所谓独创的能力，就是经过深思的模仿。
最近由于制作任务编辑器，需要连接到数据库中进行一些任务数据的操作，而我们存放任务数据的数据库中MYSQL，所以就找了一下AS3接连MYSQL数据库的资料。
找到一个好东西：ActionScript 3 MySql Driver，用SVN的童鞋可以直接checkout:
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)：
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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;
}
}
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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 DataBaseextends 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 (resultis ResultSet)
{
var fieldList:Array = result.getColumns();
while (result.next())
{
var item:Object = {};
for each (var field:Fieldin 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();
}
}
}
}
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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：
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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));
}
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如果不需要用了可以先断开连接：
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dataBase.disconnect();
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下面是select语句：
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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);
}
}
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insert语句用法会返回一个insertID，也就是插入的那条数据的ID。
出处：http://www.cnblogs.com/yili16438/
