.net webapi 文件夹上传

如果我是DJ，是DJ，是DJ，是DJ，是DJ，是DJ，是DJ，是DJ，是DJ，是DJ，，，

前言

文件夹上传目前仅支持chrome内核的浏览器。

后期整理到git（2019-5-23说：不整理了，我要干大事去了，撒由那拉~）

前端代码：

<!DOCTYPE html>

<html>

  <head>

  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

  <meta name="viewport" content="width=device-width, initial-scale=1">

  <title>uploadFile</title>

  </head>

  <body>

    <form action="http://localhost:33378/api/v1/czcf/folder/folder_upload" enctype="multipart/form-data" method="post">

        <input type="hidden" name="type" value="1"/>

        <input id="dir" type="file" name="file" webkitdirectory mozdirectory/>

        <input id="uploadDir" type="submit" value="提交文件夹">

    </form>

  </body>

</html>

后端代码：

        [HttpPost, Route("folder_upload")]

        public async Task<string> FolderUpload()

        {

            string root = HttpContext.Current.Server.MapPath("~/App_Data");

            try

            {

                var multipartMemoryStreamProvider = await Request.Content.ReadAsMultipartAsync();

                return await FolderUploadAsync(multipartMemoryStreamProvider, root);

            }

            catch (Exception e)

            {

                return "失败：" +e.Message;

            }

        }

public async Task<string> FolderUploadAsync(MultipartMemoryStreamProvider multipartMemoryStreamProvider,string root)

        {

            foreach (var content in multipartMemoryStreamProvider.Contents)

            {

                //通过判断fileName是否为空，判断是否为文件类型

                if (!string.IsNullOrEmpty(content.Headers.ContentDisposition.FileName))

                {

                    string fileName = content.Headers.ContentDisposition.FileName.Replace("\"", string.Empty);

                    using (Stream stream = await content.ReadAsStreamAsync())

                    {

                        string path = root + @"\" + fileName;

                        path = path.Substring(, path.LastIndexOf("/"));

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

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

                        stream.Seek(, SeekOrigin.Begin);

                        if (!Directory.Exists(path))

                        {

                            Directory.CreateDirectory(path);

                        }

                        if (File.Exists(root + @"\" + fileName))

                        {

                            File.Delete(root + @"\" + fileName);

                        }

                        FileStream fs = new FileStream(root + @"\" + fileName, FileMode.Create);

                        //开始写入

                        fs.Write(bytes, , bytes.Length);

                        //清空缓冲区、关闭流

                        fs.Flush();

                        fs.Close();

                        //CommonUtils.SaveFile(bytes, root + @"\" + fileName);//保存文件

                    }

                }

            }

            return "ok";

        }

上传文件过大的话，有可能会出现iis报错

需要修改web.config文件

<system.web>

    <compilation debug="true" targetFramework="4.5">

      <assemblies />

    </compilation>

    <httpRuntime targetFramework="4.5"  maxRequestLength="2147483647"  />  <!--最大2G-->

  </system.web>

<system.webServer>

    <security>

        <requestFiltering>

          <requestLimits maxAllowedContentLength="2147483647"/><!--最大2G-->

        </requestFiltering>

    </security>

</system.webServer>

巴特西

.net webapi 文件夹上传

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