C#实现FTP上传文件的方法

1.通过用FTP进行上传文件，首先要实现建立FTP连接，一般建立FTP连接，需要知道FTP配置有关的信息。一般要在Bean中建立一个ServiceFileInfo.cs文件进行记录，一般需要FTP地址、登录用户名和登录密码。然后通过其他页面进行访问读取。代码样式如下：

class ServiceFileInfo
    {
        // service1
        public static string txtFilePath = @"ftp://12.128.128.01/FileName/";
        //userid & password
        public static string txtUID = "username";
        public static string txtPWD = "password";
    }

2.通过主方法读取Bean文件下面的的ServiceFileInfo.cs文件的信息，去实现建立FTP连接。这里还需要清楚的知道你上传文件的路径(Path)和文件名称(FileName)。根据这些信息主方法去调用写着Bean中的另外一个ftpOperation.cs 文件(这个.cs文件中主要写一些关于FTP的操作方法)，进行FTP访问操作。

• 主方法调用FTP操作代码

ExecutionResult exeRes = this.ftpOperation.UploadFile(textFilePath, txtUID, txtPWD, Path + "/" + FileName + ".txt");//.txt为文件的后缀名

•  Bean文件中ftpOperation.cs文件关于FTP操作的方法

public ExecutionResult UploadFile(string vIMSPath, string vUID, string vPassword, string vLocalPath)
        {
            ExecutionResult result = new ExecutionResult();
            result = connectState(vIMSPath, vUID, vPassword, vLocalPath);//调用下面代码方法
            if (result.Status)
            {
                File.Delete(vLocalPath);
            }
            return result;
        }

connectState()方法

public static ExecutionResult connectState(string vIMSPath, string vUID, string vPassword, string fileName)
        {
            string operater = "";
            bool Flag = false;
            ExecutionResult result;
            result = new ExecutionResult();
            lock (lockObj)
            {
                try
                {
                    operater = "Connet to FTP";
                    FTPOperation ftp = new FTPOperation(new Uri(vIMSPath), vUID, vPassword);
                    operater = "Upload file";
                    Flag = ftp.UploadFile(fileName, Path.GetFileName(fileName), true);
                    if (Flag)
                    {
                        result.Status = true;
                        result.Message = "Send to server OK";
                    }
                }
                catch (Exception ex)
                {
                    result.Status = false;
                    result.Anything = "Mail";
                    result.Message = operater + ":" + ex.Message;
                }
            }
            return result;
        }

• UploadFile()方法

public bool UploadFile(string LocalFullPath, string RemoteFileName, bool OverWriteRemoteFile)
        {
            bool result;
            try
            {
                bool flag = !this.IsValidFileChars(RemoteFileName) || !this.IsValidFileChars(Path.GetFileName(LocalFullPath)) || !this.IsValidPathChars(Path.GetDirectoryName(LocalFullPath));
                if (flag)
                {
                    throw new Exception("非法文件名或目录名!");
                }
                bool flag2 = File.Exists(LocalFullPath);
                if (!flag2)
                {
                    throw new Exception("本地文件不存在!");
                }
                FileStream fileStream = new FileStream(LocalFullPath, FileMode.Open, FileAccess.Read);
                byte[] array = new byte[fileStream.Length];
                fileStream.Read(array, 0, (int)fileStream.Length);
                fileStream.Close();
                result = this.UploadFile(array, RemoteFileName, OverWriteRemoteFile);
            }
            catch (Exception ex)
            {
                this.ErrorMsg = ex.ToString();
                throw ex;
            }
            return result;
        }



public bool UploadFile(byte[] FileBytes, string RemoteFileName)
        {
            bool flag = !this.IsValidFileChars(RemoteFileName);
            if (flag)
            {
                throw new Exception("非法文件名或目录名!");
            }
            return this.UploadFile(FileBytes, RemoteFileName, false);
        }


public bool UploadFile(byte[] FileBytes, string RemoteFileName, bool OverWriteRemoteFile)
        {
            bool result;
            try
            {
                bool flag = !this.IsValidFileChars(RemoteFileName);
                if (flag)
                {
                    throw new Exception("非法文件名！");
                }
                bool flag2 = !OverWriteRemoteFile && this.FileExist(RemoteFileName);
                if (flag2)
                {
                    throw new Exception("FTP服务上面已经存在同名文件！");
                }
                this.Response = this.Open(new Uri(this.Uri.ToString() + RemoteFileName), "STOR");
                Stream requestStream = this.Request.GetRequestStream();
                MemoryStream memoryStream = new MemoryStream(FileBytes);
                byte[] array = new byte[1024];
                int num = 0;
                for (;;)
                {
                    int num2 = memoryStream.Read(array, 0, array.Length);
                    bool flag3 = num2 == 0;
                    if (flag3)
                    {
                        break;
                    }
                    num += num2;
                    requestStream.Write(array, 0, num2);
                }
                requestStream.Close();
                this.Response = (FtpWebResponse)this.Request.GetResponse();
                memoryStream.Close();
                memoryStream.Dispose();
                FileBytes = null;
                result = true;
            }
            catch (Exception ex)
            {
                this.ErrorMsg = ex.ToString();
                throw ex;
            }
            return result;
        }

到此这篇关于C#实现FTP上传文件的文章就介绍到这了。希望对大家的学习有所帮助，也希望大家多多支持自由互联。