1.通过commons-fileupload来实现。导入相关jar包：commons-fileupload,commons-io

 

2.配置springmvc的配置解析器

 

 

3.jsp页面

 

     
      file:
      
      
     

 

4.Controller代码

 

public class FileuploadController {    @RequestMapping("/upload")    public String fileupload(@RequestParam("file")CommonsMultipartFile file, HttpServletRequest req) throws IOException{        //获取文件名 file.getOriginalFilename();        String path = req.getRealPath("/fileupload");//获取上传文件的路径        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";    }}