Server.java
public class Server {
public static void main(String[] args) {
//服务类
ServerBootstrap serverBootstrap = new ServerBootstrap();
//boss线程监听端口,worker线程负责数据读写
ExecutorService boss = Executors.newCachedThreadPool();
ExecutorService worker = Executors.newCachedThreadPool();
//设置niosocket工厂
serverBootstrap.setFactory(new NioServerSocketChannelFactory(boss, worker));
//设置管道的工厂
serverBootstrap.setPipelineFactory(new ChannelPipelineFactory() {
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeLine = Channels.pipeline();
pipeLine.addLast("decoder", new StringDecoder());
pipeLine.addLast("encoder", new StringEncoder());
pipeLine.addLast("helloHandle", new HelloHandle());
return pipeLine;
}
});
serverBootstrap.bind(new InetSocketAddress(10102));
System.out.println("start!!!");
}
}复制代码
HelloHandle.java
public class HelloHandle extends SimpleChannelHandler{
/**
* 接收消息
*/
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
System.out.println("messageReceived");
String s = (String) e.getMessage();
System.out.println(s);
//回写数据
ctx.getChannel().write("hi");
super.messageReceived(ctx, e);
}
/**
* 捕获异常
*/
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
System.out.println("exceptionCaught");
super.exceptionCaught(ctx, e);
}
/**
* 新连接
*/
@Override
public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
System.out.println("channelConnected");
super.channelConnected(ctx, e);
}
/**
* 必须是链接已经建立,关闭通道的时候才会触发
*/
@Override
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
System.out.println("channelDisconnected");
super.channelDisconnected(ctx, e);
}
/**
* channel关闭的时候触发
*/
@Override
public void channelClosed(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
System.out.println("channelClosed");
super.channelClosed(ctx, e);
}
}复制代码
Netty3客户端代码
Client.java
public class Client {
public static void main(String[] args) {
//客户端类
ClientBootstrap strap = new ClientBootstrap();
ExecutorService boss = Executors.newCachedThreadPool();
ExecutorService worker =Executors.newCachedThreadPool();
//设置niosocket工厂
strap.setFactory(new NioClientSocketChannelFactory(boss,worker));
//设置管道的工厂
strap.setPipelineFactory(new ChannelPipelineFactory() {
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeLine = Channels.pipeline();
pipeLine.addLast("decoder", new StringDecoder());
pipeLine.addLast("encoder", new StringEncoder());
pipeLine.addLast("hiHandle", new HiHandle());
return pipeLine;
}
});
//连接服务端
ChannelFuture connect = strap.connect(new InetSocketAddress("127.0.0.1",10102));
Channel channel = connect.getChannel();
System.out.println("client start");
Scanner scanner = new Scanner(System.in);
while(true){
System.out.println("请输入");
channel.write(scanner.next());
}
}
}复制代码
HiHandle.java
public class HiHandle extends SimpleChannelHandler {
/**
* 接收消息
*/
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
String s = (String) e.getMessage();
System.out.println(s);
super.messageReceived(ctx, e);
}
/**
* 捕获异常
*/
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
System.out.println("exceptionCaught");
super.exceptionCaught(ctx, e);
}
/**
* 新连接
*/
@Override
public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
System.out.println("channelConnected");
super.channelConnected(ctx, e);
}
/**
* 必须是链接已经建立,关闭通道的时候才会触发
*/
@Override
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
System.out.println("channelDisconnected");
super.channelDisconnected(ctx, e);
}
/**
* channel关闭的时候触发
*/
@Override
public void channelClosed(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
System.out.println("channelClosed");
super.channelClosed(ctx, e);
}
}复制代码
开始测试
1.启动服务端:
2.启动客户端:(并输入信息)
3.回看服务端
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