331 lines
13 KiB
C#
331 lines
13 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Net;
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using System.IO;
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using System.Threading;
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using Models;
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using Microsoft.AspNetCore.Http;
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namespace COMMON
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{
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/// <summary>
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/// ftp 帮助类
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/// </summary>
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public static class FtpHelper
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{
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//基本设置
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static private string path => ConfigEntity.Instance.FTPPATH; //目标路径
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static private string ftpip => ConfigEntity.Instance.FTPIP; //ftp IP地址
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static private string username => ConfigEntity.Instance.FTPUSERNAME; //ftp用户名
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static private string password => ConfigEntity.Instance.FTPPASSWORD; //ftp密码
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/// <summary>
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/// 获取ftp上面的文件和文件夹
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/// </summary>
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/// <param name="dir"></param>
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/// <returns></returns>
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public static string[] GetFileList(string dir)
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{
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StringBuilder result = new StringBuilder();
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FtpWebRequest request;
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request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpip + Path.Combine(path, dir)));
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request.UseBinary = true;
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request.Credentials = new NetworkCredential(username, password);//设置用户名和密码
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request.Method = WebRequestMethods.Ftp.ListDirectory;
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request.UseBinary = true;
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WebResponse response = request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream());
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string line = reader.ReadLine();
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while (line != null)
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{
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result.Append(line);
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result.Append("\n");
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line = reader.ReadLine();
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}
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// to remove the trailing '\n'
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result.Remove(result.ToString().LastIndexOf('\n'), 1);
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reader.Close();
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response.Close();
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return result.ToString().Split('\n');
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}
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/// <summary>
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/// 获取文件大小
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/// </summary>
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/// <param name="file">ip服务器下的相对路径</param>
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/// <returns>文件大小</returns>
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public static int GetFileSize(string file)
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{
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try
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{
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StringBuilder result = new StringBuilder();
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FtpWebRequest request;
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string URL = ftpip + path +file.Replace("\\", "/");
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request = (FtpWebRequest)FtpWebRequest.Create(new Uri(URL));
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request.UseBinary = true;
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request.Credentials = new NetworkCredential(username, password);//设置用户名和密码
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request.Method = WebRequestMethods.Ftp.GetFileSize;
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int dataLength = (int)request.GetResponse().ContentLength;
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return dataLength;
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}
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catch (Exception)
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{
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return -1;
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}
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}
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/// <summary>
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/// 文件上传
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/// </summary>
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/// <param name="objPath">目标文件夹：服务器下的相对路径 不填为根目录</param>
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/// <param name="fs">目标文件夹：服务器下的相对路径 不填为根目录</param>
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/// <param name="newname">目标文件夹：服务器下的相对路径 不填为根目录</param>
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public static bool FileUpLoad(FileStream fs, string newname, string objPath = "")
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{
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string url = ftpip + path;
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if (objPath != "")
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url += objPath + "/";
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try
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{
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FtpWebRequest reqFTP = null;
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//待上传的文件 （全路径）
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try
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{
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using (fs)
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{
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long length = fs.Length;
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reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(url + newname));
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//设置连接到FTP的帐号密码
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reqFTP.Credentials = new NetworkCredential(username, password);
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//设置请求完成后是否保持连接
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reqFTP.KeepAlive = false;
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//指定执行命令
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reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
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//指定数据传输类型
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reqFTP.UseBinary = true;
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using (Stream stream = reqFTP.GetRequestStream())
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{
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//设置缓冲大小
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int BufferLength = 5120;
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byte[] b = new byte[BufferLength];
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int i;
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while ((i = fs.Read(b, 0, BufferLength)) > 0)
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{
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stream.Write(b, 0, i);
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}
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Console.WriteLine("上传文件成功");
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}
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("上传文件失败错误为" + ex.Message);
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return false;
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}
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finally
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{
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("上传文件失败错误为" + ex.Message);
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return false;
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}
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finally
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{
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}
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return true;
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}
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/// <summary>
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/// 文件上传
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/// </summary>
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/// <param name="filePath">原路径（绝对路径）包括文件名</param>
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/// <param name="objPath">目标文件夹：服务器下的相对路径 不填为根目录</param>
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/// <param name="newname">目标文件夹：服务器下的相对路径 不填为根目录</param>
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public static bool FileUpLoad(string filePath,string newname, string objPath = "")
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{
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string url = ftpip + path;
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if (objPath != "")
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url += objPath + "/";
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FtpWebRequest reqFTP = null;
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//待上传的文件 （全路径）
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FileInfo fileInfo = new FileInfo(filePath);
