chensysky / netty-examples

netty-examples

netty-examples

是基于netty4开发的应用实例：

• rpc server和client的实现
• Netty4Client简化netty client的应用，实现自动重连功能

RPC HelloWorld 实例

服务实现

public interface HelloWorld {
	public Result queryUser(User user);
}

public class HelloWorldImpl implements HelloWorld {

	@Override
	public Result queryUser(User user) {
		return new Result("hello " + user.getUsername());
	}

}

服务端

public class ServerTest {
	public static void main(String[] args) {
		Netty4Server server = new Netty4Server(10);
		server.registerProcessor(HelloWorld.class.getName(), new HelloWorldImpl());

		try {
			server.start(8080);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

客户端

public class ClientTest {
	public static void main(String[] args) {
		try {
			HelloWorld helloWorld = RpcClientFactory.refer(HelloWorld.class, "localhost", 8080);

			Result result = helloWorld.queryUser(new User("melin")); 

			System.out.println(result.getMessage());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

Netty4Client 实例

public class DiamondClient {
	public static void main(String[] args) throws Exception {
		Netty4Client client = new Netty4Client("localhost", 8080, new ClientChannelInitializer());
		
		while(client.isConnected()) {
			System.out.println(client.receiveMessage());
		}
		
		System.out.println("=============");
		
		client.close();
	}
}