FTP 图片上传

1，前台代码：

 1 <head runat="server">
 2     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 3     <title></title>
 4     <script src="../../jquery-easyui-1.4.2/jquery.min.js"></script>
 5 </head>
 6 <body>
 7     <form id="form1" method="post">
 8         <div>
 9             <table>
10                 <tr>
11                     <td style=" 80px; text-align: right">上传图片：</td>
12                     <td>
13                         <a id="ImgJump" name="ImgJump" href="" target="_blank">
14                             <img id="Picture" name="Picture" src="" style=" 150px; height: 150px" />
15                         </a>
16                         <input type="file" id="ImgFile" name="ImgFile" multiple="multiple" />
17                        <%-- multiple="multiple"属性为多图片--%>
18                     </td>
19                 </tr>
20             </table>
21             <input type="hidden" id="ImgHidden" value="" />
22         </div>
23     </form>
24     <script>
25         $("#ImgFile").change(function () {
26             debugger;
27             var falelist = $("#ImgFile").prop('files');
28             let formData = new FormData();
29             for (let i = 0; i < falelist.length; i++) {
30                 formData.append(i, falelist[i]);
31             }
32             $.ajax({
33                 url: '../../Ashx/BannerManage.ashx?faction=SaveProdImage',
34                 type: "POST",
35                 data: formData,
36                 cache: false,//不缓存
37                 contentType: false,// jQuery不要去设置Content-Type请求头
38                 processData: false,// jQuery不要去处理发送的数据
39                 success: function (data) {
40                     $("#ImgHidden").val(data.ResultObject[0].AccessoryUrl);
41                     var url = data.ResultObject[0].AccessoryUrl;
42                     var imgPre = document.getElementById('Picture');
43                     imgPre.src = url;
44                     var imgPre_a = document.getElementById('ImgJump');
45                     imgPre_a.href = url;
46                     imgPre.style.display = 'block';
47                 }
48             })
49         })
50     </script>
51 </body>

2，后台代码：

public static string UploadFile()
        {

            var filelist = HttpContext.Current.Request.Files;
            if (filelist.Count == 0)
                return Newtonsoft.Json.JsonConvert.SerializeObject(new { ResultCode = 0, ResultMsg = "上传失败" });
            string NewFiles = DateTime.Now.ToString("yyyyMM") + "ymall";
            List<AccessoryDTO> accessoryList = new List<AccessoryDTO>();
            for (int i = 0; i < filelist.Count; i++)
            {
                var file = filelist[i];

                string suffix = Path.GetExtension(file.FileName);
                string fileName = Guid.NewGuid() + suffix.ToLower();
                //string url = "";

                byte[] buffer = new byte[file.InputStream.Length];
                file.InputStream.Read(buffer, 0, (int)file.InputStream.Length);
                Utility.Net.FtpArgs args = new Utility.Net.FtpArgs()
                {

                    Host = ConfigurationManager.AppSettings["ProductImg:FtpHost2"],
                    Port = Convert.ToInt32(ConfigurationManager.AppSettings["ProductImg:FtpPort2"]),
                    UserName = ConfigurationManager.AppSettings["ProductImg:FtpUserName2"],
                    Userpwd = ConfigurationManager.AppSettings["ProductImg:FtpUserpwd2"],
                    RemoteDir = "/" + NewFiles + "/",
                    RemoteFileName = fileName,
                    UploadData = buffer
                };
                Utility.ReturnMessage rm = Utility.Net.CFTP.Upload(args);
                if (!rm.Success)
                {
                    return Newtonsoft.Json.JsonConvert.SerializeObject(new { ResultCode = 0, ResultObject = accessoryList, ResultMsg = "上传异常" });
                    //continue;
                }
                    

                AccessoryDTO dto = new AccessoryDTO();
                dto.AccessoryFileType = file.ContentType;
                if (dto.AccessoryFileType!= "image/jpeg"&& dto.AccessoryFileType != "image/png") //jpg
                {
                    return Newtonsoft.Json.JsonConvert.SerializeObject(new { ResultCode = 0, ResultObject = accessoryList, ResultMsg = "请上传jpg,png格式！！" });
                }
                dto.AccessoryName = file.FileName;
                dto.AccessorySize = file.ContentLength;
                dto.AccessoryUrl = ConfigurationManager.AppSettings["ProductImg:HttpHost2"] + NewFiles + "/" + fileName;
                dto.Sort = i;
                accessoryList.Add(dto);
            }
            return Newtonsoft.Json.JsonConvert.SerializeObject(new { ResultCode = 1, ResultObject = accessoryList, ResultMsg = "上传成功！！" });
        }

3,web配置

1     <!--图上传FTP路径-->
2     <add key="ProductImg:HttpHost2" value="ftp://192.168.10.32:99/" />
3     <add key="ProductImg:FtpHost2" value="192.168.10.32" />
4     <add key="ProductImg:FtpPort2" value="99" />
5     <add key="ProductImg:FtpUserName2" value="" />
6     <add key="ProductImg:FtpUserpwd2" value="" />

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