我有一个检查会话的过滤器。我的过滤器:
public class FilterLogin implements Filter{
FilterConfig fc;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
fc = filterConfig;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse resp = (HttpServletResponse) response;
HttpSession session = req.getSession(true);
if (session.getAttribute("loginMB") == null) {
resp.sendRedirect("/home.xhtml");
} else {
chain.doFilter(request, response);
}
}
@Override
public void destroy() {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
的web.xml:
<filter>
<filter-name>filter</filter-name>
<filter-class>pl.ePrzychodnia.filter.LoginFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>filter</filter-name>
<url-pattern>/protected/*</url-pattern>
</filter-mapping>
<error-page>
<exception-type>javax.faces.application.ViewExpiredException</exception-type>
<location>/home.xhtml</location>
</error-page>
会话过期后,我应该访问网站home.xhtml。但是当会话过期并且我想点击页面中的导航菜单时,组件不会对点击做出反应...... 当我不使用Primefaces时,一切正常。当我在项目中使用primefaces时出现此错误。可能是什么原因?
我尝试使用全局异常处理程序,但我有一点问题。我从这个网站http://wmarkito.wordpress.com/2012/04/05/adding-global-exception-handling-using-jsf-2-x-exceptionhandler/
复制课程并在类CustomExceptionHandler中编辑:
try {
//log error ?
log.log(Level.SEVERE, "Critical Exception!", t);
//redirect error page
requestMap.put("exceptionMessage", t.getMessage());
nav.handleNavigation(fc, null, "/home");
fc.renderResponse();
// remove the comment below if you want to report the error in a jsf error message
//JsfUtil.addErrorMessage(t.getMessage());
}
我将nav.handleNavigation(fc, null, "/error");
更改为nav.handleNavigation(fc, null, "/home");
但是当会话超时我没有重新发送到home.xhtml页面时,只有在我点击时转到页面并且我有一个示例错误:
SEVERE: Critical Exception!
javax.faces.application.ViewExpiredException: viewId:/protected/admin/about.xhtml - View /protected/admin/about.xhtml could not be restored.
当我的会话过期时,我点击了关于页面的引用。我看到一个不完整的about.xhtml页面而不是home.xhtml
答案 0 :(得分:1)
最有可能的是,您对托管bean进行了ajax调用。这就是为什么错误导航在web xml中不起作用的原因。如果将操作作为ajax请求调用,则会将错误发送到JavaScript回调onerror
。
如果要处理服务器端的错误,可以向应用程序添加全局异常处理程序。 Adding global exception handling using JSF教程是一个很好的教程。
此外,您可以使用FullAjaxExceptionHandler
的OmniFaces功能