最近在写壁纸远程更换程序，每次教师机开机，先通过程序（目前通过FTP方式GET文件）下载配置文件，比较配置文件中信息，根据信息选择下载壁纸等进行更换。
ini读取、写入相关代码：
[DllImport("kernel32.dll")]
private static extern long WritePrivateProfileString(string section,string key,string val,string filePath);//返回值0写入成功，参数1(section)写入ini文件的某个小节名称，参数2(key)上面section下某个项的键名(不区分大小写)，参数(val)上面key对应的value，参数4（filePath)ini的文件名
[DllImport("kernel32.dll")]
private static extern long GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);//参数3（def)当指定信息未找到，则返回def内容，参数4（retVal（字符缓冲区）,参数4（size)字符缓冲区大小
壁纸更换调用系统API：
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern int SystemParametersInfo(int uAction, int uParam, string lpvParam, int fuWinIni);
开启其他进程：
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo(Application.StartupPath + "\\" + batFile.ToString());
startInfo.UseShellExecute = true;//使用系统环境变量，貌似必须设置为True，下条命令才能使用，否则隐藏窗口无效
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;//设置窗口为隐藏
System.Diagnostics.Process.Start(startInfo);
FTP上传下载，使用了一个网友写的类，找不到出处了。
class FtpUpDown
{
string ftpServerIP;//服务器ip地址
string ftpUserID;//用户名
string ftpPassword;//密码
FtpWebRequest reqFTP;
private void Connect(String path)//连接ftp
{
// 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);
}
public FtpUpDown(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'), 1);
reader.Close();
response.Close();
return result.ToString().Split('\n');
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
downloadFiles = null;
return downloadFiles;
}
}
public string[] GetFileList(string path)//上面的代码示例了如何从ftp服务器上获得文件列表
{
return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectory);
}
public string[] GetFileList()//上面的代码示例了如何从ftp服务器上获得文件列表
{
return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectory);
}
public void Upload(string filename) //上面的代码实现了从ftp服务器上载文件的功能
{
FileInfo fileInf = new FileInfo(filename);
string uri = "ftp://" + 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)
{
MessageBox.Show(ex.Message, "Upload Error");
}
}
public bool Download(string filePath, string fileName, bool fileCover, out string errorinfo)////上面的代码实现了从ftp服务器下载文件的功能
{
try
{
String onlyFileName = Path.GetFileName(fileName);
string newFileName = filePath + "\\" + onlyFileName;
if (File.Exists(newFileName))
{
if (fileCover == true)
{
File.Delete(newFileName);
}
else
{
errorinfo = string.Format("本地文件{0}已存在,无法下载", newFileName);
return false;
}
}
string url = "ftp://" + ftpServerIP + "/" + fileName;
Connect(url);//连接
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
long cl = response.ContentLength;
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;
}
}
//删除文件
public void DeleteFileName(string fileName)
{
try
{
FileInfo fileInf = new FileInfo(fileName);
string uri = "ftp://" + 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.DeleteFile;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "删除错误");
}
}
//创建目录
public void MakeDir(string dirName)
{
try
{
string uri = "ftp://" + ftpServerIP + "/" + dirName;
Connect(uri);//连接
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
//删除目录
public void delDir(string dirName)
{
try
{
string uri = "ftp://" + ftpServerIP + "/" + dirName;
Connect(uri);//连接
reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
//获得文件大小
public long GetFileSize(string filename)
{
long fileSize = 0;
try
{
FileInfo fileInf = new FileInfo(filename);
string uri = "ftp://" + 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)
{
MessageBox.Show(ex.Message);
}
return fileSize;
}
//文件改名
public void Rename(string currentFilename, string newFilename)
{
try
{
FileInfo fileInf = new FileInfo(currentFilename);
string uri = "ftp://" + 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)
{
MessageBox.Show(ex.Message);
}
}
//获得文件明晰
public string[] GetFilesDetailList()
{
return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectoryDetails);
}
//获得文件明晰
public string[] GetFilesDetailList(string path)
{
return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectoryDetails);
}
}
利用DES对字符串进行加密（以后使用）:
string DESkey = "xxxxxxxx";//密钥长度为64位二进制，转化为字符为8个字符
string DESEncryption(string sourceString, string key)
{
byte[] keyBytes = Encoding.UTF8.GetBytes(key);
byte[] keyIV = keyBytes;
byte[] inputByteArray = Encoding.UTF8.GetBytes(sourceString);
DESCryptoServiceProvider desProvider = new DESCryptoServiceProvider();
MemoryStream memStream = new MemoryStream();
CryptoStream crypStream = new CryptoStream(memStream, desProvider.CreateEncryptor(keyBytes, keyIV), CryptoStreamMode.Write);
crypStream.Write(inputByteArray, 0, inputByteArray.Length);
crypStream.FlushFinalBlock();
return Convert.ToBase64String(memStream.ToArray());
}
/*DES字符串解密函数*/
string DESDecrypt(string encryptString, string key)
{
byte[] keyBytes = Encoding.UTF8.GetBytes(key);
byte[] keyIV = keyBytes;
byte[] inputByteArray = Convert.FromBase64String(encryptString);
DESCryptoServiceProvider desProvider = new DESCryptoServiceProvider();
MemoryStream memStream = new MemoryStream();
CryptoStream crypStream = new CryptoStream(memStream, desProvider.CreateDecryptor(keyBytes, keyIV), CryptoStreamMode.Write);
crypStream.Write(inputByteArray, 0, inputByteArray.Length);
crypStream.FlushFinalBlock();
return Encoding.UTF8.GetString(memStream.ToArray());
}
类似的，利用FtpUpDown Class写了一个图形界面的壁纸管理上传程序。
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