![](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084141-696b4b45daed7.png\")
https:\/\/github.com\/Netflix\/Hystrix\/wiki\/How-To-Use<\/span><\/span><\/p>\n\u4e8c\u3001\u6848\u4f8b<\/h2>\n1\u3001\u6784\u5efa8001\u670d\u52a1<\/h3>\n
（1）\u521b\u5efa\u6a21\u57578001<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cloud-provider-hystrix-payment8001<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084142-696b4b4605e8d.png\")
<\/p>\n
（2）\u6dfb\u52a0pom<\/p>\n
<?xml version="1.0" encoding="UTF-8"?>
\n<project xmlns="http:\/\/maven.apache.org\/POM\/4.0.0"
\n xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance"
\n xsi:schemaLocation="http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd">
\n <modelVersion>4.0.0<\/modelVersion>
\n <parent>
\n <groupId>com.hk.cloudstudy<\/groupId>
\n <artifactId>SecondSpringCloud<\/artifactId>
\n <version>1.0-SNAPSHOT<\/version>
\n <\/parent><\/p>\n
<artifactId>cloud-provider-hystrix-payment8001<\/artifactId><\/p>\n
<properties>
\n <maven.compiler.source>8<\/maven.compiler.source>
\n <maven.compiler.target>8<\/maven.compiler.target>
\n <project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>
\n <\/properties><\/p>\n
<dependencies>
\n <!–hystrix–>
\n <dependency>
\n <groupId>org.springframework.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-netflix-hystrix<\/artifactId>
\n <\/dependency>
\n <!–eureka client–>
\n <dependency>
\n <groupId>org.springframework.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-netflix-eureka-client<\/artifactId>
\n <\/dependency>
\n <!–web–>
\n <dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-web<\/artifactId>
\n <\/dependency><\/p>\n
<dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-actuator<\/artifactId>
\n <\/dependency><\/p>\n
<dependency><!– \u5f15\u5165\u81ea\u5df1\u5b9a\u4e49\u7684api\u901a\u7528\u5305，\u53ef\u4ee5\u4f7f\u7528Payment\u652f\u4ed8Entity –>
\n <groupId>com.hk.cloudstudy<\/groupId>
\n <artifactId>cloud-api-commons<\/artifactId>
\n <version>1.0-SNAPSHOT<\/version>
\n <\/dependency><\/p>\n
<dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-test<\/artifactId>
\n <scope>test<\/scope>
\n <\/dependency>
\n <\/dependencies><\/p>\n
<\/project> <\/p>\n
（3）\u6dfb\u52a0yml\u6587\u4ef6<\/p>\n
server:
\n port: 8001<\/p>\n
spring:
\n application:
\n name: cloud-provider-hystrix-payment<\/p>\n
eureka:
\n client:
\n register-with-eureka: true
\n fetch-registry: true
\n service-url:
\n defaultZone: http:\/\/localhost:7001\/eureka <\/p>\n
（4）\u4fee\u6539\u542f\u52a8\u7c7b<\/p>\n
package com.hk.cloudstudy;<\/p>\n
import org.springframework.boot.SpringApplication;
\nimport org.springframework.boot.autoconfigure.SpringBootApplication;
\nimport org.springframework.cloud.netflix.eureka.EnableEurekaClient;<\/p>\n
@SpringBootApplication
\n@EnableEurekaClient
\npublic class PaymentHystrixMain8001 {
\n public static void main(String[] args) {
\n SpringApplication.run(PaymentHystrixMain8001.class, args);
\n }
\n} <\/p>\n
（5）\u7f16\u5199service<\/p>\n
package com.hk.cloudstudy.service;<\/p>\n
import org.springframework.stereotype.Service;<\/p>\n
@Service
\npublic class PaymentServicePaymentService {<\/p>\n
\/\/ \u6b63\u5e38\u5b9e\u4f8b
\n public String paymentInfo_OK(Integer id) {
\n return "\u7ebf\u7a0b\u6c60：" + Thread.currentThread().getName() + " paymentInfo_OK,id：" + id;
\n }<\/p>\n
\/\/ \u8d85\u65f6\u793a\u4f8b
\n public String paymentInfo_TimeOut(Integer id) {
\n try {
\n Thread.sleep(3000);
\n } catch (InterruptedException e) {
\n e.printStackTrace();
\n }
\n return "\u7ebf\u7a0b\u6c60：" + Thread.currentThread().getName() + " paymentInfo_TimeOut,id：" + id;
\n }
\n}<\/p>\n
（6）\u7f16\u5199controller<\/p>\n
package com.hk.cloudstudy.controller;<\/p>\n
import com.hk.cloudstudy.service.PaymentServicePaymentService;
\nimport lombok.extern.slf4j.Slf4j;
\nimport org.springframework.beans.factory.annotation.Autowired;
\nimport org.springframework.beans.factory.annotation.Value;
\nimport org.springframework.web.bind.annotation.GetMapping;
\nimport org.springframework.web.bind.annotation.PathVariable;
\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n
@RestController
\n@Slf4j
\npublic class PaymentController {<\/p>\n
@Autowired
\n private PaymentServicePaymentService paymentService;<\/p>\n
@Value("${server.port}")
\n private String serverPort;<\/p>\n
@GetMapping("\/payment\/hystrix\/ok\/{id}")
\n public String paymentInfo_OK(@PathVariable("id") Integer id) {
\n String res = paymentService.paymentInfo_OK(id);
\n log.info("res = " + res);
\n return res;
\n }<\/p>\n
@GetMapping("\/payment\/hystrix\/timeout\/{id}")
\n public String paymentInfo_TimeOut(@PathVariable("id") Integer id) {
\n String res = paymentService.paymentInfo_TimeOut(id);
\n log.info("res = " + res);
\n return res;
\n }
\n}<\/p>\n
（7）\u6d4b\u8bd5<\/p>\n
\u542f\u52a87001\u3001\u7136\u540e\u542f\u52a88001<\/p>\n
\u8bbf\u95eehttp:\/\/localhost:8001\/payment\/hystrix\/ok\/1\u00a0\u548c\u00a0http:\/\/localhost:8001\/payment\/hystrix\/timeout\/1<\/p>\n
\u8fd4\u56de\u7ed3\u679c\u5747\u662f\u6210\u529f\u7684<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084142-696b4b465fb2f.png\")
<\/p>\n
\u5f53\u4f7f\u7528\u9ad8\u5e76\u53d1\u5de5\u5177\u6d4b\u8bd5\u63a5\u53e3\u65f6，\u4f1a\u53d1\u73b0\u7a0b\u5e8f\u76f4\u63a5\u88ab\u5361\u6b7b<\/p>\n
2\u3001\u6784\u5efa80\u670d\u52a1<\/h3>\n
（1）\u521b\u5efa\u670d\u52a1cloud-consumer-feign-hystrix-order80<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084142-696b4b46af984.png\")
<\/p>\n
（2）\u4fee\u6539pom<\/p>\n
<?xml version="1.0" encoding="UTF-8"?>
\n<project xmlns="http:\/\/maven.apache.org\/POM\/4.0.0"
\n xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance"
\n xsi:schemaLocation="http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd">
\n <modelVersion>4.0.0<\/modelVersion>
\n <parent>
\n <groupId>com.hk.cloudstudy<\/groupId>
\n <artifactId>SecondSpringCloud<\/artifactId>
\n <version>1.0-SNAPSHOT<\/version>
\n <\/parent><\/p>\n
<artifactId>cloud-consumer-feign-hystrix-order80<\/artifactId><\/p>\n
<properties>
\n <maven.compiler.source>8<\/maven.compiler.source>
\n <maven.compiler.target>8<\/maven.compiler.target>
\n <project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>
\n <\/properties><\/p>\n
<dependencies>
\n <!–openfeign–>
\n <dependency>
\n <groupId>org.springframework.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-openfeign<\/artifactId>
\n <\/dependency>
\n <!–hystrix–>
\n <dependency>
\n <groupId>org.springframework.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-netflix-hystrix<\/artifactId>
\n <\/dependency>
\n <!–eureka client–>
\n <dependency>
\n <groupId>org.springframework.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-netflix-eureka-client<\/artifactId>
\n <\/dependency>
\n <!– \u5f15\u5165\u81ea\u5df1\u5b9a\u4e49\u7684api\u901a\u7528\u5305，\u53ef\u4ee5\u4f7f\u7528Payment\u652f\u4ed8Entity –>
\n <dependency>
\n <groupId>com.hk.cloudstudy<\/groupId>
\n <artifactId>cloud-api-commons<\/artifactId>
\n <version>1.0-SNAPSHOT<\/version>
\n <\/dependency>
\n <!–web–>
\n <dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-web<\/artifactId>
\n <\/dependency>
