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

mvc:

 

3 jsp页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>                  
         
         
             
         
         
               
     
            file:
       
            
     
  

4 controller代码

@Controllerpublic class FileUploadController {    @RequestMapping("/upload")    public String fileupload(@RequestParam("file")CommonsMultipartFile file,HttpServletRequest req) throws IOException{        //获取文件名        //file.getOriginalFilename();        //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";    }}

批量上传的代码

@RequestMapping("/batch")    public String fileupload(@RequestParam("file")CommonsMultipartFile file[],            HttpServletRequest req) throws IOException{        //获取文件名        //file.getOriginalFilename();        //获取上传文件的路径        String path = req.getRealPath("/fileupload");        for (int i = 0; i < file.length; i++) {                    InputStream is = file[i].getInputStream();        OutputStream os = new FileOutputStream(new File(path,file[i].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";    }