as3.0怎么连接mysql数据库

为了使用简单，我做了一个简单的包装类(包含一个数据结构)：

package com.easily.ds
{
public class DataBaseData
{
public var host:String;
public var port:int;
public var username:String;
public var password:String;
public var database:String;
}
}
package com.easily.util
{
import com.easily.ds.DataBaseData;
import com.maclema.mysql.Connection;
import com.maclema.mysql.Field;
import com.maclema.mysql.MySqlResponse;
import com.maclema.mysql.MySqlToken;
import com.maclema.mysql.ResultSet;
import com.maclema.mysql.Statement;

import flash.events.Event;
import flash.events.EventDispatcher;

import mx.rpc.AsyncResponder;

/**
* @author Easily
*/
public class DataBase extends EventDispatcher
{
private var mDataBase:DataBaseData;
private var mConnection:Connection;

public function DataBase(database:DataBaseData)
{
mDataBase = database;
}

public function connect():void
{
mConnection = new Connection(mDataBase.host, mDataBase.port,
mDataBase.username, mDataBase.password, mDataBase.database);
mConnection.addEventListener(Event.CONNECT, onConnected);

mConnection.connect();

function onConnected(event:Event):void
{
mConnection.removeEventListener(Event.CONNECT, onConnected);

dispatchEvent(event);
}
}

public function disconnect():void
{
mConnection.disconnect();
}

public function select(sql:String, completeHandler:Function, errorHandler:Function = null):void
{
var st:Statement = mConnection.createStatement();
var token:MySqlToken = st.executeQuery(sql);
var responder:AsyncResponder = new AsyncResponder(resultHandler, faultHandler, token);
token.addResponder(responder);

function resultHandler(result:Object/*ResultSet*/, token:Object/*MySqlToken*/):void
{
var data:Array = [];

if (result is ResultSet)
{
var fieldList:Array = result.getColumns();
while (result.next())
{
var item:Object = {};
for each (var field:Field in fieldList)
{
item[field.getName()] = result.getString(field.getName());
}
data.push(item);
}
}

completeHandler(data);
}

function faultHandler(info:Object, token:Object):void
{
if (errorHandler == null) return;

errorHandler();
}
}

public function insert(sql:String, completeHandler:Function, errorHandler:Function = null):void
{
var st:Statement = mConnection.createStatement();
var token:MySqlToken = st.executeQuery(sql);
var responder:AsyncResponder = new AsyncResponder(resultHandler, faultHandler, token);
token.addResponder(responder);

function resultHandler(result:Object/*MySqlResponse*/, token:Object/*MySqlToken*/):void
{
completeHandler(result.insertID);
}

function faultHandler(info:Object, token:Object):void
{
if (errorHandler == null) return;

errorHandler();
}
}

public function remove(sql:String, completeHandler:Function, errorHandler:Function = null):void
{
var st:Statement = mConnection.createStatement();
var token:MySqlToken = st.executeQuery(sql);
var responder:AsyncResponder = new AsyncResponder(resultHandler, faultHandler, token);
token.addResponder(responder);

function resultHandler(result:Object/*MySqlResponse*/, token:Object/*MySqlToken*/):void
{
completeHandler();
}

function faultHandler(info:Object, token:Object):void
{
if (errorHandler == null) return;

errorHandler();
}
}
}
}
其中有3个方法，select,insert,remove，分别对应了SQL语句中的select,insert,delete

用法很简单，先连接：

var databaseData:DataBaseData = new DataBaseData();
databaseData.host = "127.0.0.1";
databaseData.database = "game";
databaseData.password = "123456";
databaseData.port = 3306;
databaseData.username = "root";

var dataBase:DataBase = new DataBase(databaseData);
dataBase.addEventListener(Event.CONNECT, onConnected);
dataBase.connect();

function onConnected(event:Event):void
{
dataBase.removeEventListener(Event.CONNECT, onConnected);

dispatchEvent(new Event(Event.COMPLETE));
}
如果不需要用了可以先断开连接：

dataBase.disconnect();
下面是select语句：

var sql:String = "select id,name from `npc`";
dataBase.select(sql, endQuery);

function endQuery(data:Array):void
{
var npcList:Array= [];
for each (var item:Object in data)
{
var npc:Object = {id:item.id, name:item.name};

npcList.push(npc);
}
}
insert语句用法会返回一个insertID，也就是插入的那条数据的ID。