【SpringCloud】 Re02 Nacos

 

运行Nacos注册中心

win版Nacos在bin目录下打开cmd

执行此命令以运行单机模式的Nacos

startup.cmd -m standalone

控制台输出：

Microsoft Windows [版本 10.0.19042.1237]
(c) Microsoft Corporation。保留所有权利。

E:
acosin>startup.cmd -m standalone
"nacos is starting with standalone"

         ,--.
       ,--.'|
   ,--,:  : |                                           Nacos 1.4.1
,`--.'`|  ' :                       ,---.               Running in stand alone mode, All function modules
|   :  :  | |                      '   ,'   .--.--.    Port: 8848
:   |    | :  ,--.--.     ,---.  /   /   | /  /    '   Pid: 2980
|   : '  '; | /          /     .   ; ,. :|  :  /`./   Console: http://192.168.2.209:8848/nacos/index.html
'   ' ;.    ;.--.  .-. | /    / ''   | |: :|  :  ;_
|   | |    | \__/: . ..    ' / '   | .; :       `.      https://nacos.io
'   : |  ; .' ," .--.; |'   ; :__|   :    |  `----.   
|   | '`--'  /  /  ,.  |'   | '.'|     /  /  /`--'  /
'   : |     ;  :   .'      :    : `----'  '--'.     /
;   |.'     |  ,     .-./     /            `--'---'
'---'        `--`---'     `----'

2021-09-20 07:56:00,124 INFO Bean 'org.springframework.security.access.expression.method.DefaultMethodSecurityExpressionHandler@1a4b042' of type [org.springframework.security.access.expression.method.DefaultMethodSecurityExpressionHandler] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)

2021-09-20 07:56:00,134 INFO Bean 'methodSecurityMetadataSource' of type [org.springframework.security.access.method.DelegatingMethodSecurityMetadataSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)

2021-09-20 07:56:00,653 INFO Tomcat initialized with port(s): 8848 (http)

2021-09-20 07:56:01,140 INFO Root WebApplicationContext: initialization completed in 5541 ms

2021-09-20 07:56:12,860 INFO Initializing ExecutorService 'applicationTaskExecutor'

2021-09-20 07:56:12,984 INFO Adding welcome page: class path resource [static/index.html]

2021-09-20 07:56:13,489 INFO Creating filter chain: Ant [pattern='/**'], []

2021-09-20 07:56:13,536 INFO Creating filter chain: any request, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@606de, org.springframework.security.web.context.SecurityContextPersistenceFilter@5f09de, org.springframework.security.web.header.HeaderWriterFilter@4344fa, org.springframework.security.web.csrf.CsrfFilter@19b2a5c, org.springframework.security.web.authentication.logout.LogoutFilter@238be2, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@1500940, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@49dadf, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@10fe12e, org.springframework.security.web.session.SessionManagementFilter@e659aa, org.springframework.security.web.access.ExceptionTranslationFilter@1fca1e]

2021-09-20 07:56:13,720 INFO Initializing ExecutorService 'taskScheduler'

2021-09-20 07:56:13,741 INFO Exposing 2 endpoint(s) beneath base path '/actuator'

2021-09-20 07:56:13,857 INFO Tomcat started on port(s): 8848 (http) with context path '/nacos'

2021-09-20 07:56:13,861 INFO Nacos started successfully in stand alone mode. use embedded storage

2021-09-20 07:56:29,250 INFO Initializing Servlet 'dispatcherServlet'

2021-09-20 07:56:29,262 INFO Completed initialization in 12 ms

访问页面地址：

http://192.168.2.209:8848/nacos/index.html

发现360极速浏览器和Edge都是一片空白

后知后觉要切换模式，但是我也不明白这是为什么

然后就可以看到登录首页了

账号密码都是nacos

将服务注册到Nacos中

首先在总项目的父工程中配置springCloudAlibaba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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.itcast.demo</groupId>
    <artifactId>cloud-demo</artifactId>
    <version>1.0</version>
    <modules>
        <module>user-service</module>
        <module>order-service</module>
        <module>eureka-server</module>
        <module>feign-api</module>
        <module>gateway</module>
    </modules>

