SpringBoot整合Nacos

参考： https://nacos.io/zh-cn/docs/quick-start-spring-boot.html

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版本

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <springboot.version>2.5.3</springboot.version>
        <lombok.version>1.18.10</lombok.version>
        <liteflow.version>2.11.3</liteflow.version>
        <nacos.config.version>0.2.12</nacos.config.version>
        <nacos.discovery.version>0.2.12</nacos.discovery.version>
        <mariadb.version>2.3.0</mariadb.version>
    </properties>

pom.xml

<?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>web-parent</artifactId>
        <groupId>com.test</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>nacos2</artifactId>

    <name>nacos2</name>
    <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>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>nacos-config-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>nacos-discovery-spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.mariadb.jdbc</groupId>
            <artifactId>mariadb-java-client</artifactId>
        </dependency>

    </dependencies>

    <build>
        <finalName>Nacos2</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${springboot.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

application.yaml

spring:
  application:
    name: Nacos2

server:
  servlet:
    context-path: /nacos2
  port: 8890

nacos:
  #配置中心
  config:
    bootstrap:
      enable: true
    server-addr: 127.0.0.1:8848
    namespace: f1f6eec6-1380-4731-8676-6e51ddeea861
    group: web-project
    data-id: web-nacos
    type: yaml
    auto-refresh: true
    remote-first: true
    
  # 服务注册与发现
  discovery:
    server-addr: 127.0.0.1:8848
    #是否将本应用注册到nacos服务列表，默认是false
    auto-register: true
    #本服务所属的命名空间的ID，默认是空，也就是public
    namespace: f1f6eec6-1380-4731-8676-6e51ddeea861
    register:
      #本服务是否接受外部的请求，默认true
      enabled: true
      #本服务要注册到命名空间下的哪个组，默认DEFAULT_GROUP
      group-name: web-project
      #服务的名称，会展示在nacos服务列表，要求唯一，可以不写，默认是spring.application.name的值
      service-name: Nacos2

Nacos2App.java

package com.test;

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

@SpringBootApplication
public class Nacos2App {
    public static void main(String[] args) {
        SpringApplication.run(Nacos2App.class, args);
    }
}

TestController.java（测试配置中心）

package com.test.controller;

import com.alibaba.nacos.api.config.annotation.NacosValue;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RequestMapping("/test")
@RestController
public class TestController {

    @NacosValue(value = "${people.name}", autoRefreshed = true)
    private String name;

    @NacosValue(value = "${people.age}", autoRefreshed = true)
    private int age;

    @NacosValue(value = "${address}", autoRefreshed = true)
    private String address;

    @GetMapping("/get")
    public String get() {
        return name + ", "+ age +", "+ address;
    }

}

DiscoveryController.java（测试服务注册发现）

调用获取实例方法时

@RequestMapping("/test2")
@RestController
public class DiscoveryController {

    @NacosInjected
    private NamingService namingService;

}