目录1.组件下载和启动1sentinel-dashboard下载2nacos下载3jmeter下载4redis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1gateway服务流控的统一入口①pom.xml②bootstrap.yml配置③ruoyi-gateway-dev.yml④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.yml2auth服务鉴权①pom.xml②bootstrap.yml配置③ruoyi-auth-dev.yml④启动类RuoYiAuthApplication无需处理⑤登录系统后sentinel-dashboard监控如下3system服务业务①pom.xml②bootstrap.yml配置③ruoyi-system-dev.yml④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1sentinel-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.port8718 -Dcsp.sentinel.dashboard.serverlocalhost:8718 -Dproject.namesentinel-dashboard -Dcsp.sentinel.api.port8719 -jar D:\sentinel-dashboard-1.8.4.jar2nacos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3jmeter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。4redis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-x64-3.2.1002.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 version1.0 encodingUTF-8? project xmlnshttp://maven.apache.org/POM/4.0.0 xmlns:xsihttp://www.w3.org/2001/XMLSchema-instance xsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd modelVersion4.0.0/modelVersion groupIdcom.ruoyi/groupId artifactIdruoyi/artifactId version3.6.4/version nameruoyi/name urlhttp://www.ruoyi.vip/url description若依微服务系统/description properties ruoyi.version3.6.4/ruoyi.version project.build.sourceEncodingUTF-8/project.build.sourceEncoding project.reporting.outputEncodingUTF-8/project.reporting.outputEncoding java.version17/java.version spring-boot.version3.3.3/spring-boot.version spring-cloud.version2023.0.3/spring-cloud.version spring-cloud-alibaba.version2023.0.1.2/spring-cloud-alibaba.version spring-boot-admin.version3.3.3/spring-boot-admin.version mybatis-spring.version3.0.3/mybatis-spring.version swagger.fox.version3.0.0/swagger.fox.version swagger.core.version1.6.2/swagger.core.version kaptcha.version2.3.3/kaptcha.version pagehelper.boot.version2.1.0/pagehelper.boot.version druid.version1.2.23/druid.version dynamic-ds.version4.3.1/dynamic-ds.version commons.io.version2.13.0/commons.io.version velocity.version2.3/velocity.version fastjson.version2.0.43/fastjson.version jjwt.version0.9.1/jjwt.version minio.version8.2.2/minio.version poi.version4.1.2/poi.version springdoc.version2.5.0/springdoc.version transmittable-thread-local.version2.14.4/transmittable-thread-local.version /properties !-- 依赖声明 -- dependencyManagement dependencies !-- SpringCloud 微服务 -- dependency groupIdorg.springframework.cloud/groupId artifactIdspring-cloud-dependencies/artifactId version${spring-cloud.version}/version typepom/type scopeimport/scope /dependency !-- SpringCloud Alibaba 微服务 -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-alibaba-dependencies/artifactId version${spring-cloud-alibaba.version}/version typepom/type scopeimport/scope /dependency !-- SpringBoot 依赖配置 -- dependency groupIdorg.springframework.boot/groupId artifactIdspring-boot-dependencies/artifactId version${spring-boot.version}/version typepom/type scopeimport/scope /dependency !-- Springdoc webmvc 依赖配置 -- dependency groupIdorg.springdoc/groupId artifactIdspringdoc-openapi-starter-webmvc-ui/artifactId version${springdoc.version}/version /dependency !-- 验证码 -- dependency groupIdpro.fessional/groupId artifactIdkaptcha/artifactId version${kaptcha.version}/version /dependency !-- pagehelper 分页插件 -- dependency groupIdcom.github.pagehelper/groupId artifactIdpagehelper-spring-boot-starter/artifactId version${pagehelper.boot.version}/version exclusions exclusion artifactIdmybatis-spring/artifactId groupIdorg.mybatis/groupId /exclusion /exclusions /dependency dependency groupIdorg.mybatis/groupId artifactIdmybatis-spring/artifactId version${mybatis-spring.version}/version /dependency !-- io常用工具类 -- dependency groupIdcommons-io/groupId artifactIdcommons-io/artifactId version${commons.io.version}/version /dependency !-- excel工具 -- dependency groupIdorg.apache.poi/groupId artifactIdpoi-ooxml/artifactId version${poi.version}/version /dependency !