如何使用GWT发布数据并重定向到其他页面？ [英] How to post data and redirect to another page using GWT?

问题描述

当我按下按钮时，我会将一些数据发布到服务器，然后重定向到另一个页面。
我使用了RequestBuilder，但它正在等待响应，当然可以。没有任何反应，同一页面停留。我看到RequestBuidler不应该用在这里......我应该用什么来发布数据并能够重定向？

When I press a button I post some data to server and there redirect to another page. I used RequestBuilder but it is waiting the response, and of course get it. And nothing happens, same page stays. I see RequestBuidler shouldn't be used here... What should I use to post data and be able to redirect?

在Spring中

@RequestMapping(method=RequestMethod.POST, value="/ddd")
public ModelAndView processOrder(@RequestBody String orderInString, HttpSession session) throws Exception{
    ...
    return new ModelAndView(new RedirectView("abc"));

}

在GWT中

In GWT

public void postData(final String data, final String url) {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
    try {
        builder.sendRequest(data, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                ...
            }

            public void onResponseReceived(Request request,
                    Response response) {
                if (200 == response.getStatusCode()) {
                    ..
                } else {
                    ..
                }
            }
        });
    } catch (RequestException e) {
        ...
    }
    return;
}

推荐答案

    FormPanel form = new FormPanel("_self");
    form.setMethod(FormPanel.METHOD_GET);

    Hidden params0 = new Hidden("param1", "value1");
    Hidden params1 = new Hidden("param1", "value2");
    Hidden params2 = new Hidden("param2", "value3");

    FlowPanel panel = new FlowPanel();
    panel.add(params0);
    panel.add(params1);
    panel.add(params2);

    form.add(panel);

    form.setAction(GWT.getModuleBaseURL() + "../MyServlet");
    RootPanel.get().add(form);
    form.submit();

就是这样。该代码添加FormPanel并发送表单。

Thats it. The code adds FormPanel and sends form.

这篇关于如何使用GWT发布数据并重定向到其他页面？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！