sentinel-core

1. 引入依赖

   <dependencies><dependency><groupId>com.alibaba.csp</groupId><artifactId>sentinel-core</artifactId></dependency><dependency><groupId>com.alibaba.csp</groupId><artifactId>sentinel-annotation-aspectj</artifactId></dependency>
   </dependencies>
   

2. 添加sentinel注解支持配置

   @Configuration
   public class SentinelAspectConfiguration {@Beanpublic SentinelResourceAspect sentinelResourceAspect() {return new SentinelResourceAspect();}
   }
   

3. 编写配置并加载

   @Slf4j
   @SpringBootApplication
   public class WebMvcApplication {public static void main(String[] args) {SpringApplication.run(WebMvcApplication.class, args) ;// 加载限流规则initFlowRules();}private static void initFlowRules(){log.info("load sentinel flow rule .....");List<FlowRule> rules = new ArrayList<>();FlowRule rule = new FlowRule();rule.setResource("HelloWorld");rule.setGrade(RuleConstant.FLOW_GRADE_QPS);// Set limit QPS to 1.rule.setCount(1);rules.add(rule);FlowRuleManager.loadRules(rules);}
   }
   

4. 业务代码编写

   @RestController
   @RequestMapping("/hello")
   public class HelloController {@SentinelResource("HelloWorld")@GetMapping("/index")public String index(){return "hello index" ;}
   }