bookaction.java

一个ssh的网上购物系统

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

import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;
import org.apache.struts.upload.FormFile;

import com.xfaccp.bookonline.hib.dao.BookTableDAO;
import com.xfaccp.bookonline.hib.dto.BookTable;

/**
 * MyEclipse Struts Creation date: 09-26-2007
 * 
 * XDoclet definition:
 * 
 * @struts.action path="/book" name="bookForm" parameter="type" scope="request"
 *                validate="true"
 */
public class BookAction extends DispatchAction {
	/*
	 * Generated Methods
	 */

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */

	public ActionForward xiugai(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		BookTable book = (BookTable) form;
		System.out.println(book.getBookid());
		FormFile file = book.getFile();

		// If no file was uploaded (e.g. first form load), then display View
		if (file == null) {
			return mapping.findForward("success");

		}

		// Get the name and file size

		String fname = file.getFileName();
		this.uploadMethod(file);
		// Clean up our toys when done playing
		file.destroy();
		String[] s = fname.split("[.\n]");
		if (s.length > 0) {
			if (s[s.length - 1].equals("gif") || s[s.length - 1].equals("jpg")) {
				book.setPicture(fname);
			}

		} else {
			return mapping.findForward("fail");
		}
		this.uploadMethod(file);
		BookTableDAO dao = new BookTableDAO();
		dao.updateMethod(book);
		System.out.println(book.getBookname());
		return mapping.findForward("success");
	}

	public ActionForward add(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		BookTable hff = (BookTable) form;

		// org.apache.struts.upload.FormFile contains the uploaded file
		FormFile file = hff.getFile();

		// If no file was uploaded (e.g. first form load), then display View
		if (file == null) {
			return mapping.findForward("success");

		}

		// Get the name and file size

		String fname = file.getFileName();
		this.uploadMethod(file);
		// Clean up our toys when done playing
		file.destroy();
		String[] s = fname.split("[.\n]");
		if (s.length > 0) {
			if (s[s.length - 1].equals("gif") || s[s.length - 1].equals("jpg")) {
				hff.setPicture(fname);
			}

		} else {
			return mapping.findForward("fail");
		}
		BookTableDAO dao = new BookTableDAO();
		if (dao.save(hff)) {
			return mapping.findForward("success");
		} else {
			return mapping.findForward("fail");
		}

		// Forward to default display

	}

	public ActionForward delete(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		String id = request.getParameter("id");
		BookTableDAO dao = new BookTableDAO();
		BookTable book = dao.findById(new Integer(id));
		dao.delete(book);
		System.out.println("execute delete method" + book.getBookid());
		return mapping.findForward("success");

	}

	public void uploadMethod(FormFile file) {
		String dir = servlet.getServletContext().getRealPath("/upload");
		try {
			String fname = file.getFileName();
			InputStream streamIn = file.getInputStream();
			OutputStream streamOut = new FileOutputStream(dir + "/" + fname);

			int bytesRead = 0;
			byte[] buffer = new byte[8192];
			while ((bytesRead = streamIn.read(buffer, 0, 8192)) != -1) {
				streamOut.write(buffer, 0, bytesRead);
			}

			streamOut.close();
			streamIn.close();

			// Populate the form bean with the results for display in the View
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
}