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如何将AS3连接到MySQL数据库上

2011年04月27日 IT运维 ⁄ 共 4079字 暂无评论 ⁄ 被围观 12+

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。

扩展阅读:

ActionScript简称“AS”——动作脚本,是遵循 ECMAscript第四版 的 Adobe Flash Player 运行时环境的编程语言。它在 Flash 内容和应用程序中实现交互性、数据处理以及其他功能。 ActionScript是Flash的脚本语言,与JavaScript相似,ActionScript是一种编程语言,新出的AS3.0使用OOP(面对对象编程),增加更强的报错能力,指定类型也更明确。

找到一个好东西:ActionScript 3 MySql Driver,用SVN的童鞋可以直接checkout:

http://assql.googlecode.com/svn/trunk/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):

[php]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();

}

}

}

}
[/php]

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:
[php]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)); }[/php]

如果不需要用了可以先断开连接:
[php]dataBase.disconnect();[/php]

下面是select语句:
[php]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。[/php]

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