SpringCloud: sentinel热点参数限制

一、定义controller

package cn.edu.tju.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HotParamController {
    @RequestMapping("/getHotParam/{id}")
    @SentinelResource(value = "getHotParam", blockHandler = "myBlockHandler")
    public String getHotParam(@PathVariable String id){
        return "get: " + id;
    }

    public String myBlockHandler(@PathVariable String id, BlockException ex){
        return "get: 热点数据";
    }
}

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二、配置热点参数限制规则

然后编辑规则：