WCF webHttpBinding协议上传接收文件

一般情况下wcf用webHttpBinding协议最多的场景就是前后端Json交互，会比较轻量级。

接收上传的文件也可以，不过要自己解析处理。

前端HTML很简单：

        <input type="file" id="excel"/>

        <div class="btn btn-primary"  ng-click="upFile()">上传文件</div>

前端JS也很简单：

        $scope.upFile = function () {

            var form = new FormData();

            var file = document.getElementById("excel").files[0];

            form.append('file', file);

            $http.post('/SvcWms/InDepot/UpFile', form).then(function (data) {

                if(data.data.State === 1){

                    console.log('upload success');

                }

            });

        };

后台接口定义：

        [WebInvoke(BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json)]

        DtoResponse<bool> UpFile(Stream file);

接口实现：

    public class DtoResponse<T>

    {

        public int State { get; set; } = ;

        public string Msg { get; set; }

        public T Data { get; set; }

    }

        public DtoResponse<bool> UpFile(Stream file)

        {

            using (MemoryStream ms = new MemoryStream())

            {

                file.CopyTo(ms);

                ms.Position = ;

                using (StreamReader sr = new StreamReader(ms))

                {

                    int firstLineLen = Encoding.UTF8.GetBytes(sr.ReadLine()??"").Length;

                    var position = firstLineLen + ;

                    var line = sr.ReadLine();

                    var filename = DateTime.Now.ToString("yyMMdd.HHmmss.");

                    if(!string.IsNullOrEmpty(line)) {

                        int idx = line.IndexOf("filename", StringComparison.CurrentCultureIgnoreCase);

                        filename += line.Substring(idx + ).Replace("\"", "");

                    }

                    while (line != null)

                    {

                        // 特别是第二行含文件名称，可能含中文，所以不能直接用line.Length

                        // 因为line.Length是字符个数，不是字节个数

                        position += Encoding.UTF8.GetBytes(line).Length + ;

                        if (line == "")

                            break;

                        line = sr.ReadLine();

                    }

                    ms.Position = position;

                    ms.SetLength(ms.Length - (firstLineLen + ));

                    var uploadStream = new MemoryStream();

                    ms.CopyTo(uploadStream);

                    uploadStream.Position = ;

                    File.WriteAllBytes($"d:\\{filename}", uploadStream.ToArray());

                }

            }

            return new DtoResponse<bool>() {State = };

        }