sentinel 实时监控服务

# 1.创建项目引入依赖

  com.alibaba.cloud
  spring-cloud-starter-alibaba-nacos-discovery




    com.alibaba.cloud
    spring-cloud-starter-alibaba-sentinel

# 2.配置

server.port=8789
spring.application.name=nacosclient
spring.cloud.nacos.server-addr=localhost:8848
spring.cloud.nacos.discovery.server-addr=${spring.cloud.nacos.server-addr}

spring.cloud.sentinel.enabled=true											 # 开启sentinel 默认开启
spring.cloud.sentinel.transport.dashboard=localhost:9191 # 连接dashboard
spring.cloud.sentinel.transport.port=8719								 # 与dashboard通信的端口

# 3.启动服务

# 4.访问dashboard界面查看服务监控
- 发现界面什么都没有? 
- 默认情况下sentiel为延迟加载,不会在启动之后立即创建服务监控,需要对服务进行调用时才会初始化

# 5.开发服务

@RestController
@Slf4j
public class SentinelController {
    @GetMapping("/sentinel/test")
    public String test(){
        log.info("sentinel test");
        return "sentinel test ";
    }

    @GetMapping("/sentinel/test1")
    public String test1(){
        log.info("sentinel test1");
        return "sentinel test1 ";
    }
}

# 6.启动进行调用
- http://localhost:8789/sentinel/test

# 7.查看监控界面