GWT多个html页面和导航(GWT Multiple html pages and navigation)

 嗨首先我想提一下，我知道基于ajax的应用程序和重用相同的页面。 
 
 这里的要求是，我希望有两个单独的页面，一个用于登录，另一个用于主应用程序。 现在，这不是因为我只是想要它，而是因为我在两个页面中有非常不同的布局，我很乐意将html元素和css直接放在页面中，然后将div包含在动态html中以供gwt填充。 
 
 即使在myfaces的情况下，我还没有看到用于登录和主应用页面的相同页面的应用程序。 无论如何，我面临的问题是，让我说我有两页 
 
 Login.html with div：div id =“login” 
 
 带有div的main.html：div id =“main” 
 
 我已经在web.xml中的欢迎文件列表中声明了它们现在我从登录页面开始用gwt小部件填充“登录”div并点击按钮我使用以下jsni代码重定向到“/Main.html ？gwt.codesvr = 127.0.0.1：9997" 
 
 private native void gotoURL（String url）/ - {$ wnd.location.href = url; } - /; 
 
 然后尝试填充“主”div。 但我注意到的行为是应用程序再次调用入口点，它没有找到任何元素作为“登录”并给出NPE。 有没有办法做到这一点？ 还要摆脱“？gwt.codesvr = 127.0.0.1：9997”？ 
 
 谢谢 

Hi firstly i want to mention that i am aware of ajax based application and reuse of same page.
 
The requirement here is that, i want to have two separate pages one for login and other for the main application. Now, this is not because i just want it, but because i have very different layouts in the two pages which i am comfortable to put together with html elements and css directly in the page and then putting divs to contain dynamic html for gwt to populate.
 
Even in case of myfaces i have not seen application with same page for login and the main app page. Anyways, the problem i am facing is, lets say i have two pages
 
Login.html with a div : div id="login"
 
Main.html with a div: div id="main"
 
i have declared both of them in my welcome file list in web.xml Now i start with Login page fill the "login" div with gwt widgets and on click of a button i am using following jsni code to redirect to "/Main.html?gwt.codesvr=127.0.0.1:9997"
 
private native void gotoURL(String url) /-{ $wnd.location.href=url; }-/; 
 
and then trying to populate the "main" div. But the behaviour as i noticed is that the application call the entry point again and it doesnt find any element as "login" and gives NPE. Is there a way to do this? also to get rid of the "?gwt.codesvr=127.0.0.1:9997"?
 
Thanks

原文：https://stackoverflow.com/questions/4714747