mima开发实列

最顶层父基类Clinet：用于记录公共内容

切供多个Clinet继承公用

import java.net.InetSocketAddress;
import java.nio.charset.Charset;
import java.util.Timer;
import java.util.TimerTask;

import org.apache.commons.lang.StringUtils;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.transport.socket.nio.NioSocketConnector;

import com.qinghuainvest.tsmarket.codec.HCoderFactory;
import com.qinghuainvest.tsmarket.socketclient.MinaClientHanlder;

/**
 * 父基类
 * @author huage
 *
 */
public abstract class MinaBaseClient {

    public abstract void startSocketReq(String code);
    protected String hostName ;
    protected int bindPort;

    /**
     * 创建IOSession
     * @return
     */
    protected IoSession createSession(){
        if( StringUtils.isBlank(hostName)) return null;
        try {
            NioSocketConnector connector = new NioSocketConnector();
            DefaultIoFilterChainBuilder chain = connector.getFilterChain();
            chain.addLast("objectFilter", new ProtocolCodecFilter(new HCoderFactory(Charset.forName("UTF-8"))));
            MinaClientHanlder handler = new MinaClientHanlder();
            connector.setHandler(handler);
            connector.getSessionConfig().setUseReadOperation(true);
            ConnectFuture cf = connector.connect(new InetSocketAddress(hostName, bindPort));
            cf.awaitUninterruptibly();
            return cf.getSession();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
     }

    /**
     * 传输数据
     * @param session
     * @param code
     */
    protected void writeMina(IoSession session,String code){
        if( session == null )return;
        session.write(code + "\n");
    }

    public static void main(String[] args) {
        Integer cacheTime = 1000 * 1;
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            public void run() {
                /*StockMina1004Client ns = new StockMina1004Client("218.1.111.62", 10003);
                ns.startSocketReq(EmCommunicationCode.nqxx.getCode()+"" );*/
            }
        }, 1000, cacheTime);
    }
}

子类继承

import org.apache.mina.core.session.IoSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class StockMinaClient extends MinaBaseClient{
    private final Logger log = LoggerFactory.getLogger(StockMinaClient.class);
    private boolean isStatus = true;
    private IoSession session;

    public StockMinaClient(String hostName,int bindPort){
        super.hostName = hostName;
        super.bindPort = bindPort;
    }

    public void startSocketReq(String code) {
        if (isStatus) {
            isStatus = false;
            log.info("socket request start....hostName="+hostName+";bindPort="+bindPort+";requestparam="+code);
            if (session == null || !session.isConnected()) {
                session = createSession();
            }
            isStatus = true;
            super.writeMina(session, code);
        }
    }

}

子类重写(只是表明可以区别创建的对象)

import java.net.InetSocketAddress;
import java.nio.charset.Charset;

import org.apache.commons.lang.StringUtils;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.transport.socket.nio.NioSocketConnector;

import com.qinghuainvest.tsmarket.codec.HCoderFactory;
import com.qinghuainvest.tsmarket.socketclient.MinaClient1004Hanlder;

public class StockMina1004Client extends StockMinaClient{
    public StockMina1004Client(String hostName, int bindPort) {
        super(hostName, bindPort);
    }

    protected IoSession createSession(){
        if( StringUtils.isBlank(hostName)) return null;
        try {
            NioSocketConnector connector = new NioSocketConnector();
            DefaultIoFilterChainBuilder chain = connector.getFilterChain();
            chain.addLast("objectFilter", new ProtocolCodecFilter(new HCoderFactory(Charset.forName("UTF-8"))));
            MinaClient1004Hanlder handler = new MinaClient1004Hanlder();
            connector.setHandler(handler);
            connector.getSessionConfig().setUseReadOperation(true);
            ConnectFuture cf = connector.connect(new InetSocketAddress(hostName, bindPort));
            cf.awaitUninterruptibly();
            return cf.getSession();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
     }

}

需要的handler(根据实际业务调整messageReceived方法中的内容既可)

import java.util.Set;

import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MinaClientHanlder extends IoHandlerAdapter {
    private final Logger log = LoggerFactory.getLogger(MinaClientHanlder.class);
    @Override
    public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
        cause.printStackTrace();
    }  

