[WebMethod]//在待会写的所有方法中都要写这个，便于调试

        public string HelloWorld()

        {

            return "Hello World";

        }

 [WebMethod]

        public UserInfo Login(string userName, string pwd)

        {

            if (userName == "admin" && pwd == "")

            {

                return new UserInfo() { UserName="admin",Pwd="",Age=,Remark="我很帅" };

            }

            else

            {

                return null;

            }

        }

//第一步：添加服务引用

        //实例化服务引用：服务对象以SoapClient

        MyWebServiceSoapClient client = new MyWebServiceSoapClient();

        public ActionResult Index()

        {

            string result = client.HelloWorld();

            Response.Write(result);

            return View();

        }

        [WebMethod]
        public UserInfo Login(string userName, string pwd)
        {
            if (userName == "admin" && pwd == "123")
            {
                return new UserInfo() { UserName="admin",Pwd="",Age=50,Remark="我很帅" };
            }
            else
            {
                return null;
            }
        }

public class MyWebService : System.Web.Services.WebService

    {

        [WebMethod]

        public string HelloWorld()

        {

            return "Hello World";

        }

        /// <summary>

        /// 上传文件

        /// </summary>

        /// <param name="bytes"></param>

        /// <param name="fileName"></param>

        /// <returns></returns>

        [WebMethod]

        public bool FileUpload(byte[] bytes,string fileName)

        {

            try

            {

                //实例化内存对象MemoryStream，将byte数组装入内存对象

                MemoryStream memory = new MemoryStream(bytes);

                //文件保存路径

                string filePath = Server.MapPath("~/Files/" + fileName);

                //实例化文件对象

                FileStream fStream = new FileStream(filePath, FileMode.OpenOrCreate);

                //将内存对象写入文件对象

                memory.WriteTo(fStream);

                //释放对象

                memory.Close();

                memory.Dispose();

                fStream.Close();

                fStream.Dispose();

                return true;

            }

            catch (Exception ex)

            {

                return false;

            }

        }

        [WebMethod]

        public byte[] FileDownLoad(string FileName)

        {

            //加载路径

            string filePath = Server.MapPath("~/Files/" + FileName);

            //实例化文件对象，并读取指定的文件

            FileStream fs = File.OpenRead(filePath);

            int b1;

            //实例化内存对象

            System.IO.MemoryStream tempStream = new System.IO.MemoryStream();

            //循环读取文件并将文件转换为byte[]

            while ((b1 = fs.ReadByte()) != -)

            {

                tempStream.WriteByte(((byte)b1));

            }

            return tempStream.ToArray();

        }

        [WebMethod]

        public List<FileManager> GetFileList()

        {

            //加载路径

            string filePath = Server.MapPath("~/Files/");

            //实例化DirectoryInfo并加载指定路径

            DirectoryInfo directory = new DirectoryInfo(filePath);

            List<FileManager> result = new List<FileManager>();

            //便利指定路径下的所有文件夹

            foreach (DirectoryInfo item in directory.GetDirectories())

            {

                FileManager temp = new FileManager();

                temp.FileName = item.Name;

                temp.FilePath = item.FullName;

                temp.FileType = ;

                result.Add(temp);

            }

            //遍历指定路径下的所有文件

            foreach (FileInfo item in directory.GetFiles())

            {

                FileManager temp2 = new FileManager();

                temp2.FileName = item.Name;

                temp2.FilePath = item.FullName;

                temp2.FileType = ;

                result.Add(temp2);

            }

            return result;

        }

    }

public ActionResult FileUpload()

        {

            return View();

        }

        [HttpPost]

        public ActionResult FileUpload(HttpPostedFileBase file1)

        {

            Stream fileStream = file1.InputStream;

            byte[] bytes = new byte[fileStream.Length];

            fileStream.Read(bytes, , bytes.Length);

            // 设置当前流的位置为流的开始

            fileStream.Seek(, SeekOrigin.Begin);

            bool result = client.FileUpload(bytes, file1.FileName);

            if (result)

            {

                Response.Write("文件上传成功！");

            }

            else

            {

                Response.Write("文件上传失败！");

            }

            return View();

        }

        public ActionResult FileDownLoad()

        {

            List<FileManager> result = client.GetFileList().ToList();

            StringBuilder sb = new StringBuilder();

            sb.Append("<ul>");

            foreach (var item in result)

            {

                    sb.Append(string.Format("<li><a href='/Home/FileDownLoad/{0}'>{1}</a></li>", item.FilePath, item.FileName));

            }

            sb.Append("</ul>");

            ViewBag.FileList = sb.ToString();

            return View();

        }

        [HttpPost]

        public ActionResult FileDownLoad(FormCollection coll)

        {

            string[] s = { "", "" };

            foreach (var item in s)

            {

                byte[] result = client.FileDownLoad(item);

                //输出流的编码

                Response.Charset = "UTF-8";

                Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");

                //输出类型为流文件

                Response.ContentType = "application/octet-stream";

                Response.AddHeader("Content-Disposition", "attachment; filename=" + "新建文本文档.txt");

                Response.BinaryWrite(result);

                Response.Flush();

                Response.End();

            }

            return new EmptyResult();

        }