Apache MINA(Multipurpose Infrastructure for Network Applications)是一个基于NIO的网络应用框架,可以帮助开发者快速开发高性能的网络应用程序。下面是一个简单的示例演示如何在Java中使用MINA框架:
首先,在你的项目中添加MINA的依赖。你可以通过Maven来添加依赖,示例代码如下:
<dependency>
<groupId>org.apache.mina</groupId>
<artifactId>mina-core</artifactId>
<version>2.1.3</version>
</dependency>
下面是一个简单的示例代码,演示如何创建一个MINA服务器并处理客户端连接:
public class MyServer {
public static void main(String[] args) throws IOException {
IoAcceptor acceptor = new NioSocketAcceptor();
acceptor.setHandler(new MyServerHandler());
acceptor.bind(new InetSocketAddress(12345));
System.out.println("Server started on port 12345");
}
private static class MyServerHandler extends IoHandlerAdapter {
@Override
public void messageReceived(IoSession session, Object message) throws Exception {
String str = message.toString();
System.out.println("Message received: " + str);
session.write(str.toUpperCase());
}
@Override
public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
cause.printStackTrace();
session.closeNow();
}
}
}
下面是一个简单的示例代码,演示如何创建一个MINA客户端连接到上面创建的服务器:
public class MyClient {
public static void main(String[] args) throws IOException {
IoConnector connector = new NioSocketConnector();
connector.setHandler(new MyClientHandler());
ConnectFuture future = connector.connect(new InetSocketAddress("localhost", 12345));
future.awaitUninterruptibly();
IoSession session = future.getSession();
session.write("Hello, MINA!");
}
private static class MyClientHandler extends IoHandlerAdapter {
@Override
public void messageReceived(IoSession session, Object message) throws Exception {
String str = message.toString();
System.out.println("Response received: " + str);
}
@Override
public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
cause.printStackTrace();
session.closeNow();
}
}
}
这样就完成了一个简单的MINA网络应用程序,其中包括一个MINA服务器和一个MINA客户端。当客户端发送消息到服务器时,服务器会将收到的消息转换成大写并发送回客户端。你可以根据自己的需求来扩展和完善这个示例代码。