import org.apache.tomcat.util.codec.DecoderException; //导入依赖的package包/类
/**
 * Decodes an Object using the Base-N algorithm. This method is provided in order to satisfy the requirements of
 * the Decoder interface, and will throw a DecoderException if the supplied object is not of type byte[] or String.
 *
 * @param obj
 *            Object to decode
 * @return An object (of type byte[]) containing the binary data which corresponds to the byte[] or String
 *         supplied.
 * @throws DecoderException
 *             if the parameter supplied is not of type byte[]
 */
@Override
public Object decode(final Object obj) throws DecoderException {
    if (obj instanceof byte[]) {
        return decode((byte[]) obj);
    } else if (obj instanceof String) {
        return decode((String) obj);
    } else {
        throw new DecoderException("Parameter supplied to Base-N decode is not a byte[] or a String");
    }
}
 

import org.apache.tomcat.util.codec.DecoderException; //导入依赖的package包/类
/**
 * Decodes an Object using the Base-N algorithm. This method is provided in
 * order to satisfy the requirements of the Decoder interface, and will
 * throw a DecoderException if the supplied object is not of type byte[] or
 * String.
 *
 * @param obj
 *            Object to decode
 * @return An object (of type byte[]) containing the binary data which
 *         corresponds to the byte[] or String supplied.
 * @throws DecoderException
 *             if the parameter supplied is not of type byte[]
 */
@Override
public Object decode(final Object obj) throws DecoderException {
	if (obj instanceof byte[]) {
		return decode((byte[]) obj);
	} else if (obj instanceof String) {
		return decode((String) obj);
	} else {
		throw new DecoderException("Parameter supplied to Base-N decode is not a byte[] or a String");
	}
}