【Spring学习笔记-MVC-13.2】Spring MVC之多文件上传

1. commons-fileupload-1.2.2.jar；
   
2. commons-io-2.0.1.jar；

@RequestMapping(value = "/upload")
	public String updateThumb(HttpServletRequest request,
			HttpServletResponse response, ModelMap mmMap)
			throws IllegalStateException, IOException {
	// 创建一个通用的多部分解析器
		CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(
				request.getSession().getServletContext());
		
		//判断 request 是否有文件上传,即多部分请求  
        if(multipartResolver.isMultipart(request)){  
            //转换成多部分request    
            MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest)request;  
            //取得request中的所有文件名  
            Iterator<String> iter = multiRequest.getFileNames();  
            while(iter.hasNext()){  
                //取得上传文件  
                MultipartFile file = multiRequest.getFile(iter.next());  
               
                //对上传文件进行处理
                if(!file.isEmpty()){  
                	String path = request.getSession().getServletContext()
        					.getRealPath("upload");
        			String fileName = file.getOriginalFilename();
        			File targetFile = new File(path, fileName);
        			if(!targetFile.exists()){  
        	            targetFile.mkdirs();  
        	        }  
        			//保存  
        	        try {  
        	            file.transferTo(targetFile);  
        	            System.out.println("保存文件【"+file.getOriginalFilename()+"】完成...");
        	        } catch (Exception e) {  
        	            e.printStackTrace();  
        	        }  
                }  
            }  
              
        }
		return "success";  
	}