随着微服务的流行,服务和服务之间的稳定性变得越来越重要。Sentinel 以流量为切入点,从流量控制、熔断降级、系统负载保护等多个维度保护服务的稳定性。
下载地址:https://github.com/alibaba/Sentinel/releases
Sentinel 分为两个部分:
下载好后,来到jar包位置打开cmd,java -jar sentinel-dashboard-1.8.2.jar运行,sentinel默认是8080端口,访问http://localhost:8080查看控制台,登录账号密码默认都是sentinel,启动nacos服务,http://localhost:8848/nacos/#/login
<dependencies>
<!--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>
<!--openfeign-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<!-- SpringBoot整合Web组件+actuator -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!--日常通用jar包配置-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>4.6.3</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
server: port: 8401 spring: application: name: cloudalibaba-sentinel-service cloud: nacos: discovery: #Nacos服务注册中心地址 server-addr: localhost:8848 sentinel: transport: #配置Sentinel dashboard地址 dashboard: localhost:8080 #默认8719端口,假如被占用会自动从8719开始依次+1扫描,直至找到未被占用的端口 port: 8719 management: endpoints: web: exposure: include: ‘*‘
原文:https://www.cnblogs.com/ftlzypx/p/15027624.html