updatebooktype.java

该系统实现了网上购物及书店管理

package action.admin;

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 org.apache.struts.action.Action;

import bean.BookTypeBean;

import db.AdminOperation;

public class UpdateBookType extends Action {
	/**
	 * 覆盖Action的execute（）方法
	 * 
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// 创建BookTypeBean对象
		BookTypeBean btb = new BookTypeBean();
		// 设置BookTypeBean对象的相关属性
		btb.setDisplay(request.getParameter("display"));
		btb.setTypeId(Integer.parseInt(request.getParameter("bookTypeId")));
		// 创建数据库操作的AdminOperation对象
		AdminOperation db = new AdminOperation();
		// 通过AdminOperation对象更新BookType信息
		if (db.updateBookType(btb)) {
			request.setAttribute("message", "<script>alert('更新成功');</script>");
		} else {
			request.setAttribute("message", "<script>alert('更新失败');</script>");
		}
		// 关闭数据库的连接
		db.Close();
		return mapping.findForward("booktype");

	}
}