deletebookaction.java

一个简单的AJAX图书展示平台

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

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;
import java.util.Iterator;


import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.ascent.struts.form.FindBookForm;
import com.ascent.bean.Book;
/** 
 * MyEclipse Struts
 * Creation date: 03-12-2007
 * 
 * XDoclet definition:
 * @struts.action path="/deleteBook" name="findBookForm" input="/delete.jsp" scope="request" validate="true"
 * @struts.action-forward name="delete" path="/delete.jsp"
 */
public class DeleteBookAction extends BaseAction {
	/*
	 * 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) {
		FindBookForm findBookForm = (FindBookForm) form;// TODO Auto-generated method stub
		String deleteBookName=findBookForm.getBookName();
		List list=this.getBookService().findByBookName(deleteBookName);
		if(list.isEmpty())
		{
			return mapping.findForward("error");
		}
		else
		{
			
			request.getSession().setAttribute("deleteBook", list);
		    Iterator it=list.iterator();
		    while(it.hasNext())
		   {
			  Book book=(Book)it.next();
			  this.getBookService().removeBook(book);
			  return mapping.findForward("show"); 
		    }
		}
		return mapping.findForward("show");
	}
}