【Sentinel】sentinel 集成 apollo 最佳实践

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
            <version>0.9.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-datasource-apollo</artifactId>
            <version>1.5.2</version>
        </dependency>

package cn.coder4j.study.example.sentinel;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * @author buhao
 * @version TestController.java, v 0.1 2019-09-19 20:53 buhao
 */
@RequestMapping("/test")
@Controller
public class TestController {

    /**
     * 没有注解通过自适应的限流
     * @return
     */
    @GetMapping("/flowRule")
    @ResponseBody
    public String flowRule(){
        return "success";
    }

    /**
     * 通过手动注解的限流
     * @return
     */
    @GetMapping("/flowRuleWithAnno")
    @ResponseBody
    @SentinelResource("flowRuleWithAnno")
    public String flowRuleWithAnno(){
        return "success";
    }

    /**
     * 参数限流规则测试
     * @param param
     * @return
     */
    @GetMapping("/paramFlowRule")
    @ResponseBody
    @SentinelResource("paramFlowRule")
    public String paramFlowRule(String param){
        return "success";
    }

    /**
     * 熔断规则测试
     * @return
     */
    @GetMapping("/degradeRule")
    @ResponseBody
    @SentinelResource("degradeRule")
    public String degradeRule(){
        throw new RuntimeException("服务器异常");
    }
}

apollo:
  bootstrap:
    enabled: true # 开启 apollo
  meta: xxx       # 指定 apollo 注册地址
app:
  id: sentinel-apollo  # 指定规则项目在 apollo 的app.id，要与 sentinel 控制台启动参数一致
spring:
  application:
    name: study-sentinel-example  # 应用名称，不同项目要唯一，会把他做为规则 Key 的前缀
  cloud:
    sentinel:
      transport:
        dashboard: localhost:8989  # sentinel 控制台的地址
      datasource:
        ds1:
          apollo:
            namespace-name: {部门名}.sentinel-rule  # 保存规则的 apollo 应用的公共 namespace， 要与 sentinel 控制台启动参数一致
            rule-type: flow   # 指定该数据源是限流规则
            flow-rules-key: ${spring.application.name}-${spring.cloud.sentinel.datasource.ds1.apollo.rule-type} # 指定该规则在 apollo 应用中 key 名称
        ds2:
          apollo:
            namespace-name: {部门名}.sentinel-rule
            rule-type: degrade # 指定该数据源是熔断规则
            flow-rules-key: ${spring.application.name}-${spring.cloud.sentinel.datasource.ds2.apollo.rule-type} # 指定该规则在 apollo 应用中 key 名称
        ds3:
          apollo:
            namespace-name: {部门名}.sentinel-rule
            rule-type: param_flow # 指定该数据源是参数限流规则
            flow-rules-key: ${spring.application.name}-${spring.cloud.sentinel.datasource.ds3.apollo.rule-type} # 指定该规则在 apollo 应用中 key 名称
        ds4:
          apollo:
            namespace-name: {部门名}.sentinel-rule
            rule-type: system  # 指定该数据源是系统限流规则
            flow-rules-key: ${spring.application.name}-${spring.cloud.sentinel.datasource.ds4.apollo.rule-type} # 指定该规则在 apollo 应用中 key 名称
        ds5:
          apollo:
            namespace-name: {部门名}.sentinel-rule
            rule-type: authority # 指定该数据源是认证限流(黑白名单)规则
            flow-rules-key: ${spring.application.name}-${spring.cloud.sentinel.datasource.ds5.apollo.rule-type} # 指定该规则在 apollo 应用中 key 名称