SpringBoot整合Dubbo2.5.10，使用官方最新spring-boot-starter
开始
Dubbo已经进入了Apache孵化器，并且发布了官方的spring-boot-starter0.1.0，用于简化dubbo应用的配置，主要包括了autoconfigure(自动装配)，externalized-configuration(外部化配置)，actuator(生产准备)等，可参考官方github dubbo-spring-boot-starter.
准备工作
需要提前安装好JDK1.8，Maven，Zookeeper。
初始化Maven项目
为了整个项目结构清晰，使用模块化的maven项目。pom文件如下：1
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59<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.8.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>org.boot.dubbo</groupId>
<artifactId>boot-dubbo</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>pom</packaging>
<name>boot-dubbo</name>
<description>Dubbo project for Spring Boot</description>
<modules>
<module>dubbo-provider</module>
<module>dubbo-consumer</module>
<module>dubbo-api</module>
</modules>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<dubbo-spring-boot-starter.version>0.1.0</dubbo-spring-boot-starter.version>
<springboot.version>1.5.8.RELEASE</springboot.version>
<fastjson-version>1.2.31</fastjson-version>
<zk-client.version>0.2</zk-client.version>
<dockerfile-maven.version>1.4.3</dockerfile-maven.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.alibaba.boot</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>${dubbo-spring-boot-starter.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
<version>${springboot.version}</version>
</dependency>
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>${zk-client.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
</project>
主要分为三个模块，api，provider和consumer
创建生产者
有了spring-boot-starter，dubbo的配置变得非常简单，再也不用像以前一样配置一大堆xml文件，只需要几个简单的配置，就可以做到开箱即用。
- 先配置生产者的pom.xml
1 | <?xml version="1.0" encoding="UTF-8"?> |
接着使用properties进行SpringBoot和Dubbo的配置，配置如下：
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21spring.application.name=springboot-dubbo-provider
server.port=9090
#dubbo配置
dubbo.application.id=springboot-dubbo-provider
dubbo.application.name=springboot-dubbo-provider
dubbo.application.owner=luoliang
#协议配置
dubbo.protocol.id=dubbo
dubbo.protocol.name=dubbo
#把默认的20880端口换成12345
dubbo.protocol.port=12345
#服务注册配置
dubbo.registry.id=my-registry
dubbo.registry.address=zookeeper://localhost:2181
#配置dubbo的包扫描，针对dubbo的@Service, @Reference注解
dubbo.scan.base-packages=org.boot.dubbo.provider.service
#dubbo健康监控
endpoints.dubbo.enabled=true
management.health.dubbo.status.defaults=memory
management.health.dubbo.status.extras=load,threadpool
management.port=9091- 进行了上面两步之后，Dubbo已经集成好了，接下来就可以直接开始撸服务代码了，可以直接使用注解来暴露服务接口
先在api中写一个interface
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3public interface HelloService {
String sayHello(String name);
}实现接口，加上自己的业务逻辑
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11(version = "1.0.0",
application = "${dubbo.application.id}",
protocol = "${dubbo.protocol.id}",
registry = "${dubbo.registry.id}")
public class HelloServiceImpl implements HelloService {
public String sayHello(String name) {
return "Hello, " + name + " (from Spring Boot)";
}
}
注意，这里的service注解是com.alibaba.dubbo.config.annotation.Service
创建消费者
- 配置消费者者的pom.xml
1 | <?xml version="1.0" encoding="UTF-8"?> |
application.properties配置如下:
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10spring.application.name=springboot-dubbo-consumer
server.port=8081
#dubbo配置
dubbo.application.id=springboot-dubbo-consumer
dubbo.application.name=springboot-dubbo-consumer
dubbo.application.owner=luoliang
#服务注册配置
dubbo.registry.id=my-registry
dubbo.registry.address=zookeeper://localhost:2181
management.port=8082编写service来消费dubbo的服务，主要代码如下：
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public class ConsumerServiceImpl implements ConsumerService {
(version = "1.0.0",
application = "${dubbo.application.id}")
private HelloService helloService;
public String sayHello(String name) {
return helloService.sayHello(name);
}
}在mvc的controller中注入此服务
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("/user")
public class DefaultController {
private ConsumerService consumerService;
("/sayHello")
public String register(String name) {
return consumerService.sayHello(name);
}
}
到这里，整个项目基本结构已经搭建完成，consumer已经能够消费provider提供的服务。
现在来测试一下，分别启动provider和consumer，打开浏览器，输入http://localhost:8081/user/sayHello?name=dubbo
可以看到，返回的结果和预期一样，说明项目已经成功集成
需要源码请移步本人github，如果能顺手star就更好啦! boot-dubbo，下一篇博客接这篇博客，学习使用Docker容器化SpringBoot+Dubbo应用。