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 org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class NettyTcpServer {
private final EventLoopGroup bossGroup = new NioEventLoopGroup();
private final EventLoopGroup workerGroup = new NioEventLoopGroup();
private Channel channel;
@Autowired
private ChannelInitializer<SocketChannel> channelInitializer;
public void start(int port) throws InterruptedException {
ServerBootstrap b = new ServerBootstrap();
b.group(bossGroup, workerGroup)
.channel(NioServerSocketChannel.class)
.childHandler(channelInitializer);
channel = b.bind(port).sync().channel();
System.out.println("TCP服务器启动完成，监听端口：" + port);
}
public void stop() {
if (channel != null) {
channel.close();
}
bossGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
}
}
@Component
public class ChannelInitializerImpl extends ChannelInitializer<SocketChannel> {
@Autowired
private ChannelInboundHandlerAdapter handlerAdapter;
@Override
protected void initChannel(SocketChannel ch) {
ch.pipeline().addLast(handlerAdapter);
}
}
@Component
public class ServerHandler extends ChannelInboundHandlerAdapter {
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
// 接收到消息的处理逻辑
}
@Override
public void channelActive(ChannelHandlerContext ctx) {
// 客户端连接时的处理逻辑
}
// 其他必要的方法实现
}这个代码示例展示了如何在Spring Boot应用程序中整合Netty来实现TCP通信服务器。NettyTcpServer类负责启动和停止服务器，ChannelInitializerImpl类配置了Netty的ChannelPipeline，而ServerHandler类处理实际的通信逻辑。这个示例提供了基础框架，开发者可以根据自己的需求添加具体的业务逻辑。