SpringCloudAlibaba篇（二）整合Nacos注册配置中心

上一篇，SpringCloudAlibaba篇（一）搭建父工程，并初始化推送到git仓库

文章目录

1.创建子模块

serivce-starter-parent 用作被微服务继承的父工程

1.1添加依赖

<?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>
        <artifactId>SpringCloudAlibaba2022</artifactId>
        <groupId>top.fate</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service-starter-parent</artifactId>
    <name>${project.artifactId}</name>
    <version>${fate.project.version}</version>
    <packaging>pom</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--SpringBoot2.4.x之后默认不加载bootstrap.yml文件，需要在pom里加上依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bootstrap</artifactId>
        </dependency>
        <!-- Sentinel -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
            <version>${spring-cloud-alibaba.version}</version>
        </dependency>
        <!-- Nacos -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>com.alibaba.nacos</groupId>
                    <artifactId>nacos-client</artifactId>
                </exclusion>
            </exclusions>
            <version>${spring-cloud-alibaba.version}</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>com.alibaba.nacos</groupId>
                    <artifactId>nacos-client</artifactId>
                </exclusion>
            </exclusions>
            <version>${spring-cloud-alibaba.version}</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>${alibaba.nacos.version}</version>
        </dependency>

        <!-- Druid -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.22</version>
        </dependency>
        <!-- MySQL -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.16</version>
        </dependency>
        <!-- MyBatis-Plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>${mybatis.plus.version}</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                    <finalName>${project.name}</finalName>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2.创建user-service服务模块

在这里插入图片描述

2.1.添加依赖

<?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>
        <artifactId>SpringCloudAlibaba2022</artifactId>
        <groupId>top.fate</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>user-serivce</artifactId>
    <name>${project.artifactId}</name>
    <version>${fate.project.version}</version>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>top.fate</groupId>
            <artifactId>service-starter-parent</artifactId>
            <version>1.0.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

2.2 创建UserApplication

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

3.配置nacos

3.1拉取并运行nacos

nacos下载地址
下载解压进入bin目录，这里我直接在win本地运行

在这里插入图片描述

startup.cmd -m standalone

在这里插入图片描述

访问 localhost:8848/nacos 默认账号密码nacos/nacos

3.2.user-service创建 application.yml ,bootstrap.yml文件

在这里插入图片描述
bootstrap.yml

url:
 nacos: 127.0.0.1:8848
spring:
 application:
   name: user-service #实例名
 profiles:
   active: dev
 cloud:
   nacos:
     discovery:
       #集群环境隔离
       cluster-name: shanghai
       #命名空间
       namespace: ${
    
    spring.profiles.active}
       #持久化实例 ture为临时实例 false为持久化实例  临时实例发生异常直接剔除, 而持久化实例等待恢复
       ephemeral: true
       #注册中心地址
       server-addr: ${
    
    url.nacos}
     config:
       namespace: ${
    
    spring.profiles.active}
       file-extension: yaml
       #配置中心地址
       server-addr: ${
    
    url.nacos}
       extension-configs[0]:
         data-id: mysql-user.yaml
         group: DEFAULT_GROUP
         refresh: false

3.3.nacos配置管理中创建配置文件

nacos创建dev命名空间
新建mysql-user.yaml

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spring:
  datasource:
    url: jdbc:mysql://localhost:9096/cloud_user?useSSL=false&allowPublicKeyRetrieval=true
    username: root
    password: 123
    driver-class-name: com.mysql.cj.jdbc.Driver
mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl