NettyServer端的初始化流程
先写一个通用的Netty服务端的启动代码, 而后逐步分析
public class NettyServer {
private final EventLoopGroup parent;
private final EventLoopGroup children;
private final ServerBootstrap bootstrap;
public NettyServer() {
parent = new NioEventLoopGroup(1);
children = new NioEventLoopGroup();
bootstrap = new ServerBootstrap()
.channel(NioServerSocketChannel.class)
.group(parent, children)
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(new ChannelInitializer<ServerChannel>() {
@Override
protected void initChannel(ServerChannel ch) throws Exception {
ch.pipeline();
// 添加自定义handler...
}
});
}
public ChannelFuture bind(int port) throws InterruptedException {
try {
return bootstrap.bind(port).sync();
} catch (InterruptedException e) {
parent.shutdownGracefully();
children.shutdownGracefully();
throw e;
}
}
public static void main(String[] args) throws InterruptedException {
new NettyServer().bind(9989);
}
}
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