SpringCloud 2.x学习笔记：22、使用Sentinel实现接口限流

分手后的思念是犯贱 2021-12-20 05:13 495阅读 0赞

参考  
[http://blog.didispace.com/spring-cloud-alibaba-sentinel-1/][http_blog.didispace.com_spring-cloud-alibaba-sentinel-1]

### 部署Sentinel Dashboard ###

[https://github.com/alibaba/Sentinel/releases][https_github.com_alibaba_Sentinel_releases]

下载jar包，并上传至服务器

[root@elastic1 app]# ll
    total 20548
    drwxr-xr-x 9 root    root        4096 Jun 28 16:34 nacos
    -rw-rw-r-- 1 elastic elastic 21035126 Jun 28 19:17 sentinel-dashboard-1.6.2.jar
    [root@elastic1 app]#

启动Sentinel Dashboard，默认是8080端口，这里指定8084端口

[root@elastic1 ~]# java -jar /app/sentinel-dashboard-1.6.2.jar --server.port=8084

或者

[root@elastic1 app]# java -jar sentinel-dashboard-1.6.2.jar --server.port=8084
    INFO: log base dir is: /root/logs/csp/
    INFO: log name use pid is: false
    
      .   ____          _            __ _ _
     /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
    ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
     \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
      '  |____| .__|_| |_|_| |_\__, | / / / /
     =========|_|==============|___/=/_/_/_/
     :: Spring Boot ::        (v2.0.5.RELEASE)
    
