https://github.com/sea-boat/mysql-protocol
mysql客户端通过删除DB命令包告诉服务端删除某个schema。
类型 | 名字 | 描述 |
---|---|---|
int<3> | payload长度 | 按照the least significant byte first存储,3个字节的payload和1个字节的序列号组合成报文头 |
int<1> | 序列号 | |
string | payload | 报文体,长度即为前面指定的payload长度 |
Payload
1 [06] COM_DROP_DBstring[EOF] schema name
更多详情 : http://dev.mysql.com/doc/internals/en/com-drop-db.html
删除DB命令包类
/** * * <pre class="brush:php;toolbar:false"><b>mysql drop db packet.</b>* @author *
seaboat*
<b>email: </b>849586227@qq.com*
<b>blog: </b>http://www.php.cn/;/pre> * @version 1.0 * @see http://www.php.cn/ */public class DropDBPacket extends MySQLPacket { public byte flag; public byte[] schema; @Override public void read(byte[] data) { MySQLMessage mm = new MySQLMessage(data); packetLength = mm.readUB3(); packetId = mm.read(); flag = mm.read(); this.schema = mm.readBytes(); } @Override public void write(ByteBuffer buffer) { BufferUtil.writeUB3(buffer, calcPacketSize()); buffer.put(packetId); buffer.put(COM_DROP_DB); buffer.put(schema); } @Override public int calcPacketSize() { int i = 1; i += schema.length; return i; } @Override protected String getPacketInfo() { return "MySQL Drop DB Packet"; } }
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