获取监听端口的流量数据

GroupStat

TioConfig对象有个GroupStat成员，定义如下

public GroupStat groupStat = null;

GroupStat定义

GroupStat有如下一些字段和方法（去掉了简单的getter和setter）

    /**
     * 关闭了多少连接
     */
    public final AtomicLong     closed              = new AtomicLong();
    /**
     * 接收到的消息包
     */
    public final AtomicLong     receivedPackets     = new AtomicLong();
    /**
     * 接收到的消息字节数
     */
    public final AtomicLong receivedBytes = new AtomicLong();
    /**
     * 处理了的消息包数
     */
    public final AtomicLong handledPackets = new AtomicLong();
    /**
     * 处理消息包耗时，单位：毫秒
     */
    public final AtomicLong handledPacketCosts = new AtomicLong();
    /**
     * 处理了多少字节
     */
    public final AtomicLong handledBytes = new AtomicLong();
    /**
     * 发送了的消息包数
     */
    public final AtomicLong sentPackets = new AtomicLong();
    /**
     * 发送了的字节数
     */
    public final AtomicLong sentBytes = new AtomicLong();
    /**
     * 本IP已接收了多少次TCP数据包
     */
    public final AtomicLong receivedTcps = new AtomicLong();
    /**
     * 平均每次TCP接收到的字节数，这个可以用来监控慢攻击，配置PacketsPerTcpReceive定位慢攻击
     */
    public double getBytesPerTcpReceive() {
        if (receivedTcps.get() == 0) {
            return 0;
        }
        double ret = (double) receivedBytes.get() / (double) receivedTcps.get();
        return ret;
    }
    /**
     * 平均每次TCP接收到的业务包数，这个可以用来监控慢攻击，此值越小越有攻击嫌疑
     */
    public double getPacketsPerTcpReceive() {
        if (receivedTcps.get() == 0) {
            return 0;
        }
        double ret = (double) receivedPackets.get() / (double) receivedTcps.get();
        return ret;
    }
    /**
     * 处理packet平均耗时，单位：毫秒
     * @return
     */
    public double getHandledCostsPerPacket() {
        if (handledPackets.get() > 0) {
            return handledPacketCosts.get() / handledPackets.get();
        }
        return 0;
    }

对于服务器端的groupStat，它是在ServerTioConfig类中的初始化代码在构造函数中，如下

this.groupStat = new ServerGroupStat();

对于客户端的groupStat，它是在ClientTioConfig类中的初始化代码在构造函数中，如下

this.groupStat = new ClientGroupStat();

获取GroupStat

GroupStat groupStat = tioConfig.groupStat;
//如果确认是服务器端，则可以用强转方式获得ServerGroupStat对象
ServerGroupStat serverGroupStat = (ServerGroupStat)tioConfig.groupStat;
//如果确认是客户端，则可以用强转方式获得ClientGroupStat对象
ClientGroupStat clientGroupStat = (ClientGroupStat)tioConfig.groupStat;