第十二节——文件上传

1. 新建一个jsp页面：upload.jsp

    名称

    文件

    

2. 由于表单使用了multipart/form-data，request.getParameter(@RequestParam)将失效
3. 导入坐标

  commons-fileupload
  commons-fileupload
  1.4


  commons-io
  commons-io
  2.5

4. 在spring-mvc中配置文件上传解析器

5. 编写controller，其中方法的参数名要与页面表单中input标签中的name属性一致

@RequestMapping(value = "/quick1")
    @ResponseBody
    public void show1(String username, MultipartFile upload) throws IOException {
        System.out.println(username);
        String filename = upload.getOriginalFilename();
        upload.transferTo(new File("D:\upload\"+filename));
    }

6. 多文件上传

    名称

    文件1

    文件2

    

@RequestMapping(value = "/quick1")
    @ResponseBody
    public void show1(String username, MultipartFile[] upload) throws IOException {
        System.out.println(username);
        for (MultipartFile f:upload){
            String filename = f.getOriginalFilename();
            f.transferTo(new File("D:\upload\"+filename));
        }
    }