.NET Ftp查看图片

其实FTP查看图片很简单,首先我们要根据用户名，密码，还有服务器地址登录上ftp服务器。
然后把前端对应显示图片名称传到后台即可。我前端显示图片是采用的easyui弹框，其实只需一个image标签即可。
如果代码：

<div id="dlg">
    <img src="" id="simg" />
</div>

//js代码
 function OclickAttachmentFile() {
        $('#dlg').dialog({  
            title: '签证预览',  
            width: 800,  
            height:650,  
            resizable:true,  
            closed: false,  
            cache: false,  
            modal: true  
        });  
        var img = new Image();
        $(img).bind("load", function () {
            $("#simg").attr("src", this.src);
        });
        img.src = "/Common/file/GetFileUpload?fillName=" +
            '@Model.ErpPoMasterExtModel.DeliveryVoucherOriginName';
    }

　//<summary>
        //获取文件
        //</summary>
        //<param name="fillName">图片名称</param>
        //<returns>图片名称</returns>
        public FileResult GetFileUpload(string fillName)
        {
            string usercConfig = ScmConfig.CusReceiptFtpUser; //服务器用户名
            string pwdcConfig = ScmConfig.CusReceiptFtpPwd; //服务器密码
            string ftpSrccConfig = ScmConfig.CustomerReceiptFtp; //服务器地址
            FtpFileBase ftpFileBase = new FtpFileBase(usercConfig, pwdcConfig);

            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpSrccConfig + fillName);
            request.Method = WebRequestMethods.Ftp.DownloadFile;

            // This example assumes the FTP site uses anonymous logon.  
            request.Credentials = new NetworkCredential(usercConfig, pwdcConfig);

            FtpWebResponse response = (FtpWebResponse)request.GetResponse();

            Stream responseStream = response.GetResponseStream();

            return File(responseStream, "image/jpeg");

        }