普通Java Web工程流行使用ssh框架,而当前台使用Flex制作的时候,后台就不需要用Struts了,通过使用BlazeDS远程方法调用即可。
首先,新建Java Web工程,然后添加Flex项目,详情见通过J2EE Web工程添加Flex项目,进行BlazeDS开发 。
随后,导入Jar包,flex相关的jar包在添加Flex项目的时候已经导入,这里主要是导入Spring和Hibernate相关的jar包以及spring和flex集成的jar包,我用的是spring 3.0.3和hibernate 3.2.1。 下面是lib列表:
antlr-2.7.6.jar
asm-2.2.3.jarasm-commons-2.2.3.jarasm-util-2.2.3.jaraspectjlib.jaraspectjrt.jaraspectjweaver.jarbackport-util-concurrent.jarc3p0-0.9.1.jarcfgatewayadapter.jarcglib-nodep-2.1_3.jarcom.springsource.edu.emory.mathcs.backport-3.0.0.jarcom.springsource.net.sf.cglib-2.2.0.jarcom.springsource.org.aopalliance-1.0.0.jarcommons-codec-1.3.jarcommons-collections-3.1.jarcommons-httpclient-3.0.1.jarcommons-io-1.4.jarcommons-lang-2.3.jarcommons-logging.jardom4j-1.6.1.jarehcache-1.2.3.jarflex-messaging-common.jarflex-messaging-core.jarflex-messaging-opt.jarflex-messaging-proxy.jarflex-messaging-remoting.jarflex-rds-server.jarfreemarker-2.3.15.jarhibernate-commons-annotations-3.2.0.Final.jarhibernate-core-3.5.4-Final.jarhibernate-jpa-2.0-api-1.0.0.Final.jarjackson-lgpl-0.9.5.jarjavassist.jarjta-1.1.jarlog4j-1.2.15.jarmysql-connector-java-5.1.13-bin.jarorg.springframework.aop-3.0.3.RELEASE.jarorg.springframework.asm-3.0.3.RELEASE.jarorg.springframework.aspects-3.0.3.RELEASE.jarorg.springframework.beans-3.0.3.RELEASE.jarorg.springframework.context-3.0.3.RELEASE.jarorg.springframework.context.support-3.0.3.RELEASE.jarorg.springframework.core-3.0.3.RELEASE.jarorg.springframework.expression-3.0.3.RELEASE.jarorg.springframework.flex-1.0.3.RELEASE.jarorg.springframework.instrument-3.0.3.RELEASE.jarorg.springframework.instrument.tomcat-3.0.3.RELEASE.jarorg.springframework.jdbc-3.0.3.RELEASE.jarorg.springframework.jms-3.0.3.RELEASE.jarorg.springframework.orm-3.0.3.RELEASE.jarorg.springframework.oxm-3.0.3.RELEASE.jarorg.springframework.test-3.0.3.RELEASE.jarorg.springframework.transaction-3.0.3.RELEASE.jarorg.springframework.web-3.0.3.RELEASE.jarorg.springframework.web.portlet-3.0.3.RELEASE.jarorg.springframework.web.servlet-3.0.3.RELEASE.jarorg.springframework.web.struts-3.0.3.RELEASE.jarslf4j-api-1.5.8.jarslf4j-log4j12-1.5.8.jarxalan.jar
修改配置文件,web.xml,其中最重要的是修改原先MessegeBroker Servlet,改为由Spring web应用前端控制器处理所有请求。
代码<!-- MessageBroker Servlet 单独为Flex配置xml -->
< servlet >
< servlet-name > flex </ servlet-name >
< servlet-class >
org.springframework.web.servlet.DispatcherServlet
</ servlet-class >
< init-param >
< param-name > contextConfigLocation </ param-name >
< param-value >
/WEB-INF/config/flex-application-config.xml
</ param-value >
</ init-param >
< load-on-startup > 1 </ load-on-startup >
</ servlet >
<!--
Map all /messagbroker requests to the DispatcherServlet for handling
-->
< servlet-mapping >
< servlet-name > flex </ servlet-name >
< url-pattern > /messagebroker/* </ url-pattern >
</ servlet-mapping >
配置 flex-application-config.xml,注意增加的几个命名空间,需要包org.springframework.flex-1.0.3.RELEASE.jar,同时在这个文件里定义了bean,在mxml里面会引用到:
flex-application-config.xml<? xml version="1.0" encoding="UTF-8" ?>
< beans xmlns ="http://www.springframework.org/schema/beans"
