package com.huaao.springmvc.controller;

import java.io.File;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.FileCopyUtils;
import org.springframework.validation.BindException;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.support.ByteArrayMultipartFileEditor;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;

import com.huaao.springmvc.domain.FileUploadBean;

public class FileUploadController extends SimpleFormController{
	
	 private static Log log = LogFactory.getLog(FileUploadController.class);
	 
	 private String uploadDir;//上传文件路径
	 
	 @Override
	 protected ModelAndView onSubmit(HttpServletRequest request,HttpServletResponse response, Object cmd, BindException errors)
	            throws Exception {
	            FileUploadBean bean = (FileUploadBean) cmd;
	            byte[] bytes = bean.getFile();
	           
	            MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
	            CommonsMultipartFile file = (CommonsMultipartFile) multipartRequest.getFile("file");

	            String uploadDir = this.getUploadDir();

	            File dirPath = new File(uploadDir);
	            if (!dirPath.exists()) {
	                dirPath.mkdirs();
	            }
	            String sep = System.getProperty("file.separator");
	            if (log.isDebugEnabled()) {
	                log.debug("uploading to: " + uploadDir + sep +
	                file.getOriginalFilename());
	                }
	            File uploadedFile = new File(uploadDir + sep
	                    + file.getOriginalFilename());
	            FileCopyUtils.copy(bytes, uploadedFile);
	            
	            System.out.println("********************************");
	            
	            System.out.println(uploadedFile.getAbsolutePath());
	            System.out.println(bytes.length);
	            
	            System.out.println("********************************");
	            
	        return new ModelAndView(getSuccessView() + ".jsp");
	 }

	 protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws ServletException {
	     binder.registerCustomEditor(byte[].class, new ByteArrayMultipartFileEditor());
	 }
	 
	 public void setUploadDir(String uploadDir){
	     this.uploadDir = uploadDir;
	 }
	 
	 public String getUploadDir(){
	    return this.uploadDir;
	 }

	 
}