Apache MINA(Multipurpose Infrastructure for Network Applications)是一個基于NIO的網絡應用框架,可以幫助開發者快速開發高性能的網絡應用程序。下面是一個簡單的示例演示如何在Java中使用MINA框架:
首先,在你的項目中添加MINA的依賴。你可以通過Maven來添加依賴,示例代碼如下:
<dependency>
<groupId>org.apache.mina</groupId>
<artifactId>mina-core</artifactId>
<version>2.1.3</version>
</dependency>
下面是一個簡單的示例代碼,演示如何創建一個MINA服務器并處理客戶端連接:
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();
}
}
}
下面是一個簡單的示例代碼,演示如何創建一個MINA客戶端連接到上面創建的服務器:
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();
}
}
}
這樣就完成了一個簡單的MINA網絡應用程序,其中包括一個MINA服務器和一個MINA客戶端。當客戶端發送消息到服務器時,服務器會將收到的消息轉換成大寫并發送回客戶端。你可以根據自己的需求來擴展和完善這個示例代碼。