搭建新浪RPC框架motan Demo

motan是新浪微博开源的RPC框架，github官网是：https://github.com/weibocom/motan

今天就先搭建一个Hello world demo，本demo基于motan 0.2.1版本

首先先去github下载源代码（motan-manager报错请忽略，eclipse的web Module不兼容）：

选中motan下的pom.xml,进行编译打包：

下载源码编译打包的目的有三个：

1）下载源代码可以方便源代码阅读学习

2）下载到motan.xsd,因为motan与spring进行了继承，有了自己的schema，eclipse会不识别，会导致xml报错，跟dubbo的配置文件报错一个道理

3）打包获取到motan-manager的页面管理端的war包

3）在motan-manager的target文件下找到打好的war包：

单独找一个tomcat，将其放入webapp文件下

然后进入bin文件下，启动tomcat

打开浏览器http://localhost:8080/motan-manager-0.2.2-SNAPSHOT：

到此为止motan的管理平台就搭建好了，下面就搭建基于zookeeper为注册中心的RPC demo

1）首先先启动一个简单的zookeeper实例，在windows下简单的启动一个，写个demo，不需要集群

打开eclipse，搭建两个简单的maven项目：

motan-provider为服务提供端，motan-client服务调用端。两个项目的依赖基本上一样的：

        <properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<motan.version>0.2.1</motan.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>com.weibo</groupId>
			<artifactId>motan-core</artifactId>
			<version>${motan.version}</version>
		</dependency>
		<dependency>
			<groupId>com.weibo</groupId>
			<artifactId>motan-transport-netty</artifactId>
			<version>${motan.version}</version>
		</dependency>

		<dependency>
			<groupId>com.weibo</groupId>
			<artifactId>motan-registry-zookeeper</artifactId>
			<version>${motan.version}</version>
		</dependency>

		<dependency>
			<groupId>com.weibo</groupId>
			<artifactId>motan-springsupport</artifactId>
			<version>${motan.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>4.2.4.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>1.5.8</version>
		</dependency>

		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>1.5.8</version>
		</dependency>

		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.14</version>
		</dependency>
	</dependencies>

服务提供端motan-provider的编写

1）我们写一个简单的接口HelloService：

package com.bazinga.study.motan.rpc.service;

public interface HelloService {
    
    public String hello(String str);

}

HelloSerivce简单的实现类HelloServiceImpl：

package com.bazinga.study.motan.rpc.service;

public class HelloServiceImpl implements HelloService {

    public String hello(String str) {
        return "hello " + str;
    }
    

}

然后在src/main/resources下配置spring-motan-provider.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">

    <!-- spring管理的服务具体实现 -->
    <bean id="serviceImpl" class="com.bazinga.study.motan.rpc.service.HelloServiceImpl" />
    <!-- 注册中心的配置 -->
    <motan:registry regProtocol="zookeeper" name="zkRegistry" address="127.0.0.1:2181" connectTimeout="2000"/>
    
    <!-- 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。-->
    <motan:protocol id="demoMotan" default="true" name="motan" maxServerConnection="80000" maxContentLength="1048576"
                    maxWorkerThread="800" minWorkerThread="20"/>
    <!-- 服务的默认配置 group：标识服务的分组 module：标识模块信息 registry：标识service使用的注册中心，与motan:registry中的name对应  -->           
   <motan:basicService export="demoMotan:8002"
                        group="lyncc-motan-demo-rpc" accessLog="true" shareChannel="true" module="motan-demo-rpc"
                        application="myMotanDemo" registry="zkRegistry" id="serviceBasicConfig"/>
    <!-- 要暴露的服务，唯一标识是integerface -->
    <motan:service interface="com.bazinga.study.motan.rpc.service.HelloService" ref="serviceImpl" export="demoMotan:8001" basicService="serviceBasicConfig" />
    
    
</beans>

注意此时你的IDE可能会报错，不识别<motan:registry>这些标签，解决方案：

Window-->Preferences--->XML:

选中我们刚才冲源码包中获取到的motan.xsd,然后key type选择Schema location 最最关键的就是key值了：http://api.weibo.com/schema/motan.xsd

这个值要与你命名空间中的值一样：

重新打开spring-motan-provider.xml文件就不报错了~

好了，我们继续，编写provider的启动类ProviderStarter：

package com.bazinga.study.motan.rpc.quickstart;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.weibo.api.motan.common.MotanConstants;
import com.weibo.api.motan.util.MotanSwitcherUtil;

public class ProviderStarter {
    
    public static void main(String[] args) {
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring-motan-provider.xml");
        MotanSwitcherUtil.setSwitcherValue(MotanConstants.REGISTRY_HEARTBEAT_SWITCHER, true);
        System.out.println("server start...");
    }

