基于Hessian的高性能远程对象调用的服务器端和客户端的Demo 2

<!--  Hessian服务的接口-->

 <property name="serviceInterface" value="com.demo.api.server.DemoService" />

</bean>

在该配置下，Hessian服务的url是

http://IP:port/**/remote/HessianService，其中**是该应用的url。Spring使用DispatcherServlet拦截到匹配/remoting/*的请求，然后将该请求转发到对应的bean，该bean在dispatcher-servlet.xml文件中以HessianServiceExporter定义。

 

二．客户端

同样我们创建工程和代码

Web project&code

public interface DemoService {

    List getUsers();

}

下面注意了：

创建可序列化对象，就是Server端的那个syncobject，而且要implements Serializable。这个也是我们要远程对象调用的domain类。

public class SyncObject implements Serializable {

    /**

     * Comment for <code>serialVersionUID</code>

     */

    private static final long serialVersionUID = 1L;

    private String username="";

    private String password="";

    public String getUsername() {

       return username;

    }

    public void setUsername(String username) {

       this.username = username;

    }

    public String getPassword() {

       return password;

    }

    public void setPassword(String password) {

       this.password = password;

    }

}

配置文件config.xml

<bean id="hessianService" class="org.springframework.remoting.caucho.HessianProxyFactoryBean">

<!--服务器端发布的地址URL-->

        <property name="serviceUrl" value="http://ip:port/**/remote/HessianService" />

<!--本地接口à

        <property name="serviceInterface" value="com.demo.api.client.DemoService"/>

</bean>

最后我们写个测试方法：

public static void main(String[] args) {

        final ApplicationContext context = new ClassPathXmlApplicationContext("config.xml");

        DemoService service = (DemoService)context.getBean("hessianService");

        try {

        List<SyncObject> userlist= service.getUsers();

         for (SyncObject user : userlist) {

              System.out.println(user.getUsername());

         }   

        }

        catch(RemoteException e) {

           e.printStackTrace();

        }

}

Run一把试试，（确保服务器端runing状态哦）

下面是成功后的信息，结果是从服务器端取到了2个用户的username。

2008-12-31 10:31:15 org.springframework.core.CollectionFactory <clinit>

信息: JDK 1.4+ collections available

2008-12-31 10:31:16 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions

信息: Loading XML bean definitions from class path resource [config.xml]

2008-12-31 10:31:16 org.springframework.context.support.AbstractRefreshableApplicationContext refreshBeanFactory

信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext;hashCode=11988197]: org.springframework.beans.factory.support.DefaultListableBeanFactory defining beans [hessianService]; root of BeanFactory hierarchy

2008-12-31 10:31:16 org.springframework.context.support.AbstractApplicationContext refresh

信息: 1 beans defined in application context [org.springframework.context.support.ClassPathXmlApplicationContext;hashCode=11988197]

2008-12-31 10:31:16 org.springframework.context.support.AbstractApplicationContext initMessageSource

信息: Unable to locate MessageSource with name 'messageSource': using default [org.springframework.context.support.DelegatingMessageSource@b8f82d]

2008-12-31 10:31:16 org.springframework.context.support.AbstractApplicationContext initApplicationEventMulticaster

信息: Unable to locate ApplicationEventMulticaster with name 'applicationEventMulticaster': using default [org.springframework.context.event.SimpleApplicationEventMulticaster@b1b4c3]

2008-12-31 10:31:16 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons

信息: Pre-instantiating singletons in factory [org.springframework.beans.factory.support.DefaultListableBeanFactory defining beans [hessianService]; root of BeanFactory hierarchy]

2008-12-31 10:31:16 org.springframework.aop.framework.DefaultAopProxyFactory <clinit>

信息: CGLIB2 not available: proxyTargetClass feature disabled

username1 from server

username2 from server