-- 代码生成使用模板 -- dependency groupIdorg.apache.velocity/groupId artifactIdvelocity-engine-core/artifactId version${velocity.version}/version /dependency !-- JSON 解析器和生成器 -- dependency groupIdcom.alibaba.fastjson2/groupId artifactIdfastjson2/artifactId version${fastjson.version}/version /dependency !-- JWT -- dependency groupIdio.jsonwebtoken/groupId artifactIdjjwt/artifactId version${jjwt.version}/version /dependency !-- 线程传递值 -- dependency groupIdcom.alibaba/groupId artifactIdtransmittable-thread-local/artifactId version${transmittable-thread-local.version}/version /dependency !-- 核心模块 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-core/artifactId version${ruoyi.version}/version /dependency !-- 接口模块 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-swagger/artifactId version${ruoyi.version}/version /dependency !-- 安全模块 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-security/artifactId version${ruoyi.version}/version /dependency !-- 数据脱敏 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-sensitive/artifactId version${ruoyi.version}/version /dependency !-- 权限范围 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-datascope/artifactId version${ruoyi.version}/version /dependency !-- 多数据源 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-datasource/artifactId version${ruoyi.version}/version /dependency !-- 分布式事务 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-seata/artifactId version${ruoyi.version}/version /dependency !-- 日志记录 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-log/artifactId version${ruoyi.version}/version /dependency !-- 缓存服务 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-redis/artifactId version${ruoyi.version}/version /dependency !-- 系统接口 -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-api-system/artifactId version${ruoyi.version}/version /dependency /dependencies /dependencyManagement modules moduleruoyi-auth/module moduleruoyi-gateway/module moduleruoyi-visual/module moduleruoyi-modules/module moduleruoyi-api/module moduleruoyi-common/module /modules packagingpom/packaging dependencies !-- bootstrap 启动器 -- dependency groupIdorg.springframework.cloud/groupId artifactIdspring-cloud-starter-bootstrap/artifactId /dependency /dependencies build plugins plugin groupIdorg.apache.maven.plugins/groupId artifactIdmaven-compiler-plugin/artifactId version3.11.0/version configuration parameterstrue/parameters source${java.version}/source target${java.version}/target encoding${project.build.sourceEncoding}/encoding /configuration /plugin /plugins pluginManagement plugins plugin groupIdorg.springframework.boot/groupId artifactIdspring-boot-maven-plugin/artifactId version${spring-boot.version}/version executions execution goals goalrepackage/goal /goals /execution /executions /plugin /plugins /pluginManagement /build repositories repository idpublic/id namealiyun nexus/name urlhttps://maven.aliyun.com/repository/public/url releases enabledtrue/enabled /releases /repository /repositories pluginRepositories pluginRepository idpublic/id namealiyun nexus/name urlhttps://maven.aliyun.com/repository/public/url releases enabledtrue/enabled /releases snapshots enabledfalse/enabled /snapshots /pluginRepository /pluginRepositories /project1gateway服务流控的统一入口①pom.xmlproject xmlnshttp://maven.apache.org/POM/4.0.0 xmlns:xsihttp://www.w3.org/2001/XMLSchema-instance xsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd parent groupIdcom.ruoyi/groupId artifactIdruoyi/artifactId version3.6.4/version /parent modelVersion4.0.0/modelVersion artifactIdruoyi-gateway/artifactId description ruoyi-gateway网关模块 /description dependencies !-- SpringCloud Gateway -- dependency groupIdorg.springframework.cloud/groupId artifactIdspring-cloud-starter-gateway/artifactId /dependency !-- SpringCloud Alibaba Nacos -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-nacos-discovery/artifactId /dependency !