FTP跨服务器上传图片（二）

来源：互联网发布：java 数组接收 split 编辑：程序博客网时间：2024/06/05 07:07

FTP跨服务器上传图片--FtpWeb类

1、创建FtpWeb.cs 文件

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Net;using System.Web;namespace DeYangService{    public class FtpWeb    {        string ftpServerIP;        string ftpRemotePath;        string ftpUserID;        string ftpPassword;        string ftpURI;        /// <summary>        /// 连接FTP        /// </summary>        /// <param name="FtpServerIP">FTP连接地址</param>        /// <param name="FtpRemotePath">指定FTP连接成功后的当前目录, 如果不指定即默认为根目录</param>        /// <param name="FtpUserID">用户名</param>        /// <param name="FtpPassword">密码</param>        public FtpWeb(string FtpServerIP, string FtpRemotePath, string FtpUserID, string FtpPassword)        {            ftpServerIP = FtpServerIP;            ftpRemotePath = FtpRemotePath;            ftpUserID = FtpUserID;            ftpPassword = FtpPassword;            ftpURI = "ftp://" + ftpServerIP + "/" + ftpRemotePath + "/";        }        private static bool ftpIsExistsFile(string dirName, string ftpHostIP, string username, string password)        {            bool flag = true;            try            {                string uri = "ftp://" + ftpHostIP + "/" + dirName;                System.Net.FtpWebRequest ftp = GetRequest(uri, username, password);                ftp.Method = WebRequestMethods.Ftp.ListDirectory;                FtpWebResponse response = (FtpWebResponse)ftp.GetResponse();                response.Close();            }            catch (Exception)            {                flag = false;            }            return flag;        }        /// <summary>        /// 创建文件夹        /// </summary>        /// <param name="dirName"></param>        public void MakeDir(string dirName)        {            FtpWebRequest reqFTP;            try            {                // dirName = name of the directory to create.                reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + dirName));                reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;                reqFTP.UseBinary = true;                reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();                Stream ftpStream = response.GetResponseStream();                ftpStream.Close();                response.Close();            }            catch (Exception ex)            {                            }        }        /// <summary>        /// 上传文件        /// </summary>        /// <param name="httpfile">需要上传的文件</param>        /// <param name="targetDir">目标路径</param>        /// <param name="ext">文件类型</param>        /// <param name="hostname">ftp地址</param>        /// <param name="username">ftp用户名</param>        /// <param name="password">ftp密码</param>        /// <param name="ismakethumbnail">是否需要截图</param>        /// <param name="isappmakethumbnail">是否需要截成app图</param>        /// <summary>        public static void UploadFile(HttpPostedFile httpfile, string targetDir, string ext,string hostname, string username, string password,bool ismakethumbnail,bool isappmakethumbnail)        {            string URI = "FTP://" + hostname + "/" + targetDir+ ext;            System.Net.FtpWebRequest ftp = GetRequest(URI, username, password);            //设置FTP命令 设置所要执行的FTP命令，            ftp.Method = System.Net.WebRequestMethods.Ftp.UploadFile;            //指定文件传输的数据类型            ftp.UseBinary = true;            ftp.UsePassive = true;            //告诉ftp文件大小            ftp.ContentLength = httpfile.ContentLength;            //缓冲大小设置为2KB 1M             const int BufferSize = 10240;            byte[] content = new byte[BufferSize - 1 + 1];            int dataRead;            //打开一个文件流 (System.IO.FileStream) 去读上传的文件            using (Stream fs = httpfile.InputStream)            {                                    //把上传的文件写入流                    using (Stream rs = ftp.GetRequestStream())                    {                        do                        {                            //每次读文件流的2KB                            dataRead = fs.Read(content, 0, BufferSize);                            rs.Write(content, 0, dataRead);                        } while (!(dataRead < BufferSize));                        rs.Close();                    }                #region 截图                if (ismakethumbnail)                {                    //小图 120*120                       byte[] datamin = ThumbnailImage.MakeThumbnail(fs);                    MemoryStream m = new MemoryStream(datamin);                    UploadThumbnail(m, targetDir + "min", ext, hostname, username, password);                    m.Close();                    ////中图 240*180                    byte[] datamid = ThumbnailImage.MakeImage(fs, 240, 180);                    m = new MemoryStream(datamid);                    UploadThumbnail(m, targetDir + "mid", ext, hostname, username, password);                    m.Close();                }                if (isappmakethumbnail)                {                    ////手机适配的尺寸  1张图：400*100  多张图时：100*80                    byte[] dataAppmid = ThumbnailImage.MakeImage(fs, 400, 100);                    MemoryStream m = new MemoryStream(dataAppmid);                    UploadThumbnail(m, targetDir + "appmid", ext, hostname, username, password);                    m.Close();                    ////手机适配的尺寸  1张图：400*100  多张图时：100*80                    byte[] dataAppmin = ThumbnailImage.MakeImage(fs, 100, 80);                    m = new MemoryStream(dataAppmin);                    UploadThumbnail(m, targetDir + "appmin", ext, hostname, username, password);                    m.Close();                }                #endregion 截图                fs.Close();            }        }        /// <summary>        /// 上传缩略图        /// </summary>        /// <param name="httpfile">需要上传的文件</param>        /// <param name="targetDir">目标路径</param>        /// <param name="ext">文件类型</param>        /// <param name="hostname"> ftp地址</param>        /// <param name="username">ftp用户名</param>        /// <param name="password">ftp密码</param>        public static void UploadThumbnail(MemoryStream m, string targetDir, string ext, string hostname, string username, string password)        {            string URI = "FTP://" + hostname + "/" + targetDir + ext;            System.Net.FtpWebRequest ftp = GetRequest(URI, username, password);            //设置FTP命令 设置所要执行的FTP命令，            ftp.Method = System.Net.WebRequestMethods.Ftp.UploadFile;            //指定文件传输的数据类型            ftp.UseBinary = true;            ftp.UsePassive = true;            //告诉ftp文件大小            ftp.ContentLength = m.Length;            //缓冲大小设置为2KB 1M             const int BufferSize = 10240;            byte[] content = new byte[BufferSize - 1 + 1];            int dataRead;            //把上传的文件写入流            using (Stream rs = ftp.GetRequestStream())            {                do                {                    //每次读文件流的2KB                    dataRead = m.Read(content, 0, BufferSize);                    rs.Write(content, 0, dataRead);                } while (!(dataRead < BufferSize));                rs.Close();            }            m.Close();        }        ////        /// <summary>          /// 得到ftp对象          /// </summary>          /// <param name="URI">ftp地址</param>          /// <param name="username">ftp用户名</param>          /// <param name="password">ftp密码</param>          /// <returns>返回ftp对象</returns>          private static System.Net.FtpWebRequest GetRequest(string URI, string username, string password)        {            //根据服务器信息FtpWebRequest创建类的对象              FtpWebRequest result = (FtpWebRequest)FtpWebRequest.Create(URI);            //提供身份验证信息              result.Credentials = new System.Net.NetworkCredential(username, password);            //result.Credentials = new System.Net.NetworkCredential();              //设置请求完成之后是否保持到FTP服务器的控制连接，默认值为true              result.KeepAlive = false;            return result;        }    }}

