MySQL 服务器 API
¥MySQL Server API
服务器
¥Server
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createServer()- 创建服务器实例¥ createServer()- creates server instance
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Server.listen- 监听端口/unix 套接字(与 net.Server.listen 相同的参数)¥ Server.listen- listen port / unix socket (same arguments as net.Server.listen)
事件
¥Events
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connect - 
新的传入连接。 ¥new incoming connection. 
 
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连接
¥Connection
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serverHandshake({ serverVersion, protocolVersion, connectionId, statusFlags, characterSet, capabilityFlags })- 
发送服务器握手初始化数据包,等待握手响应并开始监听命令 ¥send server handshake initialisation packet, wait handshake response and start listening for commands 
 
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writeOk({ affectedRows: num, insertId: num })
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writeEof(warnings, statusFlags)- 
发送 EOF 数据包 ¥send EOF packet 
 
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writeTextResult(rows, fields)- 
将查询结果写入客户端。行和字段的格式与 connection.query回调中的格式相同。¥write query result to client. Rows and fields are in the same format as in connection.querycallback.
 
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writeColumns(fields)- 
写入字段 + EOF 数据包。 ¥write fields + EOF packets. 
 
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writeTextRow(row)- 
将值的数组(不是哈希!)写入结果行 ¥write array (not hash!) of values as result row 
 
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TODO:二进制协议 ¥TODO: binary protocol 
事件
¥Events
服务器收到的每个命令包都将作为带有以下参数的数据包事件触发:
¥Every command packet received by the server will be emitted as a packet event with the parameters:
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数据包:数据包 ¥packet: Packet - 
数据包本身 ¥The packet itself 
 
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已知命令:boolean ¥knownCommand: boolean - 
服务器是否知道此命令 ¥is this command known to the server 
 
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*commandCode:number - 
解析的命令代码(第一个字节) ¥the parsed command code (first byte) 
 
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此外,还会为从客户端接收到的 commands 触发特殊事件。如果没有监听器,将调用回退行为。
¥In addition special events are emitted for commands received from the client. If no listener is present a fallback behavior will be invoked.
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quit()- 
默认:关闭连接 ¥Default: close the connection 
 
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init_db(schemaName: string)- 
默认:返回 OK ¥Default: return OK 
 
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query(sql: string)- 
请将监听器附加到此处。默认:返回 HA_ERR_INTERNAL_ERROR ¥Please attach a listener to this. Default: return HA_ERR_INTERNAL_ERROR 
 
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field_list(table: string, fields: string)- 
默认:返回 ER_WARN_DEPRECATED_SYNTAX ¥Default: return ER_WARN_DEPRECATED_SYNTAX 
 
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ping()- 默认:返回 OK¥ ping()- Default: return OK