queryupdateaction.java

eclipse java/jsp 航空管理系统

/*
 * @(#)AddPassenger.java 1.0 2005/04/19   
 * <p>copyright:    Copyright 东软 国际合作事业部版权所有</p>
 * <p>company:      neusoft</p>
 * <p>time:         2005.04.19</p>
 */
package jiasir.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import zhangchunliang.model.AppMode;
import jiasir.form.QueryPassenger;
import jiasir.model.QueryPassengerModel;
import jiasir.form.Passenger;
import jiasir.DrawOption;
import jiasir.FormatString;

/**
 * 处理修改违禁品信息页面中查询的Action
 * @author    王嘉     
 * @version   1.0， 2005/04/19
 */
public class QueryUpdateAction extends Action{
    /**
     * 返回执行操作后的跳转
     * @param mapping         
     * @param form       
     * @return
     */
    public ActionForward execute(ActionMapping mapping, 
            ActionForm form, HttpServletRequest request,
            HttpServletResponse response) throws Exception {
    	
		if(!AppMode.getAppMode()){
			System.out.println("Application is terminated...");
			return mapping.findForward("appInfo");
		}
    	
    	
        /** Form对象实例化 */
        QueryPassenger queryPassenger = (QueryPassenger)form;        
        /** Model对象实例化 */
        QueryPassengerModel queryUpdateModel = new QueryPassengerModel();
        /** Model属性初始化 */
        queryUpdateModel.queryType = queryPassenger.getQueryType();
        queryUpdateModel.queryInfo = 
                           FormatString.convert(queryPassenger.getQueryInfo());
        
        
        /** 临时变量保存返回值 */
        Passenger passenger[];
        /** 取得返回值 */
        passenger = queryUpdateModel.executeSQL();
        /** 
         * 根据返回值返回不同的ActionForward
         * todraw 查询成功后调用DrawOption画出表格显示在当前页面
         * error 跳转到错误页面
         */
        if(passenger != null) {
            /** 设置request中各个属性的值 */
            StringBuffer draw=DrawOption.drawTable(passenger,passenger.length);
            request.setAttribute("draw", draw);
            return mapping.findForward("todraw");
        } else{  
            return mapping.findForward("error");
        }
    }
}