dubbo框架----初探索-配置
使用框架版本
dubbo-2.5.3
spring-4.2.1.RELEASE
jdk-1.8
tomcat-8.0
zookeeper-3.3.6
Dubbo与Zookeeper、SpringMVC整合使用
第一步:在Linux上安装Zookeeper
(1)下载Zookeeper-3.4.6.tar.gz 地址http://www.apache.org/dist/zookeeper/
(2) 我们放到Linux下的一个文件夹,然后解压:
(3)然后在对应的zookeeper-3.4.6/conf 下有一个文件zoo_sample.cfg的这个文件里面配置了监听客户端连接的端口等一些信息,Zookeeper 在启动时会找zoo.cfg这个文件作为默认配置文件,所以我们复制一个名称为zoo.cfg的文件
我们查看一下这个文件的里面的一些配置信息,如图所示:
(4)启动Zookeeper 的服务,如图所示:
第二步:配置dubbo-admin的管理页面,方便我们管理页面
(1)下载dubbo-admin-2.4.5.war包,在Linux的tomcat部署,先把dubbo-admin-2.4.1放在tomcat的webapps/ROOT下,然后进行解压:
dubbo 源代码地址:https://github.com/alibaba/dubbo
关于dubbo在jdk 1.8 环境下打包,报错,参考:https://github.com/alibaba/dubbo/issues/50
提供dubbo-admin-2.5.4.war 访问地址:http://share.weiyun.com/006e0a25a056dcbdc0664841ab9e5feb
初次访问需要用户名:root;密码:root;
第三步:SpringMVC与Dubbo的整合,这边使用的Maven的管理项目
我们先开发服务注册的,就是提供服务,项目结构如图所示:
(1)test-maven-api项目加入了一个服务接口,代码如下:
package com.dubbo.registry.service; public interface TestRegistryService { public String hello(String name); }
(2)test-maven-console 工程在pom.xml加入Dubbo和Zookeeper的jar包、引用test-maven-api的jar包,代码如下:
<dependency> <groupId>cn.test</groupId> <artifactId>test-maven-api</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.6</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency>
具体的实现Java代码为:
package com.dubbo.registry.serviceImpl; import org.springframework.stereotype.Service; import com.dubbo.registry.service.TestRegistryService; @Service("testRegistryService") public class TestRegistryServiceImpl implements TestRegistryService{ public String hello(String name) { return "hello"+name; } }
为了让dubbo和zookeeper来管理过程,我们还需要做额外的配置(前提是spring已经加入到工程中来)
<?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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.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-3.1.xsd" default-lazy-init="false"> <!-- 提供方应用名称信息,这个相当于起一个名字,我们dubbo管理页面比较清晰是哪个应用暴露出来的 --> <dubbo:application name="dubbo_provider"></dubbo:application> <!-- 使用zookeeper注册中心暴露服务地址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181" check="false" subscribe="false" register=""></dubbo:registry> <!-- 要暴露的服务接口 --> <dubbo:service interface="com.dubbo.registry.service.TestRegistryService" ref="testRegistryService" /> </beans>
启动过程,效果如下图:
(3)test-maven-customer项目的具体实现,相关pom代码如下:
<dependency> <groupId>cn.test</groupId> <artifactId>test-maven-api</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.6</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency>
web层,控制器代码
package com.dubbo.registry.controller; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import com.dubbo.registry.service.TestRegistryService; @Controller public class IndexController { @Autowired private TestRegistryService testRegistryService; @RequestMapping("/hello") public String index(Model model){ String name = testRegistryService.hello("zz"); System.out.println("xx=="+name); return ""; } }
dubbo和zookeeper配置如下
<?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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.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-3.1.xsd" default-lazy-init="false"> <dubbo:application name="dubbo_consumer"></dubbo:application> <!-- 使用zookeeper注册中心暴露服务地址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181" check="false"></dubbo:registry> <!-- 要引用的服务 --> <dubbo:reference interface="com.dubbo.registry.service.TestRegistryService" id="testRegistryService"></dubbo:reference> </beans>
启动项目:效果如下
(5)然后访问消费者项目,Controller层能像调用本地一样调用服务的具体实现,如图所示:
参考:
http://dubbo.io/Developer+Guide-zh.htm#DeveloperGuide-zh-%E6%9A%B4%E9%9C%B2%E6%9C%8D%E5%8A%A1%E6%97%B6%E5%BA%8F
http://www.cnblogs.com/Javame/p/3632473.html
http://blog.csdn.net/congcong68/article/details/41113239
http://doc.okbase.net/congcong68/archive/112508.html