[英]session management using filters
我正在使用已编写方法的过滤器进行会话管理,并正在尝试将验证成功发送给过滤器来使用ManagedBean注释。
@ManagedBean(name = "customer")
@SessionScoped
public class CustomerBean implements Serializable{
public String checkValidCustomer(){
FacesContext context = FacesContext.getCurrentInstance();
HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
HttpSession session = request.getSession(true);
Customer cust = new Customer();
cust.setUsername(getUsername());
cust.setPassword(getPassword());
String returnValue = customerBo.checkValidCustomer(cust);
if(returnValue == "success"){
session.setAttribute("customer", returnValue);
}
else
{
session.setAttribute("customer", null);
}
return returnValue;
并且我在retunValue字符串中获得成功,因此我尝试将值作为值传递给ManagedBean注释。而myfilter代码就像。
@WebFilter("/faces/*")
public class LoginFilter implements Filter {
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse resp = (HttpServletResponse) response;
String cust = (String) req.getSession().getAttribute("customer");
if (cust != null && cust.equals("success")) {
chain.doFilter(request, response);
} else {
resp.sendRedirect(req.getContextPath() + "/faces/default.xhtml");
}
}
我得到的String cust值为空,当我打开登录页面时,它显示此网页具有重定向循环。请告诉我我做错了什么。
尝试这个...
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) resp;
System.out.println("Inside the filter.............." );
HttpSession session = request.getSession();
User u = null;
if(session.getAttribute("customer")!=null){
u = (User) session.getAttribute("customer");
}
if (u!= null)
{
System.out.println("user does exits.." + u.getUname() );// u can see who was logged here
chain.doFilter(req, resp);
}else{
System.out.println("user does exits..");
}
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