\n <dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-actuator<\/artifactId>
\n <\/dependency><\/p>\n
<dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-test<\/artifactId>
\n <scope>test<\/scope>
\n <\/dependency>
\n <\/dependencies>
\n<\/project> <\/p>\n
（3）\u6dfb\u52a0yml\u6587\u4ef6<\/p>\n
server:
\n port: 80<\/p>\n
eureka:
\n client:
\n register-with-eureka: false
\n service-url:
\n defaultZone: http:\/\/localhost:7001\/eureka\/<\/p>\n
（4）\u4fee\u6539\u542f\u52a8\u7c7b<\/p>\n
package com.hk.cloudstudy;<\/p>\n
import org.springframework.boot.SpringApplication;
\nimport org.springframework.boot.autoconfigure.SpringBootApplication;
\nimport org.springframework.cloud.openfeign.EnableFeignClients;<\/p>\n
@SpringBootApplication
\n@EnableFeignClients
\npublic class OrderHystrixMain80 {
\n public static void main(String[] args) {
\n SpringApplication.run(OrderHystrixMain80.class, args);
\n }
\n} <\/p>\n
（5）\u7f16\u5199\u8fdc\u7a0b\u8c03\u7528service<\/p>\n
package com.hk.cloudstudy.service;<\/p>\n
import org.springframework.cloud.openfeign.FeignClient;
\nimport org.springframework.stereotype.Component;
\nimport org.springframework.web.bind.annotation.GetMapping;
\nimport org.springframework.web.bind.annotation.PathVariable;<\/p>\n
@Component
\n@FeignClient(value = "CLOUD-PROVIDER-HYSTRIX-PAYMENT")
\npublic interface PaymentHystrixService {<\/p>\n
@GetMapping("\/payment\/hystrix\/ok\/{id}")
\n public String paymentInfo_OK(@PathVariable("id") Integer id);<\/p>\n
@GetMapping("\/payment\/hystrix\/timeout\/{id}")
\n public String paymentInfo_Timeout(@PathVariable("id") Integer id);
\n}<\/p>\n
（6）\u7f16\u5199controller<\/p>\n
package com.hk.cloudstudy.controller;<\/p>\n
import com.hk.cloudstudy.service.PaymentHystrixService;
\nimport org.springframework.web.bind.annotation.GetMapping;
\nimport org.springframework.web.bind.annotation.PathVariable;
\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n
import javax.annotation.Resource;<\/p>\n
@RestController
\npublic class OrderHystirxController {<\/p>\n
@Resource
\n private PaymentHystrixService paymentHystrixService;<\/p>\n
@GetMapping("\/payment\/hystrix\/ok\/{id}")
\n public String paymentInfo_OK(@PathVariable("id") Integer id) {
\n return paymentHystrixService.paymentInfo_OK(id);
\n }<\/p>\n
@GetMapping("\/payment\/hystrix\/timeout\/{id}")
\n public String paymentInfo_Timeout(@PathVariable("id") Integer id) {
\n return paymentHystrixService.paymentInfo_Timeout(id);
\n }
\n}<\/p>\n
（7）\u6d4b\u8bd5<\/p>\n
\u5355\u4e00\u6d4b\u8bd5\u65f6\u6210\u529f\u7684，\u5982\u679c\u9ad8\u5e76\u53d1\u6d4b\u8bd5\u4f1a\u51fa\u73b0\u8d85\u65f6\u5f02\u5e38\u3002<\/p>\n
\u4e09\u3001\u670d\u52a1\u964d\u7ea7<\/h2>\n1\u3001\u4fee\u65398001\u670d\u52a1<\/h3>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8bbe\u7f6e\u81ea\u8eab\u8c03\u7528\u8d85\u65f6\u65f6\u95f4\u7684\u5cf0\u503c，\u5cf0\u503c\u5185\u53ef\u4ee5\u6b63\u5e38\u8fd0\u884c，\u8d85\u8fc7\u4e86\u9700\u8981\u6709\u515c\u5e95\u7684\u65b9\u6cd5\u5904\u7406，\u4f5c\u670d\u52a1\u964d\u7ea7fallback<\/p>\n
（1）\u589e\u52a0fallback<\/p>\n
\u4fee\u65398001\u670d\u52a1\u7684service<\/p>\n
package com.hk.cloudstudy.service;<\/p>\n
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
\nimport com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
\nimport org.springframework.stereotype.Service;<\/p>\n
@Service
\npublic class PaymentServicePaymentService {<\/p>\n
\/\/ \u6b63\u5e38\u5b9e\u4f8b
\n public String paymentInfo_OK(Integer id) {
\n return "\u7ebf\u7a0b\u6c60：" + Thread.currentThread().getName() + " paymentInfo_OK,id：" + id;
\n }<\/p>\n
\/\/ \u8d85\u65f6\u793a\u4f8b
\n @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler", commandProperties = {
\n @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000")
\n })
\n public String paymentInfo_TimeOut(Integer id) {
\n try {
\n Thread.sleep(3000);
\n } catch (InterruptedException e) {
\n e.printStackTrace();
\n }
\n return "\u7ebf\u7a0b\u6c60：" + Thread.currentThread().getName() + " paymentInfo_TimeOut,id：" + id;
\n }<\/p>\n
public String paymentInfo_TimeOutHandler(Integer id) {
\n return "\u8c03\u7528\u652f\u4ed8\u63a5\u53e3\u8d85\u65f6\u6216\u5f02\u5e38, \u7ebf\u7a0b\u6c60：" + Thread.currentThread().getName();
\n }
\n}<\/p>\n
\u4e00\u65e6\u8c03\u7528\u670d\u52a1\u65b9\u6cd5\u5931\u8d25\u5e76\u629b\u51fa\u4e86\u9519\u8bef\u4fe1\u606f\u540e，\u4f1a\u81ea\u52a8\u8c03\u7528@HystrixCommand\u6807\u6ce8\u597d\u7684fallbackMethod\u8c03\u7528\u7c7b\u4e2d\u7684\u6307\u5b9a\u65b9\u6cd5\u3002<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084142-696b4b46db845.png\")
<\/p>\n
（2）\u4fee\u6539\u542f\u52a8\u7c7b<\/p>\n
package com.hk.cloudstudy;<\/p>\n
import org.springframework.boot.SpringApplication;
\nimport org.springframework.boot.autoconfigure.SpringBootApplication;
\nimport org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
\nimport org.springframework.cloud.netflix.eureka.EnableEurekaClient;<\/p>\n
@SpringBootApplication
\n@EnableEurekaClient
\n@EnableCircuitBreaker \/\/ \u589e\u52a0\u6ce8\u89e3 \u6fc0\u6d3bHystrix
\npublic class PaymentHystrixMain8001 {
\n public static void main(String[] args) {
\n SpringApplication.run(PaymentHystrixMain8001.class, args);
\n }
\n} <\/p>\n
2\u3001\u4fee\u653980\u670d\u52a1<\/h3>\n
（1）\u4fee\u6539yml\u6587\u4ef6<\/p>\n
server:
\n port: 80<\/p>\n
eureka:
\n client:
\n register-with-eureka: false
\n service-url:
\n defaultZone: http:\/\/localhost:7001\/eureka\/<\/p>\n
feign:
\n hystrix:
\n enabled: true <\/p>\n
（2）\u4fee\u6539\u4e3b\u542f\u52a8\u7c7b<\/p>\n
package com.hk.cloudstudy;<\/p>\n
import org.springframework.boot.SpringApplication;
\nimport org.springframework.boot.autoconfigure.SpringBootApplication;
\nimport org.springframework.cloud.netflix.hystrix.EnableHystrix;
\nimport org.springframework.cloud.openfeign.EnableFeignClients;<\/p>\n
@SpringBootApplication
\n@EnableFeignClients
\n@EnableHystrix \/\/ \u5f00\u542fHystrix
\npublic class OrderHystrixMain80 {
\n public static void main(String[] args) {
\n SpringApplication.run(OrderHystrixMain80.class, args);
\n }
\n} <\/p>\n
（3）controller\u589e\u52a0fallback\u65b9\u6cd5<\/p>\n
package com.hk.cloudstudy.controller;<\/p>\n
import com.hk.cloudstudy.service.PaymentHystrixService;
\nimport com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
\nimport com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
\nimport org.springframework.web.bind.annotation.GetMapping;
\nimport org.springframework.web.bind.annotation.PathVariable;
\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n
import javax.annotation.Resource;<\/p>\n
@RestController
\npublic class OrderHystirxController {<\/p>\n
@Resource
\n private PaymentHystrixService paymentHystrixService;<\/p>\n
@GetMapping("\/payment\/hystrix\/ok\/{id}")
\n public String paymentInfo_OK(@PathVariable("id") Integer id) {
\n return paymentHystrixService.paymentInfo_OK(id);
\n }<\/p>\n
@GetMapping("\/payment\/hystrix\/timeout\/{id}")
\n @HystrixCommand(fallbackMethod = "paymentTimeOutFallbackMethod", commandProperties = {
\n @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000")
\n })
\n public String paymentInfo_Timeout(@PathVariable("id") Integer id) {
\n return paymentHystrixService.paymentInfo_Timeout(id);
\n }<\/p>\n
public String paymentTimeOutFallbackMethod(@PathVariable("id") Integer id){
\n return "80\u6d88\u8d39\u8005，\u5bf9\u65b9\u652f\u4ed8\u7cfb\u7edf\u7e41\u5fd9\u8bf710\u79d2\u949f\u540e\u518d\u8bd5";
\n }
\n}<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084143-696b4b479eb74.png\")
<\/p>\n
（4）\u6d4b\u8bd5<\/p>\n
\u542f\u52a87001\u30018001；\u542f\u52a880<\/p>\n
\u9ad8\u5e76\u53d1\u8bbf\u95ee http:\/\/localhost:80\/payment\/hystrix\/timeout\/1<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084144-696b4b4809782.png\")
<\/p>\n
3\u3001\u4f18\u5316<\/h3>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5982\u679c\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u52a0fallback\u65b9\u6cd5，\u4ee3\u7801\u4f1a\u975e\u5e38\u78b0\u649e；\u800c\u4e14fallback\u65b9\u6cd5\u548c\u4e1a\u52a1\u903b\u8f91\u6df7\u5408\u5728\u4e00\u8d77，\u4f7f\u4ee3\u7801\u663e\u5f97\u5f88\u6df7\u4e71\u3002<\/p>\n
（1）\u4f7f\u7528\u7edf\u4e00\u7684fallback\u65b9\u6cd5<\/p>\n
\u4f7f\u7528@DefaultProperties(defaultFallback = "")\u6ce8\u89e3，\u9664\u4e86\u4e2a\u522b\u91cd\u8981\u6838\u5fc3\u4e1a\u52a1\u6709\u4e13\u5c5e\u7684\u65b9\u6cd5，\u5176\u5b83\u666e\u901a\u7684\u53ef\u4ee5\u901a\u8fc7@DefaultProperties(defaultFallback = "")\u00a0 \u7edf\u4e00\u5904\u7406\u7ed3\u679c\u9875\u9762；\u901a\u7528\u7684\u548c\u72ec\u4eab\u7684\u5404\u81ea\u5206\u5f00，\u907f\u514d\u4e86\u4ee3\u7801\u81a8\u80c0；\u4fee\u653980\u670d\u52a1\u7684controller\u3002<\/p>\n
package com.hk.cloudstudy.controller;<\/p>\n
import com.hk.cloudstudy.service.PaymentHystrixService;
\nimport com.netflix.hystrix.contrib.javanica.annotation.DefaultProperties;
\nimport com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
\nimport com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
\nimport org.springframework.web.bind.annotation.GetMapping;
\nimport org.springframework.web.bind.annotation.PathVariable;
\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n
import javax.annotation.Resource;<\/p>\n
@RestController
\n@DefaultProperties(defaultFallback = "payment_Global_FallbackMethod")
\npublic class OrderHystirxController {<\/p>\n
@Resource
\n private PaymentHystrixService paymentHystrixService;<\/p>\n
@GetMapping("\/payment\/hystrix\/ok\/{id}")
\n public String paymentInfo_OK(@PathVariable("id") Integer id) {
\n return paymentHystrixService.paymentInfo_OK(id);
\n }<\/p>\n
@GetMapping("\/payment\/hystrix\/timeout\/{id}")
\n \/\/ \u52a0\u4e86@DefaultProperties\u5c5e\u6027\u6ce8\u89e3，\u5e76\u4e14\u6ca1\u6709\u5199\u5177\u4f53\u65b9\u6cd5\u540d\u5b57，\u5c31\u7528\u7edf\u4e00\u5168\u5c40\u7684
\n @HystrixCommand
\n public String paymentInfo_Timeout(@PathVariable("id") Integer id) {
\n String msg = paymentHystrixService.paymentInfo_Timeout(id);
\n System.out.println(msg);
\n return msg;
\n }<\/p>\n
public String payment_Global_FallbackMethod(){
\n return "80\u6d88\u8d39\u8005，\u5168\u5c40\u5904\u7406";
\n }
\n}<\/p>\n
（2）\u89e3\u8026\u4e1a\u52a1\u4ee3\u7801\u548cfallback\u65b9\u6cd5<\/p>\n
\u7f16\u5199service\u63a5\u53e3\u7684\u5b9e\u73b0<\/p>\n
package com.hk.cloudstudy.service;<\/p>\n
import org.springframework.stereotype.Component;<\/p>\n
@Component
\npublic class PaymentFallbackService implements PaymentHystrixService {
\n @Override
\n public String paymentInfo_OK(Integer id) {
\n return "paymentInfo_OK \u670d\u52a1\u8c03\u7528\u5931\u8d25";
\n }<\/p>\n
@Override
\n public String paymentInfo_Timeout(Integer id) {
\n return "paymentInfo_Timeout \u670d\u52a1\u8c03\u7528\u5931\u8d25";
\n }
\n}<\/p>\n
\u4fee\u6539service\u63a5\u53e3<\/p>\n
package com.hk.cloudstudy.service;<\/p>\n
import org.springframework.cloud.openfeign.FeignClient;
\nimport org.springframework.stereotype.Component;
\nimport org.springframework.web.bind.annotation.GetMapping;
\nimport org.springframework.web.bind.annotation.PathVariable;<\/p>\n
@Component
\n@FeignClient(value = "CLOUD-PROVIDER-HYSTRIX-PAYMENT", fallback = PaymentFallbackService.class)
\npublic interface PaymentHystrixService {<\/p>\n
@GetMapping("\/payment\/hystrix\/ok\/{id}")
\n public String paymentInfo_OK(@PathVariable("id") Integer id);<\/p>\n
@GetMapping("\/payment\/hystrix\/timeout\/{id}")
\n public String paymentInfo_Timeout(@PathVariable("id") Integer id);<\/p>\n
}<\/p>\n
\u6d4b\u8bd5：\u5173\u95ed8001\u670d\u52a1，\u518d\u6b21\u8bbf\u95ee http:\/\/localhost:80\/payment\/hystrix\/timeout\/1<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084144-696b4b482956d.png\")
<\/p>\n
\u56db\u3001\u670d\u52a1\u7194\u65ad<\/h2>\n1\u3001\u4ecb\u7ecd<\/h3>\n
\u5f53\u670d\u52a1A\u8c03\u7528\u670d\u52a1B\u7684\u5931\u8d25\u6b21\u6570\u8fbe\u5230\u4e00\u5b9a\u9608\u503c\u65f6，\u6b64\u65f6\u670d\u52a1A\u5c06\u4e0d\u518d\u8c03\u7528\u7684\u670d\u52a1B，\u800c\u662f\u5feb\u901f\u8fd4\u56de\u4e00\u4e2a\u9ed8\u8ba4\u54cd\u5e94，\u5728Spring Cloud\u6846\u67b6\u91cc，\u7194\u65ad\u673a\u5236\u901a\u8fc7Hystrix\u5b9e\u73b0\u3002Hystrix\u4f1a\u76d1\u63a7\u5fae\u670d\u52a1\u95f4\u8c03\u7528\u7684\u72b6\u51b5，\u5f53\u5931\u8d25\u7684\u8c03\u7528\u5230\u4e00\u5b9a\u9608\u503c，\u7f3a\u7701\u662f5\u79d2\u518520\u6b21\u8c03\u7528\u5931\u8d25，\u5c31\u4f1a\u542f\u52a8\u7194\u65ad\u673a\u5236\u3002\u7194\u65ad\u673a\u5236\u7684\u6ce8\u89e3\u662f@HystrixCommand\u3002<\/p>\n
2\u3001\u7194\u65ad\u7c7b\u578b<\/h3>\n\n- \u7194\u65ad\u6253\u5f00：\u8bf7\u6c42\u4e0d\u518d\u8fdb\u884c\u8c03\u7528\u5f53\u524d\u670d\u52a1，\u5185\u90e8\u8bbe\u7f6e\u65f6\u949f\u4e00\u822c\u4e3aMTTR（\u5e73\u5747\u6545\u969c\u5904\u7406\u65f6\u95f4)，\u5f53\u6253\u5f00\u65f6\u957f\u8fbe\u5230\u6240\u8bbe\u65f6\u949f\u5219\u8fdb\u5165\u534a\u7194\u65ad\u72b6\u6001<\/li>\n
- \u7194\u65ad\u5173\u95ed：\u7194\u65ad\u5173\u95ed\u4e0d\u4f1a\u5bf9\u670d\u52a1\u8fdb\u884c\u7194\u65ad，\u5f00\u59cb\u8c03\u7528\u4e0b\u6e38\u670d\u52a1<\/li>\n
- \u7194\u65ad\u534a\u5f00：\u90e8\u5206\u8bf7\u6c42\u6839\u636e\u89c4\u5219\u8c03\u7528\u5f53\u524d\u670d\u52a1，\u5982\u679c\u8bf7\u6c42\u6210\u529f\u4e14\u7b26\u5408\u89c4\u5219\u5219\u8ba4\u4e3a\u5f53\u524d\u670d\u52a1\u6062\u590d\u6b63\u5e38，\u5173\u95ed\u7194\u65ad<\/li>\n<\/ul>\n
3\u3001\u4fee\u65398001\u670d\u52a1<\/h3>\n
（1）\u4fee\u6539PaymentService<\/p>\n
\u589e\u52a0paymentCircuitBreaker\u65b9\u6cd5<\/p>\n
\/\/ \u670d\u52a1\u7194\u65ad
\n @HystrixCommand(
\n fallbackMethod = "paymentCircuitBreaker_fallback",
\n commandProperties = {
\n @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),
\n @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),
\n @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),
\n @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")
\n }
\n )
\n public String paymentCircuitBreaker(Integer id) {
\n if (id < 0) {
\n throw new RuntimeException("id\u4e0d\u53ef\u4ee5\u5c0f\u4e8e0…");
\n }<\/p>\n
String n = UUID.fastUUID().toString();<\/p>\n
return "\u6210\u529f===" + n;
\n }<\/p>\n
public String paymentCircuitBreaker_fallback(Integer id) {
\n return "id\u4e0d\u53ef\u4ee5\u5c0f\u4e8e0, \u8bf7\u4f20\u5165\u6b63\u786e\u7684\u6570\u636e： " + id;
\n } <\/p>\n
\u53c2\u6570\u8bf4\u660e：<\/p>\n
\n- enabled：\u5f00\u542f\u65ad\u8def\u5668<\/li>\n
- requestVolumeThreshold：\u00a0\u8bf7\u6c42\u603b\u6570\u9600\u503c，\u5728\u5feb\u7167\u65f6\u95f4\u7a97\u5185，\u5fc5\u987b\u6ee1\u8db3\u8bf7\u6c42\u603b\u6570\u9600\u503c\u624d\u6709\u8d44\u683c\u7194\u65ad\u3002\u9ed8\u8ba4\u4e3a20，\u610f\u5473\u7740\u572810\u79d2\u5185，\u5982\u679c\u8be5hystrix\u547d\u4ee4\u7684\u8c03\u7528\u6b21\u6570\u4e0d\u8db320\u6b21，\u5373\u4f7f\u6240\u6709\u7684\u8bf7\u6c42\u90fd\u8d85\u65f6\u6216\u5176\u4ed6\u539f\u56e0\u5931\u8d25，\u65ad\u8def\u5668\u90fd\u4e0d\u4f1a\u6253\u5f00\u3002<\/li>\n
- sleepWindowInMilliseconds：\u65f6\u95f4\u7a97\u53e3<\/li>\n
- errorThresholdPercentage：\u9519\u8bef\u767e\u5206\u6bd4\u9600\u503c，\u5f53\u8bf7\u6c42\u603b\u6570\u5728\u5feb\u7167\u65f6\u95f4\u7a97\u5185\u8d85\u8fc7\u4e86\u9600\u503c，\u6bd4\u5982\u53d1\u751f\u4e8630\u6b21\u8c03\u7528，\u5982\u679c\u5728\u8fd930\u6b21\u8c03\u7528\u4e2d，\u670915\u6b21\u53d1\u751f\u4e86\u8d85\u65f6\u5f02\u5e38，\u4e5f\u5c31\u662f\u8d85\u8fc750%\u7684\u9519\u8bef\u767e\u5206\u6bd4，\u5728\u9ed8\u8ba4\u8bbe\u5b9a50%\u9600\u503c\u60c5\u51b5\u4e0b，\u8fd9\u65f6\u5019\u5c31\u4f1a\u5c06\u65ad\u8def\u5668\u6253\u5f00\u3002<\/li>\n<\/ul>\n
（2）\u4fee\u6539controller<\/p>\n
@GetMapping("\/payment\/circuit\/{id}")
\n public String paymentCircuitBreaker(@PathVariable Integer id) {
\n return paymentService.paymentCircuitBreaker(id);
\n } <\/p>\n
（3）\u6d4b\u8bd5<\/p>\n
\u591a\u6b21\u70b9\u51fb\u5931\u8d25：\u4f8b\u598210\u79d2\u51856\u6b21\u5931\u8d25，4\u6b21\u6210\u529f，\u518d\u70b9\u51fb\u4e0b\u4e00\u6b21\u65f6\u4f1a\u89e6\u53d1\u7194\u65ad<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084144-696b4b485a383.png\")
<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084144-696b4b4889da6.png\")
<\/p>\n
\u7b49\u8fc7\u4e00\u4f1a\u518d\u6b21\u70b9\u51fb\u4f1a\u6210\u529f<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084144-696b4b48bfc9d.png\")
<\/p>\n
4\u3001\u603b\u7ed3<\/h3>\n
\u65ad\u8def\u5668\u5f00\u542f\u6216\u8005\u5173\u95ed\u7684\u6761\u4ef6：<\/p>\n
\n- \u5f53\u6ee1\u8db3\u4e00\u5b9a\u7684\u9600\u503c\u7684\u65f6\u5019（\u9ed8\u8ba410\u79d2\u5185\u8d85\u8fc720\u4e2a\u8bf7\u6c42\u6b21\u6570）<\/li>\n
- \u5f53\u5931\u8d25\u7387\u8fbe\u5230\u4e00\u5b9a\u7684\u65f6\u5019（\u9ed8\u8ba410\u79d2\u5185\u8d85\u8fc750%\u7684\u8bf7\u6c42\u5931\u8d25）<\/li>\n<\/ul>\n
\u5230\u8fbe\u4ee5\u4e0a\u9600\u503c，\u65ad\u8def\u5668\u5c06\u4f1a\u5f00\u542f<\/p>\n
\u5f53\u5f00\u542f\u7684\u65f6\u5019，\u6240\u6709\u8bf7\u6c42\u90fd\u4e0d\u4f1a\u8fdb\u884c\u8f6c\u53d1；\u4e00\u6bb5\u65f6\u95f4\u4e4b\u540e（\u9ed8\u8ba4\u662f5\u79d2），\u8fd9\u4e2a\u65f6\u5019\u65ad\u8def\u5668\u662f\u534a\u5f00\u72b6\u6001，\u4f1a\u8ba9\u5176\u4e2d\u4e00\u4e2a\u8bf7\u6c42\u8fdb\u884c\u8f6c\u53d1\u3002\u5982\u679c\u6210\u529f，\u65ad\u8def\u5668\u4f1a\u5173\u95ed，\u82e5\u5931\u8d25，\u7ee7\u7eed\u5f00\u542f\u3002<\/p>\n
5\u3001\u53c2\u6570\u8bf4\u660e<\/h3>\n
commandProperties = {
\n \/\/ \u8bbe\u7f6e\u9694\u79bb\u7b56\u7565，THREAD \u8868\u793a\u7ebf\u7a0b\u6c60 SEMAPHORE：\u4fe1\u53f7\u6c60\u9694\u79bb
\n @HystrixProperty(name = "execution.isolation.strategy", value = "THREAD"),
\n \/\/ \u5f53\u9694\u79bb\u7b56\u7565\u9009\u62e9\u4fe1\u53f7\u6c60\u9694\u79bb\u7684\u65f6\u5019，\u7528\u6765\u8bbe\u7f6e\u4fe1\u53f7\u6c60\u7684\u5927\u5c0f（\u6700\u5927\u5e76\u53d1\u6570）
\n @HystrixProperty(name = "execution.isolation.semaphore.maxConcurrentRequests", value = "10"),
\n \/\/ \u914d\u7f6e\u547d\u4ee4\u6267\u884c\u7684\u8d85\u65f6\u65f6\u95f4
\n @HystrixProperty(name = "execution.isolation.thread.timeoutinMilliseconds", value = "10"),
\n \/\/ \u662f\u5426\u542f\u7528\u8d85\u65f6\u65f6\u95f4
\n @HystrixProperty(name = "execution.timeout.enabled", value = "true"),
\n \/\/ \u6267\u884c\u8d85\u65f6\u7684\u65f6\u5019\u662f\u5426\u4e2d\u65ad
\n @HystrixProperty(name = "execution.isolation.thread.interruptOnTimeout", value = "true"),
\n \/\/ \u6267\u884c\u88ab\u53d6\u6d88\u7684\u65f6\u5019\u662f\u5426\u4e2d\u65ad
\n @HystrixProperty(name = "execution.isolation.thread.interruptOnCancel", value = "true"),
\n \/\/ \u5141\u8bb8\u56de\u8c03\u65b9\u6cd5\u6267\u884c\u7684\u6700\u5927\u5e76\u53d1\u6570
\n @HystrixProperty(name = "fallback.isolation.semaphore.maxConcurrentRequests", value = "10"),
\n \/\/ \u670d\u52a1\u964d\u7ea7\u662f\u5426\u542f\u7528，\u662f\u5426\u6267\u884c\u56de\u8c03\u51fd\u6570
\n @HystrixProperty(name = "fallback.enabled", value = "true"),
\n \/\/ \u662f\u5426\u542f\u7528\u65ad\u8def\u5668
\n @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u4e2d，\u65ad\u8def\u5668\u7194\u65ad\u7684\u6700\u5c0f\u8bf7\u6c42\u6570\u3002\u4f8b\u5982，\u9ed8\u8ba4\u8be5\u503c\u4e3a 20 \u7684\u65f6\u5019，
\n \/\/ \u5982\u679c\u6eda\u52a8\u65f6\u95f4\u7a97（\u9ed8\u8ba410\u79d2）\u5185\u4ec5\u6536\u5230\u4e8619\u4e2a\u8bf7\u6c42， \u5373\u4f7f\u8fd919\u4e2a\u8bf7\u6c42\u90fd\u5931\u8d25\u4e86，\u65ad\u8def\u5668\u4e5f\u4e0d\u4f1a\u6253\u5f00\u3002
\n @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "20"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u4e2d，\u8868\u793a\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u4e2d，\u5728\u8bf7\u6c42\u6570\u91cf\u8d85\u8fc7
\n \/\/ circuitBreaker.requestVolumeThreshold \u7684\u60c5\u51b5\u4e0b，\u5982\u679c\u9519\u8bef\u8bf7\u6c42\u6570\u7684\u767e\u5206\u6bd4\u8d85\u8fc750,
\n \/\/ \u5c31\u628a\u65ad\u8def\u5668\u8bbe\u7f6e\u4e3a "\u6253\u5f00" \u72b6\u6001，\u5426\u5219\u5c31\u8bbe\u7f6e\u4e3a "\u5173\u95ed" \u72b6\u6001\u3002
\n @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "50"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5f53\u65ad\u8def\u5668\u6253\u5f00\u4e4b\u540e\u7684\u4f11\u7720\u65f6\u95f4\u7a97\u3002 \u4f11\u7720\u65f6\u95f4\u7a97\u7ed3\u675f\u4e4b\u540e，
\n \/\/ \u4f1a\u5c06\u65ad\u8def\u5668\u7f6e\u4e3a "\u534a\u5f00" \u72b6\u6001，\u5c1d\u8bd5\u7194\u65ad\u7684\u8bf7\u6c42\u547d\u4ee4，\u5982\u679c\u4f9d\u7136\u5931\u8d25\u5c31\u5c06\u65ad\u8def\u5668\u7ee7\u7eed\u8bbe\u7f6e\u4e3a "\u6253\u5f00" \u72b6\u6001，
\n \/\/ \u5982\u679c\u6210\u529f\u5c31\u8bbe\u7f6e\u4e3a "\u5173\u95ed" \u72b6\u6001\u3002
\n @HystrixProperty(name = "circuitBreaker.sleepWindowinMilliseconds", value = "5000"),
\n \/\/ \u65ad\u8def\u5668\u5f3a\u5236\u6253\u5f00
\n @HystrixProperty(name = "circuitBreaker.forceOpen", value = "false"),
\n \/\/ \u65ad\u8def\u5668\u5f3a\u5236\u5173\u95ed
\n @HystrixProperty(name = "circuitBreaker.forceClosed", value = "false"),
\n \/\/ \u6eda\u52a8\u65f6\u95f4\u7a97\u8bbe\u7f6e，\u8be5\u65f6\u95f4\u7528\u4e8e\u65ad\u8def\u5668\u5224\u65ad\u5065\u5eb7\u5ea6\u65f6\u9700\u8981\u6536\u96c6\u4fe1\u606f\u7684\u6301\u7eed\u65f6\u95f4
\n @HystrixProperty(name = "metrics.rollingStats.timeinMilliseconds", value = "10000"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u6eda\u52a8\u65f6\u95f4\u7a97\u7edf\u8ba1\u6307\u6807\u4fe1\u606f\u65f6\u5212\u5206"\u6876"\u7684\u6570\u91cf，\u65ad\u8def\u5668\u5728\u6536\u96c6\u6307\u6807\u4fe1\u606f\u7684\u65f6\u5019\u4f1a\u6839\u636e
\n \/\/ \u8bbe\u7f6e\u7684\u65f6\u95f4\u7a97\u957f\u5ea6\u62c6\u5206\u6210\u591a\u4e2a "\u6876" \u6765\u7d2f\u8ba1\u5404\u5ea6\u91cf\u503c，\u6bcf\u4e2a"\u6876"\u8bb0\u5f55\u4e86\u4e00\u6bb5\u65f6\u95f4\u5185\u7684\u91c7\u96c6\u6307\u6807\u3002
