//组装报文:魔数(4字节)+ 版本号(1字节)+ 序列化方式(1字节)+ 指令(1字节)+ 数据长度(4字节)+ 数据(N字节)
buf.writeInt(MAGIC_NUMBER)
buf.writeByte(packet.version.toInt())
buf.writeByte(packet.serializeMethod.toInt())
buf.writeByte(packet.command.toInt())
buf.writeInt(bytes.size)
buf.writeBytes(bytes)
return buf
}
fun decode(buf:ByteBuf): Packet {
buf.skipBytes(4) // 魔数由独自的 Handler 停止校验
buf.skipBytes(1)
val serializationMethod = buf.readByte()
val serializer = SerializerFactory.getSerializer(serializationMethod)
val command = buf.readByte()
val clazz = PacketFactory.getPacket(command)
val length = buf.readInt() // 数据的长度
val bytes = ByteArray(length) // 定义需求读取的字符数组
buf.readBytes(bytes)
return serializer.deserialize(clazz, bytes)
}
}
三. TCP 效劳端
启动 TCP 效劳的办法
fun execute() {
boss = NioEventLoopGroup() worker = NioEventLoopGroup() val bootstrap = ServerBootstrap()
bootstrap.group(boss, worker).channel(NioServerSocketChannel::class.java)
.option(ChannelOption.SO_BACKLOG, 100)
.childOption(ChannelOption.SO_KEEPALIVE, true)
.childOption(ChannelOption.SO_REUSEADDR, true)
.childOption(ChannelOption.TCP_NODELAY, true)
.childHandler(object : ChannelInitializer<NioSocketChannel>() {
@Throws(Exception::class)
(责任编辑:admin)