    <packaging>pom</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.9.RELEASE</version>
        <relativePath/>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR10</spring-cloud.version>
        <mysql.version>5.1.47</mysql.version>
        <mybatis.version>2.1.1</mybatis.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!-- springCloud -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--nacos的管理依赖-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.5.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- mysql驱动 -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!--mybatis-->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>
</project>

需要注册的服务都把Eureka组件替换成Nacos组件：

<?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>cloud-demo</artifactId>
        <groupId>cn.itcast.demo</groupId>
        <version>1.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>order-service</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <!--eureka客户端依赖-->
        <!--<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>-->
        <!-- nacos客户端依赖包 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!--feign客户端依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <!--引入HttpClient依赖-->
        <dependency>
            <groupId>io.github.openfeign</groupId>
            <artifactId>feign-httpclient</artifactId>
        </dependency>
        <!--引入feign的统一api-->
        <dependency>
            <groupId>cn.itcast.demo</groupId>
            <artifactId>feign-api</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>app</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

第三步，被注册的服务还需要配置上nacos的地址信息：

server:
  port: 8088
spring:
  datasource:
    url: jdbc:mysql://mysql:3308/cloud_order?useSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
  application:
    name: orderservice
  cloud:
    nacos:
      server-addr: nacos:8848 # nacos服务地址
#      discovery:
#        namespace: 4d6ce343-9e1b-44df-a90f-2cf2b6b3d177 # dev环境
#        ephemeral: false # 是否是临时实例
mybatis:
  type-aliases-package: cn.itcast.user.pojo
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    cn.itcast: debug
  pattern:
    dateformat: MM-dd HH:mm:ss:SSS
#eureka:
#  client:
#    service-url:  # eureka的地址信息
#      defaultZone: http://127.0.0.1:10086/eureka
userservice:
  ribbon:
    NFLoadBalancerRuleClassName: com.alibaba.cloud.nacos.ribbon.NacosRule  # 负载均衡规则
ribbon:
  eager-load:
    enabled: true # 开启饥饿加载
    clients: # 指定饥饿加载的服务名称
      - userservice
feign:
  httpclient:
    enabled: true # 支持HttpClient的开关
    max-connections: 200 # 最大连接数
    max-connections-per-route: 50 # 单个路径的最大连接数

Nacos服务分级存储模型？

保证服务安全

 

 解决服务跨集群调用

一级 服务

二级 集群

三级 实例

配置集群，多实例启动以模拟集群

server:
  port: 8081
spring:
  datasource:
    url: jdbc:mysql://mysql:3308/cloud_user?useSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
  shardingsphere:
    sharding:
      default-database-strategy:
      tables:
        
  cloud:
    nacos:
      server-addr: localhost:8848
      discovery:
        cluster-name: HZ # 集群名称  HZ / SH
      

mybatis:
  type-aliases-package: cn.itcast.user.pojo
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    cn.itcast: debug
  pattern:
    dateformat: MM-dd HH:mm:ss:SSS
#eureka:
#  client:
#    service-url:  # eureka的地址信息
#      defaultZone: http://127.0.0.1:10086/eureka
pattern:
  name: 本地环境local

NacosRule负载均衡

server:
  port: 8088
spring:
  datasource:
    url: jdbc:mysql://mysql:3308/cloud_order?useSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
  application:
    name: orderservice
  cloud:
    nacos:
      server-addr: nacos:8848 # nacos服务地址
#      discovery:
#        namespace: 4d6ce343-9e1b-44df-a90f-2cf2b6b3d177 # dev环境
#        ephemeral: false # 是否是临时实例
mybatis:
  type-aliases-package: cn.itcast.user.pojo
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    cn.itcast: debug
  pattern:
    dateformat: MM-dd HH:mm:ss:SSS
#eureka:
#  client:
#    service-url:  # eureka的地址信息
#      defaultZone: http://127.0.0.1:10086/eureka
userservice:
  ribbon:
    NFLoadBalancerRuleClassName: com.alibaba.cloud.nacos.ribbon.NacosRule  # 负载均衡规则
ribbon:
  eager-load:
    enabled: true # 开启饥饿加载
    clients: # 指定饥饿加载的服务名称
      - userservice
feign:
  httpclient:
    enabled: true # 支持HttpClient的开关
    max-connections: 200 # 最大连接数
    max-connections-per-route: 50 # 单个路径的最大连接数

