Redirect on Ajax Jquery Call
- by Mark Estrada
Hi,
I am newbie to ajax here and I know somebody would have encountered this problem already.
I have a legacy app built on Spring MVC, it has a interceptor(filter) that redirects the user to the login
page whenever there is no session.
public class SessionCheckerInterceptor extends HandlerInterceptorAdapter {
public boolean preHandle(HttpServletRequest request,
HttpServletResponse response, Object handler) throws Exception {
HttpSession session = request.getSession();
// check if userInfo exist in session
User user = (User) session.getAttribute("user");
if (user == null) {
response.sendRedirect("login.htm");
return false;
}
return true;
}
}
For non-xmlhttp request, this works fine.. but when I try to use ajax in my application, everything gets weird,
it is not able to redirect to the login page correctly.
As check the value of the
xhr.status = 200 textStatus = parseError errorThrown = "Invalid JSON -Markup of my HTML Login Page-
$(document).ready(function(){
jQuery.ajax({
type: "GET",
url: "populateData.htm",
dataType:"json",
data:"userId=SampleUser",
success:function(response){
//code here
},
error: function(xhr, textStatus, errorThrown) {
alert('Error! Status = ' + xhr.status);
}
});
});
I checked on my firebug that there is a 302 HTTP response but I am not sure how to catch the response and redirect the user to the login
page. Any idea here? Thanks.
