smartGWT rpc的服务器端访问数据

Question

On the server side I want to know how to access data used in an RPCRequest from SmartGwt.

Here is the SmartGwt client code:

  private void update() {
        RPCRequest request = new RPCRequest();
        request.setData("RPC text from client");
        request.setActionURL("/Empi-MT/resources/empi/update");
        request.setContentType("text/xml");

        RPCManager.sendRequest(request,
            new RPCCallback() {

                public void execute(RPCResponse response, Object obj, RPCRequest request) {
                    SC.say("Response from the server:" + obj);
                }
            });
    }

Here is the RESTful java server code .

    @POST
    @Consumes("text/xml")
    @Produces("text/xml")
    @Path("/update")
    public String update() {
        return "We got to here";
    }

This trivial code works fine, but now I need to know how to access the data that was put into the RPCRequest. How do I do that in the server code?

Thanks,

Answer 1

You look like you may be heading in the wrong direction; if this "update" operation is a CRUD operation on some object, you want to using DataSources - take a look at the QuickStart overview of Data Integration, focusing on RestDataSource.

http://www.smartclient.com/releases/SmartGWT_Quick_Start_Guide.pdf

Also you seem to be starting down the road of using generated REST services, this is almost always wrong - see this FAQ:

http://forums.smartclient.com/showthread.php?t=8159#aExistingRest

Finally if this really is not a CRUD operation, you want to set useSimpleHttp on the RPCRequest, and then the docs for this property explain the different ways data can be sent.

http://www.smartclient.com/smartgwtee/javadoc/com/smartgwt/client/rpc/RPCRequest.html#getUseSimpleHttp ()