ASP.net：Ftp操作-----FtpWebRequest

来源：互联网发布：oracle数据库日志查看编辑：程序博客网时间：2024/04/29 00:37

项目用到就贴了下来：

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net;
using System.Web;
using SSI.Application.Log;
using System.Configuration;

namespace Tctax.External.Web.Upload
{
    public class FtpClass
    {
        string ftpServerIP;
        string ftpUserID;
        string ftpPassword;
        FtpWebRequest reqFTP;

        /// <summary>
        /// 连接ftp
        /// </summary>
        /// <param name="path"></param>
        private void Connect(String path)
        {
            // 根据uri创建FtpWebRequest对象
            reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));

// 指定数据传输类型
reqFTP.UseBinary = true;

            // ftp用户名和密码
            reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
        }

        /// <summary>
        /// 获取一个Ftp操作对象：ServerIP、UserID、Password 已初始化
        /// </summary>
        public FtpClass()
        {
            FtpSection ftpSetting = ConfigurationManager.GetSection("ftpinfo") as FtpSection;
            this.ftpServerIP = ftpSetting.FtpServer;
            this.ftpUserID = ftpSetting.User;
            this.ftpPassword = ftpSetting.PassWord;
        }

        /// <summary>
        /// 获取一个Ftp操作对象
        /// </summary>
        /// <param name="ftpServerIP"></param>
        /// <param name="ftpUserID"></param>
        /// <param name="ftpPassword"></param>
        public FtpClass(string ftpServerIP, string ftpUserID, string ftpPassword)
        {
            this.ftpServerIP = ftpServerIP;
            this.ftpUserID = ftpUserID;
            this.ftpPassword = ftpPassword;
        }

        //都调用这个
        private string[] GetFileList(string path, string WRMethods)//上面的代码示例了如何从ftp服务器上获得文件列表
        {
            string[] downloadFiles;
            StringBuilder result = new StringBuilder();
            try
            {
                Connect(path);
                reqFTP.Method = WRMethods;
                WebResponse response = reqFTP.GetResponse();
                StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名
                string line = reader.ReadLine();
                while (line != null)
                {
                    result.Append(line);
                    result.Append("/n");
                    line = reader.ReadLine();
                }

                // to remove the trailing '/n'
                result.Remove(result.ToString().LastIndexOf("/n", StringComparison.OrdinalIgnoreCase), 1);
                reader.Close();
                response.Close();
                return result.ToString().Split('/n');
            }

            catch
            {
                downloadFiles = null;
                return downloadFiles;
                throw;
            }
        }

        /// <summary>
        /// //上面的代码示例了如何从ftp服务器上获得文件列表
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public string[] GetFileList(string path)
        {
            return GetFileList(ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectory);
        }

        /// <summary>
        /// 判断文件是否存在
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        public bool ValidateFileExist(string fileName)
        {
            string[] allFiles = GetFileList(ftpServerIP, WebRequestMethods.Ftp.ListDirectory);
            if (allFiles == null)
            {
                return false;
            }
            string result = Array.Find(allFiles, delegate(String list)
            {
                return list.Equals(fileName) ? true : false;
            });
            if (!string.IsNullOrEmpty(result))
            {
                return true;
            }
            else
                return false;
        }

        /// <summary>
        /// //上面的代码示例了如何从ftp服务器上获得文件列表
        /// </summary>
        /// <returns></returns>
        public string[] GetFileList()
        {
            return GetFileList(ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectory);
        }
        public bool Upload(Stream stream, string filename)
        {
            string uri = ftpServerIP + "/" + filename;
            Connect(uri);//连接
            // 默认为true，连接不会被关闭
            // 在一个命令之后被执行
            reqFTP.KeepAlive = false;
            // 指定执行什么命令
            reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
            reqFTP.ContentLength = stream.Length;
            int buffLength = 2048;
            byte[] buff = new byte[buffLength];
            int contentLen;

