Nacos是阿里的一款开源作品，本文记录使用SpringCloud Alibaba结合nacos简单示例demo
版本介绍
- Springboot2.1.9.RELEASE
- SpringCloud Greenwich.SR3
- SpringCloudAlibaba2.1.0.RELEASE
前提条件
下载并启动nacos，下载地址：nacos下载
选择自己想要的版本下载后解压，进入bin文件夹，选择对应的启动脚本（里面有linux和windows两种），我是在windows下使用，直接点击startup.cmd即可。
启动后会看到如下界面
复制控制台的地址打开，默认登陆账号密码：nacos/nacos
创建应用
为了后期方便管理依赖，我先创建了一个父级maven项目，pom文件如下1
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85<?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.itfuyun</groupId>
<artifactId>SpringCloud-Alibaba-Example</artifactId>
<packaging>pom</packaging>
<version>1.0.RELEASE</version>
<modules>
<module>example-nacos-discovery</module>
</modules>
<name>SpringCloud-Alibaba-Example</name>
<url>https://www.itfuyun.com</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.9.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<lombok.version>1.18.6</lombok.version>
<spring.cloud.version>Greenwich.SR3</spring.cloud.version>
<alibaba.cloud.version>2.1.0.RELEASE</alibaba.cloud.version>
</properties>
<dependencies>
<!--测试包 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring.cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${alibaba.cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
添加一个maven项目子模块example-nacos-discovery，pom中引入nacos依赖1
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10<!--web支持-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--nacos服务治理-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
创建项目启动类NacosDiscoveryApplication1
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7@SpringBootApplication
@EnableDiscoveryClient
public class NacosDiscoveryApplication {
public static void main(String[] args) {
SpringApplication.run(NacosDiscoveryApplication.class,args);
}
}
添加项目配置文件application.yml1
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7spring:
application:
name: nacos-discovery
cloud:
nacos:
discovery:
server-addr: 127.0.0.1:8848 #nacos地址
整体项目结构图如下
运行
启动项目
进入nacos界面查看服务实例，发现服务实例已经注册
代码示例
具体项目名为example-nacos-discovery
- Github：SpringCloud-Alibaba-Example