\n \/\/ \u6bd4\u5982 10 \u79d2\u5185\u62c6\u5206\u6210 10 \u4e2a"\u6876"\u6536\u96c6\u8fd9\u6837，\u6240\u4ee5 timeinMilliseconds \u5fc5\u987b\u80fd\u88ab numBuckets \u6574\u9664\u3002\u5426\u5219\u4f1a\u629b\u5f02\u5e38
\n @HystrixProperty(name = "metrics.rollingStats.numBuckets", value = "10"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5bf9\u547d\u4ee4\u6267\u884c\u7684\u5ef6\u8fdf\u662f\u5426\u4f7f\u7528\u767e\u5206\u4f4d\u6570\u6765\u8ddf\u8e2a\u548c\u8ba1\u7b97\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a false, \u90a3\u4e48\u6240\u6709\u7684\u6982\u8981\u7edf\u8ba1\u90fd\u5c06\u8fd4\u56de -1\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.enabled", value = "false"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u767e\u5206\u4f4d\u7edf\u8ba1\u7684\u6eda\u52a8\u7a97\u53e3\u7684\u6301\u7eed\u65f6\u95f4，\u5355\u4f4d\u4e3a\u6beb\u79d2\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.timeInMilliseconds", value = "60000"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u767e\u5206\u4f4d\u7edf\u8ba1\u6eda\u52a8\u7a97\u53e3\u4e2d\u4f7f\u7528 \u201c \u6876 \u201d\u7684\u6570\u91cf\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.numBuckets", value = "60000"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u6bcf\u4e2a \u201c\u6876\u201d \u4e2d\u4fdd\u7559\u7684\u6700\u5927\u6267\u884c\u6b21\u6570\u3002\u5982\u679c\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u5185\u53d1\u751f\u8d85\u8fc7\u8be5\u8bbe\u5b9a\u503c\u7684\u6267\u884c\u6b21\u6570，
\n \/\/ \u5c31\u4ece\u6700\u521d\u7684\u4f4d\u7f6e\u5f00\u59cb\u91cd\u5199\u3002\u4f8b\u5982，\u5c06\u8be5\u503c\u8bbe\u7f6e\u4e3a100, \u6eda\u52a8\u7a97\u53e3\u4e3a10\u79d2，\u82e5\u572810\u79d2\u5185\u4e00\u4e2a \u201c\u6876 \u201d\u4e2d\u53d1\u751f\u4e86500\u6b21\u6267\u884c，
\n \/\/ \u90a3\u4e48\u8be5 \u201c\u6876\u201d \u4e2d\u53ea\u4fdd\u7559 \u6700\u540e\u7684100\u6b21\u6267\u884c\u7684\u7edf\u8ba1\u3002\u53e6\u5916，\u589e\u52a0\u8be5\u503c\u7684\u5927\u5c0f\u5c06\u4f1a\u589e\u52a0\u5185\u5b58\u91cf\u7684\u6d88\u8017，\u5e76\u589e\u52a0\u6392\u5e8f\u767e\u5206\u4f4d\u6570\u6240\u9700\u7684\u8ba1\u7b97\u65f6\u95f4\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.bucketSize", value = "100"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u91c7\u96c6\u5f71\u54cd\u65ad\u8def\u5668\u72b6\u6001\u7684\u5065\u5eb7\u5feb\u7167（\u8bf7\u6c42\u7684\u6210\u529f\u3001 \u9519\u8bef\u767e\u5206\u6bd4）\u7684\u95f4\u9694\u7b49\u5f85\u65f6\u95f4\u3002
\n @HystrixProperty(name = "metrics.healthSnapshot.intervalinMilliseconds", value = "500"),
\n \/\/ \u662f\u5426\u5f00\u542f\u8bf7\u6c42\u7f13\u5b58
\n @HystrixProperty(name = "requestCache.enabled", value = "true"),
\n \/\/ HystrixCommand\u7684\u6267\u884c\u548c\u4e8b\u4ef6\u662f\u5426\u6253\u5370\u65e5\u5fd7\u5230 HystrixRequestLog \u4e2d
\n @HystrixProperty(name = "requestLog.enabled", value = "true"),
\n },
\n threadPoolProperties = {
\n \/\/ \u8be5\u53c2\u6570\u7528\u6765\u8bbe\u7f6e\u6267\u884c\u547d\u4ee4\u7ebf\u7a0b\u6c60\u7684\u6838\u5fc3\u7ebf\u7a0b\u6570，\u8be5\u503c\u4e5f\u5c31\u662f\u547d\u4ee4\u6267\u884c\u7684\u6700\u5927\u5e76\u53d1\u91cf
\n @HystrixProperty(name = "coreSize", value = "10"),
\n \/\/ \u8be5\u53c2\u6570\u7528\u6765\u8bbe\u7f6e\u7ebf\u7a0b\u6c60\u7684\u6700\u5927\u961f\u5217\u5927\u5c0f\u3002\u5f53\u8bbe\u7f6e\u4e3a -1 \u65f6，\u7ebf\u7a0b\u6c60\u5c06\u4f7f\u7528 SynchronousQueue \u5b9e\u73b0\u7684\u961f\u5217，
\n \/\/ \u5426\u5219\u5c06\u4f7f\u7528 LinkedBlockingQueue \u5b9e\u73b0\u7684\u961f\u5217\u3002
\n @HystrixProperty(name = "maxQueueSize", value = "-1"),
\n \/\/ \u8be5\u53c2\u6570\u7528\u6765\u4e3a\u961f\u5217\u8bbe\u7f6e\u62d2\u7edd\u9608\u503c\u3002 \u901a\u8fc7\u8be5\u53c2\u6570， \u5373\u4f7f\u961f\u5217\u6ca1\u6709\u8fbe\u5230\u6700\u5927\u503c\u4e5f\u80fd\u62d2\u7edd\u8bf7\u6c42\u3002
\n \/\/ \u8be5\u53c2\u6570\u4e3b\u8981\u662f\u5bf9 LinkedBlockingQueue \u961f\u5217\u7684\u8865\u5145,\u56e0\u4e3a LinkedBlockingQueue
\n \/\/ \u961f\u5217\u4e0d\u80fd\u52a8\u6001\u4fee\u6539\u5b83\u7684\u5bf9\u8c61\u5927\u5c0f，\u800c\u901a\u8fc7\u8be5\u5c5e\u6027\u5c31\u53ef\u4ee5\u8c03\u6574\u62d2\u7edd\u8bf7\u6c42\u7684\u961f\u5217\u5927\u5c0f\u4e86\u3002
\n @HystrixProperty(name = "queueSizeRejectionThreshold", value = "5"), <\/p>\n
\u4e94\u3001\u670d\u52a1\u76d1\u63a7<\/h2>\n1\u3001\u4ecb\u7ecd<\/h3>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Hystrix\u4f9b\u4e86\u51c6\u5b9e\u65f6\u7684\u8c03\u7528\u76d1\u63a7（Hystrix Dashboard），Hystrix\u4f1a\u6301\u7eed\u5730\u8bb0\u5f55\u6240\u6709\u901a\u8fc7Hystrix\u53d1\u8d77\u7684\u8bf7\u6c42\u7684\u6267\u884c\u4fe1\u606f，\u5e76\u4ee5\u7edf\u8ba1\u62a5\u8868\u548c\u56fe\u5f62\u7684\u5f62\u5f0f\u5c55\u793a\u7ed9\u7528\u6237，\u5305\u62ec\u6bcf\u79d2\u6267\u884c\u591a\u5c11\u8bf7\u6c42\u591a\u5c11\u6210\u529f，\u591a\u5c11\u5931\u8d25\u7b49\u3002Netflix\u901a\u8fc7hystrix-metrics-event-stream\u9879\u76ee\u5b9e\u73b0\u4e86\u5bf9\u4ee5\u4e0a\u6307\u6807\u7684\u76d1\u63a7\u3002Spring Cloud\u4e5f\u63d0\u4f9b\u4e86Hystrix Dashboard\u7684\u6574\u5408，\u5bf9\u76d1\u63a7\u5185\u5bb9\u8f6c\u5316\u6210\u53ef\u89c6\u5316\u754c\u9762\u3002<\/p>\n
2\u3001\u521b\u5efa\u76d1\u63a7\u6a21\u57579001<\/h3>\n
（1）\u65b0\u5efa\u6a21\u5757<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084144-696b4b48e0bcc.png\")
<\/p>\n
（2）\u4fee\u6539pom\u6587\u4ef6<\/p>\n
<?xml version="1.0" encoding="UTF-8"?>
\n<project xmlns="http:\/\/maven.apache.org\/POM\/4.0.0"
\n xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance"
\n xsi:schemaLocation="http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd">
\n <modelVersion>4.0.0<\/modelVersion>
\n <parent>
\n <groupId>com.hk.cloudstudy<\/groupId>
\n <artifactId>SecondSpringCloud<\/artifactId>
\n <version>1.0-SNAPSHOT<\/version>
\n <\/parent><\/p>\n
<groupId>com.hk<\/groupId>
\n <artifactId>cloud-consumer-hystrix-dashboard9001<\/artifactId><\/p>\n
<properties>
\n <maven.compiler.source>8<\/maven.compiler.source>
\n <maven.compiler.target>8<\/maven.compiler.target>
\n <project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>
\n <\/properties><\/p>\n
<dependencies>
\n <dependency>
\n <groupId>org.springframework.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-netflix-hystrix-dashboard<\/artifactId>
\n <\/dependency>
\n <dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-actuator<\/artifactId>
\n <\/dependency><\/p>\n
<dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-devtools<\/artifactId>
\n <scope>runtime<\/scope>
\n <optional>true<\/optional>
\n <\/dependency>
\n <dependency>
\n <groupId>org.projectlombok<\/groupId>
\n <artifactId>lombok<\/artifactId>
\n <optional>true<\/optional>
\n <\/dependency>
\n <dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-test<\/artifactId>
\n <scope>test<\/scope>
\n <\/dependency>
\n <\/dependencies><\/p>\n
<\/project> <\/p>\n
（3）\u6dfb\u52a0\u914d\u7f6e\u6587\u4ef6<\/p>\n
server:
\n port: 9001 <\/p>\n
（4）\u6dfb\u52a0\u542f\u52a8\u7c7b<\/p>\n
@SpringBootApplication
\n@EnableHystrixDashboard
\npublic class Main {
\n public static void main(String[] args) {
\n SpringApplication.run(Main.class, args);
\n }
\n} <\/p>\n
3\u3001\u4fee\u65398001\u670d\u52a1<\/h3>\n
（1）\u4fee\u6539pom\u6587\u4ef6<\/p>\n