}

启动该类：

此时再打开motan-manager的管理页面：

可以查询到我们刚才注册好的服务，并且可以看到Server的服务者的个数是1个，我们开始编写motan-client的编写：

1）先把motan-provider端的HelloSerivce接口复制到motan-client，package的目录也要一样，因为接口的绝对路径被认为服务的唯一标识

2）在motan-client的src/main/resources文件夹下新建文件spring-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">

    
    <motan:registry regProtocol="zookeeper" name="registry" address="127.0.0.1:2181"/>
    
    <!-- motan协议配置 -->
    <motan:protocol default="true" name="motan" haStrategy="failover"
                    loadbalance="roundrobin" maxClientConnection="10" minClientConnection="2"/>
                    
    <!-- 通用referer基础配置 -->
    <motan:basicReferer requestTimeout="200" accessLog="true"
                        retries="2" group="lyncc-motan-demo-rpc" module="motan-demo-rpc"
                        application="myMotanDemo" protocol="motan" registry="registry"
                        id="motantestClientBasicConfig" throwException="false" check="true"/>
    
    <motan:referer id="remoteService" interface="com.bazinga.study.motan.rpc.service.HelloService" connectTimeout="300" requestTimeout="300" basicReferer="motantestClientBasicConfig"/>
    
    
</beans>

3)编写启动类：

package com.bazinga.study.motan.rpc.quickstart;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.bazinga.study.motan.rpc.service.HelloService;

public class ClientStart {
    
    public static void main(String[] args) {
        ApplicationContext ctx = new ClassPathXmlApplicationContext("classpath:spring-motan-client.xml");
        HelloService service = (HelloService) ctx.getBean("remoteService");
        for(int i = 0;i< 50;i++){
            System.out.println(service.hello("motan " + i));
        }
    }

}

4）log4j.properties

log4j.rootLogger=warn
log4j.logger.info=info,infofile
log4j.logger.warn=warn,warnfile
log4j.logger.error=error,errorfile
log4j.logger.profile=info,profile

log4j.logger.trace=trace,tracefile
log4j.logger.accessLog=debug,accessfile
log4j.logger.serviceStatsLog=info,serviceStatsLog

log4j.appender.tracefile=org.apache.log4j.DailyRollingFileAppender 
log4j.appender.tracefile.file=./logs/client/trace.log
log4j.appender.tracefile.DatePattern='.'yyyyMMdd
log4j.appender.tracefile.layout=org.apache.log4j.PatternLayout
log4j.appender.tracefile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n

log4j.appender.accessfile=org.apache.log4j.DailyRollingFileAppender 
log4j.appender.accessfile.file=./logs/client/access.log
log4j.appender.accessfile.DatePattern='.'yyyyMMdd
log4j.appender.accessfile.layout=org.apache.log4j.PatternLayout
log4j.appender.accessfile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%p %d{yy/MM/dd HH:mm:ss} %-50.50c(%L) - %m%n

log4j.appender.infofile=org.apache.log4j.DailyRollingFileAppender 
log4j.appender.infofile.file=./logs/client/info.log
log4j.appender.infofile.DatePattern='.'yyyyMMdd-HH
log4j.appender.infofile.layout=org.apache.log4j.PatternLayout
log4j.appender.infofile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n

log4j.appender.warnfile=org.apache.log4j.DailyRollingFileAppender 
log4j.appender.warnfile.file=./logs/client/warn.log
log4j.appender.warnfile.DatePattern='.'yyyyMMdd
log4j.appender.warnfile.layout=org.apache.log4j.PatternLayout
log4j.appender.warnfile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n

log4j.appender.errorfile=org.apache.log4j.DailyRollingFileAppender 
log4j.appender.errorfile.file=./logs/client/error.log
log4j.appender.errorfile.DatePattern='.'yyyyMMdd
log4j.appender.errorfile.layout=org.apache.log4j.PatternLayout
log4j.appender.errorfile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n


#profile
log4j.appender.profile=org.apache.log4j.DailyRollingFileAppender 
log4j.appender.profile.file=./logs/client/profile.log
log4j.appender.profile.DatePattern='.'yyyyMMdd-HH
log4j.appender.profile.layout=org.apache.log4j.PatternLayout
log4j.appender.profile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} %m%n

#serviceStats
log4j.appender.serviceStatsLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.serviceStatsLog.file=./logs/client/serverserviceStatsLog.log
log4j.appender.serviceStatsLog.DatePattern='.'yyyyMMdd
log4j.appender.serviceStatsLog.layout=org.apache.log4j.PatternLayout
log4j.appender.serviceStatsLog.layout.ConversionPattern=%-d{HH:mm:ss} %m%n

启动ClientStart.java

现在已经调通了，我们再看看motan-manager:

好了，到此为此，一个简单的motan demo已经搭建好了~

完整的项目截图：