    2019-06-28 19:28:18.372  INFO 26515 --- [           main] c.a.c.s.dashboard.DashboardApplication   : Starting DashboardApplication on elastic1 with PID 26515 (/app/sentinel-dashboard-1.6.2.jar started by root in /app)
    2019-06-28 19:28:18.378  INFO 26515 --- [           main] c.a.c.s.dashboard.DashboardApplication   : No active profile set, falling back to default profiles: default
    2019-06-28 19:28:18.468  INFO 26515 --- [           main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@1761e840: startup date [Fri Jun 28 19:28:18 CST 2019]; root of context hierarchy
    2019-06-28 19:28:20.639  INFO 26515 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8084 (http)
    2019-06-28 19:28:20.683  INFO 26515 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
    2019-06-28 19:28:20.683  INFO 26515 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.34
    2019-06-28 19:28:20.700  INFO 26515 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib]
    2019-06-28 19:28:20.813  INFO 26515 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
    2019-06-28 19:28:20.814  INFO 26515 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 2346 ms
    2019-06-28 19:28:20.925  INFO 26515 --- [ost-startStop-1] c.a.c.s.dashboard.config.WebConfig       : Sentinel servlet CommonFilter registered
    2019-06-28 19:28:21.047  INFO 26515 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
    2019-06-28 19:28:21.048  INFO 26515 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
    2019-06-28 19:28:21.048  INFO 26515 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
    2019-06-28 19:28:21.049  INFO 26515 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
    2019-06-28 19:28:21.049  INFO 26515 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'authenticationFilter' to urls: [/*]
    2019-06-28 19:28:21.049  INFO 26515 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'sentinelFilter' to urls: [/*]
    2019-06-28 19:28:21.049  INFO 26515 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]
    2019-06-28 19:28:22.107  INFO 26515 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
    2019-06-28 19:28:22.380  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@1761e840: startup date [Fri Jun 28 19:28:18 CST 2019]; root of context hierarchy
    2019-06-28 19:28:22.505  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/app/briefinfos.json],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.discovery.AppInfo>> com.alibaba.csp.sentinel.dashboard.controller.AppController.queryAppInfos(javax.servlet.http.HttpServletRequest)
    2019-06-28 19:28:22.507  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/app/{app}/machines.json],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.domain.vo.MachineInfoVo>> com.alibaba.csp.sentinel.dashboard.controller.AppController.getMachinesByApp(java.lang.String)
    2019-06-28 19:28:22.507  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/app/{app}/machine/remove.json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.lang.String> com.alibaba.csp.sentinel.dashboard.controller.AppController.removeMachineById(java.lang.String,java.lang.String,int)
    2019-06-28 19:28:22.508  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/app/names.json],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<java.lang.String>> com.alibaba.csp.sentinel.dashboard.controller.AppController.queryApps(javax.servlet.http.HttpServletRequest)
    2019-06-28 19:28:22.511  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/demo/loop],produces=[application/json]}" onto public java.lang.String com.alibaba.csp.sentinel.dashboard.controller.DemoController.loop(java.lang.String,int) throws com.alibaba.csp.sentinel.slots.block.BlockException
    2019-06-28 19:28:22.511  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/demo/link],produces=[application/json]}" onto public java.lang.String com.alibaba.csp.sentinel.dashboard.controller.DemoController.link() throws com.alibaba.csp.sentinel.slots.block.BlockException
    2019-06-28 19:28:22.512  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/demo/greeting],produces=[application/json]}" onto public java.lang.String com.alibaba.csp.sentinel.dashboard.controller.DemoController.greeting()
    2019-06-28 19:28:22.512  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/demo/slow],produces=[application/json]}" onto public java.lang.String com.alibaba.csp.sentinel.dashboard.controller.DemoController.slow(java.lang.String,int) throws com.alibaba.csp.sentinel.slots.block.BlockException
    2019-06-28 19:28:22.517  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/degrade/rules.json],produces=[application/json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity>> com.alibaba.csp.sentinel.dashboard.controller.DegradeController.queryMachineRules(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String,java.lang.Integer)
    2019-06-28 19:28:22.517  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/degrade/save.json],produces=[application/json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.DegradeController.updateIfNotNull(javax.servlet.http.HttpServletRequest,java.lang.Long,java.lang.String,java.lang.String,java.lang.String,java.lang.Double,java.lang.Integer,java.lang.Integer)
    2019-06-28 19:28:22.518  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/degrade/new.json],produces=[application/json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.DegradeController.add(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String,java.lang.Integer,java.lang.String,java.lang.String,java.lang.Double,java.lang.Integer,java.lang.Integer)
    2019-06-28 19:28:22.518  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/degrade/delete.json],produces=[application/json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.lang.Long> com.alibaba.csp.sentinel.dashboard.controller.DegradeController.delete(javax.servlet.http.HttpServletRequest,java.lang.Long)
    2019-06-28 19:28:22.527  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v2/flow/rules],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity>> com.alibaba.csp.sentinel.dashboard.controller.v2.FlowControllerV2.apiQueryMachineRules(javax.servlet.http.HttpServletRequest,java.lang.String)
    2019-06-28 19:28:22.528  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v2/flow/rule],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.v2.FlowControllerV2.apiAddFlowRule(javax.servlet.http.HttpServletRequest,com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity)
    2019-06-28 19:28:22.528  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v2/flow/rule/{id}],methods=[PUT]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.v2.FlowControllerV2.apiUpdateFlowRule(javax.servlet.http.HttpServletRequest,java.lang.Long,com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity)
    2019-06-28 19:28:22.529  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v2/flow/rule/{id}],methods=[DELETE]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.lang.Long> com.alibaba.csp.sentinel.dashboard.controller.v2.FlowControllerV2.apiDeleteRule(javax.servlet.http.HttpServletRequest,java.lang.Long)
    2019-06-28 19:28:22.532  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/authority/rule/{id}],methods=[DELETE]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.lang.Long> com.alibaba.csp.sentinel.dashboard.controller.AuthorityRuleController.apiDeleteRule(javax.servlet.http.HttpServletRequest,java.lang.Long)
    2019-06-28 19:28:22.532  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/authority/rule],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.AuthorityRuleController.apiAddAuthorityRule(javax.servlet.http.HttpServletRequest,com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity)
    2019-06-28 19:28:22.533  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/authority/rule/{id}],methods=[PUT]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.AuthorityRuleController.apiUpdateParamFlowRule(javax.servlet.http.HttpServletRequest,java.lang.Long,com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity)
    2019-06-28 19:28:22.533  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/authority/rules],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity>> com.alibaba.csp.sentinel.dashboard.controller.AuthorityRuleController.apiQueryAllRulesForMachine(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String,java.lang.Integer)
    2019-06-28 19:28:22.534  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/registry/machine],produces=[application/json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<?> com.alibaba.csp.sentinel.dashboard.controller.MachineRegistryController.receiveHeartBeat(java.lang.String,java.lang.Long,java.lang.String,java.lang.String,java.lang.String,java.lang.Integer)
    2019-06-28 19:28:22.536  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/auth/login],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result com.alibaba.csp.sentinel.dashboard.controller.AuthController.login(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String)
