jsp

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       104857600
          	       
        	        
         	            
      
       4096
          	        
        	         
         	            
      
       utf-8
          	        
          
    

 controller 里          MultipartFile file 必须加    @RequestParam

@RequestMapping(value="/upload")public ModerAndView save(			@RequestParam(required=false) MultipartFile file			) throws Exception{//...copyFile(file.getInputStream(), filePath, fileName+extName).replaceAll("-", "")//... return mv}

 -----上传 File.separator 路径自适应分割符

/**	 * 写文件到当前目录的upload目录中	 * 	 * @param in	 * @param fileName	 * @throws IOException	 */	private static String copyFile(InputStream in, String dir, String realName)			throws IOException {		File file = new File(dir, realName);		if (!file.exists()) {			if (!file.getParentFile().exists()) {				file.getParentFile().mkdirs();			}			file.createNewFile();		}		FileUtils.copyInputStreamToFile(in, file);		return realName;	}