Spring Boot 整合 Dubbo和Zookeeper

Spring Boot 整合 Dubbo和Zookeeper

环境介绍

• zookeeper 安装
• dubbo-admin 查看管理注册中心服务提供者和消费者

Zookeeper 安装

http://zookeeper.apache.org/releases.html

下载最新安装包，文件格式是tar.gz，可见Apache还是推荐在Linux上使用，但也提供了在windows上使用的脚本。 
解压之后，修改数据和日志配置，注意在3.5.3版本上，conf文件夹里不在直接提供zoo.cfg，而是提供了一个example，zoo_sample.cfg。复制重命名为zoo.cfg，然后修改data位置新增log位置。注意，windows目录要用//分割。

dataDir=D:\\software\\zookeeper-3.5.3-beta\\zookeeper\\data
dataLogDir=D:\\software\\zookeeper-3.5.3-beta\\zookeeper\\log

• 修改zkEnv.cmd

  防止win10 闪退,注意双引号的位置

if not exist "%JAVA_HOME%\bin\Java.exe"set JAVA="%JAVA_HOME%\bin\java"

启动

使用zkServer.cmd启动Zookeeper即可。注意Zookeeper是运行在8080端口，服务接口是2181

Dubbo admin 搭建

https://github.com/alibaba/dubbo

https://github.com/dangdangdotcom/dubbox

下载dubbo，执行

mvn install -D maven.test.skip=true

然后在dubbo-admin下执行

mvn package -D maven.skip.test=true

打war包，发布到tomcat下，注意修改tomcat端口8081

创建主maven项目

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <groupId>com.rencc.dubbo</groupId>
<artifactId>dubbo-spring-study</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging> <modules>
<module>dubbo-provider</module>
<module>dubbo-consumer</module>
</modules> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties></project>


创建子spring boot项目

• dubbo-provider 服务提供者

在application.properties 里设置端口，目前8080和8081已被使用

server.port=8090

添加dubbo的配置文件

<?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"> <!-- 配置可参考 http://dubbo.io/User+Guide-zh.htm -->
<!-- 服务提供方应用名，用于计算依赖关系 -->
<dubbo:application name="dubbo-provider" owner="dubbo-provider" /> <!-- 定义 zookeeper 注册中心地址及协议 -->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:2181" client="zkclient" /> <!-- 定义 Dubbo 协议名称及使用的端口，dubbo 协议缺省端口为 20880，如果配置为 -1 或者没有配置 port，则会分配一个没有被占用的端口 -->
<dubbo:protocol name="dubbo" port="-1" /> <!-- 声明需要暴露的服务接口 -->
<dubbo:service interface="com.rencc.dubbo.provider.service.DemoService"
ref="demoService" timeout="10000" /> <!-- 和本地 bean 一样实现服务 -->
<bean id="demoService" class="com.rencc.dubbo.provider.serviceImpl.DemoServiceImpl" /></beans>


DemoService 接口和实现类

package com.rencc.dubbo.provider.service;public interface DemoService {
String sayHello(String name);
}package com.rencc.dubbo.provider.serviceImpl;import com.rencc.dubbo.provider.service.DemoService;public class DemoServiceImpl implements DemoService { public String sayHello(String name) {
return "Welcome to Dubbo, Hello " + name;
}}


pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <groupId>com.rencc.dubbo.provider</groupId>
<artifactId>dubbo-provider</artifactId>
<packaging>jar</packaging> <name>dubbo-provider</name>
<description>Demo project for Spring Boot</description> <parent>
<groupId>com.rencc.dubbo</groupId>
<artifactId>dubbo-spring-study</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties> <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.2.RELEASE</version>
</dependency> <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>1.5.2.RELEASE</version>
</dependency> <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<version>1.5.2.RELEASE</version>
</dependency> <dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.4.10</version>
<exclusions>
<exclusion>
<artifactId>spring</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
</exclusions>
</dependency> <dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.6</version>
<exclusions>
<exclusion>
<artifactId>slf4j-log4j12</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency> <dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency> </dependencies> <build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.5.2.RELEASE</version>
</plugin>
</plugins>
</build></project>


• dubbo-consumer 服务消费者 
  在此仅贴出dubbo代码配置。

<?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"> <!-- 配置可参考 http://dubbo.io/User+Guide-zh.htm -->
<!-- 消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 -->
<dubbo:application name="dubbo-consumer" owner="dubbo-consumer" /> <!-- 定义 zookeeper 注册中心地址及协议 -->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:2181" client="zkclient" /> <!-- 生成远程服务代理，可以和本地 bean 一样使用 testService -->
<dubbo:reference id="demoService" interface="com.rencc.dubbo.provider.service.DemoService" /></beans>