/// <summary>
/// 将内存流输出到文件
/// </summary>
/// <param name="FileName">文件名</param>
/// <param name="In">内存流</param>
/// <exception cref="CFileException">
/// 写入失败触发返回 ExceptionCode.FileReadFail异常
/// </exception>
public static void WriteStream(String FileName, MemoryStream In)
{
bool FileOpened = false;
FileStream fs = null;
try
{
if (File.Exists(FileName))
{
File.Delete(FileName);
}
fs = new FileStream(FileName, FileMode.CreateNew);
In.WriteTo(fs);
fs.Close();
}
catch (Exception e)
{
if (FileOpened)
{
try
{
fs.Close();
}
catch
{
}
}
CFileException fse = new CFileException(ExceptionCode.FileWriteFail
, String.Format("Write File : {0} Fail!", FileName), e);
fse.Raise();
}
}
/// <summary>
/// 文件读入到字符数组中
/// </summary>
/// <param name="FileName">文件名</param>
/// <param name="buf">输出字符数组</param>
/// <param name="Encode">
/// 编码方式
/// 如 "gb2312" "utf-8"
/// </param>
/// <exception cref="CFileException">
/// 读入失败触发返回 ExceptionCode.FileReadFail异常
/// </exception>
static public void ReadFileToChars(String FileName, out Char[] buf, String Encode)
{
bool FileOpened = false;
FileStream fs = null;
buf = null;
try
{
fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
CStream.ReadStreamToChars(fs, out buf, Encode);
fs.Close();
}
catch (Exception e)
{
if (FileOpened)
{
try
{
fs.Close();
}
catch
{
}
}
CFileException fse = new CFileException(ExceptionCode.FileReadFail
, String.Format("Read File : {0} Fail!", FileName), e);
fse.Raise();
}
}
/// <summary>
/// 将文件读入到一个String对象中
/// </summary>
/// <param name="FileName">文件名</param>
/// <param name="Encode">编码方式</param>
/// <returns>String 对象</returns>
/// <exception cref="CFileException">
/// 读入失败触发返回 ExceptionCode.FileReadFail异常
/// </exception>
static public String ReadFileToString(String FileName, String Encode)
{
bool FileOpened = false;
FileStream fs = null;
String str;
try
{
fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
CStream.ReadStreamToString(fs, out str, Encode);
fs.Close();
return(str);
}
catch (Exception e)
{
if (FileOpened)
{
try
{
fs.Close();
}
catch
{
}
}
CFileException fse = new CFileException(ExceptionCode.FileReadFail
, String.Format("Read File : {0} Fail!", FileName), e);
fse.Raise();
return(null);
}
}
/// <summary>
/// 把文件读取到内存流中
/// </summary>
/// <param name="FileName">文件名</param>
/// <returns>内存流</returns>
/// <exception cref="CFileException">
/// 读入失败触发返回 ExceptionCode.FileReadFail异常
/// </exception>
static public MemoryStream ReadFileToStream(String FileName)
{
byte[] Bytes = new byte[32768];
int read = 0;
int offset = 0;
FileStream fs = null;
bool FileOpened = false;
try
{
MemoryStream mem = new MemoryStream();
fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
FileOpened = true;
mem.Position = 0;
while ((read = fs.Read(Bytes, 0, Bytes.Length)) > 0)
{
offset += read;
mem.Write(Bytes, 0, read);
}
fs.Close();
return(mem);
}
catch (Exception e)
{
if (FileOpened)
{
try
{
fs.Close();
}
catch
{
}
}
CFileException fse = new CFileException(ExceptionCode.FileReadFail
, String.Format("Read File : {0} Fail! ErrMsg={1}", FileName, e.Message), e);
fse.Raise();
return(null);
}
}
/// <summary>
/// 向文件末尾追加一行
/// </summary>
/// <param name="str">要追加的字符串</param>
/// <param name="FileName">文件名</param>
/// <param name="Encode">编码方式</param>
/// <exception cref="CFileException">
/// 写入失败触发返回 ExceptionCode.FileReadFail异常
/// </exception>
public static void WriteLine(String FileName, String str, String Encode)
{
TextWriter writer = null;
bool FileOpened = false;
FileStream fs = null;
try
{
if (File.Exists(FileName))
{
fs = new FileStream(FileName, FileMode.Append);
}
else
{
fs = new FileStream(FileName, FileMode.CreateNew);
}
fs.Seek(0, SeekOrigin.End);
writer = new StreamWriter(fs, Encoding.GetEncoding(Encode));
writer.WriteLine(str);
writer.Close();
fs.Close();
}
catch (Exception e)
{
if (FileOpened)
{
try
{
fs.Close();
}
catch
{
}
}
CFileException fse = new CFileException(ExceptionCode.FileWriteFail
, String.Format("Write File : {0} Fail!", FileName), e);
fse.Raise();
}
}