\u6dfb\u52a0\u5750\u6807<\/p>\n
<!– actuator\u76d1\u63a7\u4fe1\u606f\u5b8c\u5584 –>
\n<dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-actuator<\/artifactId>
\n<\/dependency> <\/p>\n
（2）\u4fee\u6539\u542f\u52a8\u7c7b<\/p>\n
@SpringBootApplication
\n@EnableEurekaClient
\n@EnableCircuitBreaker \/\/ \u589e\u52a0\u6ce8\u89e3 \u6fc0\u6d3bHystrix
\npublic class PaymentHystrixMain8001 {
\n public static void main(String[] args) {
\n SpringApplication.run(PaymentHystrixMain8001.class, args);
\n }<\/p>\n
\/**
\n *\u6b64\u914d\u7f6e\u662f\u4e3a\u4e86\u670d\u52a1\u76d1\u63a7\u800c\u914d\u7f6e，\u4e0e\u670d\u52a1\u5bb9\u9519\u672c\u8eab\u65e0\u5173，springcloud\u5347\u7ea7\u540e\u7684\u5751
\n *ServletRegistrationBean\u56e0\u4e3aspringboot\u7684\u9ed8\u8ba4\u8def\u5f84\u4e0d\u662f"\/hystrix.stream"，
\n *\u53ea\u8981\u5728\u81ea\u5df1\u7684\u9879\u76ee\u91cc\u914d\u7f6e\u4e0a\u4e0b\u9762\u7684servlet\u5c31\u53ef\u4ee5\u4e86
\n *\/
\n @Bean
\n public ServletRegistrationBean getServlet() {
\n HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
\n ServletRegistrationBean<HystrixMetricsStreamServlet> registrationBean = new ServletRegistrationBean<>(streamServlet);
\n registrationBean.setLoadOnStartup(1);
\n registrationBean.addUrlMappings("\/hystrix.stream");
\n registrationBean.setName("HystrixMetricsStreamServlet");
\n return registrationBean;
\n }
\n } <\/p>\n
4\u3001\u6d4b\u8bd5<\/h3>\n
（1）\u586b\u5199\u76d1\u63a7\u5730\u5740<\/p>\n
\u8bbf\u95ee：localhost:9001\/hystrix<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084144-696b4b48f3da3.png\")
<\/p>\n
（2）\u89e6\u53d1\u65ad\u8def<\/p>\n
\u8bbf\u95ee：localhost:8001\/payment\/circuit\/10<\/p>\n
\u8bbf\u95ee：localhost:8001\/payment\/circuit\/-10<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084145-696b4b49b1e44.png\")
<\/p>\n
\u591a\u5931\u8d25\u51e0\u6b21<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084145-696b4b49d2d62.png\")
<\/p>\n
（3）\u56fe\u5f62\u8bf4\u660e<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084145-696b4b49eb7ad.png\")
<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084146-696b4b4a27105.png\")
<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
\u76ee\u5f55
\n\u4e00\u3001\u4ecb\u7ecd
\n\u4e8c\u3001\u6848\u4f8b
\n1\u3001\u6784\u5efa8001\u670d\u52a1
\n2\u3001\u6784\u5efa80\u670d\u52a1
\n\u4e09\u3001\u670d\u52a1\u964d\u7ea7
\n1\u3001\u4fee\u65398001\u670d\u52a1
\n2\u3001\u4fee\u653980\u670d\u52a1
\n3\u3001\u4f18\u5316
\n\u56db\u3001\u670d\u52a1\u7194\u65ad
\n1\u3001\u4ecb\u7ecd
\n2\u3001\u7194\u65ad\u7c7b\u578b
\n3\u3001\u4fee\u65398001\u670d\u52a1
\n4\u3001\u603b\u7ed3
\n5\u3001\u53c2\u6570\u8bf4\u660e
\n\u4e94\u3001\u670d\u52a1\u76d1\u63a7
\n1\u3001\u4ecb\u7ecd
\n2\u3001\u521b\u5efa\u76d1\u63a7\u6a21\u57579001
\n3\u3001\u4fee\u65398001\u670d\u52a1
\n4\u3001\u6d4b\u8bd5 \u4e00\u3001\u4ecb\u7ecd
\n（1）\u6982\u8ff0 Hystrix\u662f\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u5ef6\u8fdf\u548c\u5bb9\u9519\u7684\u5f00\u6e90\u5e93，\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u91cc&#x<\/p>\n","protected":false},"author":2,"featured_media":61428,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[6494,101,963],"topic":[],"class_list":["post-61445","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-hystrix","tag-spring","tag-spring-cloud"],"yoast_head":"\n
\uff08\u7b2c\u4e03\u7bc7\uff09spring cloud\u4e4bHystrix\u65ad\u8def\u5668 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/61445.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\uff08\u7b2c\u4e03\u7bc7\uff09spring cloud\u4e4bHystrix\u65ad\u8def\u5668 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u76ee\u5f55 \u4e00\u3001\u4ecb\u7ecd \u4e8c\u3001\u6848\u4f8b 1\u3001\u6784\u5efa8001\u670d\u52a1 2\u3001\u6784\u5efa80\u670d\u52a1 \u4e09\u3001\u670d\u52a1\u964d\u7ea7 1\u3001\u4fee\u65398001\u670d\u52a1 2\u3001\u4fee\u653980\u670d\u52a1 3\u3001\u4f18\u5316 \u56db\u3001\u670d\u52a1\u7194\u65ad 1\u3001\u4ecb\u7ecd 2\u3001\u7194\u65ad\u7c7b\u578b 3\u3001\u4fee\u65398001\u670d\u52a1 4\u3001\u603b\u7ed3 5\u3001\u53c2\u6570\u8bf4\u660e \u4e94\u3001\u670d\u52a1\u76d1\u63a7 1\u3001\u4ecb\u7ecd 2\u3001\u521b\u5efa\u76d1\u63a7\u6a21\u57579001 3\u3001\u4fee\u65398001\u670d\u52a1 4\u3001\u6d4b\u8bd5 \u4e00\u3001\u4ecb\u7ecd （1）\u6982\u8ff0 Hystrix\u662f\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u5ef6\u8fdf\u548c\u5bb9\u9519\u7684\u5f00\u6e90\u5e93，\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u91cc&#x\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/61445.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-17T08:41:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260117084141-696b4b45daed7.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"13 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/61445.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/61445.html\",\"name\":\"\uff08\u7b2c\u4e03\u7bc7\uff09spring cloud\u4e4bHystrix\u65ad\u8def\u5668 - 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3\u3001\u4fee\u65398001\u670d\u52a1<\/h3>\n
（1）\u4fee\u6539PaymentService<\/p>\n
\u589e\u52a0paymentCircuitBreaker\u65b9\u6cd5<\/p>\n
\/\/ \u670d\u52a1\u7194\u65ad
\n @HystrixCommand(
\n fallbackMethod = "paymentCircuitBreaker_fallback",
\n commandProperties = {
\n @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),
\n @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),
\n @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),
\n @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")
\n }
\n )
\n public String paymentCircuitBreaker(Integer id) {
\n if (id < 0) {
\n throw new RuntimeException("id\u4e0d\u53ef\u4ee5\u5c0f\u4e8e0…");
\n }<\/p>\n
String n = UUID.fastUUID().toString();<\/p>\n
return "\u6210\u529f===" + n;
\n }<\/p>\n
public String paymentCircuitBreaker_fallback(Integer id) {
\n return "id\u4e0d\u53ef\u4ee5\u5c0f\u4e8e0, \u8bf7\u4f20\u5165\u6b63\u786e\u7684\u6570\u636e： " + id;
\n } <\/p>\n
\u53c2\u6570\u8bf4\u660e：<\/p>\n
- \n
- enabled：\u5f00\u542f\u65ad\u8def\u5668<\/li>\n
- requestVolumeThreshold：\u00a0\u8bf7\u6c42\u603b\u6570\u9600\u503c，\u5728\u5feb\u7167\u65f6\u95f4\u7a97\u5185，\u5fc5\u987b\u6ee1\u8db3\u8bf7\u6c42\u603b\u6570\u9600\u503c\u624d\u6709\u8d44\u683c\u7194\u65ad\u3002\u9ed8\u8ba4\u4e3a20，\u610f\u5473\u7740\u572810\u79d2\u5185，\u5982\u679c\u8be5hystrix\u547d\u4ee4\u7684\u8c03\u7528\u6b21\u6570\u4e0d\u8db320\u6b21，\u5373\u4f7f\u6240\u6709\u7684\u8bf7\u6c42\u90fd\u8d85\u65f6\u6216\u5176\u4ed6\u539f\u56e0\u5931\u8d25，\u65ad\u8def\u5668\u90fd\u4e0d\u4f1a\u6253\u5f00\u3002<\/li>\n
- sleepWindowInMilliseconds：\u65f6\u95f4\u7a97\u53e3<\/li>\n
- errorThresholdPercentage：\u9519\u8bef\u767e\u5206\u6bd4\u9600\u503c，\u5f53\u8bf7\u6c42\u603b\u6570\u5728\u5feb\u7167\u65f6\u95f4\u7a97\u5185\u8d85\u8fc7\u4e86\u9600\u503c，\u6bd4\u5982\u53d1\u751f\u4e8630\u6b21\u8c03\u7528，\u5982\u679c\u5728\u8fd930\u6b21\u8c03\u7528\u4e2d，\u670915\u6b21\u53d1\u751f\u4e86\u8d85\u65f6\u5f02\u5e38，\u4e5f\u5c31\u662f\u8d85\u8fc750%\u7684\u9519\u8bef\u767e\u5206\u6bd4，\u5728\u9ed8\u8ba4\u8bbe\u5b9a50%\u9600\u503c\u60c5\u51b5\u4e0b，\u8fd9\u65f6\u5019\u5c31\u4f1a\u5c06\u65ad\u8def\u5668\u6253\u5f00\u3002<\/li>\n<\/ul>\n
