Sentinel link mode rule not working

前言

如何使用SentinelLink flow control rules？
How to solve the link mode rule does not take effect？

解决方案

Version information for the current project
SpringBoot 版本2.3.2.RELEASE
spring-cloud版本Hoxton.SR8
spring-cloud-alibaba版本2.2.5.RELEASE

1. 引入依赖

<dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-web-servlet</artifactId>
        </dependency>

2. 关闭sentinel的过滤器（If not set or not closed,Duplicate statistics problems occur）

spring:
  cloud:
    sentinel:
      filter:
        enabled: false

4. Add context filter

import com.alibaba.csp.sentinel.adapter.servlet.CommonFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class FilterContextConfig {
    
    @Bean
    public FilterRegistrationBean sentinelFilterRegistration() {
    
        FilterRegistrationBean registrationBean = new FilterRegistrationBean();
        registrationBean.setFilter(new CommonFilter());
        registrationBean.addUrlPatterns("/*");
        registrationBean.addInitParameter(CommonFilter.WEB_CONTEXT_UNIFY, "false");
        registrationBean.setName("sentinelFilter");
        registrationBean.setOrder(1);
        return registrationBean;
    }
}

3. 编写测试代码
   

4. 启动服务器,Ask for the two interfaces edited above,查看sentinel-dashboard控制台,Two links are shown

5. Write link rules,并保存
   The following figure represents the link/hello1对findByIdAccess to this resource is per second1次.
   

6. 请求/hello1这个接口,频繁刷新,会出现失败.while frequently requesting/hello2This link will not fail.
   

问题

如果不关闭sentinelwhat happens to the filter？

发送一次请求,sentinelTwo requests will be counted.

So please be careful to closesentinel过滤器