-- SpringCloud Alibaba Nacos Config -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-nacos-config/artifactId /dependency !-- SpringCloud Alibaba Sentinel -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-sentinel/artifactId /dependency !-- SpringCloud Alibaba Sentinel Gateway -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-alibaba-sentinel-gateway/artifactId /dependency !-- Sentinel Datasource Nacos -- dependency groupIdcom.alibaba.csp/groupId artifactIdsentinel-datasource-nacos/artifactId /dependency !-- SpringBoot Actuator -- dependency groupIdorg.springframework.boot/groupId artifactIdspring-boot-starter-actuator/artifactId /dependency !-- SpringCloud Loadbalancer -- dependency groupIdorg.springframework.cloud/groupId artifactIdspring-cloud-loadbalancer/artifactId /dependency !--验证码 -- dependency groupIdpro.fessional/groupId artifactIdkaptcha/artifactId /dependency !-- RuoYi Common Redis-- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-redis/artifactId /dependency !-- Springdoc -- dependency groupIdorg.springdoc/groupId artifactIdspringdoc-openapi-starter-webflux-ui/artifactId version${springdoc.version}/version /dependency /dependencies build finalName${project.artifactId}/finalName plugins plugin groupIdorg.springframework.boot/groupId artifactIdspring-boot-maven-plugin/artifactId executions execution goals goalrepackage/goal /goals /execution /executions /plugin /plugins /build /project②bootstrap.yml配置# Tomcat server: port: 8080 # Spring spring: application: # 应用名称 name: ruoyi-gateway profiles: # 环境配置 active: dev cloud: nacos: discovery: # 服务注册地址 server-addr: 127.0.0.1:8848 config: # 配置中心地址 server-addr: 127.0.0.1:8848 # 配置文件格式 file-extension: yml # 共享配置 shared-configs: - application-${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 >③ruoyi-gateway-dev.ymlspring: 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 - StripPrefix1 # 代码生成 - id: ruoyi-gen uri: lb://ruoyi-gen predicates: - Path/code/** filters: - StripPrefix1 # 定时任务 - id: ruoyi-job uri: lb://ruoyi-job predicates: - Path/schedule/** filters: - StripPrefix1 # 系统模块 - id: ruoyi-system uri: lb://ruoyi-system predicates: - Path/system/** filters: - StripPrefix1 # 文件服务 - id: ruoyi-file uri: lb://ruoyi-file predicates: - Path/file/** filters: - StripPrefix1 # 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 SetGatewayFlowRule getGatewayFlowRules(){ return GatewayRuleManager.getRules() ; } GetMapping(/api) public SetApiDefinition 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.ymlspring: 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: *2auth服务鉴权①pom.xmlproject xmlnshttp://maven.apache.org/POM/4.0.0 xmlns:xsihttp://www.w3.org/2001/XMLSchema-instance xsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd parent groupIdcom.ruoyi/groupId artifactIdruoyi/artifactId version3.6.4/version /parent modelVersion4.0.0/modelVersion artifactIdruoyi-auth/artifactId description ruoyi-auth认证授权中心 /description dependencies !-- SpringCloud Alibaba Nacos -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-nacos-discovery/artifactId /dependency !-- SpringCloud Alibaba Nacos Config -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-nacos-config/artifactId /dependency !-- SpringCloud Alibaba Sentinel -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-sentinel/artifactId /dependency !-- SpringBoot Web -- dependency groupIdorg.springframework.boot/groupId artifactIdspring-boot-starter-web/artifactId /dependency !-- SpringBoot Actuator -- dependency groupIdorg.springframework.boot/groupId artifactIdspring-boot-starter-actuator/artifactId /dependency !-- RuoYi Common Security-- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-security/artifactId /dependency /dependencies build finalName${project.artifactId}/finalName plugins plugin groupIdorg.springframework.boot/groupId artifactIdspring-boot-maven-plugin/artifactId executions execution goals goalrepackage/goal /goals /execution /executions /plugin /plugins /build /project②bootstrap.