loginaction.java

《jsp网络编程技术与实例》

package examples;
import org.apache.struts.action.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginAction extends Action {

    public ActionForward execute(ActionMapping mapping,
                                 ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response) {

        String username = ((LoginForm) form).getUsername();
        String password = ((LoginForm) form).getPassword();

        ActionErrors errors = new ActionErrors();

        if ((!username.equals("deryl")) || (!password.equals("radar")))
            errors.add("password",new ActionError("error.password.mismatch"));

        if (!errors.isEmpty()) {
            saveErrors(request,errors);
            return new ActionForward(mapping.getInput());
        }

        HttpSession session = request.getSession();
        session.setAttribute("authentication", username);

        // Forward control to the specified success URI

        return mapping.findForward("success");

    }

}