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using
System;using
System.Security.Cryptography;using
System.Text;using
System.Text.RegularExpressions;using
System.Web;using
System.Web.Security;namespace
ZooleeBasic{ public
class ZConvert { /// <summary> /// 替换字符型sql参数中的有问题符号 /// </summary> /// <param name="str"></param> /// <returns></returns> public
static string Killw(string
str) { return
(ZValid.IsNothing(str)) ? ""
: (str.Trim()).Replace("‘", "'"); } /// <summary> /// 替换字符型sql参数中的有问题符号(指定最大长度) /// </summary> /// <param name="str"></param> /// <param name="maxlen">指定最大长度</param> /// <returns></returns> public
static string Killw(string
str, int
maxlen) { string
re = Killw(str); if
(re == "") { return
re; } int
len = re.Length; if
(maxlen > len) { maxlen = len; } return
re.Substring(0, maxlen); } /// <summary> /// 替换数值型sql参数中的有问题符号 /// </summary> /// <param name="str"></param> /// <returns></returns> public
static string Killn(string
str) { return
(str == null
|| !ZValid.IsNumber(str.Trim())) ? "0"
: str.Trim(); } /// <summary> /// Html转义成实体 /// </summary> /// <param name="str">string</param> /// <returns>string</returns> public
static string HtmlEncode(string
str) { StringBuilder sb = new
StringBuilder(str); sb = sb.Replace("&", "&"); sb = sb.Replace("\‘", "‘"); sb = sb.Replace("\"", """); sb = sb.Replace(" ", " "); sb = sb.Replace("<", "<"); sb = sb.Replace(">", ">"); sb = sb.Replace("\\n", "<br/>"); return
sb.ToString(); } /// <summary> /// 实体解析成Html /// </summary> /// <param name="str">string</param> /// <returns>string</returns> public
static string HtmlDecode(string
str) { StringBuilder sb = new
StringBuilder(str); sb = sb.Replace("<br/>", "\\n"); sb = sb.Replace(">", ">"); sb = sb.Replace("<", "<"); sb = sb.Replace(" ", " "); sb = sb.Replace(""", "\""); sb = sb.Replace("‘", "\‘"); sb = sb.Replace("&", "&"); return
sb.ToString(); } /// <summary> /// 移除Html标记 /// </summary> /// <param name="content"></param> /// <returns></returns> public
static string NoHtml(string
content) { return
Regex.Replace(content, @"<[^>]*>", string.Empty, RegexOptions.IgnoreCase); } /// <summary> /// URL编码 /// </summary> /// <param name="urlStr"></param> /// <returns></returns> public
static string UrlEncode(string
urlStr) { return
HttpUtility.UrlEncode(urlStr); } /// <summary> /// URL解码 /// </summary> /// <param name="urlStr"></param> /// <returns></returns> public
static string UrlDecode(string
urlStr) { return
HttpUtility.UrlDecode(urlStr); } /// <summary> /// Base64编码 /// </summary> /// <param name="str">原文</param> /// <returns>密文</returns> public
static string EnBase64(string
str) { return
Convert.ToBase64String(Encoding.UTF8.GetBytes(str)); } /// <summary> /// Base64解码 /// </summary> /// <param name="eStr">密文</param> /// <returns>原文</returns> public
static string DeBase64(string
eStr) { if
(!ZValid.IsBase64(eStr)){ return
eStr;} return
Encoding.UTF8.GetString(Convert.FromBase64String(eStr)); } /// <summary> /// MD5加密 /// </summary> /// <param name="source">源字符串</param> /// <returns>32位散列</returns> public
static string Encypt(string
source) { return
FormsAuthentication.HashPasswordForStoringInConfigFile(source, "MD5"); } /// <summary> /// AES加密 /// </summary> /// <param name="encryptString">原文</param> /// <param name="encryptKey">密钥</param> /// <returns>密文</returns> public
static string EnAES(string
encryptString, string
encryptKey) { byte[] Keys = { 0x41, 0x72, 0x65, 0x79, 0x6F, 0x75, 0x6D, 0x79, 0x53, 0x6E, 0x6F, 0x77, 0x6D, 0x61, 0x6E, 0x3F }; encryptKey = ZString.PadString(encryptKey, 32, ""); encryptKey = encryptKey.PadRight(32, ‘ ‘); RijndaelManaged rijndaelProvider = new
RijndaelManaged(); rijndaelProvider.Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32)); rijndaelProvider.IV = Keys; ICryptoTransform rijndaelEncrypt = rijndaelProvider.CreateEncryptor(); byte[] inputData = Encoding.UTF8.GetBytes(encryptString); byte[] encryptedData = rijndaelEncrypt.TransformFinalBlock(inputData, 0, inputData.Length); return
Convert.ToBase64String(encryptedData); } /// <summary> /// AES解密 /// </summary> /// <param name="decryptString">密文</param> /// <param name="decryptKey">密钥</param> /// <returns>原文</returns> public
static string DeAES(string
decryptString, string
decryptKey) { byte[] Keys = { 0x41, 0x72, 0x65, 0x79, 0x6F, 0x75, 0x6D, 0x79, 0x53, 0x6E, 0x6F, 0x77, 0x6D, 0x61, 0x6E, 0x3F }; if
(decryptString == string.Empty) { return
string.Empty; } try { decryptKey = ZString.PadString(decryptKey, 32, ""); decryptKey = decryptKey.PadRight(32, ‘ ‘); RijndaelManaged rijndaelProvider = new
RijndaelManaged(); rijndaelProvider.Key = Encoding.UTF8.GetBytes(decryptKey); rijndaelProvider.IV = Keys; ICryptoTransform rijndaelDecrypt = rijndaelProvider.CreateDecryptor(); byte[] inputData = Convert.FromBase64String(decryptString); byte[] decryptedData = rijndaelDecrypt.TransformFinalBlock(inputData, 0, inputData.Length); return
Encoding.UTF8.GetString(decryptedData); } catch { return
""; } } }} |
发一些自己最常用的C#函数（一) :用户提交过滤,布布扣,bubuko.com
原文：http://www.cnblogs.com/apollosun123/p/3639589.html