Flex+Spring配置

????flex拓扑图制作只是一个简单的例子，可以运行，只是简单的呈现部分，如果要实现具体的拓扑图的功能，需要连接数据库，这里只简单说说flex与spring的结合，有了spring，再与hibernate以及struts就简单多了。
???? 1、首先是web.xml需要添加flex的配置，增加如下的内容：
?????

<listener>
        <listener-class>flex.messaging.HttpFlexSession</listener-class>
    </listener> 
    
    <!-- MessageBroker Servlet -->
    <servlet>
        <servlet-name>MessageBrokerServlet</servlet-name>
        <display-name>MessageBrokerServlet</display-name>
        <servlet-class>flex.messaging.MessageBrokerServlet</servlet-class>
        <init-param>
            <param-name>services.configuration.file</param-name>
            <param-value>/WEB-INF/flex/services-config.xml</param-value>
       </init-param>
        <init-param>
            <param-name>flex.write.path</param-name>
            <param-value>/WEB-INF/flex</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet>
        <servlet-name>FlexMxmlServlet</servlet-name>
        <display-name>MXML Processor</display-name>
        <description>Servlet wrapper for the Mxml Compiler</description>
        <servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
        <init-param>
            <param-name>servlet.class</param-name>
            <param-value>flex.webtier.server.j2ee.MxmlServlet</param-value>
        </init-param>
        <init-param>
            <param-name>webtier.configuration.file</param-name>
            <param-value>/WEB-INF/flex/flex-webtier-config.xml</param-value>
        </init-param>
       <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet>
        <servlet-name>FlexSwfServlet</servlet-name>
        <display-name>SWF Retriever</display-name>
        <servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
        <init-param>
            <param-name>servlet.class</param-name>
            <param-value>flex.webtier.server.j2ee.SwfServlet</param-value>
        </init-param>
        <!-- SwfServlet must be initialized after MxmlServlet -->
        <load-on-startup>2</load-on-startup>
    </servlet>

    <servlet>
        <servlet-name>FlexForbiddenServlet</servlet-name>
        <display-name>Prevents access to *.as/*.swc files</display-name>
        <servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
        <init-param>
            <param-name>servlet.class</param-name>
            <param-value>flex.webtier.server.j2ee.ForbiddenServlet</param-value>
        </init-param>
    </servlet>

    <servlet>
        <servlet-name>FlexInternalServlet</servlet-name>
        <servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
        <init-param>
            <param-name>servlet.class</param-name>
            <param-value>flex.webtier.server.j2ee.filemanager.FileManagerServlet</param-value>
        </init-param>
        <load-on-startup>10</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>MessageBrokerServlet</servlet-name>
        <url-pattern>/messagebroker/*</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>FlexMxmlServlet</servlet-name>
        <url-pattern>*.mxml</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>FlexSwfServlet</servlet-name>
        <url-pattern>*.swf</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>FlexForbiddenServlet</servlet-name>
        <url-pattern>*.as</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>FlexForbiddenServlet</servlet-name>
        <url-pattern>*.swc</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>FlexInternalServlet</servlet-name>
        <url-pattern>/flex-internal/*</url-pattern>
    </servlet-mapping>
    

??? 2、在spring的配置文件中增加：
???

    <bean id="topoMapViewService" parent="baseTransaction">
                <property name="target">
                        <bean
                                class="com.jeffrey.nms.service.impl.TopoServiceImpl"><!---这里的方法可以通过flex进行调用--->
                                <property name="topoMapDao" ref="topoMapDao" />
                                <property name="linkInfoDao" ref="linkInfoDao" />
                        </bean>
                </property>
        </bean>
    

??? 3、然后需要配置flex的配置文件，flex文件下有个services-config.xml，
增加：
???

    <factories>
      <factory id="spring" class="com.jeffrey.nms.web.topo.SpringFactory"/>
    </factories>
    

??? 其中类如下（通过网上查的）
????

    package com.jeffrey.nms.web.topo;

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,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;
            } 
        }
        
    } 

} 
    

??? 4、本人做flex时是使用的直接调用java的运程类，以下都是按照这个配置的，还有一个webservice的方法，各位可以收集收集。
???? 在flex文件夹下有个remoting-config.xml文件，需要增加：
????

     <destination id="topoMap">
    <properties>
        <factory>spring</factory>
        <source>topoMapViewService</source>
    </properties>
   </destination>
    

???? 这样topoMap可以在flex进行定义了，如下： ?? <mx:RemoteObject id="topo" destination="topoMap"> ?? 这样flex+spring配置即完成。