            try
            {
                Stream strm = reqFTP.GetRequestStream();
                contentLen = stream.Read(buff, 0, buffLength);
                while (contentLen != 0)
                {
                    strm.Write(buff, 0, contentLen);
                    contentLen = stream.Read(buff, 0, buffLength);
                }
                strm.Close();
                stream.Close();
                return true;
            }
            catch (Exception ex)
            {
                MyLogManager.LogError("UploadFileFtp", "Upload Error" + ex.Message, new object[] { });
            }
            return false;
        }
        /// <summary>
        /// //上面的代码实现了从ftp服务器上载文件的功能
        /// </summary>
        /// <param name="filename"></param>
        public void Upload(string filename)
        {
            FileInfo fileInf = new FileInfo(filename);
            string uri = ftpServerIP + "/" + fileInf.Name;
            Connect(uri);//连接
            // 默认为true，连接不会被关闭
            // 在一个命令之后被执行
            reqFTP.KeepAlive = false;
            // 指定执行什么命令
            reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
            // 上传文件时通知服务器文件的大小
            reqFTP.ContentLength = fileInf.Length;
            // 缓冲大小设置为kb
            int buffLength = 2048;
            byte[] buff = new byte[buffLength];
            int contentLen;
            // 打开一个文件流(System.IO.FileStream) 去读上传的文件
            FileStream fs = fileInf.OpenRead();
            try
            {
                // 把上传的文件写入流
                Stream strm = reqFTP.GetRequestStream();
                // 每次读文件流的kb
                contentLen = fs.Read(buff, 0, buffLength);
                // 流内容没有结束
                while (contentLen != 0)
                {
                    // 把内容从file stream 写入upload stream
                    strm.Write(buff, 0, contentLen);
                    contentLen = fs.Read(buff, 0, buffLength);
                }
                // 关闭两个流
                strm.Close();
                fs.Close();
            }
            catch (Exception ex)
            {
                MyLogManager.LogError("UploadFileFtp", "Upload Error" + ex.Message, new object[] {ex });
            }

}

        /// <summary>
        /// ////上面的代码实现了从ftp服务器下载文件的功能
        /// </summary>
        /// <param name="filePath"></param>
        /// <param name="fileName"></param>
        /// <param name="errorinfo"></param>
        /// <returns></returns>
        public bool Download(string filePath, string fileName, out string errorinfo)

        {
            try
            {
                String onlyFileName = Path.GetFileName(fileName);
                string newFileName = filePath + "//" + onlyFileName;
                if (File.Exists(newFileName))
                {
                    errorinfo = string.Format("本地文件{0}已存在,无法下载", newFileName);
                    return false;
                }
                string url = ftpServerIP + "/" + fileName;
                Connect(url);//连接
                reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                Stream ftpStream = response.GetResponseStream();
                int bufferSize = 2048;
                int readCount;
                byte[] buffer = new byte[bufferSize];
                readCount = ftpStream.Read(buffer, 0, bufferSize);
                FileStream outputStream = new FileStream(newFileName, FileMode.Create);
                while (readCount > 0)
                {
                    outputStream.Write(buffer, 0, readCount);
                    readCount = ftpStream.Read(buffer, 0, bufferSize);
                }
                ftpStream.Close();
                outputStream.Close();
                response.Close();
                errorinfo = "";
                return true;
            }
            catch (Exception ex)
            {
                errorinfo = string.Format("因{0},无法下载", ex.Message);
                return false;
            }

}

        /// <summary>
        /// //删除文件
        /// </summary>
        /// <param name="fileName"></param>
        public bool DeleteFileName(string fileName)
        {
            try
            {
                string uri = ftpServerIP + "/" + fileName;
                Connect(uri);//连接
                // 默认为true，连接不会被关闭
                // 在一个命令之后被执行
                reqFTP.KeepAlive = false;
                // 指定执行什么命令
                reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                response.Close();
                return true;
            }
            catch (Exception ex)
            {
                MyLogManager.LogError("DeleteFileFtp", "Delete Error" + ex.Message, new object[] { ex });
            }
            return false;
        }

        /// <summary>
        /// //创建目录
        /// </summary>
        /// <param name="dirName"></param>
        public void MakeFtpDir(string dirName)
        {
            try
            {
                string uri = ftpServerIP + "/" + dirName;
                Connect(uri);//连接
                reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                response.Close();
            }
            catch (Exception ex)
            {
                MyLogManager.LogError("MakeFtpDir", "Make Ftp Dir Error" + ex.Message, new object[] { ex });
            }
        }

        /// <summary>
        /// //删除目录
        /// </summary>
        /// <param name="dirName"></param>
        public void DelDir(string dirName)
        {
            try
            {
                string uri = ftpServerIP + "/" + dirName;
                Connect(uri);//连接
                reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                response.Close();
            }
            catch (Exception ex)
            {
                MyLogManager.LogError("DelDir", "Del Ftp Dir Error" + ex.Message, new object[] { ex });
            }
        }

