GWT：如何验证下载后入口点？ [英] GWT: How to download EntryPoint after authenticating?

问题描述

这里的想法是让我的GWT应用程序在2个不同的模块：

The idea here is to have my GWT app in 2 different modules:

1. WebModule （入口点），仅仅包含一个登录界面;和


2. 的AppModule （入口点），其中包含的主要应用

1. WebModule (entry point) that simply contains a login screen; and
2. AppModule (entry point) that contains the main application

当用户访问网站时， WebModule 下载到他们的浏览器和presents登录屏幕给他们。然后，他们必须提交用户名和密码，然后使用GWT-RPC来验证他们的身份，并确定他们是否被允许继续进行。

When users go to the website, the WebModule downloads into their browser and presents a login screen to them. They must then submit a username and password, which then uses GWT-RPC to authenticate them and determine if they are allowed to proceed.

如果验证通过，我想的AppModule 来下载，它有自己的出发地点（和各视图/ presenter），我想用户被重定向到那个地方。

If authentication passes, I would like the AppModule to be downloaded, which has its own starting Place (and respective view/presenter), and I would like the user to be redirected to that place.

我怎么能实现这个功能？既：

How could I implement this functionality? Both:

• 强制的AppModule 只有成功登录后下载;和


• 将用户重定向到的AppModule 的首发位置？

• Forcing the AppModule to download only upon successful login; and
• Redirecting the user to the AppModule's starting place?

在此先感谢！

推荐答案

我与面板普兰。
我的GWT应用程序有一个结构：

I'm plaing with panels. My GWT applications have a structure:

公共类课程实现入口点{

public class Courses implements EntryPoint {

....所有变量

public void onModuleLoad() {
    // Login - select from database all user
    //
    statusMessage.setText("Waiting for users list.");
    String message = new String();
    myDatastoreService.loginSelect(message,
            new AsyncCallback<List<LoginInfo>>() {
        public void onFailure(Throwable error) {
            Window.alert(error.getMessage());
        }

        public void onSuccess(List<LoginInfo> result) {
            statusMessage.setText("");
            loginInfo = result;
            if (loginInfo.isEmpty()) {
                System.out.println("Empty");
                UserDialog createUser = new UserDialog();
                createUser.userInfo("F", -1, currentUser,
                            userTable, loginInfo, statusMessage);
            } else {
                loginDialog();
            }
        }
    });
    RootPanel.get("statusPanelContainer").add(statusMessage);
}
// Login dialog:
private void loginDialog() {
    //Here you have to put all panels you need for login
    // If login is successfully : you have to remove all login panels from main panels (not root)
    // and call main dialog
     mainDialog();
    // If login is not successfully you stay on login panel

}
private void mainDialog() {
    // Here you put all your applications mains panels
}

}

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