RPC调用之微博 motan

这边文章将偏实战， 至于motan，可以去了解如何实现、比普通的http请求的优越之处等


这里贴出应用motan的代码


[b]Client端[/b]

ClassPathXmlApplicationContext ctx= new ClassPathXmlApplicationContext("classpath:motan_client.xml");


NaturalRankingService naturalRankingService = ctx.getBean(NaturalRankingService.class);
		NaturalResponse naturalResponse = naturalRankingService.recommend(recommendRequest);

client端配置motan_client.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:motan="http://api.weibo.com/schema/motan"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
   http://api.weibo.com/schema/motan http://api.weibo.com/schema/motan.xsd">

	<!-- 配置注册中心，客户端与服务端使用相同的配置中心 

	-->
	<motan:registry regProtocol="zookeeper" name="client_zookeeper" address="172.0.0.1:2181,172.0.0.2:2181,172.0.0.3:2181"/>



	<!--codec,serialization一定要跟服务端配置的保持一致，否则无法正常调用 -->
	<motan:protocol id="client_protocol" default="false" name="motan"  codec="motan2" serialization="fastjson"
                    requestTimeout="1000"  maxContentLength="2048576"
                    maxClientConnection="300" minClientConnection="100" loadbalance="roundrobin"/>

    <!-- mock测试: filter="statistic,mock"  check="true" directUrl="127.0.0.1:8002"   mock="true" -->
    <motan:basicReferer registry="client_zookeeper"  
    					group="ads-ranking-natural"  accessLog="false" shareChannel="false" 
                        id="clientBasicConfig" 
                        filter="statistic"
                        />

    <!-- reference to the remote service     directUrl="localhost:8002" -->
    <motan:referer id="NaturalRankingService" interface="com.zz.common.interfaces.NaturalRankingService"  
    basicReferer="clientBasicConfig" 
     />
</beans>

[b]jar包中的接口service[/b]

public interface NaturalRankingService {
	public NaturalResponse recommend(RecommendRequest request) ;
}

jar包依赖

<dependencies>
		 <!-- dependencies blow were only needed for motan-based features -->
	  <dependency>
	        <groupId>com.weibo</groupId>
	        <artifactId>motan-core</artifactId>
	        <version>${motanVersion}</version>
	    </dependency>
	    <dependency>
	        <groupId>com.weibo</groupId>
	        <artifactId>motan-transport-netty</artifactId>
	        <version>${motanVersion}</version>
	    </dependency>
	    <dependency>
	        <groupId>com.weibo</groupId>
	        <artifactId>motan-springsupport</artifactId>
	        <version>${motanVersion}</version>
	    </dependency>
	    <dependency>
		    <groupId>com.weibo</groupId>
		    <artifactId>motan-registry-zookeeper</artifactId>
		    <version>RELEASE</version>
		</dependency>

		<!-- dependencies blow were only needed for spring-based features -->
	    <dependency>
	        <groupId>org.springframework</groupId>
	        <artifactId>spring-context</artifactId>
	        <version>${spring.version}</version>
	    </dependency>
	    <dependency>
	        <groupId>org.slf4j</groupId>
	        <artifactId>slf4j-log4j12</artifactId>
	        <version>${slf4jVersion}</version>
    	</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4jVersion}</version>
		</dependency>
	</dependencies>

[b]server端实现[/b] server端也加入上面的jar

public class NaturalRankinServicegImpl implements NaturalRankingService { 
   @Override
	public NaturalResponse recommend(RecommendRequest request) {
           //实现代码
          return null;
         }
}

[b]server端的配置motan_server.xml[/b]

<?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:motan="http://api.weibo.com/schema/motan"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
   http://api.weibo.com/schema/motan http://api.weibo.com/schema/motan.xsd">

	<!-- 配置注册中心，客户端与服务端使用相同的配置中心 

	-->


	<motan:registry regProtocol="zookeeper" name="server_zookeeper" address="172.0.0.1:2181,172.0.0.2:2181,172.0.0.3:2181"/>	


	<!-- 协议配置。为防止多个业务配置冲突，推荐使用id表示具体协议。serialization="kryo" codec="compressMotan"-->
    <motan:protocol id="server_protocol" default="false" name="motan"  codec="motan2" serialization="fastjson"
                    requestTimeout="1000" maxServerConnection="8000" maxContentLength="2048576"
                    maxWorkerThread="300" minWorkerThread="100" />

    <!-- service implemention bean -->
    <bean id="NaturalRankinServicegImpl" class="io.batcloud.service.impl.NaturalRankinServicegImpl" />


    <!-- exporting service by motan -->
    <motan:basicService requestTimeout="1000" export="server_protocol:8102" registry="server_zookeeper"
                        group="ads-ranking-natural" accessLog="false" shareChannel="false" 
                        id="serviceBasicConfig" filter="statistic"/>
    <motan:service interface="com.zz.common.interfaces.NaturalRankingService" ref= "NaturalRankinServicegImpl" basicService="serviceBasicConfig" />
</beans>

这样便完成了motan RPC的调用应用， 当然中间还有 服务注册中心zookeeper的应用