import javax.jmdns.impl.DNSOutgoing.MessageOutputStream; //导入依赖的package包/类
@Override
void write(MessageOutputStream out) {
    if (_addr != null) {
        byte[] buffer = _addr.getAddress();
        // If we have a type A records we should answer with a IPv4 address
        if (_addr instanceof Inet4Address) {
            // All is good
        } else {
            // Get the last four bytes
            byte[] tempbuffer = buffer;
            buffer = new byte[4];
            System.arraycopy(tempbuffer, 12, buffer, 0, 4);
        }
        int length = buffer.length;
        out.writeBytes(buffer, 0, length);
    }
}
 

import javax.jmdns.impl.DNSOutgoing.MessageOutputStream; //导入依赖的package包/类
@Override
void write(MessageOutputStream out)
{
    if (_addr != null)
    {
        byte[] buffer = _addr.getAddress();
        // If we have a type A records we should answer with a IPv4 address
        if (_addr instanceof Inet4Address)
        {
            // All is good
        }
        else
        {
            // Get the last four bytes
            byte[] tempbuffer = buffer;
            buffer = new byte[4];
            System.arraycopy(tempbuffer, 12, buffer, 0, 4);
        }
        int length = buffer.length;
        out.writeBytes(buffer, 0, length);
    }
}