07-springMVC笔记-file-upload文件上传

    commons-fileupload
    commons-fileupload
    1.4

@RequestMapping("/upload")
public String upload(@RequestParam("file") CommonsMultipartFile file, HttpServletRequest request) throws IOException {
    //上传路径保存设置
    String path = request.getSession().getServletContext().getRealPath("/upload");
    File realPath = new File(path);
    if (!realPath.exists()) {
        realPath.mkdir();
    }
    //上传文件地址
    System.out.println("上传文件保存地址：" + realPath);
    //通过CommonsMultipartFile的方法直接写文件
    file.transferTo(new File(realPath + "/" + file.getOriginalFilename()));
    return "上传成功";
}