dubbo.provider和dubbo.consumer配置

Configure service provider

<?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-3.1.xsd
        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <dubbo:application name="emax-paycenter-service" logger="log4j" version="${dubbo.service.version}" organization="emax-paycenter" environment="${dubbo.environment}"/>
    <dubbo:registry protocol="zookeeper" address="${dubbo.registry.address}" file="${catalina.home}/dubbo-registry/dubbo-registry.properties"/>
    <dubbo:protocol name="dubbo" accepts="${dubbo.protocol.accepts}"/>
    <dubbo:protocol name="jsonrpc" server="jetty"/>
    <dubbo:provider protocol="dubbo" loadbalance="${dubbo.loadbalance}" />
    <bean class="com.emax.paycenter.dubbo.DynamicDubboPortReaderImpl" init-method="init">
        <property name="protocolName" value="dubbo"/>
        <property name="ports" value="${dubbo.ports}"/>
    </bean>
    <bean class="com.emax.paycenter.dubbo.DynamicDubboPortReaderImpl" init-method="init">
        <property name="protocolName" value="jsonrpc"/>
        <property name="ports" value="${dubbo.jsonrpc.ports}"/>
    </bean>

    <import resource="classpath:dubbo/dubbo-applicationContext-Service.xml" />
    <dubbo:service protocol="dubbo" interface="com.emax.paycenter.api.service.IPayCenterFacade"
                   ref="payCenterFacade" timeout="${dubbo.timeout}" retries="${dubbo.retries}"/>
    <dubbo:service protocol="dubbo,jsonrpc" interface="com.emax.paycenter.backend.service.PaycenterNotifyRetryService"
                   ref="notifyService" timeout="${dubbo.timeout}" retries="${dubbo.retries}" />

</beans>

dubbo.service.version=1.0.0

dubbo.environment=test

dubbo.registry.address（配置中心）：127.0.0.1:2181　　注册中心地址。dubbo通常注册到zookeeper上。zookeeper的默认端口是2181。Zookeeper监控管理工具ZkWeb，可以用来管理节点，以及监控集群状态。

dubbo.protocol.accepts（配置中心）：500           accepts：The accept connection size. 为防止被大量连接撑挂，可在服务提供方限制大接收连接数，以实现服务提供方自我保护.  optional

dubbo.loadbalance（配置中心）：roundrobin　　　　　　loadbalance：dubbo负载模式。The method load balance.  optional

dubbo.ports=28005,28006,28007,28008

dubbo.jsonrpc.ports=9995,9996,9997,9998

dubbo.timeout（配置中心）：300000   dubbo超时时间

dubbo.retries（配置中心）：0   重试次数

Configure service consumer

<?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-3.1.xsd
        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <dubbo:application name="emax-merchant-web" logger="log4j" version="${dubbo.service.version}" organization="emax-merchant" environment="${dubbo.environment}"/>
    <dubbo:registry protocol="zookeeper" address="${dubbo.registry.address}" file="${catalina.home}/dubbo-registry/dubbo-registry.properties"/>

    <import resource="dubbo-applicationContext-Web.xml"/>
    <dubbo:reference id="payCenterFacade" protocol="dubbo" interface="com.emax.paycenter.api.service.IPayCenterFacade"
                     timeout="${dubbo.timeout}" lazy="true" loadbalance="${dubbo.loadbalance}"
                     retries="${dubbo.retries}" check="false"/>

</beans>

上面provider里的jsonrpc利用jetty提供了http调用，此时项目需要增加maven依赖jetty: 6.1.26（见dubbo官网3 依赖，另，参见详解dubbo支持的协议）。例如http://192.168.40.240:9995/com.emax.paycenter.backend.service.PaycenterNotifyRetryService?method=notifyRetry。我在之前的一篇随笔有提到，provider应用端的一些任务通过将这种url注册到jobcenter里，在jobcenter设置cron表达式触发任务的执行。