git

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

概况

ResultsetRow包属于服务端返回ResultSet时的其中一部分包，用于描述结果集的行记录。

mysql通信报文结构

ResultsetRow包

Payload

if(NULL){0xfb
}else{Protocol::LengthEncodedString
}

更多详情 ： http://dev.mysql.com/doc/internals/en/com-query-response.html#text-resultset

ResultsetRow包类

/*** * <pre><b>resultset row packet.</b></pre>* @author * <pre>seaboat</pre>* <pre><b>email: </b>849586227@qq.com</pre>* <pre><b>blog: </b>http://blog.csdn.net/wangyangzhizhou</pre>* @version 1.0* @see http://dev.mysql.com/doc/internals/en/com-query-response.html#text-resultset*/
public class ResultsetRowPacket extends MySQLPacket {private static final byte NULL_MARK = (byte) 251;public int columnCount;public List<byte[]> columnValues;public ResultsetRowPacket() {}public ResultsetRowPacket(int columnCount) {this.columnCount = columnCount;}@Overridepublic void read(byte[] data) {MySQLMessage mm = new MySQLMessage(data);packetLength = mm.readUB3();packetId = mm.read();for (int i = 0; i < columnCount; i++) {columnValues.add(mm.readBytesWithLength());}}@Overridepublic void write(ByteBuffer buffer) {BufferUtil.writeUB3(buffer, calcPacketSize());buffer.put(packetId);for (int i = 0; i < columnCount; i++) {byte[] fv = columnValues.get(i);if (fv == null) {buffer.put(NULL_MARK);} else {BufferUtil.writeLength(buffer, fv.length);buffer.put(fv);}}}@Overridepublic int calcPacketSize() {int size = 0;for (int i = 0; i < columnCount; i++) {byte[] v = columnValues.get(i);size += (v == null || v.length == 0) ? 1 : BufferUtil.getLength(v);}return size;}@Overrideprotected String getPacketInfo() {return "MySQL Resultset Row Packet";}}

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