Sentinel集成

Edited on In ,

这里使用SpringCloud。

依赖

父类依赖

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<!-- <spring-cloud.version>2021.0.4</spring-cloud.version> -->
<!-- <spring-cloud-alibaba.version>2021.0.4.0</spring-cloud-alibaba.version> -->
<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>
    </dependencies>
</dependencyManagement>

基础依赖

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

sentinel 使用 nacos 做配置中心

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

sentinel 与 gateway 依赖

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

配置

配置文件配置

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# Spring
spring:
  cloud:
  # 当前配置可以放在 nacos 中
    gateway:
      discovery:
        locator:
          lowerCaseServiceId: true
          enabled: true
      routes:
        # 认证中心
        - id: auth
          uri: lb://auth
          predicates:
            - Path=/auth/**
          filters:
            - StripPrefix=1
      nacos:
        discovery:
          # nacos 服务注册地址
          server-addr: 127.0.0.1:8848
        config:
          # nacos 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-dev.${spring.cloud.nacos.config.file-extension}
    sentinel:
      # 取消控制台懒加载
      eager: true
      transport:
        # 接收限流规则
        port: 8719
        # 控制台地址
        dashboard: 127.0.0.1:48080
      # nacos配置持久化
      datasource:
        # 动态数据源
        ds1:
          # NacosDataSourceProperties
          nacos:
            server-addr: 127.0.0.1:8848
            dataId: sentinel-gateway
            groupId: DEFAULT_GROUP
            data-type: json
            rule-type: flow

规则的种类(ruleType):

  • flow: 流量控制
  • degrade: 熔断降级
  • system：系统保护
  • authority：访问控制
  • param-flow：热点

官方规则种类配置说明

flow的配置

nacos配置中心就可以添加网关流量控制规则：

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[
    {
        "resource": "auth",
        "count": 500,
        "grade": 1,
        "limitApp": "default",
        "strategy": 0,
        "controlBehavior": 0
    }
]

网关限流规则：GatewayFlowRule

本文地址： https://github.com/maxzhao-it/blog/post/8a4e05d0/