详细mysql协议的ping命令包及解析

git

https://github.com/sea-boat/mysql-protocol

概况

mysql客户端可以用ping命令来检查服务端的状态，正常会返回ok包。

mysql通信报文结构

ping命令包

Payload

1              [0e] COM_PING

更多详情 ： http://dev.mysql.com/doc/internals/en/com-ping.html

ping命令包类

/**
 * 
 * @author seaboat
 * @date 2016-09-25
 * @version 1.0
 * <pre><b>email: </b>849586227@qq.com</pre>
 * <pre><b>blog: </b>http://www.gxlcms.com/;/pre>
 * <p>ping command packet.</p>
 */public class PingPacket extends MySQLPacket {
    // payload length is 1,packet id is 0,payload is 0e
    public static final byte[] PING = new byte[] { 1, 0, 0, 0, 14 };    
    @Override
    public int calcPacketSize() {        
    return 1;
    }    @Override
    protected String getPacketInfo() {        
    return "MySQL Ping Packet";
    }

}

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