博客
关于我
Netty4服务端入门代码示例
阅读量:348 次
发布时间:2019-03-04

本文共 2397 字,大约阅读时间需要 7 分钟。

添加Maven依赖

io.netty
netty-all
4.1.36.Final

代码示例:

import io.netty.bootstrap.ServerBootstrap;import io.netty.channel.*;import io.netty.channel.nio.NioEventLoopGroup;import io.netty.channel.socket.SocketChannel;import io.netty.channel.socket.nio.NioServerSocketChannel;import io.netty.handler.codec.string.StringDecoder;import io.netty.handler.codec.string.StringEncoder;public class NetttyServer{    public static void main(String[] args)    {        EventLoopGroup boss = new NioEventLoopGroup();        EventLoopGroup worker = new NioEventLoopGroup();        ServerBootstrap bootstrap = new ServerBootstrap();        bootstrap.group(boss,worker)                .channel(NioServerSocketChannel.class)                .childHandler(new ChannelInitializer
() { @Override protected void initChannel(SocketChannel socketChannel) throws Exception { socketChannel.pipeline() .addLast("encoder",new StringEncoder()) .addLast("decoder",new StringDecoder()) .addLast("hello world hanlder",new HelloWorldHandler()); } }); try { ChannelFuture channelFuture = bootstrap.bind(8080).sync(); channelFuture.channel().closeFuture().sync(); } catch (InterruptedException e){ e.printStackTrace(); }finally { boss.shutdownGracefully(); worker.shutdownGracefully(); } } static class HelloWorldHandler extends ChannelInboundHandlerAdapter { @Override public void channelActive(ChannelHandlerContext ctx) throws Exception { System.out.println("channel Active and write back......"); String resp = "Hello world"; ChannelFuture future = ctx.channel().writeAndFlush(resp); future.sync(); System.out.println("success:"+future.isSuccess()); //super.channelActive(ctx); } public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { System.out.println("read msg : "+msg); String resp = "Hello world"; ctx.channel().writeAndFlush(resp); } }}

转载地址:http://qume.baihongyu.com/

你可能感兴趣的文章
Mysql8在Centos上安装后忘记root密码如何重新设置
查看>>
Mysql8在Windows上离线安装时忘记root密码
查看>>
MySQL8找不到my.ini配置文件以及报sql_mode=only_full_group_by解决方案
查看>>
mysql8的安装与卸载
查看>>
MySQL8,体验不一样的安装方式!
查看>>
MySQL: Host '127.0.0.1' is not allowed to connect to this MySQL server
查看>>
Mysql: 对换(替换)两条记录的同一个字段值
查看>>
mysql:Can‘t connect to local MySQL server through socket ‘/var/run/mysqld/mysqld.sock‘解决方法
查看>>
MYSQL:基础——3N范式的表结构设计
查看>>
MYSQL:基础——触发器
查看>>
Mysql:连接报错“closing inbound before receiving peer‘s close_notify”
查看>>
mysqlbinlog报错unknown variable ‘default-character-set=utf8mb4‘
查看>>
mysqldump 参数--lock-tables浅析
查看>>
mysqldump 导出中文乱码
查看>>
mysqldump 导出数据库中每张表的前n条
查看>>
mysqldump: Got error: 1044: Access denied for user ‘xx’@’xx’ to database ‘xx’ when using LOCK TABLES
查看>>
Mysqldump参数大全(参数来源于mysql5.5.19源码)
查看>>
mysqldump备份时忽略某些表
查看>>
mysqldump实现数据备份及灾难恢复
查看>>
mysqldump数据库备份无法进行操作只能查询 --single-transaction
查看>>