权重配置调整：

权重调整在 0 ~ 1 范围内

环境隔离 

nameSpace > group > service/data

https://www.bilibili.com/video/BV1LQ4y127n4?p=22

标记为临时服务实例，Nacos检测此服务发现不健康时，将直接从注册中心中删除

 配置为是否是临时实例：

server:
  port: 8088
spring:
  datasource:
    url: jdbc:mysql://mysql:3308/cloud_order?useSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
  application:
    name: orderservice
  cloud:
    nacos:
      server-addr: nacos:8848 # nacos服务地址
#      discovery:
#        namespace: 4d6ce343-9e1b-44df-a90f-2cf2b6b3d177 # dev环境
#        ephemeral: false # 是否是临时实例
mybatis:
  type-aliases-package: cn.itcast.user.pojo
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    cn.itcast: debug
  pattern:
    dateformat: MM-dd HH:mm:ss:SSS
#eureka:
#  client:
#    service-url:  # eureka的地址信息
#      defaultZone: http://127.0.0.1:10086/eureka
userservice:
  ribbon:
    NFLoadBalancerRuleClassName: com.alibaba.cloud.nacos.ribbon.NacosRule  # 负载均衡规则
ribbon:
  eager-load:
    enabled: true # 开启饥饿加载
    clients: # 指定饥饿加载的服务名称
      - userservice
feign:
  httpclient:
    enabled: true # 支持HttpClient的开关
    max-connections: 200 # 最大连接数
    max-connections-per-route: 50 # 单个路径的最大连接数

Nacos配置管理：

配置信息 统一管理

配置信息 热更新

配置信息 可共享

搭建Nacos集群

https://www.bilibili.com/video/BV1LQ4y127n4?p=25

 配置管理：

引入Nacos配置管理客户端依赖：

<?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>cloud-demo</artifactId>
        <groupId>cn.itcast.demo</groupId>
        <version>1.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>user-service</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <!--eureka客户端依赖-->
        <!--<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>-->
        <!-- nacos客户端依赖包 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!--nacos的配置管理依赖-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
    </dependencies>
    <build>
        <finalName>app</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

配置引导文件，bootstrap.yml

spring:
  application:
    name: userservice
  profiles:
    active: dev # 环境
  cloud:
    nacos:
      server-addr: nacos:8848 # nacos地址
      config:
        file-extension: yaml # 文件后缀名

热更新实现

第一种 @Value + @RefreshScope

package cn.itcast.user.web;

import cn.itcast.user.config.PatternProperties;
import cn.itcast.user.pojo.User;
import cn.itcast.user.service.UserService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

@Slf4j
@RestController
@RequestMapping("/user")
// @RefreshScope
public class UserController {

    @Autowired
    private UserService userService;

    // @Value("${pattern.dateformat}")
    // private String dateformat;

    @Autowired
    private PatternProperties properties;

    @GetMapping("prop")
    public PatternProperties properties(){
        return properties;
    }

    @GetMapping("now")
    public String now(){
        return LocalDateTime.now().format(DateTimeFormatter.ofPattern(properties.getDateformat()));
    }

    /**
     * 路径： /user/110
     *
     * @param id 用户id
     * @return 用户
     */
    @GetMapping("/{id}")
    public User queryById(@PathVariable("id") Long id,
                          @RequestHeader(value = "Truth", required = false) String truth) {
        System.out.println("truth: " + truth);
        return userService.queryById(id);
    }
}

第二种热更新配置方式：

package cn.itcast.user.config;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Data
@Component
@ConfigurationProperties(prefix = "pattern")
public class PatternProperties {
    private String dateformat;
    private String envSharedValue;
    private String name;
}

多环境配置共享

 

 

