axios文件上传

         let formData = new FormData();
          formData.append("file", file);
          let config = {
                        headers: {
                            'Content-Type': 'multipart/form-data'
                        }
           };
          axios.post("/uploadFile", formData, config).then(
           (data)=>{

           });

  后端接收参数:@PathVariable("file") MultipartFile file