mysql 協定的process kill套件及解析

git

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

概況

# mysql客戶端可以用process kill指令讓服務端終止某個連接，正常會回傳ok包。

mysql通訊封包結構

Payload

1              [0c] COM_PROCCESS_KILL4              connection id

/**
 * 
 * <pre class="brush:php;toolbar:false"><b>mysql process kill packet.</b>

* @author *

seaboat

*

<b>email: </b>849586227@qq.com

*

<b>blog: </b>//m.sbmmt.com/;/pre>
 * @version 1.0
 * @see //m.sbmmt.com/
 */public class ProcessKillPacket extends MySQLPacket {

    public byte flag = (byte) 0xfe;    public int connectionId;    @Override
    public void read(byte[] data) {
        MySQLMessage mm = new MySQLMessage(data);
        packetLength = mm.readUB3();
        packetId = mm.read();
        flag = mm.read();
        connectionId = mm.readInt();
    }    @Override
    public void write(ByteBuffer buffer) {        int size = calcPacketSize();
        BufferUtil.writeUB3(buffer, size);
        buffer.put(packetId);
        buffer.put(COM_PROCESS_KILL);
        BufferUtil.writeInt(buffer, connectionId);
    }    @Override
    public int calcPacketSize() {        return 5;
    }    @Override
    protected String getPacketInfo() {        return "MySQL Process Kill Packet";
    }

}

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