restoreaction.java

eclipse java/jsp 航空管理系统

package zhangchunliang.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.form.FileForm;
import zhangchunliang.model.AppMode;
import zhangchunliang.model.UpLoadXML;
import zhangchunliang.model.XMLReader;

/**
 * @author			:张春亮|[e-mail]
 * @version			:0.1
 *
 * <p>Description	:该类用于实现数据库恢复操作的Action</p>	
 * <p>Project		:CIQMS</p>
 * <P>Company		:东软股份国际合作事业部</p>
 * <p>CreateDate	:2005-4-26</p>
 */

public class RestoreAction extends Action {

	public ActionForward execute(ActionMapping map, ActionForm form, HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		/*先进行备份操作*/
		if(AppMode.getAppMode())
			return map.findForward("appmode");
		
		if(AppMode.getNumOfRegisteredUser()>0)
			return map.findForward("wait");
	
		
		if(request.getSession().getAttribute("isBackup")==null)
			request.getSession().setAttribute("isBackup","no");
		
		if(request.getSession().getAttribute("isBackup").equals("no"))
			return map.findForward("backup_db");
		
		request.setCharacterEncoding("utf-8");
		/*将默认的form转换为FileForm类型*/
		FileForm uploadForm=(FileForm)form;
		/*实例化UpLoadXML对象，用于上传XML文件*/

		UpLoadXML uploadxml=new UpLoadXML(uploadForm);

		XMLReader xmlreader=new XMLReader(uploadxml.getDocument());
		System.out.println("here is XMLReader.");
		/*调用XMLReader的xmlWriteDB()方法进行数据库的恢复*/
		if(xmlreader.xmlWriteDB()){
			System.out.println("restore is successful!");
			return map.findForward("success");
		}
		else{
			System.out.println("restore is failure!");
			return map.findForward("failure");
		}
		

		
		
	}
}