java加密解密
public class MD5Util {
/**
* @param args
*/
public static void main(String[] args) {
System.out.println(decrypt("137%128%143%145%124%144%135%143%76%"));
System.out.println(encrypt("frontdev"));
}
/**
*用户名解密
*@param ssoToken 字符串
*@return String 返回加密字符串
*/
public static String decrypt(String ssoToken)
{
try
{
String name = new String();
java.util.StringTokenizer st=new java.util.StringTokenizer(ssoToken,"%");
while (st.hasMoreElements()) {
int asc = Integer.parseInt((String)st.nextElement()) - 27;
name = name + (char)asc;
}
return name;
}catch(Exception e)
{
e.printStackTrace() ;
return null;
}
}
/**
*用户名加密
*@param ssoToken 字符串
*@return String 返回加密字符串
*/
public static String encrypt(String ssoToken)
{
try
{
byte[] _ssoToken = ssoToken.getBytes("ISO-8859-1");
String name = new String();
// char[] _ssoToken = ssoToken.toCharArray();
for (int i = 0; i < _ssoToken.length; i++) {
int asc = _ssoToken[i];
_ssoToken[i] = (byte) (asc + 27);
name = name + (asc + 27) + "%";
}
return name;
}catch(Exception e)
{
e.printStackTrace() ;
return null;
}
}
}
