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);
  }