在C# FluentFTP中将FTP文件内容读取为字符串

using System;
using System.IO;
using FluentFTP;

public class FTPFileReader
{
    public static string ReadFileAsString(string ftpHost, string ftpUsername, string ftpPassword, string remoteFilePath)
    {
        // 创建FtpClient对象并设置连接信息
        using (FtpClient client = new FtpClient(ftpHost, ftpUsername, ftpPassword))
        {
            try
            {
                // 连接到FTP服务器
                client.Connect();

                // 下载FTP文件到本地临时文件
                string localTempFile = Path.GetTempFileName();
                client.DownloadFile(remoteFilePath, localTempFile);

                // 读取临时文件内容并存储为字符串
                using (StreamReader reader = new StreamReader(localTempFile))
                {
                    string fileContent = reader.ReadToEnd();
                    return fileContent;
                }
            }
            catch (Exception ex)
            {
                // 处理异常
                Console.WriteLine("Error occurred: " + ex.Message);
                return null;
            }
            finally
            {
                // 断开与FTP服务器的连接
                if (client.IsConnected)
                    client.Disconnect();
            }
        }
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        string ftpHost = "ftp.example.com";
        string ftpUsername = "username";
        string ftpPassword = "password";
        string remoteFilePath = "/path/to/ftp/file.txt";

        string fileContent = FTPFileReader.ReadFileAsString(ftpHost, ftpUsername, ftpPassword, remoteFilePath);
        if (fileContent != null)
            Console.WriteLine("File content: " + fileContent);
    }
}