1.使用commons-fileupload来实现，导入相关依赖

    	
     
      commons-fileupload
     	
     
      commons-fileupload
     	
     
      1.3.2
     
    
    	
     
      commons-io
     	
     
      commons-io
     	
     
      2.6
     
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2.jsp页面--用来上传文件

    
     	file:
     	
     
    
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3.控制器

@RequestMapping("/upload")public String fileupload(@RequestParam("file")CommonsMultipartFile file,HttpServletRequest req) throws IOException {	//获取上传文件的路径	String path=req.getRealPath("/fileupload");	InputStream is =file.getInputStream();	OutputStream os=new FileOutputStream(new File(path,file.getOriginalFilename()));	int len=0;	byte[] buffer=new byte[400];	while((len=is.read(buffer))!=-1)		os.write(buffer, 0, len);	os.close();	is.close();	return "index.jsp";}复制代码

4.在springmvc-servlet.xml配置文件上传解析器

    	
     	
     
     	
     
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5.扩展：实现多个文件上传

    
     	file:
     
     
	file:
     
     
	
     
    
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@RequestMapping("/batch")public String fileupload(@RequestParam("file")CommonsMultipartFile file[],HttpServletRequest req) throws IOException {	//获取上传文件的路径	String path=req.getRealPath("/fileupload");	for(int i=0;i