    @Override
    public void messageReceived(IoSession session, Object message)throws Exception {
        log.info("收到行情服务器回调传送数据...");
        if (message != null) {
            try {
                callback((String) message,session);
                clear(session);
            } catch (Exception e) {
                log.error("message Received ", e);
                //e.printStackTrace();
                session.write("system error.");
            }
        }
    }

    public void callback(String msg,IoSession session){
        if (!"null".equals(msg)) {
            //处理数据
        }
    }

    /**
     * 清除session中的attribute
     * 解决mina通讯中内存溢出异常
     * 测试方法，未找到明确依据
     * @param session
     */
    private void clear(IoSession session) {
        Set<Object> set = session.getAttributeKeys();
        if(set==null || set.size()==0) return;
        for (Object object : set) {
            if(session.containsAttribute(object)) {
                session.removeAttribute(object);
            }
        }
    }
    @Override
    public void sessionCreated(IoSession session) throws Exception {
        log.info("session Created--");
        //System.out.println("session Created");
    }
    @Override
    public void messageSent(org.apache.mina.core.session.IoSession session, java.lang.Object message) {
        log.info("message Sented");
        //System.out.println("message Sented--");
    }
}

根据业务需要的另一个handler

import org.apache.mina.core.session.IoSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MinaClient1004Hanlder extends MinaClientHanlder {
    private final Logger log = LoggerFactory.getLogger(MinaClient1004Hanlder.class);public void callback(String msg,IoSession session) {
        if (!"null".equals(msg)) {
            //处理数据
        }
        startCheck();
    }

}

特殊业务处理的工具类(根据业务自行处理)

package com.qinghuainvest.tsmarket.codec;

import java.nio.charset.Charset;

import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFactory;
import org.apache.mina.filter.codec.ProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolEncoder;

public class HCoderFactory implements ProtocolCodecFactory {

    private final HDecoder decoder;
    private final HEncoder encoder;
//    private final TextLineEncoder encoder;

    public HCoderFactory() {
        this(Charset.defaultCharset());
    }

    public HCoderFactory(Charset charset) {
        decoder = new HDecoder();
        encoder = new HEncoder();
//        encoder = new TextLineEncoder();
    }

    public ProtocolEncoder getEncoder(IoSession session) throws Exception {
        return encoder;
    }

    public ProtocolDecoder getDecoder(IoSession session) throws Exception {
        return decoder;
    }
}

import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.CumulativeProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolDecoderOutput;

public class HDecoder extends CumulativeProtocolDecoder {

    @Override
    protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {
        // Remember the initial position.
        int start = in.position();
//        byte previous = 0;
        byte[] requestMsgArray;
        while (in.hasRemaining()) {
            byte current = in.get();
            if (current == ‘\n‘) {
                // Remember the current position and limit.
                int position = in.position();
                int limit = in.limit();
                try {
                    int dataLength = position - start - 1;//忽略掉\n,所以减1
                    in.position(start);
                    in.limit(position);
                    requestMsgArray = new byte[dataLength];
                    // The bytes between in.position() and in.limit()
                    // now contain a full CRLF terminated line.
                    in.get(requestMsgArray);
                    out.write(new String(requestMsgArray));
                } finally {
                    // Set the position to point right after the
                    // detected line and set the limit to the old
                    // one.
                    in.position(position);
                    in.limit(limit);
                }
                // Decoded one line; CumulativeProtocolDecoder will
                // call me again until I return false. So just
                // return true until there are no more lines in the
                // buffer.
//                previous = current;
                return true;
            }
        }
        in.position(start);

        return false;

    }
}

import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolEncoderAdapter;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;

public class HEncoder extends ProtocolEncoderAdapter {

    public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception {
        String msg = (String) message;
        byte[] msgArray = msg.getBytes();
        IoBuffer buffer = IoBuffer.allocate(msgArray.length , false);
        buffer.put(msgArray);
        buffer.flip();
        out.write(buffer);
        out.flush();
    }
}

处理调用启动写main方法调用

 public void start(){
　　  StockMinaClient  client  = null;
        if( client == null ){
            client = new StockMinaClient(market.getHostName(), market.getBindPort());
        }
        client.startSocketReq(EmCommunicationCode.nqxx.getCode()+"");
    }