AS3 IOC框架Spring Actionscript 的使用总结

Spring Actionscript 是众多围绕依赖注入提供解决方案的Flex控制反转框架之一

AS3 下经典的IOC框架有Spring ActionScript、Parsley、Flicc和Swiz，由于我对JAVA spring IOC机制较为熟悉，所以选择了 Spring ActionScript。

主要有XML配置（XML）和注释元数据（Metadata）配置两种方式，下面一一介绍，例子是基于spring AS 2.0.1版本展开的。--流子

1.从​​Spring Actionscript 主页​​下载依赖包 

spring-actionscript-core-X.X.X.swc

spring-actionscript-flex-X.X.X.swc

另有as3commons依赖包需要下载。建议下载这个 

​​Spring Actionscript X.X.X Full​​ (with dependencies and Flex extensions)

2.1 XML配置方式

配置文件application-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<objects xmlns="http://www.springactionscript.org/schema/objects"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springactionscript.org/schema/objects
  http://www.springactionscript.org/schema/objects/spring-actionscript-objects-2.0.xsd">
  <object id="ConfigManager" class="com.yimi.fairy.client.ConfigManager"
    init-method="initialize">
    <!--<constructor-arg ref="authenticationService"/> 构造函数时引入 -->
  </object>
  <object id="RoleManager" class="com.yimi.fairy.client.service.role.RoleManager"
    init-method="initialize">
    <property name="configManager" ref="ConfigManager" />
  </object>
  <object id="ResourceManager" class="com.yimi.fairy.client.res.ResourceManager"></object>
  <object id="JobManager" class="com.yimi.fairy.client.job.JobManager"></object>
  <object id="RoleDataTemplateManager" class="com.service.role.RoleDataTemplateManager">
  <constructor-arg ref="ResourceManager"/> 
  </object>
</objects>

程序载入：

var context:XMLApplicationContext=new XMLApplicationContext("application-context.xml");
context.addEventListener(Event.COMPLETE, this.handleComplete);  
context.load();

对容器中对象读取:

var configManager:ConfigManager=context.getObject("ConfigManager");

2.2 注释元数据（Metadata）配置方式

优点:把application-context.xml 完全干掉，完全通过注释方式实现。它是对加载进来的SWF文件进行类扫描把[Component] 或者[Configuration] 读取并解析进IOC容器。

首先，要添加编译参数 -keep-as3-metadata+=Component,Invoke,Inject,Autowired

程序载入：

var rootViews:Vector.<DisplayObject> = new <DisplayObject>[display];
var context:MetadataApplicationContext= new MetadataApplicationContext(rootViews);
context.addEventListener(Event.COMPLETE, this.handleComplete);
context.load();

对象配置:

[Component(id="roleDataTemplateManager",initMethod="initialize")]
public class RoleDataTemplateManager implements IResourceLoader
{
  [Autowired]
  public var resourceManager:ResourceManager;
  public function initialize():void
  {
    resourceManager.register(this);
  }
}

注意注入进去的对象必须是public,否则注不进去。

对象读取:

var configManager:ConfigManager=context.getObject("configManager");

2.3 如何注入第三方库中的对象

创建一个对象，比如AppConfig

[Configuration]
public final class AppConfig {
  public var stageAutowireProcessor:DefaultAutowiringStageProcessor;
  public var eventHandlerMetadataProcessor:EventHandlerMetadataProcessor;
  public var routeEventsMetadataProcessor:RouteEventsMetaDataProcessor;
  }

Reference:

​​Spring AS Document​​