JSF，會話超時處理

Question

我已經在服務器中配置了會話超時，並添加了一個過濾器來處理會話超時。但是，當我試圖將其重定向回登錄頁面時，它無法正常工作。我搜查了網絡，但沒有得到任何堅實的東西。我使用JSF ..我的代碼

public class SessionTimeoutFilter implements Filter { 

private String timeoutPage = "login.seam"; 
public void init(FilterConfig filterConfig) throws ServletException { 
} 
public void doFilter(ServletRequest request, 
    ServletResponse response, FilterChain filterChain) throws IOException,ServletException { 
if ((request instanceof HttpServletRequest) 
    && (response instanceof HttpServletResponse)) 
{ 
    HttpServletRequest httpServletRequest = (HttpServletRequest) request; 
    HttpServletResponse httpServletResponse = (HttpServletResponse) response; 
    if (isSessionControlRequiredForThisResource(httpServletRequest)) { 
     if (isSessionInvalid(httpServletRequest)) 
     { 
      String timeoutUrl = httpServletRequest.getContextPath() 
      + "/" + getTimeoutPage(); 
      System.out.println("Session is invalid! redirecting to timeoutpage : " + timeoutUrl); 
      httpServletResponse.sendRedirect(timeoutUrl); 
      return; 
     } 
    } 
} 
filterChain.doFilter(request, response); 
} 

誰能告訴我什麼我做錯了什麼？爲什麼不的sendRedirect響應

Answer 1

也許這個解決方案將是適當的爲您的需求：

How to redirect to index page if session time out happened in jsf application

如果您需要在會話超時時執行一些操作，您還可以在會話狀態完全bean上創建@Destory註釋方法。