何从 REST web 服务中的 curl 获取参数值

Question

Do anyone know how to get parameters' values from curl command in REST web service using java.I have write a REST web service using jersey framework and java in NetBean IDE. This is my curl command to uplaod file without metadata:

curl -T C:\Users\Folders\a.jpg -H "Content-Type:application/vnd.org.snia.cdmi.dataobject" http://localhost:8080/users/folder/a.jpg 

This is my HttpPut method for upload

@PUT
@Path("/{directory:.+}")
public Response doPut(@PathParam("directory")String data,byte[]contents)
{
..............
}

This is my curl command to upload file with metadata

curl  --data " { "metadata" : "Username":"name"}" -T C:\Users\Folders\a.jpg -H "Content-Type:application/vnd.org.snia.cdmi.dataobject" http://localhost:8080/users/folder/a.jpg 

This is my HttpPut method for upload

@PUT
@Path("/{direcotry:.+}")
public Response doPut(@PathParam("directory")String data,byte[]contents,String meta)
{
..............
}

My question is when i upload file without metadata i can upload successfully. But when i add metadata i can't get the "--data" values from curl command in doPut method. How can I solve it?

Answer 1

If you need to submit both a blob of binary data (the jpg) and some metadata (json string) in a single request, I'd recommend a request that submits a form (content type application/x-www-form-urlencoded ). This allows you to include both items in the request body.

Each item in the request is mapped to a method parameter using the@FormParam annotation, so you'd have something like this:

@PUT
@Path("/{directory:.+}")
@Consumes("application/x-www-form-urlencoded")
public Response doPut(@PathParam("directory") String directory,
                      @FormParam byte[] image,
                      @FormParam String metadata) {
    ...
}

For details on how to continue testing this with curl, see the --data-urlencode argument.