    2019-06-28 19:28:22.536  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/auth/logout],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result com.alibaba.csp.sentinel.dashboard.controller.AuthController.logout(javax.servlet.http.HttpServletRequest)
    2019-06-28 19:28:22.539  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v1/flow/save.json],methods=[PUT]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.FlowControllerV1.updateIfNotNull(javax.servlet.http.HttpServletRequest,java.lang.Long,java.lang.String,java.lang.String,java.lang.String,java.lang.Integer,java.lang.Double,java.lang.Integer,java.lang.String,java.lang.Integer,java.lang.Integer,java.lang.Integer)
    2019-06-28 19:28:22.540  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v1/flow/rules],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity>> com.alibaba.csp.sentinel.dashboard.controller.FlowControllerV1.apiQueryMachineRules(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String,java.lang.Integer)
    2019-06-28 19:28:22.541  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v1/flow/rule],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.FlowControllerV1.apiAddFlowRule(javax.servlet.http.HttpServletRequest,com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity)
    2019-06-28 19:28:22.541  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v1/flow/delete.json],methods=[DELETE]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.lang.Long> com.alibaba.csp.sentinel.dashboard.controller.FlowControllerV1.delete(javax.servlet.http.HttpServletRequest,java.lang.Long)
    2019-06-28 19:28:22.545  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/state_single],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.domain.cluster.state.ClusterUniversalStateVO> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterConfigController.apiGetClusterState(java.lang.String,java.lang.String,java.lang.Integer)
    2019-06-28 19:28:22.545  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/server_state/{app}],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.domain.cluster.state.AppClusterServerStateWrapVO>> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterConfigController.apiGetClusterServerStateOfApp(java.lang.String)
    2019-06-28 19:28:22.546  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/client_state/{app}],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.domain.cluster.state.AppClusterClientStateWrapVO>> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterConfigController.apiGetClusterClientStateOfApp(java.lang.String)
    2019-06-28 19:28:22.546  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/state/{app}],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.domain.cluster.state.ClusterUniversalStatePairVO>> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterConfigController.apiGetClusterStateOfApp(java.lang.String)
    2019-06-28 19:28:22.547  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/config/modify_single],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.lang.Boolean> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterConfigController.apiModifyClusterConfig(java.lang.String)
    2019-06-28 19:28:22.548  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/system/rules.json],produces=[application/json]}" onto com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.SystemRuleEntity>> com.alibaba.csp.sentinel.dashboard.controller.SystemController.queryMachineRules(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String,java.lang.Integer)
    2019-06-28 19:28:22.549  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/system/save.json],produces=[application/json]}" onto com.alibaba.csp.sentinel.dashboard.domain.Result<?> com.alibaba.csp.sentinel.dashboard.controller.SystemController.updateIfNotNull(javax.servlet.http.HttpServletRequest,java.lang.Long,java.lang.String,java.lang.Double,java.lang.Long,java.lang.Long,java.lang.Double)
    2019-06-28 19:28:22.549  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/system/new.json],produces=[application/json]}" onto com.alibaba.csp.sentinel.dashboard.domain.Result<?> com.alibaba.csp.sentinel.dashboard.controller.SystemController.add(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String,java.lang.Integer,java.lang.Double,java.lang.Long,java.lang.Long,java.lang.Double)
    2019-06-28 19:28:22.550  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/system/delete.json],produces=[application/json]}" onto com.alibaba.csp.sentinel.dashboard.domain.Result<?> com.alibaba.csp.sentinel.dashboard.controller.SystemController.delete(javax.servlet.http.HttpServletRequest,java.lang.Long)
    2019-06-28 19:28:22.553  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/paramFlow/rule/{id}],methods=[DELETE]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.lang.Long> com.alibaba.csp.sentinel.dashboard.controller.ParamFlowRuleController.apiDeleteRule(javax.servlet.http.HttpServletRequest,java.lang.Long)
    2019-06-28 19:28:22.553  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/paramFlow/rule/{id}],methods=[PUT]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.ParamFlowRuleController.apiUpdateParamFlowRule(javax.servlet.http.HttpServletRequest,java.lang.Long,com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity)
    2019-06-28 19:28:22.554  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/paramFlow/rules],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity>> com.alibaba.csp.sentinel.dashboard.controller.ParamFlowRuleController.apiQueryAllRulesForMachine(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.String,java.lang.Integer)
    2019-06-28 19:28:22.555  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/paramFlow/rule],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity> com.alibaba.csp.sentinel.dashboard.controller.ParamFlowRuleController.apiAddParamFlowRule(javax.servlet.http.HttpServletRequest,com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity)
    2019-06-28 19:28:22.557  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/assign/all_server/{app}],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.domain.cluster.ClusterAppAssignResultVO> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterAssignController.apiAssignAllClusterServersOfApp(java.lang.String,com.alibaba.csp.sentinel.dashboard.domain.cluster.ClusterAppFullAssignRequest)
    2019-06-28 19:28:22.557  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/assign/single_server/{app}],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.domain.cluster.ClusterAppAssignResultVO> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterAssignController.apiAssignSingleClusterServersOfApp(java.lang.String,com.alibaba.csp.sentinel.dashboard.domain.cluster.ClusterAppSingleServerAssignRequest)
    2019-06-28 19:28:22.558  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/cluster/assign/unbind_server/{app}],methods=[POST]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<com.alibaba.csp.sentinel.dashboard.domain.cluster.ClusterAppAssignResultVO> com.alibaba.csp.sentinel.dashboard.controller.cluster.ClusterAssignController.apiUnbindClusterServersOfApp(java.lang.String,java.util.Set<java.lang.String>)
    2019-06-28 19:28:22.559  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/metric/queryTopResourceMetric.json],produces=[application/json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<?> com.alibaba.csp.sentinel.dashboard.controller.MetricController.queryTopResourceMetric(java.lang.String,java.lang.Integer,java.lang.Integer,java.lang.Boolean,java.lang.Long,java.lang.Long,java.lang.String)
    2019-06-28 19:28:22.559  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/metric/queryByAppAndResource.json],produces=[application/json]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<?> com.alibaba.csp.sentinel.dashboard.controller.MetricController.queryByAppAndResource(java.lang.String,java.lang.String,java.lang.Long,java.lang.Long)
    2019-06-28 19:28:22.561  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/resource/machineResource.json],methods=[GET]}" onto public com.alibaba.csp.sentinel.dashboard.domain.Result<java.util.List<com.alibaba.csp.sentinel.dashboard.domain.vo.ResourceVo>> com.alibaba.csp.sentinel.dashboard.controller.ResourceController.fetchResourceChainListOfMachine(java.lang.String,java.lang.Integer,java.lang.String,java.lang.String)
    2019-06-28 19:28:22.564  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
    2019-06-28 19:28:22.565  INFO 26515 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
    2019-06-28 19:28:22.578  INFO 26515 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Root mapping to handler of type [class org.springframework.web.servlet.mvc.ParameterizableViewController]
    2019-06-28 19:28:22.600  INFO 26515 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
    2019-06-28 19:28:22.600  INFO 26515 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
    2019-06-28 19:28:22.881  INFO 26515 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
    2019-06-28 19:28:22.934  INFO 26515 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8084 (http) with context path ''
    2019-06-28 19:28:22.942  INFO 2651

