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springcloud整合sentinel，限流策略持久化到nacos，详细配置案例

article 2024/11/6 20:31:44

1.组件下载和启动

（1）sentinel-dashboard下载

（2）nacos下载

（3）jmeter下载

（4）redis下载（与流控关系不大，与项目启动有关）

2.本微服务项目启动三个子应用：gateway（网关）、auth（鉴权）和system（业务）；

（1）gateway服务（流控的统一入口）

①pom.xml

②bootstrap.yml配置

③ruoyi-gateway-dev.yml

④启动类RuoYiGatewayApplication加入配置，否则在sentinel-dashboard主界面左侧无“API管理”菜单

⑤新增流控规则实时查询接口类“FlowRulesController”

⑥在sentinel-dashboard界面查看或者配置流控信息

⑦jmeter测试限流

⑧共享配置 application-dev.yml

（2）auth服务（鉴权）

①pom.xml

②bootstrap.yml配置

③ruoyi-auth-dev.yml

④启动类RuoYiAuthApplication无需处理

⑤登录系统后，sentinel-dashboard监控如下

（3）system服务（业务）

①pom.xml

②bootstrap.yml配置

③ruoyi-system-dev.yml

④启动类RuoYiSystemApplication显示API分组

⑤前端请求业务接口后，sentinel控制台显示

3.总结

1.组件下载和启动

（1）sentinel-dashboard下载

https://github.com/alibaba/Sentinel/releaseshttps://github.com/alibaba/Sentinel/releases

本案例使用sentinel-dashboard-1.8.4版本，

启动sentinel-dashboard服务，

java -Dserver.port=8718 -Dcsp.sentinel.dashboard.server=localhost:8718 -Dproject.name=sentinel-dashboard -Dcsp.sentinel.api.port=8719 -jar D:\sentinel-dashboard-1.8.4.jar

（2）nacos下载

发布历史 | Nacos 官网https://nacos.io/download/release-history/

本案例使用nacos-server-2.3.2版本，比较新的版本已经取消了登录功能，此处免密登录。

双击“nacos\bin\startup.cmd”，启动nacos服务，

（3）jmeter下载

Apache JMeter - Download Apache JMeterhttps://jmeter.apache.org/download_jmeter.cgi

本例使用apache-jmeter-5.5，

修改：apache-jmeter-5.5\bin\jmeter.properties，解决返回值中文乱码问题。

（4）redis下载（与流控关系不大，与项目启动有关）

https://github.com/MicrosoftArchive/redis/releaseshttps://github.com/MicrosoftArchive/redis/releases本案例使用Redis-x64-3.2.100

2.本微服务项目启动三个子应用：gateway（网关）、auth（鉴权）和system（业务）；

最顶级pom.xml配置如下，主要是依赖包的版本控制；

<?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.ruoyi</groupId>
    <artifactId>ruoyi</artifactId>
    <version>3.6.4</version>

    <name>ruoyi</name>
    <url>http://www.ruoyi.vip</url>
    <description>若依微服务系统</description>

    <properties>
        <ruoyi.version>3.6.4</ruoyi.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>17</java.version>
        <spring-boot.version>3.3.3</spring-boot.version>
        <spring-cloud.version>2023.0.3</spring-cloud.version>
        <spring-cloud-alibaba.version>2023.0.1.2</spring-cloud-alibaba.version>
        <spring-boot-admin.version>3.3.3</spring-boot-admin.version>
        <mybatis-spring.version>3.0.3</mybatis-spring.version>
        <swagger.fox.version>3.0.0</swagger.fox.version>
        <swagger.core.version>1.6.2</swagger.core.version>
        <kaptcha.version>2.3.3</kaptcha.version>
        <pagehelper.boot.version>2.1.0</pagehelper.boot.version>
        <druid.version>1.2.23</druid.version>
        <dynamic-ds.version>4.3.1</dynamic-ds.version>
        <commons.io.version>2.13.0</commons.io.version>
        <velocity.version>2.3</velocity.version>
        <fastjson.version>2.0.43</fastjson.version>
        <jjwt.version>0.9.1</jjwt.version>
        <minio.version>8.2.2</minio.version>
        <poi.version>4.1.2</poi.version>
        <springdoc.version>2.5.0</springdoc.version>
        <transmittable-thread-local.version>2.14.4</transmittable-thread-local.version>
    </properties>

