sentinel持久限流化化规则到nacos

1. pom添加依赖

   <dependency>
       <groupId>com.alibaba.cspgroupId>
       <artifactId>sentinel-datasource-nacosartifactId>
   dependency>
   

2. 添加nacos配置

   spring:
     cloud:
       sentinel:
         datasource:
           ds:
             nacos:
               server-addr: 127.0.0.1:8848
               # namespace: public  # 注意public空间下不能显示的设置为public否则获取不到配置
               dataId: sentinel-client-app-sentinel.json
               groupId: DEFAULT_GROUP
               data-type: json
               rule-type: flow
   

3. 编写Controller测试Sentinel

   @RestController
   @RequestMapping("/sentinel/datasource")
   public class SentinelDatasourceController {
   
       @GetMapping("/index")
       @SentinelResource("sentinelDatasourceIndex")
       public String index(){
   
           return "hello world index" ;
       }
   }
   

4. nacos中添加dataId为sentinel-client-app-sentinel.json的配置

   [
     {
       "resource": "sentinelDatasourceIndex",
       "limitApp": "default",
       "grade": 1,
       "count": 1,
       "strategy": 0,
       "controlBehavior": 0,
       "clusterMode": false
     }
   ]
   

5. 注意如果在namespace为public下创建的配置，则编写配置时namespace必须为空