sentinel流量控制

1.打开sentinel

2.pom

  <!--SpringCloud ailibaba nacos -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!--SpringCloud ailibaba sentinel-datasource-nacos 后续做持久化用到-->
        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-datasource-nacos</artifactId>
        </dependency>
        <!--SpringCloud ailibaba sentinel -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>

3.yml

server:
  port: 8401

spring:
  application:
    name: cloudalibaba-sentinel-service
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848 #Nacos服务注册中心地址
    sentinel:
      transport:
        dashboard: localhost:8080 #配置Sentinel dashboard地址 让8080来监视我
        port: 8719
#      datasource:
#        ds1:
#          nacos:
#            server-addr: localhost:8848
#            dataId: cloudalibaba-sentinel-service
#            groupId: DEFAULT_GROUP
#            data-type: json
#            rule-type: flow

management:
  endpoints:
    web:
      exposure:
        include: '*'

#feign:
#  sentinel:
#    enabled: true # 激活Sentinel对Feign的支持

4.业务类

5.在sentinel中监视限流