        /// <summary>
        /// //获得文件大小
        /// </summary>
        /// <param name="filename"></param>
        /// <returns></returns>
        public long GetFileSize(string filename)
        {
            long fileSize = 0;
            try
            {
                FileInfo fileInf = new FileInfo(filename);
                string uri = ftpServerIP + "/" + fileInf.Name;
                Connect(uri);//连接
                reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                fileSize = response.ContentLength;
                response.Close();
            }
            catch (Exception ex)
            {
                MyLogManager.LogError("GetFileSize", "GetFileSize Error" + ex.Message, new object[] { ex });

            }
            return fileSize;
        }

        /// <summary>
        /// //文件改名
        /// </summary>
        /// <param name="currentFilename"></param>
        /// <param name="newFilename"></param>
        public void Rename(string currentFilename, string newFilename)
        {
            try
            {
                FileInfo fileInf = new FileInfo(currentFilename);
                string uri = ftpServerIP + "/" + fileInf.Name;
                Connect(uri);//连接
                reqFTP.Method = WebRequestMethods.Ftp.Rename;
                reqFTP.RenameTo = newFilename;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                //Stream ftpStream = response.GetResponseStream();
                //ftpStream.Close();
                response.Close();
            }
            catch (Exception ex)
            {
                MyLogManager.LogError("Rename", "Rename Error" + ex.Message, new object[] { ex });
            }
        }

        /// <summary>
        /// //获得文件明晰
        /// </summary>
        /// <returns></returns>
        public string[] GetFilesDetailList()
        {
            return GetFileList(ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectoryDetails);
        }

        /// <summary>
        /// //获得文件明晰
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public string[] GetFilesDetailList(string path)
        {
            return GetFileList(ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectoryDetails);
        }

        /// <summary>
        /// Gets the FTP server IP.
        /// </summary>
        /// <returns></returns>
        public string GetFtpServerIP()
        {
            return ftpServerIP;
        }
    }
}

映射处理：

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net;
using System.Web;
using SSI.Application.Log;
using System.Configuration;

namespace Tctax.External.Web.Upload
{
    public static class FtpUpload
    {
        static FtpClass ftp = new FtpClass();
        //static FtpClass ftp = new FtpClass("ftp://192.168.98.5/", "tctax", "tc0520090126!"); //ftp上传固定地址

        private static FtpSection ftpSetting = ConfigurationManager.GetSection("ftpinfo") as FtpSection;
        public static bool DeleteFileName(string fileName)
        {
            return ftp.DeleteFileName(fileName);
        }

        public static bool UploadFileToFtp(out string filename, HttpPostedFile filepath)
        {
            filename = Guid.NewGuid().ToString() + filepath.FileName.Substring(filepath.FileName.LastIndexOf(".", StringComparison.OrdinalIgnoreCase));
            return ftp.Upload(filepath.InputStream,filename);
        }
        public static FtpSection FtpSection
        {
            get
            {
                return ftpSetting;
            }
        }
        public static bool ValidateFileExist(string fileName)
        {
            return ftp.ValidateFileExist(fileName);
        }

        public static bool UploadFileToFtp(Stream stream, string filename)
        {
            return ftp.Upload(stream, filename);
        }

        public static string GetFtpServerIP()
        {
            return ftp.GetFtpServerIP();
        }
    }

    public class FtpSection : ConfigurationSection
    {
        public FtpSection()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }

        [ConfigurationProperty("ftpServer", DefaultValue = "ftp://", IsRequired = true)]
        public string FtpServer
        {
            get { return (string)this["ftpServer"]; }
            set { this["ftpServer"] = value; }
        }

        [ConfigurationProperty("ftpUser", DefaultValue = "test", IsRequired = true)]
        public string User
        {
            get { return (string)this["ftpUser"]; }
            set { this["ftpUser"] = value; }
        }

        [ConfigurationProperty("ftpPwd", DefaultValue = "test", IsRequired = true)]
        public string PassWord
        {
            get { return (string)this["ftpPwd"]; }
            set { this["ftpPwd"] = value; }
        }

        [ConfigurationProperty("urlMapping", DefaultValue = "", IsRequired = true)]
        public string URL
        {
            get { return (string)this["urlMapping"]; }
            set { this["urlMapping"] = value; }
        }
    }
}

Web.config配置：