[HttpPost]

        public IActionResult Method1(IFormFile file)

        {

            return Json(new{success="ok"});

        }

<div class="layui-card">

    <div class="layui-card-header">拖拽上传</div>

    <div class="layui-card-body">

        <div class="layui-upload-drag" id="test-upload-drag">

            <i class="layui-icon layui-icon-upload"></i>

            <p>点击上传，或将文件拖拽到此处</p>

        </div><input class="layui-upload-file" type="file">

    </div>

</div>

<script>

    layui.use("upload",

        function() {

            layui.upload.render({

                elem: '#test-upload-drag',

                url: '@Url.Action("Method1")',

                accept:"file",

                done: function(res) {

                    //上传完毕回调

                },

                error: function() {

                    //请求异常回调

                }

            });

        });

</script>