集群搭建 ：

图的意思是注册的服务先经过Nginx反向代理和负载均衡之后分配到集群的其中一个，再找到对应配置

现在数据库中创建Nacos库，并执行下面的SQL语句：

CREATE TABLE `config_info` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) NOT NULL COMMENT 'data_id',
  `group_id` varchar(255) DEFAULT NULL,
  `content` longtext NOT NULL COMMENT 'content',
  `md5` varchar(32) DEFAULT NULL COMMENT 'md5',
  `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` text COMMENT 'source user',
  `src_ip` varchar(50) DEFAULT NULL COMMENT 'source ip',
  `app_name` varchar(128) DEFAULT NULL,
  `tenant_id` varchar(128) DEFAULT '' COMMENT '租户字段',
  `c_desc` varchar(256) DEFAULT NULL,
  `c_use` varchar(64) DEFAULT NULL,
  `effect` varchar(64) DEFAULT NULL,
  `type` varchar(64) DEFAULT NULL,
  `c_schema` text,
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfo_datagrouptenant` (`data_id`,`group_id`,`tenant_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_info';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_info_aggr   */
/******************************************/
CREATE TABLE `config_info_aggr` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) NOT NULL COMMENT 'data_id',
  `group_id` varchar(255) NOT NULL COMMENT 'group_id',
  `datum_id` varchar(255) NOT NULL COMMENT 'datum_id',
  `content` longtext NOT NULL COMMENT '内容',
  `gmt_modified` datetime NOT NULL COMMENT '修改时间',
  `app_name` varchar(128) DEFAULT NULL,
  `tenant_id` varchar(128) DEFAULT '' COMMENT '租户字段',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfoaggr_datagrouptenantdatum` (`data_id`,`group_id`,`tenant_id`,`datum_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='增加租户字段';


/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_info_beta   */
/******************************************/
CREATE TABLE `config_info_beta` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) NOT NULL COMMENT 'data_id',
  `group_id` varchar(128) NOT NULL COMMENT 'group_id',
  `app_name` varchar(128) DEFAULT NULL COMMENT 'app_name',
  `content` longtext NOT NULL COMMENT 'content',
  `beta_ips` varchar(1024) DEFAULT NULL COMMENT 'betaIps',
  `md5` varchar(32) DEFAULT NULL COMMENT 'md5',
  `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` text COMMENT 'source user',
  `src_ip` varchar(50) DEFAULT NULL COMMENT 'source ip',
  `tenant_id` varchar(128) DEFAULT '' COMMENT '租户字段',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfobeta_datagrouptenant` (`data_id`,`group_id`,`tenant_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_info_beta';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_info_tag   */
/******************************************/
CREATE TABLE `config_info_tag` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) NOT NULL COMMENT 'data_id',
  `group_id` varchar(128) NOT NULL COMMENT 'group_id',
  `tenant_id` varchar(128) DEFAULT '' COMMENT 'tenant_id',
  `tag_id` varchar(128) NOT NULL COMMENT 'tag_id',
  `app_name` varchar(128) DEFAULT NULL COMMENT 'app_name',
  `content` longtext NOT NULL COMMENT 'content',
  `md5` varchar(32) DEFAULT NULL COMMENT 'md5',
  `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` text COMMENT 'source user',
  `src_ip` varchar(50) DEFAULT NULL COMMENT 'source ip',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfotag_datagrouptenanttag` (`data_id`,`group_id`,`tenant_id`,`tag_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_info_tag';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_tags_relation   */
/******************************************/
CREATE TABLE `config_tags_relation` (
  `id` bigint(20) NOT NULL COMMENT 'id',
  `tag_name` varchar(128) NOT NULL COMMENT 'tag_name',
  `tag_type` varchar(64) DEFAULT NULL COMMENT 'tag_type',
  `data_id` varchar(255) NOT NULL COMMENT 'data_id',
  `group_id` varchar(128) NOT NULL COMMENT 'group_id',
  `tenant_id` varchar(128) DEFAULT '' COMMENT 'tenant_id',
  `nid` bigint(20) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`nid`),
  UNIQUE KEY `uk_configtagrelation_configidtag` (`id`,`tag_name`,`tag_type`),
  KEY `idx_tenant_id` (`tenant_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_tag_relation';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = group_capacity   */
/******************************************/
CREATE TABLE `group_capacity` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `group_id` varchar(128) NOT NULL DEFAULT '' COMMENT 'Group ID，空字符表示整个集群',
  `quota` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '配额，0表示使用默认值',
  `usage` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '使用量',
  `max_size` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '单个配置大小上限，单位为字节，0表示使用默认值',
  `max_aggr_count` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '聚合子配置最大个数，，0表示使用默认值',
  `max_aggr_size` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '单个聚合数据的子配置大小上限，单位为字节，0表示使用默认值',
  `max_history_count` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '最大变更历史数量',
  `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_group_id` (`group_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='集群、各Group容量信息表';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = his_config_info   */
/******************************************/
CREATE TABLE `his_config_info` (
  `id` bigint(64) unsigned NOT NULL,
  `nid` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `data_id` varchar(255) NOT NULL,
  `group_id` varchar(128) NOT NULL,
  `app_name` varchar(128) DEFAULT NULL COMMENT 'app_name',
  `content` longtext NOT NULL,
  `md5` varchar(32) DEFAULT NULL,
  `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `src_user` text,
  `src_ip` varchar(50) DEFAULT NULL,
  `op_type` char(10) DEFAULT NULL,
  `tenant_id` varchar(128) DEFAULT '' COMMENT '租户字段',
  PRIMARY KEY (`nid`),
  KEY `idx_gmt_create` (`gmt_create`),
  KEY `idx_gmt_modified` (`gmt_modified`),
  KEY `idx_did` (`data_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='多租户改造';


