将查询参数传递给下一页

Question

<beans:bean id="successHandler" class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">
    <beans:property name="defaultTargetUrl" value="/order.htm"/>
    <beans:property name="alwaysUseDefaultTargetUrl" value="true"/>         
</beans:bean>

Hi, i have a success handler like above. When the user lands on login page with query param, i need to retain the query param on post login pages. how can i achieve that? I managed to see the request params in successfulAuthentication method which authenticates the user. the only challenge is how to pass on the same query params to next page some thing like below? or any other better way?

<beans:property name="defaultTargetUrl" value="/order.htm?paramTest=pp1"/>

Edit SavedRequestAwareAuthenticationSuccessHandler has the capability to retain the previous url(here url with query param in this case), but i have defaultTargetUrl set to new url, which is why its not effective. any possibilities to build the new defaultTargetUrl with query params from the previous login page?

Answer 1

I managed to override SavedRequestAwareAuthenticationSuccessHandler to achieve the same

public class CustomSavedRequestAwareAuthenticationSuccessHandler extends SavedRequestAwareAuthenticationSuccessHandler {

private final Logger logger = ResmedLogger.getInstance().getTraceLogger();

@Override
public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
        Authentication authentication) throws ServletException, IOException {
    HttpSession session = request.getSession();
    if (session != null) {
        String paramTest = (String) session.getAttribute("paramTest");
        logger.info("paramTest="+paramTest);
        if (paramTest != null) {
            // we do not forget to clean this attribute from session
            session.removeAttribute("paramTest");
            // then we redirect
            getRedirectStrategy().sendRedirect(request, response, "/order.htm?paramTest="+paramTest);
        } else {
            super.onAuthenticationSuccess(request, response, authentication);
        }
    } else {
        super.onAuthenticationSuccess(request, response, authentication);
    }
}

}