Nacos是一个更易于构建云原生应用的动态服务发现、配置管理和服务管理平台，Nacos 致力于帮助您发现、配置和管理微服务。Nacos 提供了一组简单易用的特性集，帮助您快速实现动态服务发现、服务配置、服务元数据及流量管理。Nacos部署请参考Nacos安装指南：https://www.jianshu.com/p/2e065c15d730
1、跟之前新建SpringBoot自定义扩展一样，我们在GitEgg_Platform中新建gitegg-platform-cloud子工程，此工程主要用于Spring Cloud相关功能的自定义及扩展。
2、在GitEgg_Platform中的gitegg-platform-bom子工程添加SpringCloud Alibaba的依赖
<?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> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.3.3.RELEASE</version> <relativePath /> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-bom</artifactId> <name>${project.artifactId}</name> <version>${gitegg.project.version}</version> <packaging>pom</packaging> <properties> <!-- jdk版本1.8 --> <java.version>1.8</java.version> <!-- maven-compiler-plugin插件版本，Java代码编译 --> <maven.plugin.version>3.8.1</maven.plugin.version> <!-- maven编译时指定编码UTF-8 --> <maven.compiler.encoding>UTF-8</maven.compiler.encoding> <!-- 项目统一字符集编码UTF-8 --> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <!-- 项目统一字符集编码UTF-8 --> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <!-- GitEgg项目统一设置版本号 --> <gitegg.project.version>1.0-SNAPSHOT</gitegg.project.version> <!-- mysql数据库驱动 --> <mysql.connector.version>8.0.17</mysql.connector.version> <!-- postgresql数据库驱动 --> <postgresql.connector.version>9.1-901.jdbc4</postgresql.connector.version> <!-- 数据库连接池Druid --> <druid.version>1.1.23</druid.version> <!-- Mybatis Plus增强工具 --> <mybatis.plus.version>3.4.0</mybatis.plus.version> <!-- Knife4j Swagger2文档 --> <knife4j.version>3.0.1</knife4j.version> <!-- Spring Cloud Alibaba --> <spring.cloud.alibaba>2.2.3.RELEASE</spring.cloud.alibaba> </properties> <dependencyManagement> <dependencies> <!-- gitegg数据库驱动及连接池 --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-db</artifactId> <version>${gitegg.project.version}</version> </dependency> <!-- gitegg mybatis-plus --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-mybatis</artifactId> <version>${gitegg.project.version}</version> </dependency> <!-- gitegg swagger2-knife4j --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-swagger</artifactId> <version>${gitegg.project.version}</version> </dependency> <!-- gitegg boot自定义扩展 --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-boot</artifactId> <version>${gitegg.project.version}</version> </dependency> <!-- gitegg cloud自定义扩展 --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-cloud</artifactId> <version>${gitegg.project.version}</version> </dependency> <!-- mysql数据库驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.connector.version}</version> </dependency> <!-- postgresql数据库驱动 --> <dependency> <groupId>postgresql</groupId> <artifactId>postgresql</artifactId> <version>${postgresql.connector.version}</version> </dependency> <!-- 数据库连接池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>${druid.version}</version> </dependency> <!-- Mybatis Plus增强工具 --> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>${mybatis.plus.version}</version> </dependency> <!-- Swagger2 knife4j bom方式引入 --> <dependency> <groupId>com.github.xiaoymin</groupId> <artifactId>knife4j-dependencies</artifactId> <version>${knife4j.version}</version> <type>pom</type> <scope>import</scope> </dependency> <!-- Spring Cloud Alibaba --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-alibaba-dependencies</artifactId> <version>${spring.cloud.alibaba}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> </project>
3、在gitegg-platform-cloud工程中引入spring-cloud-starter-alibaba-nacos-discovery
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <parent> <artifactId>GitEgg-Platform</artifactId> <groupId>com.gitegg.platform</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>gitegg-platform-cloud</artifactId> <name>${project.artifactId}</name> <version>${project.parent.version}</version> <packaging>jar</packaging> <dependencies> <!-- Nacos 服务注册发现--> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> </dependency> </dependencies> </project>
4、GitEgg_Platform工程重新执行install，在GitEgg_Cloud的子工程gitegg-service中引入gitegg-platform-cloud
<?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>GitEgg-Cloud</artifactId> <groupId>com.gitegg.cloud</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>gitegg-service</artifactId> <packaging>pom</packaging> <modules> <module>gitegg-service-base</module> <module>gitegg-service-bigdata</module> <module>gitegg-service-system</module> </modules> <dependencies> <!-- gitegg Spring Boot自定义及扩展 --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-boot</artifactId> </dependency> <!-- gitegg Spring Cloud自定义及扩展 --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-cloud</artifactId> </dependency> <!-- gitegg数据库驱动及连接池 --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-db</artifactId> </dependency> <!-- gitegg mybatis-plus --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-mybatis</artifactId> </dependency> <!-- gitegg swagger2-knife4j --> <dependency> <groupId>com.gitegg.platform</groupId> <artifactId>gitegg-platform-swagger</artifactId> </dependency> <!-- spring boot web核心包 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- spring boot 健康监控 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> </dependencies> </project>
5、修改application.yml文件，添加nacos配置：
server: port: 8001 spring: application: name: gitegg-service-system cloud: nacos: discovery: server-addr: 127.0.0.1:8848 datasource: type: com.alibaba.druid.pool.DruidDataSource url: jdbc:mysql://127.0.0.1/gitegg_cloud?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=utf8&allowMultiQueries=true username: root password: root initialSize: 1 minIdle: 3 maxActive: 20 # 配置获取连接等待超时的时间 maxWait: 60000 # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 timeBetweenEvictionRunsMillis: 60000 # 配置一个连接在池中最小生存的时间，单位是毫秒 minEvictableIdleTimeMillis: 30000 validationQuery: select 'x' testWhileIdle: true testOnBorrow: false testOnReturn: false # 打开PSCache，并且指定每个连接上PSCache的大小 poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 20 # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙 filters: config,stat,slf4j # 通过connectProperties属性来打开mergeSql功能；慢SQL记录 connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000; # 合并多个DruidDataSource的监控数据 useGlobalDataSourceStat: true mybatis-plus: mapper-locations: classpath*:/com/gitegg/*/*/mapper/*Mapper.xml typeAliasesPackage: com.gitegg.*.*.entity global-config: #主键类型 0:"数据库ID自增", 1:"用户输入ID",2:"全局唯一ID (数字类型唯一ID)", 3:"全局唯一ID UUID"; id-type: 2 #字段策略 0:"忽略判断",1:"非 NULL 判断"),2:"非空判断" field-strategy: 2 #驼峰下划线转换 db-column-underline: true #刷新mapper 调试神器 refresh-mapper: true #数据库大写下划线转换 #capital-mode: true #逻辑删除配置 logic-delete-value: 1 logic-not-delete-value: 0 configuration: map-underscore-to-camel-case: true cache-enabled: false
6、修改GitEggSystemApplication.java添加注解@EnableDiscoveryClient,然后运行GitEggSystemApplication：
package com.gitegg.service.system; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; import org.springframework.context.annotation.ComponentScan; /** * gitegg-system 启动类 */ @EnableDiscoveryClient @ComponentScan(basePackages = "com.gitegg") @MapperScan("com.gitegg.*.*.mapper") @SpringBootApplication public class GitEggSystemApplication { public static void main(String[] args) { SpringApplication.run(GitEggSystemApplication.class,args); } }
7、在浏览器中打开nacos的地址，点击左侧菜单的服务列表，可以查看到服务已经注册到nacos
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