View页面中
<mx:RemoteObject id="userManagementDataService" destination="UserManagementDataService"/>
2、
destination 对应于remote-config.xml中的destination节点
remote-config.xml
<destination id="UserManagementDataService"> <properties> <factory>mySpring</factory> <source>UserManagementDataService</source> </properties> </destination>
<factory>mySpring</factory>
就是通过它调用applicationContext.xml 中bean节点的,
<source>UserManagementDataService</source>
对应于bean节点的id
3、
mySpring是自己写的类,在services-config.xml中有相应的配置
<factories> <factory id="mySpring" class="springFactory.SpringFactory"/> </factories>
4、
这里的 class 是要自己写的类,也就是 SpringFactory 类
(注意这里要引入jar包 spring.jar(WebApplicationContextUtils))
(可能还要引的包有 commons-dbcp.jar , commons-pool-1.4.jar)
package springFactory; 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.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; } 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; } } } }
5、
在Web.xml中配置 applicationContext.xml的监听
<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>
6、在applicationContext.xml 中配置
<bean id="UserManagementDataService" class="dataService.UserManagementDataService"> </bean>
在页面中通过RemoteObject 通过Spring来调用J2EE中的方法了