文章目录

• 1.简单代码
• • 1.1依赖
  • 1.2配置文件配置
  • • 1.2.1项目yml配置文件
    • 1.2.2nacos配置文件
  • 1.2controller
  • 1.3 service
• 2.sentinel下载运行
• 3.运行验证

1.简单代码

1.1依赖

SpringBoot 2.3.12.RELEASE
SpringCloudAlibaba 2.2.8.RELEASE

 		org.springframework.bootspring-boot-starter-webcom.alibaba.cloudspring-cloud-starter-alibaba-nacos-configcom.alibaba.cloudspring-cloud-starter-alibaba-nacos-discoverycom.alibaba.cloudspring-cloud-starter-alibaba-sentinelcom.alibaba.cspsentinel-datasource-nacosorg.springframework.bootspring-boot-starter-actuatororg.springframework.bootspring-boot-starter-testtest

1.2配置文件配置

删除项目的.properties文件改为bootstrap.yml文件

1.2.1项目yml配置文件

spring:application:name: springcloud-sentinelcloud:nacos:config:server-addr: 127.0.0.1:8848namespace: configfile-extension: yamlgroup: DEFAULT_GROUPdiscovery:server-addr: 127.0.0.1:8848bootstrap:enabled: true
#  profiles:
#    active: dev

1.2.2nacos配置文件

server:port: 8085spring:application.name: springcloud-sentinelcloud:sentinel:transport.dashboard: localhost:8080datasource:ds.nacos:username: nacospassword: nacosruleType: flowgroupId: DEFAULT_GROUPdataId: ${spring.application.name}server-addr : localhost:8848

1.2controller

@RequestMapping("/test")
@RestController
public class HelloController {@Autowiredprivate TestService service;@GetMapping("/hello/{name}")public String hello(@PathVariable String name){return service.sayHello(name);}
}

1.3 service

@Service
public class TestService {@SentinelResource(value = "sayHello")public String sayHello(String name) {return "Hello, " + name;}
}

2.sentinel下载运行

下载jar包地址
https://github.com/alibaba/Sentinel/releases
jar -jar sentinel-dashboard-1.8.1.jar

访问http://localhost:8080
用户名/密码 sentinel/sentinel

3.运行验证

运行成功