基于blazeDS的flex4与spring的程序实例步骤

环境：
jdk1.6
j2ee1.5
spring2.5.6
blazeDS3.3
tomcat6.0
flex4
myeclipse8.5
flashBuilder4

步骤：
一、 启动好blazeDS(即启动tomcat，在[tomcat]/webapps目录下产生一个blazeds文件夹(三个war包产生一个blazeds文件夹))；
在myeclipse8.5新建一个web Project工程，工程名为webSpring；
把此工程加入blazeDS支持(即用blazeds下的WEB-INF文件夹替换掉web工程下的WEB-INF文件夹)；
加入spring支持(把spring相关的jar包拷贝到webSpring/WebRoot/WEB-INF/lib目录下即可)。

二、 1. 在javaWeb工程webSpring的str目录下分别新建一下两个包：
cn.xuediit.myFactory、cn.xuediit.myService；
2. 在cn.xuediit.myFctory包下新建两个类：FlexFactoryImpl.java和SpringFactoryInstance.java
FlexFactoryImpl.java：

package cn.xuediit.myFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import flex.messaging.FactoryInstance;
import flex.messaging.FlexFactory;
import flex.messaging.config.ConfigMap;

public class FlexFactoryImpl implements FlexFactory {
private Log log = LogFactory.getLog(getClass());

/*override interface method*/
public void initialize(String id, ConfigMap configMap) {
System.out.println("1---flex工厂实现类重写的方法initialize");
}

/*override interface method*/
public FactoryInstance createFactoryInstance(String id, ConfigMap properties) {
System.out.println("2---flex工厂实现类重写的方法createFactoryInstance");
log.info("Create FactoryInstance.");
SpringFactoryInstance instance = new SpringFactoryInstance(this, id, properties);
instance.setSource(properties.getPropertyAsString(SOURCE, instance.getId()));
return instance;
}

/*override interface method*/
public Object lookup(FactoryInstance instanceInfo) {
System.out.println("4---flex工厂实现类重写的方法lookup");
log.info("Lookup service object.");
return instanceInfo.lookup();
}

}

SpringFactoryInstance.java

package cn.xuediit.myFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
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.FlexContext;
import flex.messaging.FlexFactory;
import flex.messaging.config.ConfigMap;
import flex.messaging.services.ServiceException;

public class SpringFactoryInstance extends FactoryInstance {
private Log log = LogFactory.getLog(getClass());

SpringFactoryInstance(FlexFactory factory, String id, ConfigMap properties) {
super(factory, id, properties);
}

public Object lookup() {
System.out.println("3---spring工厂类的方法lookup");
ApplicationContext appContext = WebApplicationContextUtils.getRequiredWebApplicationContext(FlexContext.getServletConfig().getServletContext());
String beanName = getSource();
try {
log.info("Lookup bean from Spring ApplicationContext: " + beanName);
return appContext.getBean(beanName);
} catch (NoSuchBeanDefinitionException nex) {
ServiceException e = new ServiceException();
String msg = "Spring service named '" + beanName + "' does not exist.";
e.setMessage(msg);
e.setRootCause(nex);
e.setDetails(msg);
e.setCode("Server.Processing");
throw e;
} catch (BeansException bex) {
ServiceException e = new ServiceException();
String msg = "Unable to create Spring service named '" + beanName + "'.";
e.setMessage(msg);
e.setRootCause(bex);
e.setDetails(msg);
e.setCode("Server.Processing");
throw e;
} catch (Exception ex) {
ServiceException e = new ServiceException();
String msg = "Unexpected exception when trying to create Spring service named '" + beanName + "'.";
e.setMessage(msg);
e.setRootCause(ex);
e.setDetails(msg);
e.setCode("Server.Processing");
throw e;
}
}

}

3. 在cn.xuediit.myService包下新建两个类：FService.java和FServicesImpl.java (1). FService.java

package cn.xuediit.myService;

public interface FService {
public String sayHello(String name);
}

(2). FServicesImpl.java

package cn.xuediit.myService;

public class FServicesImpl implements FService {
public String sayHello(String name) {
System.out.println("5---服务层实现类（本质上的与flex交互的类）");
return "我是服务层的服务实现类==" + name;
}

}

三、 1、 在javaWeb工程webSpring下，在文件webSpring/WebRoot/WEB-INF/web.xml的<web-app>标签下添加子节点：

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

2、 在javaWeb工程webSpring下，在webSpring/WebRoot/WEB-INF目录下新建一个文件：applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> 
<bean id="fServiceImplBeanID" class="cn.xuediit.myService.FServicesImpl"></bean>

</beans>

四、 1、 在javaWeb工程webSpring下，在WebRoot/WEB-INF/flex/remoting-config.xml文件中的<service>标签下添加：

<destination id="destinationID">
<properties>
<factory>flexFactoryImplID</factory>
<source>fServiceImplBeanID</source>
<scope>application</scope>
</properties>
</destination>

2、 在javaWeb工程webSpring下，在WebRoot/WEB-INF/flex/services-config.xml文件中的<services-config>标签下添加：

<factories>
<factory id="flexFactoryImplID" class="cn.xuediit.myFactory.FlexFactoryImpl"/>
</factories>

五、 给此javaWeb工程添加tomcat支持，启动tomcat（这个容易就不说了）。六、 在flashBuilder下新建一个基于blazeDS的flex项目(以webSpring为后台工程)，工程名为webFb；  

webFb.mxml：

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/halo"
minWidth="500" minHeight="200">

<fx:Script>
<![CDATA[
import mx.core.Application;
import mx.rpc.events.FaultEvent;
import mx.collections.ArrayCollection;
import mx.rpc.remoting.mxml.RemoteObject;
import mx.controls.Alert;
import mx.rpc.events.ResultEvent;

public function submit(name:String):void{
var remote:RemoteObject = new RemoteObject();
remote.destination = "destinationID";
remote.endpoint = "http://localhost:8080/webSpring/messagebroker/amf";
remote.addEventListener(ResultEvent.RESULT, myResult);
remote.addEventListener(FaultEvent.FAULT,fault);
remote.sayHello(name);
}

private function myResult(evt:ResultEvent):void{
Alert.show(evt.result.toString());
}

private function fault(evt:FaultEvent):void{
Alert.show(evt.fault.message);
}

]]>
</fx:Script>

<s:Button x="240" y="11" label="要发送到" click="submit(nameTxt.text)"/>
<s:Label x="16" y="11" text="姓名"/>
<s:TextInput id="nameTxt" x="100" y="100"/>

</s:Application>

转自：http://zhidao.baidu.com/question/378329977.html