deletebookaction.java

图书商城系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.tang.admin.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;

import com.tang.admin.foruse.AdminBean;
import com.tang.admin.foruse.BookDAO;
import com.tang.admin.foruse.UserDAO;

/** 
 * MyEclipse Struts
 * Creation date: 06-01-2008
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class DeletebookAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		String target = "failure";
		HttpSession session = request.getSession();
		AdminBean bean = (AdminBean)session.getAttribute("user");
		ActionErrors errors = new ActionErrors();
		
		String uidstring = request.getParameter("uid");
		int uid = 0;
		if(bean!=null)
		{
			if(uidstring!=null)
				uid = Integer.parseInt(uidstring);
			BookDAO facade = new BookDAO();
			facade.open();
			if(facade.delete("delete from books where id="+uid))
			{
				target = "success";
			}
			else
				target = "error";
		}else {
			ActionMessage msg = new ActionMessage("您尚未登录", false);
			errors.add("login", msg);
			request.setAttribute(org.apache.struts.Globals.ERROR_KEY, errors);
			mapping.findForward(target);
		}
		return mapping.findForward(target);
	}
}