/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = tenant_capacity   */
/******************************************/
CREATE TABLE `tenant_capacity` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `tenant_id` varchar(128) NOT NULL DEFAULT '' COMMENT 'Tenant ID',
  `quota` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '配额，0表示使用默认值',
  `usage` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '使用量',
  `max_size` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '单个配置大小上限，单位为字节，0表示使用默认值',
  `max_aggr_count` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '聚合子配置最大个数',
  `max_aggr_size` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '单个聚合数据的子配置大小上限，单位为字节，0表示使用默认值',
  `max_history_count` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '最大变更历史数量',
  `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_tenant_id` (`tenant_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='租户容量信息表';


CREATE TABLE `tenant_info` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `kp` varchar(128) NOT NULL COMMENT 'kp',
  `tenant_id` varchar(128) default '' COMMENT 'tenant_id',
  `tenant_name` varchar(128) default '' COMMENT 'tenant_name',
  `tenant_desc` varchar(256) DEFAULT NULL COMMENT 'tenant_desc',
  `create_source` varchar(32) DEFAULT NULL COMMENT 'create_source',
  `gmt_create` bigint(20) NOT NULL COMMENT '创建时间',
  `gmt_modified` bigint(20) NOT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_tenant_info_kptenantid` (`kp`,`tenant_id`),
  KEY `idx_tenant_id` (`tenant_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='tenant_info';

CREATE TABLE `users` (
    `username` varchar(50) NOT NULL PRIMARY KEY,
    `password` varchar(500) NOT NULL,
    `enabled` boolean NOT NULL
);

CREATE TABLE `roles` (
    `username` varchar(50) NOT NULL,
    `role` varchar(50) NOT NULL,
    UNIQUE INDEX `idx_user_role` (`username` ASC, `role` ASC) USING BTREE
);

CREATE TABLE `permissions` (
    `role` varchar(50) NOT NULL,
    `resource` varchar(255) NOT NULL,
    `action` varchar(8) NOT NULL,
    UNIQUE INDEX `uk_role_permission` (`role`,`resource`,`action`) USING BTREE
);

INSERT INTO users (username, password, enabled) VALUES ('nacos', '$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu', TRUE);

INSERT INTO roles (username, role) VALUES ('nacos', 'ROLE_ADMIN');

1、解压Nacos （全新未作改动的）

2、复制cluster.conf.example 并将副本重命名为 cluster.conf

配置集群节点的IP和端口：

127.0.0.1:8845
127.0.0.1.8846
127.0.0.1.8847

3、然后配置MySQL的信息

application.properties文件内容：

spring.datasource.platform=mysql

db.num=1

db.url.0=jdbc:mysql://127.0.0.1:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
db.user.0=root
db.password.0=123

4、配置完之后将Nacos复制三份

分别配置上各自的端口号：

nacos1:
server.port=8845

nacos2:
server.port=8846

nacos3:
server.port=8847

然后启动Nacos[运行Startup.cmd]

5、配置Nginx，并配置反向代理

解压Nginx, 修改conf/nginx.conf文件

upstream nacos-cluster {
    server 127.0.0.1:8845;
    server 127.0.0.1:8846;
    server 127.0.0.1:8847;
}

server {
    listen       80;
    server_name  localhost;

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

而后在浏览器访问：http://localhost/nacos 

最后在服务的启动配置文件中【application.yml】或者【bootstrap.yml】：

spring:
  cloud:
    nacos:
      server-addr: localhost:80 # Nacos地址