productaction.java

一个简易的网上购物系统。具有普遍的购物功能。还有一个小型的论坛

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

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.Date;
import java.util.ArrayList;
import java.util.List;

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.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.upload.FormFile;
import org.apache.struts.validator.DynaValidatorForm;

import com.longHua.domain.Product;
import com.longHua.util.TimeNow;

public class ProductAction extends BaseDispatchAction {
	
	public ActionForward addProduct(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		ActionMessages messages=new ActionMessages();
		//得到物品图片的路径
		String uploadDir=servlet.getServletContext().getRealPath("/upload");
		String ext=null;
		String nowTime=null;
		//限定上传图片类型
		List<String> list=new ArrayList<String>();
		list.add("jpg");
		list.add("jpeg");
		list.add("gif");
		list.add("bmp");
		list.add("png");
		if(!uploadDir.endsWith("/"))
			uploadDir.concat("/");
		
		DynaValidatorForm productForm = (DynaValidatorForm) form;
		//首先判断是否有图片，如果有.后缀是否正确
		FormFile pictureFile=(FormFile)productForm.get("productPictrue");
		if(pictureFile ==null){
		   productForm.set("productPictrue", ".\\"+uploadDir+"\\"+"noPicture.gif");
		}else{
			//获取图片名称
			String pictureName=pictureFile.getFileName();
			//获取图片大小
			int pictureSize=pictureFile.getFileSize();
			//获取图片的扩展名
            ext=pictureName.substring(pictureName.lastIndexOf(".")+1, pictureName.length());
		    //扩展名全部转换成小写
			ext=ext.toLowerCase();
			//判断是否可上传的类型
			if(!list.contains(ext)){
				//该文件不能上传，返回的页面
				messages.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("user.upload.picture.ext"));
				return mapping.findForward("fail");
			}
			//判断文件的大小
			if(pictureSize> 1024 * 1024 * 5){
				//该文件不能上传，返回的页面
				messages.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("user.upload.picture.size"));
				return mapping.findForward("fail");
			}
			//以防上传的图片有重复的名称，所这里用当前的时间作为图片的名称,首先得到当前时间
			nowTime=String.valueOf(System.currentTimeMillis());
			//用输入流来读取用户上传的图片
			InputStream pictureIn=null;
			//将用户上传的图片保存到服务器上特定的路径上
			OutputStream pictureOut=null;
			
			try {
				pictureIn=pictureFile.getInputStream();
				pictureOut= new FileOutputStream(uploadDir+"\\"+nowTime+"."+ext);
			    int byteread=0;
			    byte[] bytes=new byte[8192];
			    while((byteread = pictureIn.read(bytes, 0,8192)) !=-1){
			    	pictureOut.write(bytes,0,byteread);
			    }
			    pictureIn.close();
			    pictureOut.close();
			} catch (FileNotFoundException e) {
				e.printStackTrace();
			} catch (IOException e) {
				try {
					pictureIn.close();
					pictureOut.close();
				} catch (IOException e1) {
					e1.printStackTrace();
				}
				e.printStackTrace();
			}

		}
		//数据库操作，先复制值
		Product product=new Product();
		product.setProductName(productForm.getString("productName"));
		product.setKeywords(productForm.getString("keywords"));
		product.setSendType(productForm.getString("sendType"));
		product.setPayType(productForm.getString("payType"));
		product.setProductUnits(productForm.getString("productUnits"));
		product.setNowPlace(productForm.getString("nowPlace"));
		product.setProductModel(productForm.getString("productModel"));
		product.setProductPictrue(".\\upload\\"+nowTime+"."+ext);
		product.setSupplier(productForm.getString("supplier"));
		product.setNowPrice(Float.valueOf(productForm.getString("nowPrice")));
		product.setProductContent(productForm.getString("productContent"));
		product.setCarriagePay(productForm.getString("carriagePay"));
		product.setProductDesc(productForm.getString("productDesc"));
		product.setProductPrice(Float.valueOf(productForm.getString("productPrice")));
		product.setProductCount(Integer.valueOf(productForm.getString("productCount")));
		product.setDuration(Date.valueOf("2008-07-12"));
		product.setBuyNum(0);
		product.setLookNum(0);
		product.setRegisterTime(TimeNow.getNowTime());
		product.setIsPreferred("N");
		product.setIsValid("N");
		product.setProductId(0);
		product.setCatId(0);
		getLongHua().addProduct(product);
		
		return mapping.findForward("success");
	}
}