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