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: 127.0.0.1:8718③ruoyi-auth-dev.ymlspring: 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。3system服务业务①pom.xml?xml version1.0 encodingUTF-8? project xmlns:xsihttp://www.w3.org/2001/XMLSchema-instance xmlnshttp://maven.apache.org/POM/4.0.0 xsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd parent groupIdcom.ruoyi/groupId artifactIdruoyi-modules/artifactId version3.6.4/version /parent modelVersion4.0.0/modelVersion artifactIdruoyi-modules-system/artifactId description ruoyi-modules-system系统模块 /description dependencies !-- SpringCloud Alibaba Nacos -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-nacos-discovery/artifactId /dependency !-- SpringCloud Alibaba Nacos Config -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-nacos-config/artifactId /dependency !-- SpringCloud Alibaba Sentinel -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-sentinel/artifactId /dependency !-- SpringBoot Actuator -- dependency groupIdorg.springframework.boot/groupId artifactIdspring-boot-starter-actuator/artifactId /dependency !-- Mysql Connector -- dependency groupIdcom.mysql/groupId artifactIdmysql-connector-j/artifactId /dependency !-- RuoYi Common DataSource -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-datasource/artifactId /dependency !-- RuoYi Common DataScope -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-datascope/artifactId /dependency !-- RuoYi Common Log -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-log/artifactId /dependency !-- RuoYi Common Swagger -- dependency groupIdcom.ruoyi/groupId artifactIdruoyi-common-swagger/artifactId /dependency /dependencies build finalName${project.artifactId}/finalName plugins plugin groupIdorg.springframework.boot/groupId artifactIdspring-boot-maven-plugin/artifactId executions execution goals goalrepackage/goal /goals /execution /executions /plugin /plugins /build /project②bootstrap.yml配置# Tomcat server: port: 9201 # Spring spring: application: # 应用名称 name: ruoyi-system profiles: # 环境配置 active: dev cloud: nacos: discovery: # 服务注册地址 server-addr: 127.0.0.1:8848 config: # 配置中心地址 server-addr: 127.0.0.1:8848 # 配置文件格式 file-extension: yml # 共享配置 shared-configs: - application-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension} sentinel: # 取消控制台懒加载 eager: true transport: # 控制台地址 dashboard: 127.0.0.1:8718③ruoyi-system-dev.yml# spring配置 spring: data: redis: host: localhost port: 6379 password: datasource: druid: stat-view-servlet: enabled: true loginUsername: ruoyi loginPassword: 123456 dynamic: druid: initial-size: 5 min-idle: 5 maxActive: 20 maxWait: 60000 connectTimeout: 30000 socketTimeout: 60000 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 20 filters: stat,slf4j connectionProperties: druid.stat.mergeSql\true;druid.stat.slowSqlMillis\5000 datasource: # 主库数据源 master: driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://localhost:3306/ry-cloud?useUnicodetruecharacterEncodingutf8zeroDateTimeBehaviorconvertToNulluseSSLtrueserverTimezoneGMT%2B8 username: root password: root # 从库数据源 # slave: # username: # password: # url: # driver-class-name: # mybatis配置 mybatis: # 搜索指定包别名 typeAliasesPackage: com.ruoyi.system # 配置mapper的扫描找到所有的mapper.xml映射文件 mapperLocations: classpath:mapper/**/*.xml # springdoc配置 springdoc: gatewayUrl: http://localhost:8080/${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.vip④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 groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-sentinel/artifactId /dependency !-- SpringCloud Alibaba Sentinel Gateway -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-alibaba-sentinel-gateway/artifactId /dependency !-- Sentinel Datasource Nacos -- dependency groupIdcom.alibaba.csp/groupId artifactIdsentinel-datasource-nacos/artifactId /dependency其他业务服务限流只需下面依赖!-- SpringCloud Alibaba Sentinel -- dependency groupIdcom.alibaba.cloud/groupId artifactIdspring-cloud-starter-alibaba-sentinel/artifactId /dependency