[http://10.17.12.158:8084][http_10.17.12.158_8084]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70]

默认用户名和密码都是sentinel  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 1]

### 整合Sentinel ###

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>com.cntaiping.tpa</groupId>
        <artifactId>sentinel-rate</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
        <name>sentinel-rate</name>
        <description>Demo project for Spring Boot</description>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.6.RELEASE</version>
            <relativePath/> 
        </parent>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
            </dependency>
        </dependencies>
        
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>Greenwich.SR1</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>0.2.2.RELEASE</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <executions>
                        <execution>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
    
    </project>

spring.application.name=alibaba-sentinel-rate-limiting
    server.port=8085
    # sentinel dashboard
    spring.cloud.sentinel.transport.dashboard=http://10.17.12.158:8084

package com.cntaiping.tpa.sentinelrate.controller;
    
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class HelloController {
    
        @GetMapping("/hello")
        public String hello() {
            return "Hello,World!";
        }
    }

curl localhost:8085/hello

![在这里插入图片描述][20190628194007715.png]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 2]

### 配置限流规则 ###

簇点链路–>流控  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 3]

阈值类型：默认寻找QPS即可  
单机阈值：输入2，表示/hello接口的限流策略是每秒最多允许2个请求进入  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 4]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 5]

### 验证限流 ###

这里尝试快速访问`curl localhost:8085/hello`，多次尝试后，出现如下效果。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 6]

[http_blog.didispace.com_spring-cloud-alibaba-sentinel-1]: http://blog.didispace.com/spring-cloud-alibaba-sentinel-1/
[https_github.com_alibaba_Sentinel_releases]: https://github.com/alibaba/Sentinel/releases
[http_10.17.12.158_8084]: http://10.17.12.158:8084
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70]: /images/20211220/2d1868a01933433c8eccd789630cda90.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 1]: /images/20211220/de29e44790dd4b43b66dc798fba24266.png
[20190628194007715.png]: /images/20211220/cdb91daae9a743e8924ab439794c1a39.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 2]: /images/20211220/e7ad6a93132a4859ba0cbebcf56ba210.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 3]: /images/20211220/bfafeceb876f487c8229529aaa5a5bcc.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 4]: /images/20211220/72e87a819abc4d07902db22a8e0cc0e1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 5]: /images/20211220/15783ff75e8543f3b0e992ddb1bd5ca4.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5neXVxaWFuZw_size_16_color_FFFFFF_t_70 6]: /images/20211220/c00bfd9f0b99482798af00acf7a04d9d.png