public class HelloworldClient {

    public static HelloworldClient CLIENT;
    
    private String _url;

    private HelloworldClient(String string) {
        _url = string;
    }
    private HelloService _service;

    public static void setServerUrl(String url) {
        CLIENT = new HelloworldClient(url);
    }

    private HelloService getService() {
        if (_service == null) {
            try {
                //通过Hessian调用服务器端服务
                HessianProxyFactory factory = new HessianProxyFactory();
                _service = (HelloService) factory.create(HelloService.class, _url);
            } catch (MalformedURLException ex) {
                System.out.println(ex);
            }

        }

        return _service;
    }

    //供JavaFX调用
    public String hello(String s) {
        return getService().hello(s);
    }
}

class Hello {
    attribute name:String;
    attribute str:String;
}

var helloModel = new Hello();

HelloworldClient.setServerUrl(ARGUMENTS:String);

Frame {
    width: 300
    height: 200
    title: "Exadel Flamingo Helloworld Spring Sample"
    centerOnScreen: true
    onClose: operation(){ System.exit(0);}
    content: GridPanel {
        border: EmptyBorder {
            top: 30
            left: 30
            bottom: 30
            right: 30
        }
        rows: 3
        columns: 1
        vgap: 10
        cells:
            [TextField {
            value: bind helloModel.name
        },
        Button {
            text: "Say Hello!"
            action: operation() {
                //调用Controller控制器HelloworldClient的hello方法 
                //将返回结果赋值给JavaFX的数据对象helloModel
                helloModel.str = HelloworldClient.CLIENT.hello(helloModel.name);
            }
        },
        Label {
            text: bind "Server says: {helloModel.str}"
        }]
    }
    visible: true
};