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

 

web.xml

添加以下

view plaincopy to clipboardprint?

1. <servlet>  
2.         <servlet-name>spring-flex</servlet-name>  
3.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
4.         <init-param>  
5.             <param-name>contextConfigLocation</param-name>  
6.             <param-value>classpath:spring-flex.xml</param-value>  
7.         </init-param>  
8.     </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。

view plaincopy to clipboardprint?

1. <servlet-mapping>  
2.         <servlet-name>spring-flex</servlet-name>  
3.         <url-pattern>/messagebroker/*</url-pattern>  
4.     </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

view plaincopy to clipboardprint?

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <beans xmlns="http://www.springframework.org/schema/beans"  
3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.        xmlns:flex="http://www.springframework.org/schema/flex"  
5.        xmlns:context="http://www.springframework.org/schema/context"  
6.        xsi:schemaLocation="http://www.springframework.org/schema/beans  
7.                            http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
8.                            http://www.springframework.org/schema/flex  
9.                            http://www.springframework.org/schema/flex/spring-flex-1.0.xsd  
10.                            http://www.springframework.org/schema/context   
11.                             http://www.springframework.org/schema/context/spring-context-2.5.xsd   
12.                            ">  
13. <!--    <bean id="_messageBroker" class="org.springframework.flex.messaging.MessageBrokerFactoryBean" >  -->  
14. <!--     <property name="servicesConfigPath" value="classpath:services-config.xml" />  -->  
15. <!-- </bean> -->  
16.     <context:component-scan base-package="com.wynlink.*" />  
17.     <!-- flex -->  
18.     <!-- 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。 -->  
19.     <!-- 如果路径发送改变用这个<flex:message-broker services-config-path="classpath*:services-config.xml"/> -->  
20.     <flex:message-broker services-config-path="classpath*:services-config.xml">  
21.     </flex:message-broker>  
22. </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

view plaincopy to clipboardprint?

1. @Service("loginService")  
2. @RemotingDestination(channels={"my-amf"}, value="loginService")  
3. @Transactional(readOnly=true,rollbackFor=Exception.class)  
4. public class LoginService {  
5.     @Autowired  
6.     private LoginDAO dao;  
7.       
8.     public User login(User user) {  
9.         try {  
10.             return dao.login(user.getUsername(), user.getPassword());  
11.         } catch (Exception e) {  
12.             e.printStackTrace();  
13.             return null;  
14.         }  
15.     }  
16.       
17.     public String getLoginUser() {  
18.         User user = (User) FlexContext.getFlexSession().getAttribute("user");  
19.         if(null == user)  
20.             return null;  
21.         return user.getUsername() + "|" + user.getRole();  
22.     }  
23. }  

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