Sentinel
官网
代码语言：javascript复制https://github.com/alibaba/Sentinel中文
代码语言：javascript复制https://github.com/alibaba/Sentinel/wiki/介绍
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
下载到本地sentinel-dashboard-1.7.0.jar
java -jar sentinel-dashboard-1.7.0.jar
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
访问sentinel管理界面
代码语言：javascript复制http://localhost:8080登录账号密码均为sentinel
通常需要的依赖
代码语言：javascript复制 <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>
