C#实现FTP上传文件的方法
时间：2023-01-17 12:46:25|栏目：.NET代码|点击： 次
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;
}
