采用的架构 BlazeDS + Spring + Hibernate

以下是一个Flex页面访问RemoteObject的代码：

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
    <mx:Script>
        <![CDATA[
            import mx.rpc.events.ResultEvent;
            import mx.controls.Alert;
            private function callRO(str:String):void{
                Alert.show("flexSpringBeanTest");
                firstRO.say(str);
                firstRO.addEventListener(ResultEvent.RESULT,getROResult);
            }

            private function getROResult(e:ResultEvent) :void {
                Alert.show(e.result.toString());
            }
            //flexObjectTest
        ]]>
    </mx:Script>

    <mx:RemoteObject id="firstRO" destination="flexSpringBeanTest"/>
    <mx:TextInput x="109" y="28" id="input" text="hello!"/>
    <mx:Button x="270" y="28" click="callRO(input.text)" label="请求"/>
</mx:Application>

 

   在remote-config.xml配置里，映射一个Spring管理的Bean是这么写的

<destination id="flexSpringBeanTest">
      <properties>
              <factory>springFactory</factory>
              <source>flexObjectTest</source>
      </properties>
</destination>

 

    在services-config.xml配置自定义的SpringFactory类,即我们要实现从从spring容器中去取得bean。

<factories>
      <factory id="springFactory" class="cn.org.coral.core.flex.factory.FlexSpringFactory" />
</factories>

    这个工厂类的定义:

package cn.org.coral.core.flex.factory;

import flex.messaging.FactoryInstance;
import flex.messaging.FlexFactory;
import flex.messaging.config.ConfigMap;

/**
 * 要对某个java类实现自己定义的切入，可以使用工厂配置，需要在ro访问前，从spring里去getbean<br>
 *
 * @author Libin
 *
 */
public class FlexSpringFactory implements FlexFactory{

    @Override
    public FactoryInstance createFactoryInstance(String id, ConfigMap properties){
        SpringFactoryInstance instance = new SpringFactoryInstance(this, id, properties);
        instance.setSource(properties.getPropertyAsString(SOURCE, instance.getId()));
        return instance;
    }
    @Override
    public Object lookup(FactoryInstance inst)  {
        SpringFactoryInstance factoryInstance = (SpringFactoryInstance) inst;
        return factoryInstance.lookup();
    }

    @Override
    public void initialize(String arg0, ConfigMap arg1) {
        // TODO Auto-generated method stub

    }

}

 

该factory需要实现FlexFactory接口。实现createFactoryInstance方法和lookup方法

package cn.org.coral.core.flex.factory;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import flex.messaging.FactoryInstance;
import flex.messaging.config.ConfigMap;
import flex.messaging.services.ServiceException;

public class SpringFactoryInstance extends FactoryInstance
{
    SpringFactoryInstance(FlexSpringFactory factory, String id, ConfigMap properties)
    {
        super(factory, id, properties);
    }
    public Object lookup()
    {
        //这就是从spring容器中getbean了
        ApplicationContext appContext = WebApplicationContextUtils.getWebApplicationContext(flex.messaging.FlexContext.getServletConfig().getServletContext());
        String beanName = getSource();

        try
        {
            return appContext.getBean(beanName);
        }
        catch (NoSuchBeanDefinitionException nexc)
        {
            ServiceException e = new ServiceException();
            throw e;
        }
        catch (BeansException bexc)
        {
            ServiceException e = new ServiceException();
            throw e;
        }
    }

}

 

   后台service的定义：

package cn.org.coral.sample.flex.manager;

public class FlexObjectTest {

    public String say(String str){
        return "say : " + str;
    }

}

 

  spring-context.xml的配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>

    <bean id="flexObjectTest"
        class="cn.org.coral.sample.flex.manager.FlexObjectTest">
    </bean>

</beans>

 来源：http://lib.iteye.com/blog/202193

另参考：http://jfp.iteye.com/blog/257964