安装sentinel:
执行命令;
java -jar sentinel-dashboard-1.8.6.jar
注:sentinel的默认端口为8080,容易出现tomcat的冲突。
当端口冲突,可以使用该指令修改sentinel的端口
默认账号和密码都为sentinel
Springcloud整合sentinel:
导入依赖:
<!--SpringCloud alibaba sentinel -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
</dependency>
<!--nacos-discovery-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
application.yml文件配置:
server:
port: 8401
spring:
application:
name: cloudalibaba-sentinel-service
cloud:
nacos:
discovery:
server-addr: localhost:8848 #Nacos服务注册中心地址
sentinel:
transport:
dashboard: localhost:8858 #配置Sentinel dashboard控制台服务地址
port: 8719 #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
测试类:
package com.wen.cloud.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class FlowLimitController
{
@GetMapping("/testA")
public String testA()
{
return "------testA";
}
@GetMapping("/testB")
public String testB()
{
return "------testB";
}
}
测试:
先访问接口 sentinel才会监测出相应的接口: