Flex整合Spring

工程需要整合Spring和Flex，在网上众多方法中找到了下面这种，记录留存。

个人认为该方法更适合在已有Spring框架的工程中添加Flex时使用，对原工程内容(主要指配置文件)改动较小。

1.添加Spring，在web.xml文件里添加配置

<context-param>

    <param-name>contextConfigLocation</param-name>

    <param-value>/WEB-INF/applicationContext.xml</param-value>

</context-param>

<listener>

 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

2.在flex的services-config.xml文件里添加Spring工厂

<factories>

    <factory id="spring" class="com.flex.factories.SpringFactory"/>

</factories>

3.在Spring里面定义bean

<bean id="testClass" class="com.....TestService">

    <property name="dataSource" ref="dataSource"/>

</bean>

4.在flex的远程对象配置文件里配置远程对象，这里要指定远程对象的创建工厂为第2步配置的工厂，远程对象的source要指向Spring里定义的bean

<destination id="test">

    <properties>

        <factory>spring</factory>

        <source>testClass</source>

    </properties>

</destination>

5.在页面就可以使用远程对象了

private function send():void{

    test.doSomething(...);

}

附：需要的SpringFactory

import org.springframework.context.ApplicationContext;

import org.springframework.web.context.support.WebApplicationContextUtils;

import org.springframework.beans.BeansException;

import org.springframework.beans.factory.NoSuchBeanDefinitionException;  

import flex.messaging.FactoryInstance;

import flex.messaging.FlexFactory;

import flex.messaging.config.ConfigMap;

import flex.messaging.services.ServiceException;  

public class SpringFactory implements FlexFactory

{

    private static final String SOURCE = "source";  

    public void initialize(String id, ConfigMap configMap) {}  

    public FactoryInstance createFactoryInstance(String id, ConfigMap properties)

    {

        SpringFactoryInstance instance = new SpringFactoryInstance(this, id, properties);

        instance.setSource(properties.getPropertyAsString(SOURCE, instance.getId()));

        return instance;

    } // end method createFactoryInstance()  

    public Object lookup(FactoryInstance inst)

    {

        SpringFactoryInstance factoryInstance = (SpringFactoryInstance) inst;

        return factoryInstance.lookup();

    }  

    static class SpringFactoryInstance extends FactoryInstance

    {

        SpringFactoryInstance(SpringFactory factory, String id, ConfigMap properties)

        {

            super(factory, id, properties);

        }  

        public String toString()

        {

            return "SpringFactory instance for id=" + getId() + " source=" + getSource() + " scope=" + getScope();

        }  

        public Object lookup()

        {

            ApplicationContext appContext = WebApplicationContextUtils.getWebApplicationContext(flex.messaging.FlexContext.getServletConfig().getServletContext());

            String beanName = getSource();  

            try

            {

                return appContext.getBean(beanName);

            }

            catch (NoSuchBeanDefinitionException nexc)

            {

                ServiceException e = new ServiceException();

                String msg = "Spring service named '" + beanName + "' does not exist.";

                e.setMessage(msg);

                e.setRootCause(nexc);

                e.setDetails(msg);

                e.setCode("Server.Processing");

                throw e;

            }

            catch (BeansException bexc)

            {

                ServiceException e = new ServiceException();

                String msg = "Unable to create Spring service named '" + beanName + "' ";

                e.setMessage(msg);

                e.setRootCause(bexc);

                e.setDetails(msg);

                e.setCode("Server.Processing");

                throw e;

            }

        }  

    }  

}

巴特西

Flex整合Spring

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