Spring Cloud Alibaba 微服务工具集之Nacos解决服务注册中心和统一配置中心

<?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.tjcu</groupId>
    <artifactId>SpringCloud_Alibaba</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <spring.cloud.version>Hoxton.SR6</spring.cloud.version>
        <spring.cloud.alibaba.version>2.2.1.RELEASE</spring.cloud.alibaba.version>
    </properties>
    <!--继承springboot父项目-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
    </parent>
    <!--维护依赖-->
    <dependencyManagement>
        <dependencies>
            <!--维护springcloud-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring.cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--维护springcloud alibaba-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring.cloud.alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

- bin        启动nacos服务的脚本目录
- conf       nacos的配置文件目录
- target     nacos的启动依赖存放目录
- data       nacos启动成功后保存数据的目录

   <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--引入nacos client的依赖-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
    </dependencies>

#指定当前端口号
server.port=8989
#指定服务名称
spring.application.name=nacosClient
#指定nacos服务地址
spring.cloud.nacos.server-addr=192.168.5.128:8848
#指定注册中心地址
spring.cloud.nacos.discovery.server-addr=${spring.cloud.nacos.server-addr}
#暴露所有web端点
management.endpoints.web.exposure.include=*    

@EnableDiscoveryClient  //发现服务注册注解
@SpringBootApplication
public class NacosClientApplication {
    public static void main(String[] args) {
        SpringApplication.run(NacosClientApplication.class, args);
    }
}

   <!--引入nacos client的依赖-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!--引入配置中心依赖-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>

#指定nacos配置中心地址
spring.cloud.nacos.server-addr=192.168.5.128:8848
#指定nacos地址读取配置
spring.cloud.nacos.config.server-addr=${spring.cloud.nacos.server-addr}
#读取配置的分组,告诉从那个组进行配置获取
spring.cloud.nacos.config.group=DEFAULT_GROUP
#指定读取文件的后缀
spring.cloud.nacos.config.file-extension=properties
#从那个组拉取配置文件
spring.cloud.nacos.config.name=application-port

server.port=9999
spring.application.name=C
spring.cloud.nacos.discovery.server-addr=192.168.5.128:8848
customer.username=王恒杰

@RestController
@RefreshScope  //允许远程配置修改自动刷新
public class CustomerAction {
    @Value("${customer.username}")
    private String username;
    @GetMapping("/findName")
    public String findName() {
        System.out.println(username);
        return "返回姓名：" + username;
    }
}

#指定读取文件的后缀
spring.cloud.nacos.config.file-extension=properties
#从那个组拉取配置文件
spring.cloud.nacos.config.name=application-prod

#指定读取文件的后缀
spring.cloud.nacos.config.file-extension=properties
# 指定读取文件的前缀
spring.application.name=application    
 # 指定读取文件的具体环境                   
spring.profiles.active=prod                         

#读取不同分组的配置
Spring.cloud.nacos.config.group=student_group

[mysql56-community]
 name=MySQL 5.6 Community Server
 baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/7/$basearch/
  enabled=1
  gpgcheck=0
  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

spring.datasource.platform=mysql
db.num=1
db.url.0=jdbc:mysql://127.0.0.1:3306/nacos_config?    
      characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true
      &useUnicode=true&useSSL=false&serverTimezone=UTC
db.user=root
db.password=Root!Q2w

upstream  nacos-servers {
  server 192.168.5.128:8845;
  server 192.168.5.128:8846;
  server 192.168.5.128:8847;
}

location / {
  proxy_pass http://nacos-servers/;
  }