| 類型 | 名字 | 描述 |
|---|---|---|
| int3> | payload長度 | 按照the least significant byte first存儲,3個字節的payload和1個字節的序列號組合成報文頭 |
| int1> | 序列號 | |
| string | payload | 報文體,長度即為前面指定的payload長度 |
ping命令包
Payload
[0e] COM_PING
更多詳情 : http://dev.mysql.com/doc/internals/en/com-ping.html
ping命令包類
/**
*
* @author seaboat
* @date 2016-09-25
* @version 1.0
* pre>b>email: /b>849586227@qq.com/pre>
* pre>b>blog: /b>http://blog.csdn.net/wangyangzhizhou/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";
}
}
源碼下載:http://xiazai.jb51.net/201701/yuanma/mysql-protocol-master(jb51.net).rar
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