版本
- springboot版本:2.5.0
- spring-cloud版本:2020.0.4
- spring-cloud-alibaba版本:2021.1
項目結構
- 父工程:halo-nacos
- 子工程:alibaba-nacos-discovery-client
-
子工程:alibaba-nacos-discovery-server
父工程 halo-nacos
- 父工程依賴:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.0</version>
<relativePath/>
</parent>
<groupId>gc</groupId>
<artifactId>halo-nacos</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>halo-nacos</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2020.0.4</spring-cloud.version>
<spring-cloud-alibaba.version>2021.1</spring-cloud-alibaba.version>
</properties>
<packaging>pom</packaging>
<modules>
<module>alibaba-nacos-discovery-server</module>
<module>alibaba-nacos-discovery-client</module>
</modules>
<dependencies>
<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>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
<version>2.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.2</version>
<optional>true</optional>
</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>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${spring-cloud-alibaba.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
子工程alibaba-nacos-discovery-server
- 子工程alibaba-nacos-discovery-server依賴
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>gc</groupId>
<artifactId>halo-nacos</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>gc</groupId>
<artifactId>alibaba-nacos-discovery-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>alibaba-nacos-discovery-server</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
- alibaba-nacos-discovery-server 配置文件:
spring:
application:
name: alibaba-nacos-discovery-server
cloud:
nacos:
discovery:
server-addr: 127.0.0.1:8848
namespace: b0183db0-0121-4b23-ae28-57a4872eda3f
server:
port: 8082
- alibaba-nacos-discovery-server 啓動類:
package gc.alibabanacosdiscoveryserver;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@Slf4j
@EnableDiscoveryClient
@SpringBootApplication
public class AlibabaNacosDiscoveryServerApplication {
public static void main(String[] args) {
SpringApplication.run(AlibabaNacosDiscoveryServerApplication.class, args);
log.info("Server啓動成功");
}
}
- 子工程alibaba-nacos-discovery-client依賴
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>gc</groupId>
<artifactId>halo-nacos</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>gc</groupId>
<artifactId>alibaba-nacos-discovery-client</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>alibaba-nacos-discovery-client</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
- alibaba-nacos-discovery-client配置文件:
spring:
application:
name: alibaba-nacos-discovery-client
cloud:
nacos:
discovery:
server-addr: 127.0.0.1:8848
namespace: b0183db0-0121-4b23-ae28-57a4872eda3f
server:
port: 8084
- alibaba-nacos-discovery-client啓動類:
package gc.alibabanacosdiscoveryclient;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.context.config.annotation.RefreshScope;
@Slf4j
@EnableDiscoveryClient
@SpringBootApplication
public class AlibabaNacosDiscoveryClientApplication {
public static void main(String[] args) {
SpringApplication.run(AlibabaNacosDiscoveryClientApplication.class, args);
log.info("client啓動成功");
}
}
分別啓動server和client
服務的EndPoint
父工程新增以下依賴,重新啓動項目
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
spring-cloud-starter-alibaba-nacos-discovery 在實現的時候提供了一個EndPoint,EndPoint的訪問地址爲 http://ip:port/actuator/nacos-discovery 。因爲我們加了 spring-boot-starter-actuator 依賴,所以可以查看endpoint信息。EndPoint 的信息主要提供了兩類:
Subscribe: 顯示了當前有哪些服務訂閱者
NacosDiscoveryProperties: 顯示了當前服務實例關於 Nacos 的基礎配置