SSH與Flex整合

這是我從幾個文檔綜合而來，雖是親手寫的，卻是整理而已，故不算原創，如有錯不足之處，請勿噴！

 

Flex和Spring的整合：

1、先把spring支持的包拷貝到lib下。

2、web.xml註冊spring。註冊代碼如下：

<!-- Spring configuration file (Not needed if you don't use Spring) -->

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>/WEB-INF/applicationContext.xml</param-value>

</context-param>

<!-- Spring ContextLoaderListener(Not needed if you don't use Spring) -->

<listener>

<listener-class>

org.springframework.web.context.ContextLoaderListener

</listener-class>

</listener>

3、增加SpringFactory.java。代碼如下：

package com.samples.factories;

 

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.services.ServiceException;

 

public class SpringFactory implements FlexFactory{

    private static final String SOURCE = "source";

          public FactoryInstance createFactoryInstance(String id, ConfigMap properties){

        SpringFactoryInstance instance = new SpringFactoryInstance(this,id,properties);

        instance.setSource(properties.getPropertyAsString(SOURCE,instance.getId()));

        System.out.println("SpringSpringSpring" + instance.toString());

        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 ac = WebApplicationContextUtils.getWebApplicationContext(flex

                                       .messaging.FlexContext.getServletConfig().getServletContext());

            String beanName = getSource();

            try{

                return ac.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、在service-config.xml中註冊SpringFactory，配置如下：

<factories>

<factory id="spring" class="com.samples.factories.SpringFactory"/>

</factories>

至此，Spring配置完成。如果Tomcat日誌不報錯，說明spring添加成功。

 

【配置數據源】

在applicationContext.xml中增加datasource的配置，如下：

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>

    <property name="url" value="jdbc:mysql://...?useUnicode=true&amp;characterEncoding="UTF-8"/>

    <property name="username" value="root">

    <property name="password" value="sa">

<bean>

5、增加業務層代碼：

【Bean】

package pojo;

 

public class Userinfor{

    private int id;

    private String name;

    private String pwd;

   

    setter and getter method

}

【Dao】

package dao;

 

import java.util.Collection;

import org.springframework.dao.DataAccessException;

public interface UserDao{

    public Collection findAll() throws DataAccessException;

}

【Impl】

package dao.impl;

 

import java.util.Collection;

import java.util.List;

 

import org.springframework.dao.DataAccessException;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

 

import dao.UserDao;

 

public class UserDaoImpl extends HibernateDaoSupport implements UserDao{

    public Collection findAll() throws DataAccessException{

        List list = this.getHibernateTemplate().find("from Userinfor as a");

        return list;

    }

}

 

6、在applicationContext.xml中配置bean，配置如下：

<bean id="UserDaoBean" class="dao.impl.UserDaoImpl">

    <property name="sessionFactory" ref="sessionFactory"/>

</bean>

 

7、在remoting-config.xml中配置向Flex客戶端公開的bean，配置如下：

<destination id="userService">

    <properties>

        <factory>spring</factory>

        <source>UserDaoBean</source>

    </properties>

</destination>

 

8、配置Flex客戶端的代碼：

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">

    <mx:Script>

        <![CDATA[

            import mx.rpc.events.ResultEvent;

            import mx.controls.Alert;

            import mx.rpc.events.FaultEvnet;

            private function findAllFaultHandler(event:FaultEvent):void{

                Alert.show(event.fault.faultString,"Error");

            }

        ]]>

    </mx:Script>

    <mx:RemoteObject id="srv" destination="userService">

        <mx:method name="findAll" fault="findAllFaultHandler(event)"/>

    </mx:RemoteObject>

    <mx:HDividedBox width="100%" height="100%">

    <mx:Panel title="Inventory Management" width="100%" height="100%">

    <mx:DataGrid id="list" width="100%" height="100%" dataProvider="{srv.findAll.lastResult}">

    <mx:columns>

    <mx:DataGridColumn dataField="name" headerText="Name"/>

    <mx:DataGridColumn dataField="pwd" headerText="password">

    </mx:columns>

    </mx:DataGrid>
    </mx:Panel>

    </mx:HDividedBox>

</mx:Application>

 

9、最後需要注意的地方：

右擊項目-->properties-->Flex Compiler -->查看Additional compiler arguments：是否是項目在Tomcat目錄下的工程的位置。