statisticaction.java

简单的web应用,实现基本的购物车功能,有良好的扩展性

package struts.action;

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 struts.actionform.StatisticForm;
import org.apache.struts.action.Action;
import bo.OrderBo;

public class StatisticAction extends Action {
    public ActionForward execute(ActionMapping actionMapping,
                                 ActionForm actionForm,
                                 HttpServletRequest servletRequest,
                                 HttpServletResponse servletResponse) {
        StatisticForm form = (StatisticForm) actionForm;
        return this.getActionForward(actionMapping, form, servletRequest);
    }

    /**
     * 页面转向
     * @param mapping
     * @param theForm
     * @return 将要转向的页面
     */
    private ActionForward getActionForward(ActionMapping mapping,
                                           StatisticForm form,
                                           HttpServletRequest request) {
        String event = form.getEvent();
        OrderBo bo = OrderBo.getInstance();
        if ("search".equals(event)) {
            bo.statisticOrder(form);
        }
        return mapping.findForward("statistic");
    }

}