realstartaction.java

eclipse java/jsp 航空管理系统

/*
 * Copyright Neusoft Dalian Center,All Rights Reserved
 *
 * WEB Application Apply Struts Platform
 * 
 * PackageName shengjb.form
 * ClassName RealStartAction.java
 *
 * @author shengjb  | [e-mail]
 *
 * Created on 2005-4-13
 *
 */

package shengjb.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 shengjb.form.RealStartForm;
import shengjb.model.RealStartBean;
import zhangchunliang.model.AppMode;

/**
 * RealStartAction ActionClass
 * 
 * @author shengjb ver.0.7
 */
public class RealStartAction extends Action{
	
	/**
	 * Process the specified HTTP request, and create the corresponding HTTP
	 * response (or forward to another web component that will create it), with
	 * provision for handling exceptions thrown by the business logic. Return an
	 * {@link ActionForward}instance describing where and how control should be
	 * forwarded, or <code>null</code> if the response has already been
	 * completed.
	 * 
	 * @param mapping
	 * The ActionMapping used to select this instance
	 * @param form
	 * The optional ActionForm bean for this request (if any)
	 * @param request
	 * The HTTP request we are processing
	 * @param response
	 * The HTTP response we are creating
	 * @exception Exception
	 * if the application business logic throws an exception
	 * @since Struts 1.1
	 */
    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");
		}
    	
    	/*获得表单里的员工号*/
    	String sid = request.getParameter("sid");
   	    
   	    /*Form对象实例化*/
   	    RealStartForm realStartForm = (RealStartForm)form;
   	    
   	    /*把变量的值SET到FORM中*/
   	    realStartForm.setSid(sid);
        
    	RealStartBean startbean = new RealStartBean();
    	
    	/*定义StringBuffer变量，并用RealStartBean中的方法的返回值赋值，最后在JSP中动态的显示此变量*/
    	StringBuffer startdisplayall = startbean.startdisplayall(realStartForm);
    	String ss = null;
    	if(!startdisplayall.toString().equals("nochooseuser")){
    		
    	    /*把生成的动态列表Set到request中去,通过JSP页面GET出来*/
		    request.setAttribute("startdisplayall", startdisplayall);
		    /*实现跳转到相应的页*/
    	    return (mapping.findForward("startdisplayallsuccess"));
    	    
    	}else{
    		
    		/*实现跳转到没有选择用户错误页*/
    		return (mapping.findForward("nochooseuser"));
    	}
    } 	
}