SpringCloud AlibabaSentinel-CFANZ编程社区

Sentinel

官网

https://github.com/alibaba/Sentinel

中文

https://github.com/alibaba/Sentinel/wiki/%E4%BB%8B%E7%BB%8D

SpringCloud AlibabaSentinel_github

SpringCloud AlibabaSentinel_jar_02

SpringCloud AlibabaSentinel_java_03

怎么玩

服务使用中的各种问题

服务雪崩

服务降级

服务熔断

服务限流

安装Sentinel控制台

后台

前台8080

安装步骤

下载

https://github.com/alibaba/Sentinel/releases

SpringCloud AlibabaSentinel_spring_04

下载到本地sentinel-dashboard-1.7.0.jar

java -jar sentinel-dashboard-1.7.0.jar

SpringCloud AlibabaSentinel_spring_05

运行命令访问

前提

java8环境OK

8080端口不能被占用

sentinel管理界面

SpringCloud AlibabaSentinel_java_06

访问sentinel管理界面

http://localhost:8080

登录账号密码均为sentinel

通常需要的依赖

 <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>