dubbo之webservice协议使用

普通接口及实现类

public interface WsService 
{
	String sayHello(String msg);
}

public class WsServiceImpl implements WsService 
{
	@Override
	public String sayHello(String msg) 
	{
		 return "hello " + msg;
	}
}

dubbo服务提供者配置

<?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:dubbo="http://code.alibabatech.com/schema/dubbo"
    xsi:schemaLocation="http://www.springframework.org/schema/beans        
	http://www.springframework.org/schema/beans/spring-beans.xsd        
	http://code.alibabatech.com/schema/dubbo        
	http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 
    <!-- 提供方应用信息，用于计算依赖关系 -->
    <dubbo:application name="dubbo-webservice-app-provider"  />
<!--     <dubbo:registry protocol="multicast" address="224.5.6.7:1234"/> -->

    <!-- 如果server:servlet,则端口必须与servlet容器端口一致,同时contextpath与servlet应用的上下文相同 -->
    <dubbo:protocol name="webservice" port="8080" server="servlet"/>
    
    <dubbo:service interface="com.dubbo.webservice.WsService" ref="wsService" registry="N/A" path="service" />
    <bean id="wsService" class="com.dubbo.webservice.WsServiceImpl" />
 
</beans>

dubbo服务消费者配置

<?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:dubbo="http://code.alibabatech.com/schema/dubbo"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://code.alibabatech.com/schema/dubbo
       http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!-- 提供方应用信息，用于计算依赖关系 -->
    <dubbo:application name="dubbo-webservice-app-consumer"/>

    <!-- 使用multicast广播注册中心暴露服务地址 -->
    <!-- <dubbo:registry address="multicast://224.5.6.7:1234"/> -->

    <!-- 声明需要暴露的服务接口 -->
    <dubbo:reference interface="com.dubbo.webservice.WsService" id="wsService" url="webservice://localhost:8080/ProjectBuild/service" registry="N/A"/>

</beans>

web.xml配置

		<servlet>
		         <servlet-name>dubbo</servlet-name>
		         <servlet-class>com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet</servlet-class>
		         <load-on-startup>1</load-on-startup>
		</servlet>
		<servlet-mapping>
		         <servlet-name>dubbo</servlet-name>
		         <url-pattern>/*</url-pattern>
		</servlet-mapping>

依赖配置文件

    <dependency>
    <groupId>org.apache.cxf</groupId>
      <artifactId>cxf-rt-frontend-simple</artifactId>
      <version>2.6.1</version>
    </dependency>
    <dependency>
	    <groupId>org.apache.cxf</groupId>
	    <artifactId>cxf-rt-transports-http</artifactId>
	    <version>2.6.1</version>
     </dependency>

注意事项

1. 需要指定<dubbo:protocol server="servlet">.

2. jar需要使用2.6.1版本,使用高版本好像有问题,消费者无法访问.

3. 消费者引用时,url需要带上应用上下文,否则也无法访问.

4. 针对servlet的服务,端口和上下文必须与应用服务器的端口及上下文保持一致.

遗留问题

1.dubbo-webservice与标准webservice的相互使用