editfoodinfoaction.java

实现网上订餐系统

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

import java.io.File;
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.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;

import com.eatery.po.FoodInfo;
import com.eatery.po.FoodSmallType;
import com.eatery.service.FoodInfoService;
import com.eatery.struts.form.FoodInfoForm;


public class EditFoodInfoAction extends Action {
	private FoodInfoService service;
	public FoodInfoService getService() {
		return service;
	}
	public void setService(FoodInfoService service) {
		this.service = service;
	}
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		FoodInfoForm fif = (FoodInfoForm) form;
		FoodInfo fi=service.findFoodById(fif.getFoodId());
		FoodSmallType fst=new FoodSmallType();
		fi.setFId(fif.getFoodId());
		fi.setFName(fif.getFoodName());
		fi.setFPrice(fif.getFoodPrice());
		fi.setFFrom(fif.getFoodFrom());
		fst.setFstId(fif.getFoodSmallTypeId());
		fi.setFoodSmallType(fst);
		
		FormFile file=fif.getFile();
		
		/*
		 *	如果得到的数据大小是 0 次商品图片使用以前的 
		 * */
		
		if(file.getFileSize()==0){
			service.editFoodInfo(fi);
			return mapping.findForward("findMyFoods");
		}
		String fileName=file.getFileName();
		String newFileName="food/image/"+fileName;
		if(newFileName.equals(fi.getFImage())){
			fi.setFImage(newFileName);
		}else{
			String dir=servlet.getServletContext().getRealPath("/");
			try {
				File f=new File(dir+fi.getFImage());
				System.out.println("path="+dir+"/"+fi.getFImage());
				f.delete();
				InputStream is=file.getInputStream();
				OutputStream os=new FileOutputStream(dir+"food/image/"+fileName);
				byte []buffer=file.getFileData();
				os.write(buffer);
				os.close();
				is.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
			fi.setFImage(newFileName);
		}
		service.editFoodInfo(fi);
		return mapping.findForward("findMyFoods");
	}
}