mina服务端接收不到消息 求大佬指点

Question

 

Server：

package WangLuoTongXin.MinaDemo;

import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.serialization.ObjectSerializationCodecFactory;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.transport.socket.SocketAcceptor;
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;

import java.io.IOException;
import java.net.InetSocketAddress;

public class Server {
    public static void main(String[] args) {
        //创建一个非阻塞的Server端Socket NIO
        SocketAcceptor acceptor = new NioSocketAcceptor();
        DefaultIoFilterChainBuilder chain = acceptor.getFilterChain();
        //设定一个过滤器，一行一行的读取数据（标识符是 /r/n）
        //chain.addLast("myChain",new ProtocolCodecFilter(new TextLineCodecFactory()));
        //设定过滤器以对象为单位读取数据
        chain.addLast("objectFilter",new ProtocolCodecFilter(new ObjectSerializationCodecFactory()));
        //设置服务端的消息处理器
        acceptor.setHandler(new ServerHandler());
        int port = 9999;//服务端端口号
        try {
            //绑定端口，同时启动服务器（不会阻塞，立即返回）
            acceptor.bind(new InetSocketAddress(port));
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("Mina Server Running,Listener on :"+port);
    }
}

ServerHandler：

package WangLuoTongXin.MinaDemo;

//服务器端的消息处理器

import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;

public class ServerHandler extends IoHandlerAdapter {
    //一次会话被打开
    @Override
    public void sessionOpened(IoSession session) throws Exception {
        super.sessionOpened(session);
        System.out.println("welcome client"+session.getRemoteAddress());
    }
    //会话关闭
    @Override
    public void sessionClosed(IoSession session) throws Exception {
        super.sessionClosed(session);
        System.out.println("client closed");
    }
    //接收消息
    @Override
    public void messageReceived(IoSession session, Object message) throws Exception {
        super.messageReceived(session, message);
        //String msg =(String)message;//接收到的消息对象  强制转化为字符串
        Message msg = (Message)message;
        System.out.println("收到客户端发来的消息："+msg);
        //向客户端发送消息对象
        session.write("echo:"+msg);
    }
}

Message：

package WangLuoTongXin.MinaDemo;

public class Message {
    private String from;
    private String to;
    private String type;
    private String info;

    public Message() {
    }

    @Override
    public String toString() {
        return "Message{" +
                "from='" + from + '\'' +
                ", to='" + to + '\'' +
                ", type='" + type + '\'' +
                ", info='" + info + '\'' +
                '}';
    }

    public Message(String from, String to, String type, String info) {
        this.from = from;
        this.to = to;
        this.type = type;
        this.info = info;
    }

    public String getFrom() {
        return from;
    }

    public void setFrom(String from) {
        this.from = from;
    }

    public String getTo() {
        return to;
    }

    public void setTo(String to) {
        this.to = to;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getInfo() {
        return info;
    }

    public void setInfo(String info) {
        this.info = info;
    }
}

Client：

package WangLuoTongXin.MinaDemo;

import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.serialization.ObjectSerializationCodecFactory;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.transport.socket.nio.NioSocketConnector;

import java.net.InetSocketAddress;
import java.util.Scanner;

public class Client {
    public static void main(String[] args) {
        //创建连接
        NioSocketConnector connector = new NioSocketConnector();
        DefaultIoFilterChainBuilder chain = connector.getFilterChain();
        //chain.addLast("myChain",new ProtocolCodecFilter(new TextLineCodecFactory()));
        chain.addLast("objectFilter",new ProtocolCodecFilter(new ObjectSerializationCodecFactory()));
        connector.setHandler(new ClientHandler());
        connector.setConnectTimeoutMillis(10000);
        //连接服务器
        ConnectFuture cf = connector.connect(new InetSocketAddress("localhost", 9999));
        cf.awaitUninterruptibly();//等待连接成功
        Scanner input = new Scanner(System.in);
        while (true) {//循环可以多次输入要发送的消息
/*            System.out.println("请输入");
            String info = input.nextLine();
            //发送消息
            cf.getSession().write(info);

 */
            //以对象的方式传输数据
            Message msg = new Message();
            System.out.println("from");
            msg.setFrom(input.nextLine());
            System.out.println("to:");
            msg.setTo(input.nextLine());
            System.out.println("info:");
            msg.setInfo(input.nextLine());
            msg.setType("send");
            cf.getSession().write(msg);

        }
        //等待服务器连接关闭，结束长连接
        //cf.getSession().getCloseFuture().awaitUninterruptibly();意思是等待服务器关闭以后连接就失效了
        //connector.dispose();关闭连接
    }
}

ClientHandler

package WangLuoTongXin.MinaDemo;

import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;

public class ClientHandler extends IoHandlerAdapter {
    @Override
    public void sessionOpened(IoSession session) throws Exception {
        super.sessionOpened(session);
        System.out.println("连接成功");
    }

    @Override
    public void sessionClosed(IoSession session) throws Exception {
        super.sessionClosed(session);
        System.out.println("连接关闭");
    }

    @Override
    public void messageReceived(IoSession session, Object message) throws Exception {
        super.messageReceived(session, message);
        //String msg = (String)message;
        Message msg = (Message)message;
        System.out.println(msg);
    }
}

 

 

 

Answer 1

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