Nacos SpringCloud 《集成dubbo》

目录结构如下:

一、创建maven工程

父工程pom:

<?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.zyf</groupId>
    <artifactId>cloudexample</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>service-provider</module>
        <module>service-customer</module>
    </modules>
    <name>cloud-example</name>
    <description>SpringCloud demo for Nacos</description>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.2.7.RELEASE</spring-boot.version>
        <spring-cloud-alibaba.version>2.2.1.RELEASE</spring-cloud-alibaba.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

二、创建service-provider

<?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">
    <parent>
        <artifactId>cloudexample</artifactId>
        <groupId>com.zyf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service-provider</artifactId>
    <packaging>pom</packaging>
    <modules>
        <module>service-provider-api</module>
        <module>service-provider-service</module>
    </modules>


</project>

service-provider下创建service-provider-api 

<?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">
    <parent>
        <artifactId>service-provider</artifactId>
        <groupId>com.zyf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service-provider-api</artifactId>


</project>

创建接口:

public interface DubboTestService {
    String test();
}

service-provider下创建service-provider-service

<?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">
    <parent>
        <artifactId>service-provider</artifactId>
        <groupId>com.zyf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>service-provider-service</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.zyf</groupId>
            <artifactId>service-provider-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
        </dependency>
    </dependencies>

</project>

api接口实现:

import com.zyf.service.api.DubboTestService;

public class DubboTestServiceImpl implements DubboTestService {
    @Override
    public String test() {
        return "dubbotest响应";
    }
}

servcie-provider-service的启动类及配置文件:

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class ServiceProviderStarter {
    public static void main(String[] args) {
        SpringApplication.run(ServiceProviderStarter.class, args);
    }
}

server:
  port: 8999

spring:
  application:
    name: service-provider
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
        cluster-name: DEFAULT #集群默认DEFAULT
        #namespace: xxxxxxx   #命名空间  做隔离
  main:
    allow-bean-definition-overriding: true   #出现重名直接复写
dubbo:
  registry:
    address: nacos://${spring.cloud.nacos.discovery.server-addr}
  scan:
    base-packages: com.zyf.service.api
  protocol:
    name: dubbo
    port: 20882
  consumer:
    check: false  #检查是否依赖服务
  application:
    qos-enable: false  #dubbo 服务是否开启
  cloud:
    subscribed-services: ''#订阅服务,不配置默认订阅注册中心所有服务

三、创建调用方：service-customer

<?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">
    <parent>
        <artifactId>cloudexample</artifactId>
        <groupId>com.zyf</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service-customer</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <dependency>
            <groupId>com.zyf</groupId>
            <artifactId>service-provider-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

application配置:

server:
  port: 8081
spring:
  application:
    name: service-consumer
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
      config:
        server-addr: ${spring.cloud.nacos.discovery.server-addr}  #配置中心地址
        file-extension: yaml  #文件后缀名     很根据本定文件名称拼接
dubbo:
  cloud:
    subscribed-services: 'service-provider'#订阅要调用的服务

启动类:

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class CuseomerStarter {
    public static void main(String[] args) {
        SpringApplication.run(CuseomerStarter.class,args);
    }
}

restapi测试:

import com.zyf.service.api.DubboTestService;
import org.apache.dubbo.config.annotation.Reference;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {

    @Reference
    private DubboTestService dubboTestService;

    @GetMapping("testDubbo")
    @ResponseBody
    public String test1(){
        String test = dubboTestService.test();
        return test;
    }
}

运行:

先运行nacos服务端:这里使用nacos1.2.1服务端

启动ServiceProviderStater再启动customer