    <!-- 依赖声明 -->
    <dependencyManagement>
        <dependencies>

            <!-- SpringCloud 微服务 -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- SpringCloud Alibaba 微服务 -->
            <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>

            <!-- SpringBoot 依赖配置 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- Springdoc webmvc 依赖配置 -->
            <dependency>
                <groupId>org.springdoc</groupId>
                <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
                <version>${springdoc.version}</version>
            </dependency>

            <!-- 验证码 -->
            <dependency>
                <groupId>pro.fessional</groupId>
                <artifactId>kaptcha</artifactId>
                <version>${kaptcha.version}</version>
            </dependency>

            <!-- pagehelper 分页插件 -->
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-starter</artifactId>
                <version>${pagehelper.boot.version}</version>
                <exclusions>
                    <exclusion>
                        <artifactId>mybatis-spring</artifactId>
                        <groupId>org.mybatis</groupId>
                    </exclusion>
                </exclusions>
            </dependency>

            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>${mybatis-spring.version}</version>
            </dependency>

            <!-- io常用工具类 -->
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons.io.version}</version>
            </dependency>

            <!-- excel工具 -->
            <dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi-ooxml</artifactId>
                <version>${poi.version}</version>
            </dependency>

            <!-- 代码生成使用模板 -->
            <dependency>
                <groupId>org.apache.velocity</groupId>
                <artifactId>velocity-engine-core</artifactId>
                <version>${velocity.version}</version>
            </dependency>

            <!-- JSON 解析器和生成器 -->
            <dependency>
                <groupId>com.alibaba.fastjson2</groupId>
                <artifactId>fastjson2</artifactId>
                <version>${fastjson.version}</version>
            </dependency>

            <!-- JWT -->
            <dependency>
                <groupId>io.jsonwebtoken</groupId>
                <artifactId>jjwt</artifactId>
                <version>${jjwt.version}</version>
            </dependency>

            <!-- 线程传递值 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>transmittable-thread-local</artifactId>
                <version>${transmittable-thread-local.version}</version>
            </dependency>

            <!-- 核心模块 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-core</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 接口模块 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-swagger</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 安全模块 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-security</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 数据脱敏 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-sensitive</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 权限范围 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-datascope</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 多数据源 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-datasource</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 分布式事务 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-seata</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 日志记录 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-log</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 缓存服务 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-common-redis</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

            <!-- 系统接口 -->
            <dependency>
                <groupId>com.ruoyi</groupId>
                <artifactId>ruoyi-api-system</artifactId>
                <version>${ruoyi.version}</version>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <modules>
        <module>ruoyi-auth</module>
        <module>ruoyi-gateway</module>
        <module>ruoyi-visual</module>
        <module>ruoyi-modules</module>
        <module>ruoyi-api</module>
        <module>ruoyi-common</module>
    </modules>
    <packaging>pom</packaging>

    <dependencies>
        <!-- bootstrap 启动器 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bootstrap</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.11.0</version>
                <configuration>
                    <parameters>true</parameters>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
        </plugins>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>${spring-boot.version}</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

    <repositories>
        <repository>
            <id>public</id>
            <name>aliyun nexus</name>
            <url>https://maven.aliyun.com/repository/public</url>
            <releases>
                <enabled>true</enabled>
            </releases>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>public</id>
            <name>aliyun nexus</name>
            <url>https://maven.aliyun.com/repository/public</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

</project>

（1）gateway服务（流控的统一入口）

①pom.xml

<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>com.ruoyi</groupId>
        <artifactId>ruoyi</artifactId>
        <version>3.6.4</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>ruoyi-gateway</artifactId>

    <description>
        ruoyi-gateway网关模块
    </description>

    <dependencies>

        <!-- SpringCloud Gateway -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>

        <!-- SpringCloud Alibaba Nacos -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <!-- SpringCloud Alibaba Nacos Config -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>

        <!-- SpringCloud Alibaba Sentinel -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>

        <!-- SpringCloud Alibaba Sentinel Gateway -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-sentinel-gateway</artifactId>
        </dependency>

        <!-- Sentinel Datasource Nacos -->
        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-datasource-nacos</artifactId>
        </dependency>

        <!-- SpringBoot Actuator -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        
        <!-- SpringCloud Loadbalancer -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-loadbalancer</artifactId>
        </dependency>

