modifyaction.java

此项目是实现,增加,删除,修改,查询图书数据库的功能

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.hevttc.book.web.action;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;

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 com.hevttc.book.domain.Bookinfo;
import com.hevttc.book.factory.Factory;
import com.hevttc.book.service.BookService;
import com.hevttc.book.service.imp.BookServiceImp;
import com.hevttc.book.web.form.EditForm;

/**
 * MyEclipse Struts Creation date: 10-15-2007
 * 
 * XDoclet definition:
 * 
 * @struts.action path="/modify" name="editForm" input="/modify.jsp"
 *                scope="request" validate="true"
 */
public class ModifyAction 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) {

		EditForm editForm = (EditForm) form;

		// 根据fn获得标志
		String fn = editForm.getFn();

		// 获得实现类
		BookService bookservice = (BookService) Factory
				.getImp("bookserviceimp");

		// 跳转到修改数据页面
		if ("modify".equals(fn)) {

			String selectid = (String) request.getAttribute("selectedBookid");

			Bookinfo book = bookservice.findByPK(selectid);
			editForm.setBookid(book.getBkId());
			editForm.setBookname(book.getBkName());
			editForm.setAuthor(book.getBkAuthor());
			editForm.setPublishingcompany(book.getBkPublish());
			editForm.setPublishdate(book.getBkPubdate().toString());
			editForm.setStorage(Integer.toString(book.getBkStorage()));
			return mapping.findForward("modify");

			// 确定修改
		} else if ("modifyConfim".equals(fn)) {

			Bookinfo book = new Bookinfo();
			book.setBkId(editForm.getBookid());
			book.setBkName(editForm.getBookname());
			book.setBkAuthor(editForm.getAuthor());
			book.setBkPublish(editForm.getPublishingcompany());
			DateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd");
			try {
				book.setBkPubdate(dateformat.parse(editForm.getPublishdate()));
			} catch (ParseException e) {
				e.printStackTrace();
			}
			book.setBkStorage(Integer.parseInt(editForm.getStorage()));
			bookservice.modify(book);

			return mapping.findForward("success");

			// 返回主界面
		} else if ("back".equals(fn)) {

			return mapping.findForward("success");
		}
		return null;
	}
}