（2）\u4fee\u6539controller<\/p>\n
@GetMapping("\/payment\/circuit\/{id}")
\n public String paymentCircuitBreaker(@PathVariable Integer id) {
\n return paymentService.paymentCircuitBreaker(id);
\n } <\/p>\n（3）\u6d4b\u8bd5<\/p>\n
\u591a\u6b21\u70b9\u51fb\u5931\u8d25：\u4f8b\u598210\u79d2\u51856\u6b21\u5931\u8d25，4\u6b21\u6210\u529f，\u518d\u70b9\u51fb\u4e0b\u4e00\u6b21\u65f6\u4f1a\u89e6\u53d1\u7194\u65ad<\/p>\n
<\/p>\n<\/p>\n\u7b49\u8fc7\u4e00\u4f1a\u518d\u6b21\u70b9\u51fb\u4f1a\u6210\u529f<\/p>\n
<\/p>\n4\u3001\u603b\u7ed3<\/h3>\n
\u65ad\u8def\u5668\u5f00\u542f\u6216\u8005\u5173\u95ed\u7684\u6761\u4ef6：<\/p>\n
- \n
- \u5f53\u6ee1\u8db3\u4e00\u5b9a\u7684\u9600\u503c\u7684\u65f6\u5019（\u9ed8\u8ba410\u79d2\u5185\u8d85\u8fc720\u4e2a\u8bf7\u6c42\u6b21\u6570）<\/li>\n
- \u5f53\u5931\u8d25\u7387\u8fbe\u5230\u4e00\u5b9a\u7684\u65f6\u5019（\u9ed8\u8ba410\u79d2\u5185\u8d85\u8fc750%\u7684\u8bf7\u6c42\u5931\u8d25）<\/li>\n<\/ul>\n
\u5230\u8fbe\u4ee5\u4e0a\u9600\u503c，\u65ad\u8def\u5668\u5c06\u4f1a\u5f00\u542f<\/p>\n
\u5f53\u5f00\u542f\u7684\u65f6\u5019，\u6240\u6709\u8bf7\u6c42\u90fd\u4e0d\u4f1a\u8fdb\u884c\u8f6c\u53d1；\u4e00\u6bb5\u65f6\u95f4\u4e4b\u540e（\u9ed8\u8ba4\u662f5\u79d2），\u8fd9\u4e2a\u65f6\u5019\u65ad\u8def\u5668\u662f\u534a\u5f00\u72b6\u6001，\u4f1a\u8ba9\u5176\u4e2d\u4e00\u4e2a\u8bf7\u6c42\u8fdb\u884c\u8f6c\u53d1\u3002\u5982\u679c\u6210\u529f，\u65ad\u8def\u5668\u4f1a\u5173\u95ed，\u82e5\u5931\u8d25，\u7ee7\u7eed\u5f00\u542f\u3002<\/p>\n
5\u3001\u53c2\u6570\u8bf4\u660e<\/h3>\n
commandProperties = {
\n \/\/ \u8bbe\u7f6e\u9694\u79bb\u7b56\u7565，THREAD \u8868\u793a\u7ebf\u7a0b\u6c60 SEMAPHORE：\u4fe1\u53f7\u6c60\u9694\u79bb
\n @HystrixProperty(name = "execution.isolation.strategy", value = "THREAD"),
\n \/\/ \u5f53\u9694\u79bb\u7b56\u7565\u9009\u62e9\u4fe1\u53f7\u6c60\u9694\u79bb\u7684\u65f6\u5019，\u7528\u6765\u8bbe\u7f6e\u4fe1\u53f7\u6c60\u7684\u5927\u5c0f（\u6700\u5927\u5e76\u53d1\u6570）
\n @HystrixProperty(name = "execution.isolation.semaphore.maxConcurrentRequests", value = "10"),
\n \/\/ \u914d\u7f6e\u547d\u4ee4\u6267\u884c\u7684\u8d85\u65f6\u65f6\u95f4
\n @HystrixProperty(name = "execution.isolation.thread.timeoutinMilliseconds", value = "10"),
\n \/\/ \u662f\u5426\u542f\u7528\u8d85\u65f6\u65f6\u95f4
\n @HystrixProperty(name = "execution.timeout.enabled", value = "true"),
\n \/\/ \u6267\u884c\u8d85\u65f6\u7684\u65f6\u5019\u662f\u5426\u4e2d\u65ad
\n @HystrixProperty(name = "execution.isolation.thread.interruptOnTimeout", value = "true"),
\n \/\/ \u6267\u884c\u88ab\u53d6\u6d88\u7684\u65f6\u5019\u662f\u5426\u4e2d\u65ad
\n @HystrixProperty(name = "execution.isolation.thread.interruptOnCancel", value = "true"),
\n \/\/ \u5141\u8bb8\u56de\u8c03\u65b9\u6cd5\u6267\u884c\u7684\u6700\u5927\u5e76\u53d1\u6570
\n @HystrixProperty(name = "fallback.isolation.semaphore.maxConcurrentRequests", value = "10"),
\n \/\/ \u670d\u52a1\u964d\u7ea7\u662f\u5426\u542f\u7528，\u662f\u5426\u6267\u884c\u56de\u8c03\u51fd\u6570
\n @HystrixProperty(name = "fallback.enabled", value = "true"),
\n \/\/ \u662f\u5426\u542f\u7528\u65ad\u8def\u5668
\n @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u4e2d，\u65ad\u8def\u5668\u7194\u65ad\u7684\u6700\u5c0f\u8bf7\u6c42\u6570\u3002\u4f8b\u5982，\u9ed8\u8ba4\u8be5\u503c\u4e3a 20 \u7684\u65f6\u5019，
\n \/\/ \u5982\u679c\u6eda\u52a8\u65f6\u95f4\u7a97（\u9ed8\u8ba410\u79d2）\u5185\u4ec5\u6536\u5230\u4e8619\u4e2a\u8bf7\u6c42， \u5373\u4f7f\u8fd919\u4e2a\u8bf7\u6c42\u90fd\u5931\u8d25\u4e86，\u65ad\u8def\u5668\u4e5f\u4e0d\u4f1a\u6253\u5f00\u3002
\n @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "20"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u4e2d，\u8868\u793a\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u4e2d，\u5728\u8bf7\u6c42\u6570\u91cf\u8d85\u8fc7
\n \/\/ circuitBreaker.requestVolumeThreshold \u7684\u60c5\u51b5\u4e0b，\u5982\u679c\u9519\u8bef\u8bf7\u6c42\u6570\u7684\u767e\u5206\u6bd4\u8d85\u8fc750,
\n \/\/ \u5c31\u628a\u65ad\u8def\u5668\u8bbe\u7f6e\u4e3a "\u6253\u5f00" \u72b6\u6001，\u5426\u5219\u5c31\u8bbe\u7f6e\u4e3a "\u5173\u95ed" \u72b6\u6001\u3002
\n @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "50"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5f53\u65ad\u8def\u5668\u6253\u5f00\u4e4b\u540e\u7684\u4f11\u7720\u65f6\u95f4\u7a97\u3002 \u4f11\u7720\u65f6\u95f4\u7a97\u7ed3\u675f\u4e4b\u540e，
\n \/\/ \u4f1a\u5c06\u65ad\u8def\u5668\u7f6e\u4e3a "\u534a\u5f00" \u72b6\u6001，\u5c1d\u8bd5\u7194\u65ad\u7684\u8bf7\u6c42\u547d\u4ee4，\u5982\u679c\u4f9d\u7136\u5931\u8d25\u5c31\u5c06\u65ad\u8def\u5668\u7ee7\u7eed\u8bbe\u7f6e\u4e3a "\u6253\u5f00" \u72b6\u6001，
\n \/\/ \u5982\u679c\u6210\u529f\u5c31\u8bbe\u7f6e\u4e3a "\u5173\u95ed" \u72b6\u6001\u3002
\n @HystrixProperty(name = "circuitBreaker.sleepWindowinMilliseconds", value = "5000"),
\n \/\/ \u65ad\u8def\u5668\u5f3a\u5236\u6253\u5f00
\n @HystrixProperty(name = "circuitBreaker.forceOpen", value = "false"),
\n \/\/ \u65ad\u8def\u5668\u5f3a\u5236\u5173\u95ed
\n @HystrixProperty(name = "circuitBreaker.forceClosed", value = "false"),
\n \/\/ \u6eda\u52a8\u65f6\u95f4\u7a97\u8bbe\u7f6e，\u8be5\u65f6\u95f4\u7528\u4e8e\u65ad\u8def\u5668\u5224\u65ad\u5065\u5eb7\u5ea6\u65f6\u9700\u8981\u6536\u96c6\u4fe1\u606f\u7684\u6301\u7eed\u65f6\u95f4
\n @HystrixProperty(name = "metrics.rollingStats.timeinMilliseconds", value = "10000"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u6eda\u52a8\u65f6\u95f4\u7a97\u7edf\u8ba1\u6307\u6807\u4fe1\u606f\u65f6\u5212\u5206"\u6876"\u7684\u6570\u91cf，\u65ad\u8def\u5668\u5728\u6536\u96c6\u6307\u6807\u4fe1\u606f\u7684\u65f6\u5019\u4f1a\u6839\u636e
\n \/\/ \u8bbe\u7f6e\u7684\u65f6\u95f4\u7a97\u957f\u5ea6\u62c6\u5206\u6210\u591a\u4e2a "\u6876" \u6765\u7d2f\u8ba1\u5404\u5ea6\u91cf\u503c，\u6bcf\u4e2a"\u6876"\u8bb0\u5f55\u4e86\u4e00\u6bb5\u65f6\u95f4\u5185\u7684\u91c7\u96c6\u6307\u6807\u3002
\n \/\/ \u6bd4\u5982 10 \u79d2\u5185\u62c6\u5206\u6210 10 \u4e2a"\u6876"\u6536\u96c6\u8fd9\u6837，\u6240\u4ee5 timeinMilliseconds \u5fc5\u987b\u80fd\u88ab numBuckets \u6574\u9664\u3002\u5426\u5219\u4f1a\u629b\u5f02\u5e38
\n @HystrixProperty(name = "metrics.rollingStats.numBuckets", value = "10"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5bf9\u547d\u4ee4\u6267\u884c\u7684\u5ef6\u8fdf\u662f\u5426\u4f7f\u7528\u767e\u5206\u4f4d\u6570\u6765\u8ddf\u8e2a\u548c\u8ba1\u7b97\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a false, \u90a3\u4e48\u6240\u6709\u7684\u6982\u8981\u7edf\u8ba1\u90fd\u5c06\u8fd4\u56de -1\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.enabled", value = "false"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u767e\u5206\u4f4d\u7edf\u8ba1\u7684\u6eda\u52a8\u7a97\u53e3\u7684\u6301\u7eed\u65f6\u95f4，\u5355\u4f4d\u4e3a\u6beb\u79d2\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.timeInMilliseconds", value = "60000"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u767e\u5206\u4f4d\u7edf\u8ba1\u6eda\u52a8\u7a97\u53e3\u4e2d\u4f7f\u7528 \u201c \u6876 \u201d\u7684\u6570\u91cf\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.numBuckets", value = "60000"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u6bcf\u4e2a \u201c\u6876\u201d \u4e2d\u4fdd\u7559\u7684\u6700\u5927\u6267\u884c\u6b21\u6570\u3002\u5982\u679c\u5728\u6eda\u52a8\u65f6\u95f4\u7a97\u5185\u53d1\u751f\u8d85\u8fc7\u8be5\u8bbe\u5b9a\u503c\u7684\u6267\u884c\u6b21\u6570，
