[Java知识库]sentinel url资源清洗

sentinel url资源清洗

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应用：将路径/path/{id}归集到/path下，避免创建太多的限流资源

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相关类与接口

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UrlCleaner

public interface UrlCleaner {
    String clean(String var1);
}

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使用示例

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application.yml

spring:
  application:
    name: hello-service
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848
    sentinel:
      transport:
        dashboard: localhost:8000

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CustomUrlCleaner

@Component
public class CustomUrlCleaner implements UrlCleaner {

    @Override
    public String clean(String s) {
        if (s!=null && s.startsWith("/hello")){
            return "/hello";
        }

        return s;
    }
}

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CustomFlowRule

public class CustomFlowRule implements InitFunc {

    @Override
    public void init() throws Exception {
        FlowRule flowRule = new FlowRule("/hello");
        flowRule.setGrade(RuleConstant.FLOW_GRADE_QPS)
                .setCount(1)
                .setControlBehavior(RuleConstant.CONTROL_BEHAVIOR_DEFAULT);

        FlowRuleManager.loadRules(Collections.singletonList(flowRule));
    }
}

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HelloController

@RestController
public class HelloController {

    @RequestMapping("/hello/{name}")
    public String hello(@PathVariable("name") String name){
        return "hello " + name;
    }
}

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META-INF/services/com.alibaba.csp.sentinel.init.InitFunc

com.example.demo.config.CustomFlowRule

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jemter 测试

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线程组

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http请求：设置随机url路径

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查看结果树

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