从支持bean导航到外部URL? [英] Navigate to external URL from a backing bean?

问题描述

我正在尝试为我的Java EE/JSF2应用程序实现正确的注销.

I'm trying to implement proper logout for my Java EE / JSF2 application.

它需要两件事:

1. 我需要从JAAS中注销，并使会话无效
2. 然后我必须导航到一个外部URL来触发Siteminder注销

Siteminder注销URL(在策略服务器上配置->我无法更改)在我的应用程序上下文之外.例如.如果我的Web应用程序URL为 https://localhost:8080/sm/MyWebApp ，则注销URL为 https://localhost:8080/anotherwebapp/logout.html .

The Siteminder logout URL (configured on the Policy server -> I cannot change it) is outside my applications context. Eg. if my webapp URL is https://localhost:8080/sm/MyWebApp then the logout URL is https://localhost:8080/anotherwebapp/logout.html.

这是当前的本地注销代码:

This is the current local logout code:

public void logout() {
    System.out.println("Logging out...");
    HttpServletRequest request = (HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();
    try {
        request.logout();
    } catch (ServletException e) {
        e.printStackTrace();
    }
    HttpSession session = (HttpSession)FacesContext.getCurrentInstance().getExternalContext().getSession(false);
    if (session != null) {
        session.invalidate();
    }
}

这是产生注销URL的属性:

And here is the property that produces the logout URL:

public String getLogoutUrl() {
    HttpServletRequest request = (HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();
    String requestServer = request.getServerName();
    String requestScheme = request.getScheme();
    int serverPort = request.getServerPort();
    String logoutUrl = requestScheme + "://" + requestServer + ":" + Integer.toString(serverPort) + "/anotherwebapp/logout.html";
    return logoutUrl;
}

但是，我找不到可以调用logout()然后打开外部URL的JSF2/Primefaces组件.例如，如果我有:

However, I cannot find a JSF2 / Primefaces component that can call logout() then open the external URL. For example, if I have:

<h:outputLink value="#{authBean.logoutUrl}" onclick="#{authBean.logout()}">[Logout]</h:outputLink>

然后似乎未调用onclick.

then onclick does not seem to be called.

我尝试的另一种方法是将外部URL放在注销函数的末尾，以使其作为导航字符串返回，但无法识别(也尝试使用?faces-redirect = true" ...).

Another way I tried was putting the external URL to the end of the logout function to have it returned as a navigation string but it is not recognized (also tried with "?faces-redirect=true"...).

任何帮助将不胜感激.

推荐答案

您可以创建页面logout.xhtml，因此代码如下所示:

You can create a page logout.xhtml, so the code will look like this:

public String getLogoutUrl() {
    return "/logout.jsf";
}

，然后在页面中添加:

<META HTTP-EQUIV="Refresh" CONTENT="0;URL=https://localhost:8080/anotherwebapp/logout.html">

这篇关于从支持bean导航到外部URL?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！