        <!--验证码 -->
        <dependency>
            <groupId>pro.fessional</groupId>
            <artifactId>kaptcha</artifactId>
        </dependency>

        <!-- RuoYi Common Redis-->
        <dependency>
            <groupId>com.ruoyi</groupId>
            <artifactId>ruoyi-common-redis</artifactId>
        </dependency>

        <!-- Springdoc -->
        <dependency>
            <groupId>org.springdoc</groupId>
            <artifactId>springdoc-openapi-starter-webflux-ui</artifactId>
            <version>${springdoc.version}</version>
        </dependency>

    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

②bootstrap.yml配置

# Tomcat
server:
  port: 8080

# Spring
spring: 
  application:
    # 应用名称
    name: ruoyi-gateway
  profiles:
    # 环境配置
    active: dev
  cloud:
    nacos:
      discovery:
        # 服务注册地址
        server-addr: 127.0.0.1:8848
      config:
        # 配置中心地址
        server-addr: 127.0.0.1:8848
        # 配置文件格式
        file-extension: yml
        # 共享配置
        shared-configs:
          - application-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}
    sentinel:
      # 取消控制台懒加载
      eager: true
      transport:
        # 控制台地址
        dashboard: 127.0.0.1:8718
      # nacos配置持久化
      datasource:
        # 流控规则
        ds1:
          nacos:
            server-addr: 127.0.0.1:8848
            dataId: sentinel-ruoyi-gateway
            groupId: DEFAULT_GROUP
            data-type: json
            rule-type: gw-flow
        # 接口限流规则
        ds2:
          nacos:
            server-addr: 127.0.0.1:8848
            dataId: api-group
            groupId: DEFAULT_GROUP
            data-type: json
            rule-type: gw-api-group

③ruoyi-gateway-dev.yml

spring:
  data:
    redis:
      host: localhost
      port: 6379
      password: 
  cloud:
    gateway:
      discovery:
        locator:
          lowerCaseServiceId: true
          enabled: true
      routes:
        # 认证中心
        - id: ruoyi-auth
          uri: lb://ruoyi-auth
          predicates:
            - Path=/auth/**
          filters:
            # 验证码处理
            - CacheRequestFilter
            - ValidateCodeFilter
            - StripPrefix=1
        # 代码生成
        - id: ruoyi-gen
          uri: lb://ruoyi-gen
          predicates:
            - Path=/code/**
          filters:
            - StripPrefix=1
        # 定时任务
        - id: ruoyi-job
          uri: lb://ruoyi-job
          predicates:
            - Path=/schedule/**
          filters:
            - StripPrefix=1
        # 系统模块
        - id: ruoyi-system
          uri: lb://ruoyi-system
          predicates:
            - Path=/system/**
          filters:
            - StripPrefix=1
        # 文件服务
        - id: ruoyi-file
          uri: lb://ruoyi-file
          predicates:
            - Path=/file/**
          filters:
            - StripPrefix=1
# 安全配置
security:
  # 验证码
  captcha:
    enabled: true
    type: math
  # 防止XSS攻击
  xss:
    enabled: true
    excludeUrls:
      - /system/notice

  # 不校验白名单
  ignore:
    whites:
      - /auth/logout
      - /auth/login
      - /auth/register
      - /*/v2/api-docs
      - /*/v3/api-docs
      - /csrf
      - /system/api
      - /system/rule

# springdoc配置
springdoc:
  webjars:
    # 访问前缀
    prefix:

④启动类RuoYiGatewayApplication加入配置，否则在sentinel-dashboard主界面左侧无“API管理”菜单

// sentinel显示API分组菜单
System.setProperty("csp.sentinel.app.type", "1");

⑤新增流控规则实时查询接口类“FlowRulesController”

用于实时查询通过sentinel-dashboard界面配置后的API分组信息和流控信息，然后可以回填到nacos对应的配置文件里，即可实现流控规则的持久化。

package com.ruoyi.gateway.controller;

import com.alibaba.csp.sentinel.adapter.gateway.common.api.ApiDefinition;
import com.alibaba.csp.sentinel.adapter.gateway.common.api.GatewayApiDefinitionManager;
import com.alibaba.csp.sentinel.adapter.gateway.common.rule.GatewayFlowRule;
import com.alibaba.csp.sentinel.adapter.gateway.common.rule.GatewayRuleManager;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Set;

