Re: ProjectStruture

Hi Kirill,

​It was my understanding that GWT used rpc as its protocol.  Additionally, as im constrained to JS libraries, I dont have access to any of the Document / XML modelling and parsing libraries that I use in core Java, so thought that XML based HTTP communication was not an option.

How can a GWT front-end, make standard requests and parse responses of plain http based XML?

Can it also handle file uploads to servlets?

Apologies... perhaps i've got a huge gap in my understanding.  I went through "GWT In Action" book, and didnt see anything that suited my project.

Regards, Sam​

On 20 February 2016 at 12:13, Kirill Prazdnikov <pkirill@gmail.com> wrote:

Sorry, I did not get you question.

You server uses HTTP protocol. 

You are able to sent HTTP requests form a GWT application to you server.

What prevents you from doing that ? 

-Kirill

On Saturday, February 20, 2016 at 11:29:05 AM UTC+3, Sam Wootton wrote:

Hello Kirill,

That's *exactly* what I want to aim for, that would be ideal. Hence my original post. But given that my communication between my java swing client and my servlets was xml based e.g.

<?xml version="1.0" encoding="ISO-8859-1"?>
<MFRequest>
<Request type='Login' data=''/>
<Login username='sam' password='test'/>
</MFRequest>

<MFResponse>
<Response type='Login'>
<Login name='Sam' session='CF66F005071BD0BC4F0B4D089A4F191A'/>
</Response>
</MFResponse>

now looks like (from the front-end)

server.loginUser(userName, password, repo);

then all the xml modelling is no longer applicable, and org.w3c.dom.* libraries used in the swing client to parse the XML arent available in gwt. on my server I use Document Builder and sax libraries. As mentioned in my previous post, I had a front-controller pattern e.g.

ControllerServlet

> LoginServlet

> UploadServlet

> UpdateServlet

.... etc

which Im finding hard to model in gwt's rpc world.  If i could just use a new gwt client with my old xml / servlet based server - then great! id be very happy indeed. I should also mention that my application uses multi-part file uploads too.

Regards, Sam

 

On 20 February 2016 at 06:22, Kirill Prazdnikov <pki...@gmail.com> wrote:

Can you avoid rewriting the server code at all ? 

It might be possible to just rewrite a client in GWT and leave the protocol as is.

 

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