Flex 与spring的结合

最新推荐文章于 2014-07-08 17:34:34 发布

guo_lei

最新推荐文章于 2014-07-08 17:34:34 发布

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文章标签： Flex Spring Bean XML Web

本文链接：https://blog.youkuaiyun.com/guo_lei/article/details/83525186

本文介绍如何通过SpringFactory实现Spring框架与Flex应用的集成。首先下载并配置SpringFactory.java，然后在services-config.xml中注册工厂，并在applicationContext.xml中定义bean。通过remoting-config.xml配置目的地，最终实现在Flex前端调用Spring管理的服务。

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与spring的结合
首先下载springFactory.java,内容如下：

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;
            }
        }

    }

}
接着在services-config.xml里加入：
    <factories>
      <factory id="spring" class="包名.SpringFactory"/>
</factories>
我们在applicationContext.xml里配置bean
    <bean id="testFactory" class="HelloWorld"/>
在remoting-config.xml里加入：
     <destination id="testFac">
        <properties>
         <factory>spring</factory>
          <source>testFactory</source>
        </properties>
    </destination>
后台已经配置完毕，在前台：
    <mx:RemoteObject   id = "ro"    endpoint="/TestFlex/messagebroker/amf" destination="testFac" result = "resultHandler(event)"/>
可以看出remoting-config.xml里配置起到了中转的作用