SpringBoot整合dubbo以及nacos
SpringBoot整合dubbo以及nacos
一、引入依赖
注意,我们这边整合的时候分为消费者,生产者和中间服务接口层
1、父POM文件
<?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.fly</groupId>
<artifactId>spring-boot-dubbo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<modules>
<module>spring-boot-dubbo-interface</module>
<module>spring-boot-dubbo-provider</module>
<module>spring-boot-dubbo-consumer</module>
</modules>
<properties>
<java.version>1.8</java.version>
<dubbo.version>3.0.7</dubbo.version>
<spring-boot.version>2.6.7</spring-boot.version>
<lombok.version>1.18.24</lombok.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- Spring Boot -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- dubbo -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>${dubbo.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</dependency>
<!-- nacos作注册中心-->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<version>${dubbo.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
2、生产者依赖
<?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>
<parent>
<groupId>com.fly</groupId>
<artifactId>spring-boot-dubbo</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>spring-boot-dubbo-provider</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.fly</groupId>
<artifactId>spring-boot-dubbo-interface</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- dubbo -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-common</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-remoting-api</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
</project>
3、接口抽象模块依赖
我这边是用到lombok才依赖的,如果不需要其他依赖就可以不用引入,总之这边按需引入
<?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>
<parent>
<groupId>com.fly</groupId>
<artifactId>spring-boot-dubbo</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>spring-boot-dubbo-interface</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
</project>
4、消费者端依赖
<?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>
<parent>
<groupId>com.fly</groupId>
<artifactId>spring-boot-dubbo</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>spring-boot-dubbo-consumer</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.fly</groupId>
<artifactId>spring-boot-dubbo-interface</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- spring boot starter -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- dubbo -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-common</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-remoting-api</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
</project>
二、对应模块的配置文件
这边配置文件含义因为篇幅原因就不多做介绍,后面会出一期介绍的,这边大家自己也可以搜下
1、生产者对应配置文件
server:
port: 8001
spring:
application:
name: spring-boot-dubbo-provider
dubbo:
protocol:
name: dubbo
port: 20881
# 注册中心地址
registry:
address: nacos://127.0.0.1:8848
application:
qos-enable: false
consumer:
check: false
retries: 2
2、消费者对应配置文件
server:
port: 8002
spring:
application:
name: spring-boot-dubbo-consumer
dubbo:
protocol:
name: dubbo
port: 20881
# 注册中心地址
registry:
address: nacos://127.0.0.1:8848
application:
qos-enable: false
consumer:
check: false
三、编写测试代码
这边我们以上步骤配置好后就可以写一下测试代码,检查以下是否可以运行,不过这边要注意的一点,在上面的步骤中我们还没有启动nacos,不过这边先写这,等下后面会有如何下载和启动的步骤
1、生产者代码
业务代码
package com.fly.service;
import org.apache.dubbo.config.annotation.DubboService;
@DubboService
public class DemoServiceImpl implements DemoService {
@Override
public String sayHello(String name) {
return "hello:" + name ;
}
}
启动类
package com.fly;
import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@EnableDubbo
public class ProviderApplication {
public static void main(String[] args) {
SpringApplication.run(ProviderApplication.class, args);
}
}
2、接口层代码
这边只是对生产者提供方法的抽象,不提供具体实现,具体实现在服务提供者(生产者)那边
package com.fly.service;
public interface DemoService {
String sayHello(String name);
}
3、消费端代码
package com.fly.controller;
import com.fly.service.DemoService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class DemoController {
@DubboReference
private DemoService demoService;
@GetMapping("/test")
public String test(String param) {
return demoService.sayHello(param);
}
}
四、下载和启动nacos
因为我们用的是nacos,所以现在启动肯定会失败,需要我们先把nacos启动然后将生产者和消费者注册到nacos上
1、下载nacos
1.1 下载
下载地址:https://github.com/alibaba/nacos/releases
这边我们到下载页面后点这个tag可以看到有很多版本的nacos,这里我选的是2.1.2版本选好之后点zip下载就行了,如果是安装到linux上点.gz后缀那个就行了,我这边暂时是用win10系统作介绍
1.2 打包
然后下载解压之后的文件是这样
我们这边会发现没有bin目录,也就是没有启动的地方,这边是需要我们先用maven打包,我们在ncaos当前目录下进入cmd然后输入打包命令,注意这边需要提前安装maven并设置其环境变量
打包命令:mvn -Prelease-nacos -Dmaven.test.skip=true clean install -U
打包完成后会生成一个target目录,目录里有好的包,这边我已经打好了
然后我们将其放到其他目录,然后解压后就会有bin目录了
1.3 启动
点击后就可以启动了