spring集成blazeds，使用@RemoteDestination实现远程服务

 

web.xml

添加以下

<servlet>
        <servlet-name>spring-flex</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-flex.xml</param-value>
        </init-param>
    </servlet>

<servlet> <servlet-name>spring-flex</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-flex.xml</param-value> </init-param> </servlet>这里的init-param必须写，不写默认会报找不到xx-servlet.xml文件。

<servlet-mapping>
        <servlet-name>spring-flex</servlet-name>
        <url-pattern>/messagebroker/*</url-pattern>
    </servlet-mapping>

<servlet-mapping> <servlet-name>spring-flex</servlet-name> <url-pattern>/messagebroker/*</url-pattern> </servlet-mapping>这里是接受了blazeds的访问，我是采用了异步加载即单独的文件的方式，如果将spring-flex.xml集成进applicationContext.xml的话，之后使用blazeds会再将此文件加载一遍，就造成了不必要的资源浪费了。

第一次访问时会动态加载spring-flex.xml文件中的内容，来完成初始化，所以第一次会比较慢。

下面是spring-flex.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:flex="http://www.springframework.org/schema/flex"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                           http://www.springframework.org/schema/flex
                           http://www.springframework.org/schema/flex/spring-flex-1.0.xsd
                           http://www.springframework.org/schema/context
                            http://www.springframework.org/schema/context/spring-context-2.5.xsd
                           ">
<!--    <bean id="_messageBroker" class="org.springframework.flex.messaging.MessageBrokerFactoryBean" >  -->
<!--     <property name="servicesConfigPath" value="classpath:services-config.xml" />  -->
<!-- </bean> -->
    <context:component-scan base-package="com.wynlink.*" />
    <!-- flex -->
    <!-- 为了把请求路由给 MessageBroker，添加以下 tag;;;例如BlazeDS XML配置文件默认位置为：/ WEB-INF/flex/services-config.xml。但可以使用services-config-path属性重新配置路径。classpath在maven项目中默认为src/main/resources路径下。 -->
    <!-- 如果路径发送改变用这个<flex:message-broker services-config-path="classpath*:services-config.xml"/> -->
    <flex:message-broker services-config-path="classpath*:services-config.xml">
    </flex:message-broker>
</beans>

<?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:flex="http://www.springframework.org/schema/flex" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/flex http://www.springframework.org/schema/flex/spring-flex-1.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd "> <!-- <bean id="_messageBroker" class="org.springframework.flex.messaging.MessageBrokerFactoryBean" > --> <!-- <property name="servicesConfigPath" value="classpath:services-config.xml" /> --> <!-- </bean> --> <context:component-scan base-package="com.wynlink.*" /> <!-- flex --> <!-- 为了把请求路由给 MessageBroker，添加以下 tag;;;例如BlazeDS XML配置文件默认位置为：/ WEB-INF/flex/services-config.xml。但可以使用services-config-path属性重新配置路径。classpath在maven项目中默认为src/main/resources路径下。 --> <!-- 如果路径发送改变用这个<flex:message-broker services-config-path="classpath*:services-config.xml"/> --> <flex:message-broker services-config-path="classpath*:services-config.xml"> </flex:message-broker> </beans> 之前的配置文件中并没有写<context:component-scan base-package="com.wynlink.*" />，但是一样正常，只是最近突然发现spring-flex.xml在加载时不会帮我自动初始化使用@RemoteDestination注解的类，加上这个后就没问题了。

下面是类得部分代码

@Service("loginService")
@RemotingDestination(channels={"my-amf"}, value="loginService")
@Transactional(readOnly=true,rollbackFor=Exception.class)
public class LoginService {
    @Autowired
    private LoginDAO dao;

    public User login(User user) {
        try {
            return dao.login(user.getUsername(), user.getPassword());
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public String getLoginUser() {
        User user = (User) FlexContext.getFlexSession().getAttribute("user");
        if(null == user)
            return null;
        return user.getUsername() + "|" + user.getRole();
    }
}

@Service("loginService") @RemotingDestination(channels={"my-amf"}, value="loginService") @Transactional(readOnly=true,rollbackFor=Exception.class) public class LoginService { @Autowired private LoginDAO dao; public User login(User user) { try { return dao.login(user.getUsername(), user.getPassword()); } catch (Exception e) { e.printStackTrace(); return null; } } public String getLoginUser() { User user = (User) FlexContext.getFlexSession().getAttribute("user"); if(null == user) return null; return user.getUsername() + "|" + user.getRole(); } } @service和@transaction是spring通过注解自动加载类和事务控制，跟本文无太大关系