@RestController
public class FlowRulesController {

    @GetMapping("/rule")
    public Set<GatewayFlowRule> getGatewayFlowRules(){
        return GatewayRuleManager.getRules() ;
    }

    @GetMapping("/api")
    public Set<ApiDefinition> getApiGroupRules(){
        return GatewayApiDefinitionManager.getApiDefinitions();
    }
}

当在sentinel-dashboard界面配置好分组定义和限流策略后，将上面接口查到的实时限流内容，保存到nacos对应的json配置文件里，实现持久化，后面服务重启也不会丢失了，sentinel-dashboard永远显示的是最新的限流配置，包括nacos数据源里的配置和sentinel-dashboard界面的配置之和。

⑥在sentinel-dashboard界面查看或者配置流控信息

⑦jmeter测试限流

⑧共享配置 application-dev.yml

spring:
  autoconfigure:
    exclude: com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure
# feign 配置
feign:
  sentinel:
    enabled: true
  okhttp:
    enabled: true
  httpclient:
    enabled: false
  client:
    config:
      default:
        connectTimeout: 10000
        readTimeout: 10000
  compression:
    request:
      enabled: true
      min-request-size: 8192
    response:
      enabled: true

# 暴露监控端点
management:
  endpoints:
    web:
      exposure:
        include: '*'

（2）auth服务（鉴权）

①pom.xml

<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>com.ruoyi</groupId>
        <artifactId>ruoyi</artifactId>
        <version>3.6.4</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    
    <artifactId>ruoyi-auth</artifactId>
	
    <description>
        ruoyi-auth认证授权中心
    </description>
    
    <dependencies>
        
        <!-- SpringCloud Alibaba Nacos -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        
        <!-- SpringCloud Alibaba Nacos Config -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        
        <!-- SpringCloud Alibaba Sentinel -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>
		
        <!-- SpringBoot Web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        
        <!-- SpringBoot Actuator -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
		
        <!-- RuoYi Common Security-->
        <dependency>
            <groupId>com.ruoyi</groupId>
            <artifactId>ruoyi-common-security</artifactId>
        </dependency>
        
    </dependencies>
	
    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
   
</project>

②bootstrap.yml配置

# Tomcat
server: 
  port: 9200

# Spring
spring: 
  application:
    # 应用名称
    name: ruoyi-auth
  profiles:
    # 环境配置
    active: dev
  cloud:
    nacos:
      discovery:
        # 服务注册地址
        server-addr: 127.0.0.1:8848
      config:
        # 配置中心地址
        server-addr: 127.0.0.1:8848
        # 配置文件格式
        file-extension: yml
        # 共享配置
        shared-configs:
          - application-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}
    sentinel:
      # 取消控制台懒加载
      eager: true
      transport:
        # 控制台地址
        dashboard: 127.0.0.1:8718

③ruoyi-auth-dev.yml

spring:
  data:
    redis:
      host: localhost
      port: 6379
      password:

④启动类RuoYiAuthApplication无需处理

⑤登录系统后，sentinel-dashboard监控如下

簇点链路的访问路径可以作为gateway服务配置限流API分组路径的参考，auth服务本身不做流控。

（3）system服务（业务）

①pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://maven.apache.org/POM/4.0.0"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>com.ruoyi</groupId>
        <artifactId>ruoyi-modules</artifactId>
        <version>3.6.4</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
	
    <artifactId>ruoyi-modules-system</artifactId>

    <description>
        ruoyi-modules-system系统模块
    </description>
	
    <dependencies>
    	
    	<!-- SpringCloud Alibaba Nacos -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        
        <!-- SpringCloud Alibaba Nacos Config -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        
    	<!-- SpringCloud Alibaba Sentinel -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>
        
    	<!-- SpringBoot Actuator -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        
        <!-- Mysql Connector -->
        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
        </dependency>
        
        <!-- RuoYi Common DataSource -->
        <dependency>
            <groupId>com.ruoyi</groupId>
            <artifactId>ruoyi-common-datasource</artifactId>
        </dependency>
        
        <!-- RuoYi Common DataScope -->
        <dependency>
            <groupId>com.ruoyi</groupId>
            <artifactId>ruoyi-common-datascope</artifactId>
        </dependency>
        
