Sentinel搭建控制面板不显示项目

今天搭建sentinel控制面板项目时而显示 时而不显示。抓狂！ 分享一下搭建心得及注意事项：

1.Sentinel控制台的安装启动

1. 下载 https://github.com/alibaba/Sentinel/releases
2. 启动

java -jar sentinel-dashboard-1.8.5.jar    #默认是8080端口

3. 登录

http://localhost:8080/#/login  #账号密码都是sentinel

2.创建工程

1. 创建工程
2. 添加坐标依赖
3. 创建yaml
4. 创建启动类
5. 创建Controller

3.讲解

1. 创建工程
2. 添加坐标依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>item-master</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>sentinel</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--注册中心-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!--配置-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <!--sentinel-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>
    </dependencies>
</project>

3. 创建application.yaml和bootstrap.yaml

application.yaml:

spring:
  application:
    name: sentinel-client1
  cloud:
    sentinel:
      transport:
        port: 8719
        dashboard: localhost:8080
server:
  port: 9001

bootstrap.yaml:

spring:
  application:
    name: service-client1
  cloud:
    nacos:
      config:
        server-addr: ${
          
   spring.cloud.nacos.server-addr}
      server-addr: localhost:8848
      discovery:
        server-addr: ${
          
   spring.cloud.nacos.server-addr}

4.创建启动类和controller

package com.it;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@EnableDiscoveryClient
public class SentinelApplication {
          
   
    public static void main(String[] args) {
          
   
        SpringApplication.run(SentinelApplication.class, args);
    }

    @RestController
    public class TestController {
          
   

        @GetMapping(value = "/hello")
        public String hello() {
          
   
            System.out.println("Hello Sentinel");
            return "Hello Sentinel";
        }

    }

}

5.启动nacos服务端 6.测试请求

http://localhost:9001/hello

7.刷新控制面板

http://localhost:8080/#/dashboard/home

这样控制面板就能显示应用了。