如何在相应控制器中通过jsf页面初始化根据查询参数导航到不同的页面

How to navigate to different pages on the basis of query params by jsf page initialization in the corresponding controller

@Factory("loginContext")
@Begin(join = true)
public LoginContext initLoginContext() {
    if (loginContext == null) {
      loginContext = new LoginContext();
    }
    loginContext.setLanguageCode(LocaleSelector.instance().getLanguage());
    checkEnvironment();
    Map<String,String> requestParams = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
    String prodCode=requestParams.get("prodCode");
    String token=requestParams.get("token");
    //token validation
    if (token.equals("admin")) {
        System.out.println("admin page");
    } else if (token.equals("user")) {
        System.out.println("user page");
    } else {
        return loginContext;
    }
}

这里我将在令牌(JWE 字符串)中获取用户凭据,然后对用户进行一些验证(直到这里的代码没问题,我清楚如何执行此操作)。以后根据用户权限,直接导航到用户相关页面(而不是加载控制器相关的登录页面)

我被困在这里,请提出一些建议

在 LoginController 中,我添加了以下对我有用的代码。:

@Factory("loginContext")
@Begin(join = true)
public LoginContext initLoginContext() {
if (loginContext == null) {
  loginContext = new LoginContext();
}
loginContext.setLanguageCode(LocaleSelector.instance().getLanguage());    
Map<String,String> requestParams = 
FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
String prodCode=requestParams.get("prodCode");
String token=requestParams.get("token");
//token validation
loginContext.setToken(token);
loginContext.setProductCode(prodCode);
return loginContext; 
 }
@Factory(value = "redirectWelcome", autoCreate = true, scope = ScopeType.EVENT)
  public boolean isRedirectWelcome()
{
boolean welRet=false;
if(loginContext.isLoggedIn()==false)
{

String loginReturn=login();// login is customized method as per my requirement
if(loginReturn.equals("loggedIn"))
{
  FacesContext.getCurrentInstance().getApplication().getNavigationHandler().handleNavigation(FacesContext.getCurrentInstance(),
      null, "/myservice/auth/showWelcome/welcome.jspx?faces-redirect=true");

  loginContext.setLoggedIn(true);
  welRet=true;
}}
return welRet;

}

然后在 JSP 页面 (login.jspx) 我在正文中添加了以下内容。

<h:outputText value="Login  bypass..." rendered="#{loginController.redirectWelcome}" />