xmlns:flex ="http://www.springframework.org/schema/flex"
xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation ="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/flex
http://www.springframework.org/schema/flex/spring-flex-1.0.xsd" >
<!-- Bootstraps and exposes the BlazeDS MessageBroker simplest form -->
< flex:message-broker />
< bean id ="test" class ="sample.Test" >
< property name ="userDAO" >
< ref bean ="userDAO" />
</ property >
< flex:remoting-destination />
</ bean >
</ beans >
hibernate的配置,用到c0p0.jar,
daoContext.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:p ="http://www.springframework.org/schema/p"
xsi:schemaLocation ="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd" >
<!-- 使用c3p0定义数据源Bean -->
< bean id ="dataSource" class ="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method ="close" >
< property name ="driverClass" value ="com.mysql.jdbc.Driver" />
< property name ="jdbcUrl" value ="jdbc:mysql://localhost:3306/db" />
< property name ="user" value ="user" />
< property name ="password" value ="pass" />
</ bean >
< bean id ="sessionFactory" class ="org.springframework.orm.hibernate3.LocalSessionFactoryBean" >
< property name ="dataSource" ref ="dataSource" ></ property >
< property name ="hibernateProperties" >
< props >
< prop key ="hibernate.dialect" >
org.hibernate.dialect.MySQLDialect
</ prop >
< prop key ="hibernate.show_sql" >
true
</ prop >
< prop key ="hibernate.format_sql" >
true
</ prop >
< prop key ="hibernate.show_statistics" >
false
</ prop >
</ props >
</ property >
< property name ="mappingResources" >
< list >
< value > sample/dao/User.hbm.xml </ value >
</ list >
</ property >
</ bean >
< bean id ="userDAO" class ="sample.dao.UserDAO" >
< property name ="sessionFactory" >
< ref bean ="sessionFactory" />
</ property >
</ bean >
</ beans >
test.mxml,这里主要是定义和调用远程对象,远程对象的bean在上面的flex-application-config.xml里面有定义,调用类sample.Test.java中的createUser方法。
<?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/mx" minWidth ="955" minHeight ="600" >
< fx:Script >
<![CDATA[
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
protected function button_clickHandler(event:MouseEvent):void
{
// TODO Auto-generated method stub
test.createUser("name","pass");
}
protected function resulth(event:ResultEvent):void
{
label.text="Succeed!";
}
protected function faulth(event:FaultEvent):void
{
label.text="failed!";
}
]]>
</ fx:Script >
< fx:Declarations >
<!-- 将非可视元素(例如服务、值对象)放在此处 -->
< mx:RemoteObject id ="ro" destination ="test" result ="resulth(event);" fault ="faulth(event);" />
</ fx:Declarations >
< s:Button x ="165" y ="96" label ="点一下" width ="414" height ="110" fontSize ="26" id ="button" click ="button_clickHandler(event)" />
< s:Label x ="287" y ="290" text ="远程调用测试" width ="202" height ="50" verticalAlign ="middle" textAlign ="center" fontSize ="22" id ="label" />
</ s:Application >
总结:这篇笔记不大全,只是大概展现了整合这些框架的要点,其中,主要是Flex4,spring3和BlazeDS4之间的整合。尤其需要注意的是jar包的导入。
本文没有涉及到blazeDS和spring整合实现远程方法调用服务和消息服务的配置,会在接下来写。
这里有一个个人觉得还蛮不错的Flex教程:Flex系列教程BY蒲公英