C#中数据安全 过滤盒转换替换
public class DataSecurity
{
protected DataSecurity()
{
}
public static string ConvertToJavaScript(string str)
{
str = str.Replace(@"\", @"\\");
str = str.Replace("\n", @"\n");
str = str.Replace("\r", @"\r");
str = str.Replace("\"", "\\\"");
return str;
}
/// <summary>
/// 检查是否含有非法字符
/// </summary>
/// <param name="str">要检查的字符串</param>
/// <returns></returns>
public static bool ChkBadChar(string str)
{
bool result = false;
if (string.IsNullOrEmpty(str))
return result;
string strBadChar, tempChar;
string[] arrBadChar;
strBadChar = "@@,+,',--,%,^,&,?,(,),<,>,[,],{,},/,\\,;,:,\",\"\"";
arrBadChar = StringHelper.SplitString(strBadChar, ",");
tempChar = str;
for (int i = 0; i < arrBadChar.Length; i++)
{
if (tempChar.IndexOf(arrBadChar[i]) >= 0)
result = true;
}
return result;
}
/// <summary>
/// 过滤非法字符
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string ReplaceBadChar(string str)
{
if (string.IsNullOrEmpty(str))
return "";
string strBadChar, tempChar;
string[] arrBadChar;
strBadChar = "@@,+,',~,--,%,^,&,?,(,),<,>,[,],{,},/,\\,;,:,\",\"\"";
arrBadChar = StringHelper.SplitString(strBadChar, ",");
tempChar = str;
for (int i = 0; i < arrBadChar.Length; i++)
{
if (arrBadChar[i].Length > 0)
tempChar = tempChar.Replace(arrBadChar[i], "");
}
return tempChar;