2、配置web.config 文件

    <!--fpt 服务器用户名及账户及主机地址-->    <add key="HOSTNAME" value="192.168.0.190"/>    <add key="USER_NAME" value="lenovo"/>    <add key="PASSWORD" value="123456"/>

3、调用方法上传图片文件至图片服务器

注释：多张图片上传过程。

string fexts = "";string filepaths = "";         //file1,file2,file3 //已上传图片if (context.Request.Files.Count > 0){    int fcount = context.Request.Files.Count;   for (int i = 0; i < fcount; i++)                            {                                string newpath = CloudTool.GetSavePath();// imgSavePath.GetPerImgSavePath(uid);                                string code = DateTime.Now.ToString("yyyyMMddhhmmssff");                                string[] fileNameArray = context.Request.Files[i].FileName.Split(new char[] { '/' });                                string fileName = System.IO.Path.GetFileName(context.Request.Files[i].FileName);                                string ext = fileName.Substring(fileName.LastIndexOf('.')).ToLower();                                string sourpath = newpath + code + ext;//fileNameArray[fileNameArray.Length - 1];                                string minpath = newpath + code + "min" + ext;                                string midpath = newpath + code + "mid" + ext;                                string Appmidpath = newpath + code + "appmid" + ext;                                string Appminpath = newpath + code + "appmin" + ext;                                txtareas += "图片";                                string filepath = newpath + code;                                filepaths += filepath.Substring(3).Replace("\\", "\\\\");//保存文件路径                                filepath = filepath + ext;                                                               fexts += ext;                                if (i < context.Request.Files.Count - 1)                                {                                    filepaths += "`";                                    fexts += "`";                                    txtareas += "`";                                }                                #region 保存到图片服务器                                //1)图片服务器配置信息 ip、账户、密码                                string hostname = CloudTool.GetAppSettingByKey("HOSTNAME");                                string username = CloudTool.GetAppSettingByKey("USER_NAME");                                string password = CloudTool.GetAppSettingByKey("PASSWORD");                                //2)设置图片文件的名称及存放地址                                DateTime dttime = DateTime.Now;                                string year = dttime.Year.ToString();                                string month = dttime.Month.ToString();                                string day = dttime.Day.ToString();                                string hour = dttime.Hour.ToString();                                var folder = year + "\\" + month + "\\" + day + "\\" + hour + "\\";                                string dirName = folder + code;                                FtpWeb ftpweb1 = new FtpWeb(hostname, "", username, password);                                //3)创建文件夹目录                                ftpweb1.MakeDir(folder);                                //4)上传图片                                FtpWeb.UploadFile(context.Request.Files[i], dirName, ext, hostname, username, password, true,true);                                #endregion                            }                        }                       bool flag = false;//将图片地址保存到数据库  --自己编写//flag = zkDAL.createzkimg(nid, uid, txtname, zkey, typeid, zflag, txtcontent, txtauthor, filepaths, fexts, txtareas, tagkeys);

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