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using (FileStream fs = fileInfo.OpenRead())
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{
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long length = fs.Length;
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reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(url + newname));
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//设置连接到FTP的帐号密码
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reqFTP.Credentials = new NetworkCredential(username, password);
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//设置请求完成后是否保持连接
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reqFTP.KeepAlive = false;
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//指定执行命令
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reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
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//指定数据传输类型
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reqFTP.UseBinary = true;
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using (Stream stream = reqFTP.GetRequestStream())
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{
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//设置缓冲大小
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int BufferLength = 5120;
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byte[] b = new byte[BufferLength];
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int i;
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while ((i = fs.Read(b, 0, BufferLength)) > 0)
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{
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stream.Write(b, 0, i);
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}
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Console.WriteLine("上传文件成功");
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}
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}
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return true;
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}
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/// <summary>
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/// 删除文件
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/// </summary>
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/// <param name="fileName">服务器下的相对路径 包括文件名</param>
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public static bool DeleteFileName(string fileName)
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{
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string URL = ftpip + path+ fileName.Replace("\\", "/");
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FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(URL));
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// 指定数据传输类型
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reqFTP.UseBinary = true;
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// ftp用户名和密码
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reqFTP.Credentials = new NetworkCredential(username, password);
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// 默认为true，连接不会被关闭
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// 在一个命令之后被执行
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reqFTP.KeepAlive = false;
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// 指定执行什么命令
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reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
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FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
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response.Close();
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return true;
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}
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/// <summary>
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/// 新建目录 上一级必须先存在
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/// </summary>
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/// <param name="dirName">服务器下的相对路径</param>
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public static void MakeDir(string dirName)
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{
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FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpip +path+dirName));
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// 指定数据传输类型
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reqFTP.UseBinary = true;
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// ftp用户名和密码
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reqFTP.Credentials = new NetworkCredential(username, password);
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reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
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FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
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response.Close();
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}
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/// <summary>
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/// 删除目录 上一级必须先存在
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/// </summary>
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/// <param name="dirName">服务器下的相对路径</param>
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public static void DelDir(string dirName)
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{
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FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpip + Path.Combine(path, dirName)));
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// ftp用户名和密码
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reqFTP.Credentials = new NetworkCredential(username, password);
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reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
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FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
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response.Close();
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}
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/// <summary>
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/// 从ftp服务器上获得文件夹列表
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/// </summary>
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/// <param name="RequedstPath">服务器下的相对路径</param>
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/// <returns></returns>
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public static List<string> GetDirctory(string RequedstPath)
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{
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List<string> strs = new List<string>();
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FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpip + Path.Combine(path, RequedstPath)));
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// ftp用户名和密码
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reqFTP.Credentials = new NetworkCredential(username, password);
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reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
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WebResponse response = reqFTP.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream());//中文文件名
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string line = reader.ReadLine();
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while (line != null)
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{
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if (line.Contains("<DIR>"))
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{
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string msg = line.Substring(line.LastIndexOf("<DIR>") + 5).Trim();
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strs.Add(msg);
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}
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line = reader.ReadLine();
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}
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reader.Close();
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response.Close();
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return strs;
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}
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/// <summary>
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/// 从ftp服务器上获得文件列表
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/// </summary>
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/// <param name="RequedstPath">服务器下的相对路径</param>
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/// <returns></returns>
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public static List<string> GetFile(string RequedstPath)
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{
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List<string> strs = new List<string>();
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FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpip + Path.Combine(path, RequedstPath)));
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// ftp用户名和密码
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reqFTP.Credentials = new NetworkCredential(username, password);
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reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
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WebResponse response = reqFTP.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream());//中文文件名
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string line = reader.ReadLine();
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while (line != null)
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{
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if (!line.Contains("<DIR>"))
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{
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string msg = line.Substring(39).Trim();
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strs.Add(msg);
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}
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line = reader.ReadLine();
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}
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reader.Close();
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response.Close();
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return strs;
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}
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}
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}
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