/// <summary>
/// 构造函数...
/// </summary>
/// <param name="clientMsg"></param>
/// <param name="msgLever"></param>
/// <param name="innerException"></param>
public APPException(string clientMsg, APPMessageType msgLever, Exception innerException)
: base(clientMsg, innerException)
{
_MsgLever = msgLever;
string msg = clientMsg;
if (innerException != null)
{
string innerMsg = string.Empty;
if (innerException is APPException)
{
APPException appEx = innerException as APPException;
_MsgLever = appEx.MsgLever;
innerMsg = appEx.Message;
}
else
{
try {
getErrMessage(innerException, ref innerMsg);
}
catch { }
}
TraceEx.Write(innerMsg, APPMessageType.SysErrInfo);
if (!string.IsNullOrEmpty(innerException.StackTrace))
{
TraceEx.Write(innerException.StackTrace);
}
}
TraceEx.Write(msg, msgLever);
}
/// <summary>
/// 加密字符窜
/// </summary>
/// <param name="pEncryptedStr"></param>
/// <returns></returns>
public static string EncryptString(string encryptedStr)
{
//des进行加密
DESCryptoServiceProvider desc = new DESCryptoServiceProvider();
//产生key
PasswordDeriveBytes db = new PasswordDeriveBytes(KEY_ENCRYPT, null);
byte[] key = db.GetBytes(8);
//存储加密后的数据
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, desc.CreateEncryptor(key, key), CryptoStreamMode.Write);
//取到密码的字节流
try {
byte[] data = Encoding.UTF8.GetBytes(encryptedStr);
//进行加密
cs.Write(data, 0, data.Length);
cs.FlushFinalBlock();
//取加密后的数据
byte[] res = ms.ToArray();
return(Convert.ToBase64String(res));
}
catch {
TraceEx.Write("字符窜" + encryptedStr + "加密不成功。");
return(null);
}
}
/// <summary>
/// 构造函数...
/// </summary>
/// <param name="pMsg">抛出异常的信息</param>
/// <param name="pMsgLever">异常信息的类型等级</param>
public APPException(string clientMsg, APPMessageType msgLever, string errorCode)
: base(clientMsg)
{
_MsgLever = msgLever;
_ErrorCode = errorCode;
TraceEx.Write(clientMsg, msgLever);
}
/// <summary>
/// 解密字符窜
/// </summary>
/// <param name="pDecryptStr"></param>
/// <returns></returns>
public static string DecryptString(string decryptStr)
{
DESCryptoServiceProvider desc = new DESCryptoServiceProvider();
//产生key
PasswordDeriveBytes db = new PasswordDeriveBytes(KEY_ENCRYPT, null);
byte[] key = db.GetBytes(8);
//存储解密后的数据
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, desc.CreateDecryptor(key, key), CryptoStreamMode.Write);
//取到加密后的数据的字节流，如果是保存到文件
try {
byte[] databytes = Convert.FromBase64String(decryptStr);
//解密数据
cs.Write(databytes, 0, databytes.Length);
cs.FlushFinalBlock();
byte[] res = ms.ToArray();
//返回解密后的数据，这里返回的数据应该和参数pwd的值相同。
return(System.Text.Encoding.UTF8.GetString(res));
}
catch {
TraceEx.Write("字符窜" + decryptStr + "解密不成功。");
return(null);
}
}
