Class StringDecoder

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
All Implemented Interfaces:
ChannelHandler, ChannelInboundHandler
@Sharable public class StringDecoder extends MessageToMessageDecoder<ByteBuf>
Decodes a received ByteBuf into a String. Please note that this decoder must be used with a proper ByteToMessageDecoder such as DelimiterBasedFrameDecoder or LineBasedFrameDecoder if you are using a stream-based transport such as TCP/IP. A typical setup for a text-based line protocol in a TCP/IP socket would be: 
ChannelPipeline pipeline = ...;
// Decoders
pipeline.addLast("frameDecoder", new LineBasedFrameDecoder(80));
pipeline.addLast("stringDecoder", new StringDecoder(CharsetUtil.UTF_8));
// Encoder
pipeline.addLast("stringEncoder", new StringEncoder(CharsetUtil.UTF_8));
and then you can use a String instead of a ByteBuf as a message: 
void channelRead(ChannelHandlerContext ctx, String msg) {
 ch.write("Did you say '" + msg + "'?\n");
}