dubbo与zookeeper快速入门

导包：

<!-- dubbo相关 -->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>dubbo</artifactId>
    <version>2.6.0</version>
</dependency>
<!-- zookeeper -->
<dependency>
     <groupId>org.apache.zookeeper</groupId>
     <artifactId>zookeeper</artifactId>
     <version>3.4.7</version>
</dependency>
<dependency>
     <groupId>com.github.sgroschupf</groupId>
     <artifactId>zkclient</artifactId>
     <version>0.1</version>
</dependency>

首先在公共模块创建zk.properties配置文件

zk.address=127.0.0.1:2181

与dubbo.properties配置文件

dubbo.port=20881
dubbo.application=order

然后在 service 层创建applicationContext-dubbo.xml服务注册中心

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

    <!--===== 配置 dubbo 服務 =====-->

    <!--name指定协议为 dubbo，指定暴露服务的端口，如果不指定默认为20880-->
    <dubbo:protocol name="dubbo" port="${dubbo.port}"/>
    <!-- dubbo 服务的唯一名称 -->
    <dubbo:application name="${dubbo.application}" />
    <!-- 指定服务的注册中心 -->
    <dubbo:registry protocol="zookeeper" address="${zk.address}" />
    <dubbo:annotation package="cn.qingcheng.service" />
    <!--<context:annotation-config/>-->

    <dubbo:provider timeout="10000" threadpool="fixed" threads="100" accepts="1000"/>
</beans>

然后接着在web层创建消费者applicationContext-dubbo.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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!--=== 引用dubbo 服务 ====-->
    <dubbo:application name="${dubbo.application}" />
    <dubbo:registry protocol="zookeeper" address="${zk.address}"/>
    <dubbo:annotation package="cn.qingcheng.controller" />

    <!-- check="false" 关闭启动时检测依赖服务是否可用 ，开发环境改为false，生产环境改为true(默认)-->
    <dubbo:consumer timeout="8000" retries="0" check="false"/>

</beans>