SpringMVC上传文件并保存到本地代码实例

<bean id="multipartResolver"    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    <property name="maxUploadSize">      <value>100000</value>    </property>    <property name="defaultEncoding">      <value>UTF-8</value>    </property>  </bean>

@RequestMapping(value="/uploadPictures",method=RequestMethod.POST)  public Object uploadHeadPic(@RequestParam("file")CommonsMultipartFile file,InputStream inputStream,HttpServletRequest request) {    String uuid = UUID.randomUUID().toString().trim();    String fileN=file.getOriginalFilename();    int index=fileN.indexOf(".");    String fileName=uuid+fileN.substring(index);    try {      File fileMkdir=new File("F://photoTest");            if(!fileMkdir.exists()) {        fileMkdir.mkdir();      }      //定义输出流 将文件保存在D盘  file.getOriginalFilename()为获得文件的名字       FileOutputStream os = new FileOutputStream(fileMkdir.getPath()+"//"+fileName);      InputStream in = file.getInputStream();      int b = 0;      while((b=in.read())!=-1){ //读取文件         os.write(b);      }      os.flush(); //关闭流       in.close();      os.close();    } catch (Exception e) {      return ActionHelper.responseFailed("上传失败！");    }    return ActionHelper.responseOk(fileName);  }