        <!-- RuoYi Common Log -->
        <dependency>
            <groupId>com.ruoyi</groupId>
            <artifactId>ruoyi-common-log</artifactId>
        </dependency>
        
        <!-- RuoYi Common Swagger -->
        <dependency>
            <groupId>com.ruoyi</groupId>
            <artifactId>ruoyi-common-swagger</artifactId>
        </dependency>
        
    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
   
</project>

②bootstrap.yml配置

# Tomcat
server:
  port: 9201

# Spring
spring: 
  application:
    # 应用名称
    name: ruoyi-system
  profiles:
    # 环境配置
    active: dev
  cloud:
    nacos:
      discovery:
        # 服务注册地址
        server-addr: 127.0.0.1:8848
      config:
        # 配置中心地址
        server-addr: 127.0.0.1:8848
        # 配置文件格式
        file-extension: yml
        # 共享配置
        shared-configs:
          - application-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}
    sentinel:
      # 取消控制台懒加载
      eager: true
      transport:
        # 控制台地址
        dashboard: 127.0.0.1:8718

③ruoyi-system-dev.yml

# spring配置
spring:
  data:
    redis:
      host: localhost
      port: 6379
      password: 
  datasource:
    druid:
      stat-view-servlet:
        enabled: true
        loginUsername: ruoyi
        loginPassword: 123456
    dynamic:
      druid:
        initial-size: 5
        min-idle: 5
        maxActive: 20
        maxWait: 60000
        connectTimeout: 30000
        socketTimeout: 60000
        timeBetweenEvictionRunsMillis: 60000
        minEvictableIdleTimeMillis: 300000
        validationQuery: SELECT 1 FROM DUAL
        testWhileIdle: true
        testOnBorrow: false
        testOnReturn: false
        poolPreparedStatements: true
        maxPoolPreparedStatementPerConnectionSize: 20
        filters: stat,slf4j
        connectionProperties: druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000
      datasource:
          # 主库数据源
          master:
            driver-class-name: com.mysql.cj.jdbc.Driver
            url: jdbc:mysql://localhost:3306/ry-cloud?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8
            username: root
            password: root
          # 从库数据源
          # slave:
            # username: 
            # password: 
            # url: 
            # driver-class-name: 

# mybatis配置
mybatis:
    # 搜索指定包别名
    typeAliasesPackage: com.ruoyi.system
    # 配置mapper的扫描，找到所有的mapper.xml映射文件
    mapperLocations: classpath:mapper/**/*.xml

# springdoc配置
springdoc:
  gatewayUrl: http://localhost:8080/${spring.application.name}
  api-docs:
    # 是否开启接口文档
    enabled: true
  info:
    # 标题
    title: '系统模块接口文档'
    # 描述
    description: '系统模块接口描述'
    # 作者信息
    contact:
      name: RuoYi
      url: https://ruoyi.vip

④启动类RuoYiSystemApplication显示API分组

 // sentinel显示API分组菜单
 System.setProperty("csp.sentinel.app.type", "1");

⑤前端请求业务接口后，sentinel控制台显示

请求链路可以作为gate限流时，API管理分组的路径参考，业务服务本身不作限流处理。

3.总结

springcloud项目的限流主要分为两种粒度，一是路由服务级别，二是API接口级别；统一通过gateway服务配置限流策略，其他需要限流的服务，只需要保证将自身的服务集成到sentinel和sentinel-dashboard即可，让sentinel控制台感知到API接口被访问即可。

gateway服务的pom.xml必须有依赖：

<!-- SpringCloud Alibaba Sentinel -->
<dependency>
	<groupId>com.alibaba.cloud</groupId>
	<artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
</dependency>

<!-- SpringCloud Alibaba Sentinel Gateway -->
<dependency>
	<groupId>com.alibaba.cloud</groupId>
	<artifactId>spring-cloud-alibaba-sentinel-gateway</artifactId>
</dependency>

<!-- Sentinel Datasource Nacos -->
<dependency>
	<groupId>com.alibaba.csp</groupId>
	<artifactId>sentinel-datasource-nacos</artifactId>
</dependency>

其他业务服务限流只需下面依赖：

<!-- SpringCloud Alibaba Sentinel -->
<dependency>
	<groupId>com.alibaba.cloud</groupId>
	<artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
</dependency>

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