deletetypeaction.java

基于struts框架编写的在线考试系统

package examonline.struts.actions.admin;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import examonline.struts.forms.QuestionForm;
import org.apache.struts.action.Action;
import examonline.beans.Question;
import examonline.service.ManagerFactory;
import examonline.service.TypeDAO;

import org.apache.struts.action.ActionErrors;
import examonline.service.QuestionDAO;
import org.apache.struts.action.ActionError;
import examonline.utils.Constants;

public class DeleteTypeAction
    extends BaseAction {
  public ActionForward executeTask(ActionMapping actionMapping,
                               ActionForm actionForm,
                               HttpServletRequest servletRequest,
                               HttpServletResponse servletResponse) throws Exception{

    ActionErrors errors = new ActionErrors();
    String currentPage =servletRequest.getParameter("page");
    String delid=servletRequest.getParameter("del_id");
    int id = Integer.parseInt(delid.trim());
    TypeDAO qm = ManagerFactory.getTypeManager();
    int result = qm.deleteTypeById(id);
    if (result == 0) {
      errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.type.delete"));
      saveErrors(servletRequest, errors);
      return actionMapping.getInputForward();
    }
    else
    {
        return actionMapping.findForward(Constants.FORWORD_SUCCESS);
    }
  }
}