redis命令：set name zhangsan
*3
$3
set
$4
name
$8
zhangsan
*3 表示有三个元素
$3表示 set 命令的长度，3个字节
$4 表示name的长度，4个字节
$8 表示zhangsan的长度，8个字节
package com.xkj.nian;import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.logging.LoggingHandler;
import lombok.extern.slf4j.Slf4j;import java.nio.charset.Charset;@Slf4j
public class RedisClientDemo {public static void main(String[] args) {NioEventLoopGroup worker 
)
)
