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Netty4 websocket 开启服务端并设置IP和端口号
简介Netty4 websocket 开启服务端并设置IP和端口号
一、环境也就是POM文件
<dependencies>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.87.Final</version>
</dependency>
</dependencies>
二、实际代码
Netty 实现 WebSocket 服务器
主文件.localAddress(new InetSocketAddress("192.168.3.170", 8686))
设置IP和端口号
主文件.localAddress(new InetSocketAddress("192.168.3.170", 8686))
设置IP和端口号
package com.yadinghao.demo.Netty;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
import io.netty.handler.codec.http.websocketx.extensions.compression.WebSocketServerCompressionHandler;
import java.net.InetSocketAddress;
public class WebSocketServer {
public static void main(String[] args) throws InterruptedException {
EventLoopGroup bossGroup = new NioEventLoopGroup();
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
ServerBootstrap b = new ServerBootstrap();
b.group(bossGroup, workerGroup)
.channel(NioServerSocketChannel.class)
.localAddress(new InetSocketAddress("192.168.3.170", 8686))
.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
pipeline.addLast(new HttpServerCodec()); // HTTP 协议解析,用于握手阶段
pipeline.addLast(new HttpObjectAggregator(65536)); // HTTP 协议解析,用于握手阶段
pipeline.addLast(new WebSocketServerCompressionHandler()); // WebSocket 数据压缩扩展
pipeline.addLast(new WebSocketServerProtocolHandler("/", null, true)); // WebSocket 握手、控制帧处理
pipeline.addLast(new MyWebSocketServerHandler());
}
});
ChannelFuture f = b.bind().sync();
f.channel().closeFuture().sync();
} finally {
workerGroup.shutdownGracefully();
bossGroup.shutdownGracefully();
}
}
}
监听 文件
package com.yadinghao.demo.Netty;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
import io.netty.handler.codec.http.websocketx.WebSocketFrame;
public class MyWebSocketServerHandler extends SimpleChannelInboundHandler<WebSocketFrame> {
@Override
protected void channelRead0(ChannelHandlerContext ctx, WebSocketFrame frame) throws Exception {
if (frame instanceof TextWebSocketFrame) { // 此处仅处理 Text Frame
String request = ((TextWebSocketFrame) frame).text();
ctx.channel().writeAndFlush(new TextWebSocketFrame("收到: " + request));
}
}
}
附:WebSocket 在线测试工具
WebSocket在线测试工具
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