spring boot 一次上传多个文件

两种方式：

1.将多个文件置为同一个名称，放入数组

	@RequestMapping(value="/item/store", method=RequestMethod.POST)
	@ApiOperation(value = "添加幻灯片项", httpMethod = "POST", response = IBaseResult.class)
	@ResponseBody
	public IBaseResult storeItem(@ApiIgnore @ModelAttribute SlideshowItem slideshowItem
			,@RequestParam("images") MultipartFile[] images
			,HttpServletRequest request
			){

                    ......

	}

2.将多个文件永不同的名称区分开

注意：requred  = false,允许这个文件为空

	@RequestMapping(value="/item/update/{slideshowItemId}", method=RequestMethod.POST
			, consumes=MediaType.MULTIPART_FORM_DATA_VALUE,produces = MediaType.APPLICATION_JSON_VALUE)
	@ApiOperation(value = "修改幻灯片项", httpMethod = "POST", response = IBaseResult.class)
	@ResponseBody
	@ApiImplicitParams({
		@ApiImplicitParam(name="title",value="标题",dataType="String", paramType = "query")
		,@ApiImplicitParam(name="ordering",value="排序号",dataType="Integer", paramType = "query")
	})
	public IBaseResult updateItem(@ApiIgnore @ModelAttribute SlideshowItem slideshowItem, 
			@PathVariable("slideshowItemId") Integer slideshowItemId
			,@RequestParam(required=false,name="backGround") MultipartFile backGround 
			,@RequestParam(required=false,name="overturnBackGround") MultipartFile overturnBackGround 
			,@RequestParam(required=false,name="overturnFrontGround") MultipartFile overturnFrontGround 
			,HttpServletRequest request
			) {......}