JAVA开发_Base64编码与解码

代码块

/**
*
* @param s
* @return
*/
public static String getBASE64(String s)
{
if (s == null)
{
return null;
}
try
{
return getBASE64(s.getBytes("UTF-8"));
} catch (UnsupportedEncodingException e)
{
e.printStackTrace();
}
return null;
}

/**
*
* @param s
* @return
*/
public static String getBASE64(byte[] b)
{
byte[] rb = org.apache.commons.codec.binary.Base64.encodeBase64(b);
if (rb == null)
{
return null;
}
try
{
return new String(rb, "UTF-8");
} catch (UnsupportedEncodingException e)
{
e.printStackTrace();
}
return null;
}

/**
*
* @param s
* @return
*/
public static String getFromBASE64(String s)
{
if (s == null)
{
return null;
}
try
{
byte[] b = getBytesBASE64(s);
if (b == null)
{
return null;
}
return new String(b, "UTF-8");
} catch (UnsupportedEncodingException e)
{
e.printStackTrace();
}
return null;
}

/**
*
* @param s
* @return
*/
public static byte[] getBytesBASE64(String s)
{
if (s == null)
{
return null;
}
try
{
byte[] b = org.apache.commons.codec.binary.Base64.decodeBase64(s
.getBytes("UTF-8"));
return b;
} catch (Exception e)
{
return null;
}
}