spring mvc 实现图片的上传

用sping的mvc实现图片的上传。步骤如下：
jsp页面内容如下：

<form   action="picture_submit.asp" method="post"   enctype="multipart/form-data" >
<input name="files" type="file" />
<input type="submit"  value="确定"  />

在xx-servlet.xml文件中加入：

<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />

在相应的controller类中加入：

    

@RequestMapping("/picture_submit.asp")
	@Transactional(propagation = Propagation.REQUIRED)
	public String managerPicture(@RequestParam("files") MultipartFile file,
			Model model, HttpServletRequest request, Picture picture)
			throws Exception {
		//具体的业务处理
			return "success";
                          }

参考http://dakulaliu.iteye.com/blog/236235