SpringCloud项目中接入Nacos作为注册中心- 创建服务提供者

 

 IDEA中创建聚合工程Nacos作为父工程，其pom.xml如下（重点关注dependencyManagement配置）：了解springcloud架构可以加求求：三五三六二四七二五九

<?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>larscheng-learning-demo</artifactId>
        <groupId>com.study.www</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <version>0.0.1-SNAPSHOT</version>
    <modelVersion>4.0.0</modelVersion>

    <modules>
        <module>nacos-provide</module>
    </modules>

    <artifactId>Nacos</artifactId>

    <properties>
        <java.version>1.8</java.version>
        <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
        <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
        <nacos.version>0.2.2.RELEASE</nacos.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

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

</project>

 在父工程Nacos下创建springboot子工程nacos-provide，其pom.xml文件为：

<?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>
        <artifactId>Nacos</artifactId>
        <groupId>com.study.www</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <groupId>com.larscheng.www</groupId>
    <artifactId>nacos-provide</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>nacos-provide</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

 在NacosProvideApplication.java中提供一个对外接口，并添加注解@EnableDiscoveryClient 开启服务注册发现功能：

@RestController
@EnableDiscoveryClient
@SpringBootApplication
public class NacosProvideApplication {

    public static void main(String[] args) {
        SpringApplication.run(NacosProvideApplication.class, args);
    }
    
    @GetMapping("/helloNacos")
    public String helloNacos(){
        return "你好，nacos！";
    }
}

 配置文件application.yml进行如下配置

server:
  port: 9527
spring:
  application:
    name: nacos-provide
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848