\n \/\/ \u5c31\u4ece\u6700\u521d\u7684\u4f4d\u7f6e\u5f00\u59cb\u91cd\u5199\u3002\u4f8b\u5982，\u5c06\u8be5\u503c\u8bbe\u7f6e\u4e3a100, \u6eda\u52a8\u7a97\u53e3\u4e3a10\u79d2，\u82e5\u572810\u79d2\u5185\u4e00\u4e2a \u201c\u6876 \u201d\u4e2d\u53d1\u751f\u4e86500\u6b21\u6267\u884c，
\n \/\/ \u90a3\u4e48\u8be5 \u201c\u6876\u201d \u4e2d\u53ea\u4fdd\u7559 \u6700\u540e\u7684100\u6b21\u6267\u884c\u7684\u7edf\u8ba1\u3002\u53e6\u5916，\u589e\u52a0\u8be5\u503c\u7684\u5927\u5c0f\u5c06\u4f1a\u589e\u52a0\u5185\u5b58\u91cf\u7684\u6d88\u8017，\u5e76\u589e\u52a0\u6392\u5e8f\u767e\u5206\u4f4d\u6570\u6240\u9700\u7684\u8ba1\u7b97\u65f6\u95f4\u3002
\n @HystrixProperty(name = "metrics.rollingPercentile.bucketSize", value = "100"),
\n \/\/ \u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6e\u91c7\u96c6\u5f71\u54cd\u65ad\u8def\u5668\u72b6\u6001\u7684\u5065\u5eb7\u5feb\u7167（\u8bf7\u6c42\u7684\u6210\u529f\u3001 \u9519\u8bef\u767e\u5206\u6bd4）\u7684\u95f4\u9694\u7b49\u5f85\u65f6\u95f4\u3002
\n @HystrixProperty(name = "metrics.healthSnapshot.intervalinMilliseconds", value = "500"),
\n \/\/ \u662f\u5426\u5f00\u542f\u8bf7\u6c42\u7f13\u5b58
\n @HystrixProperty(name = "requestCache.enabled", value = "true"),
\n \/\/ HystrixCommand\u7684\u6267\u884c\u548c\u4e8b\u4ef6\u662f\u5426\u6253\u5370\u65e5\u5fd7\u5230 HystrixRequestLog \u4e2d
\n @HystrixProperty(name = "requestLog.enabled", value = "true"),
\n },
\n threadPoolProperties = {
\n \/\/ \u8be5\u53c2\u6570\u7528\u6765\u8bbe\u7f6e\u6267\u884c\u547d\u4ee4\u7ebf\u7a0b\u6c60\u7684\u6838\u5fc3\u7ebf\u7a0b\u6570，\u8be5\u503c\u4e5f\u5c31\u662f\u547d\u4ee4\u6267\u884c\u7684\u6700\u5927\u5e76\u53d1\u91cf
\n @HystrixProperty(name = "coreSize", value = "10"),
\n \/\/ \u8be5\u53c2\u6570\u7528\u6765\u8bbe\u7f6e\u7ebf\u7a0b\u6c60\u7684\u6700\u5927\u961f\u5217\u5927\u5c0f\u3002\u5f53\u8bbe\u7f6e\u4e3a -1 \u65f6，\u7ebf\u7a0b\u6c60\u5c06\u4f7f\u7528 SynchronousQueue \u5b9e\u73b0\u7684\u961f\u5217，
\n \/\/ \u5426\u5219\u5c06\u4f7f\u7528 LinkedBlockingQueue \u5b9e\u73b0\u7684\u961f\u5217\u3002
\n @HystrixProperty(name = "maxQueueSize", value = "-1"),
\n \/\/ \u8be5\u53c2\u6570\u7528\u6765\u4e3a\u961f\u5217\u8bbe\u7f6e\u62d2\u7edd\u9608\u503c\u3002 \u901a\u8fc7\u8be5\u53c2\u6570， \u5373\u4f7f\u961f\u5217\u6ca1\u6709\u8fbe\u5230\u6700\u5927\u503c\u4e5f\u80fd\u62d2\u7edd\u8bf7\u6c42\u3002
\n \/\/ \u8be5\u53c2\u6570\u4e3b\u8981\u662f\u5bf9 LinkedBlockingQueue \u961f\u5217\u7684\u8865\u5145,\u56e0\u4e3a LinkedBlockingQueue
\n \/\/ \u961f\u5217\u4e0d\u80fd\u52a8\u6001\u4fee\u6539\u5b83\u7684\u5bf9\u8c61\u5927\u5c0f，\u800c\u901a\u8fc7\u8be5\u5c5e\u6027\u5c31\u53ef\u4ee5\u8c03\u6574\u62d2\u7edd\u8bf7\u6c42\u7684\u961f\u5217\u5927\u5c0f\u4e86\u3002
\n @HystrixProperty(name = "queueSizeRejectionThreshold", value = "5"), <\/p>\n\u4e94\u3001\u670d\u52a1\u76d1\u63a7<\/h2>\n
1\u3001\u4ecb\u7ecd<\/h3>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Hystrix\u4f9b\u4e86\u51c6\u5b9e\u65f6\u7684\u8c03\u7528\u76d1\u63a7（Hystrix Dashboard），Hystrix\u4f1a\u6301\u7eed\u5730\u8bb0\u5f55\u6240\u6709\u901a\u8fc7Hystrix\u53d1\u8d77\u7684\u8bf7\u6c42\u7684\u6267\u884c\u4fe1\u606f，\u5e76\u4ee5\u7edf\u8ba1\u62a5\u8868\u548c\u56fe\u5f62\u7684\u5f62\u5f0f\u5c55\u793a\u7ed9\u7528\u6237，\u5305\u62ec\u6bcf\u79d2\u6267\u884c\u591a\u5c11\u8bf7\u6c42\u591a\u5c11\u6210\u529f，\u591a\u5c11\u5931\u8d25\u7b49\u3002Netflix\u901a\u8fc7hystrix-metrics-event-stream\u9879\u76ee\u5b9e\u73b0\u4e86\u5bf9\u4ee5\u4e0a\u6307\u6807\u7684\u76d1\u63a7\u3002Spring Cloud\u4e5f\u63d0\u4f9b\u4e86Hystrix Dashboard\u7684\u6574\u5408，\u5bf9\u76d1\u63a7\u5185\u5bb9\u8f6c\u5316\u6210\u53ef\u89c6\u5316\u754c\u9762\u3002<\/p>\n
2\u3001\u521b\u5efa\u76d1\u63a7\u6a21\u57579001<\/h3>\n
（1）\u65b0\u5efa\u6a21\u5757<\/p>\n
<\/p>\n（2）\u4fee\u6539pom\u6587\u4ef6<\/p>\n
<?xml version="1.0" encoding="UTF-8"?>
\n<project xmlns="http:\/\/maven.apache.org\/POM\/4.0.0"
\n xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance"
\n xsi:schemaLocation="http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd">
\n <modelVersion>4.0.0<\/modelVersion>
\n <parent>
\n <groupId>com.hk.cloudstudy<\/groupId>
\n <artifactId>SecondSpringCloud<\/artifactId>
\n <version>1.0-SNAPSHOT<\/version>
\n <\/parent><\/p>\n<groupId>com.hk<\/groupId>
\n <artifactId>cloud-consumer-hystrix-dashboard9001<\/artifactId><\/p>\n<properties>
\n <maven.compiler.source>8<\/maven.compiler.source>
\n <maven.compiler.target>8<\/maven.compiler.target>
\n <project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>
\n <\/properties><\/p>\n<dependencies>
\n <dependency>
\n <groupId>org.springframework.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-netflix-hystrix-dashboard<\/artifactId>
\n <\/dependency>
\n <dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-actuator<\/artifactId>
\n <\/dependency><\/p>\n<dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-devtools<\/artifactId>
\n <scope>runtime<\/scope>
\n <optional>true<\/optional>
\n <\/dependency>
\n <dependency>
\n <groupId>org.projectlombok<\/groupId>
\n <artifactId>lombok<\/artifactId>
\n <optional>true<\/optional>
\n <\/dependency>
\n <dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-test<\/artifactId>
\n <scope>test<\/scope>
\n <\/dependency>
\n <\/dependencies><\/p>\n<\/project> <\/p>\n
（3）\u6dfb\u52a0\u914d\u7f6e\u6587\u4ef6<\/p>\n
server:
\n port: 9001 <\/p>\n（4）\u6dfb\u52a0\u542f\u52a8\u7c7b<\/p>\n
@SpringBootApplication
\n@EnableHystrixDashboard
\npublic class Main {
\n public static void main(String[] args) {
\n SpringApplication.run(Main.class, args);
\n }
\n} <\/p>\n3\u3001\u4fee\u65398001\u670d\u52a1<\/h3>\n
（1）\u4fee\u6539pom\u6587\u4ef6<\/p>\n
\u6dfb\u52a0\u5750\u6807<\/p>\n
<!– actuator\u76d1\u63a7\u4fe1\u606f\u5b8c\u5584 –>
\n<dependency>
\n <groupId>org.springframework.boot<\/groupId>
\n <artifactId>spring-boot-starter-actuator<\/artifactId>
\n<\/dependency> <\/p>\n（2）\u4fee\u6539\u542f\u52a8\u7c7b<\/p>\n
@SpringBootApplication
\n@EnableEurekaClient
\n@EnableCircuitBreaker \/\/ \u589e\u52a0\u6ce8\u89e3 \u6fc0\u6d3bHystrix
\npublic class PaymentHystrixMain8001 {
\n public static void main(String[] args) {
\n SpringApplication.run(PaymentHystrixMain8001.class, args);
\n }<\/p>\n\/**
\n *\u6b64\u914d\u7f6e\u662f\u4e3a\u4e86\u670d\u52a1\u76d1\u63a7\u800c\u914d\u7f6e，\u4e0e\u670d\u52a1\u5bb9\u9519\u672c\u8eab\u65e0\u5173，springcloud\u5347\u7ea7\u540e\u7684\u5751
\n *ServletRegistrationBean\u56e0\u4e3aspringboot\u7684\u9ed8\u8ba4\u8def\u5f84\u4e0d\u662f"\/hystrix.stream"，
\n *\u53ea\u8981\u5728\u81ea\u5df1\u7684\u9879\u76ee\u91cc\u914d\u7f6e\u4e0a\u4e0b\u9762\u7684servlet\u5c31\u53ef\u4ee5\u4e86
\n *\/
\n @Bean
\n public ServletRegistrationBean getServlet() {
\n HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
\n ServletRegistrationBean<HystrixMetricsStreamServlet> registrationBean = new ServletRegistrationBean<>(streamServlet);
\n registrationBean.setLoadOnStartup(1);
\n registrationBean.addUrlMappings("\/hystrix.stream");
\n registrationBean.setName("HystrixMetricsStreamServlet");
\n return registrationBean;
\n }
\n } <\/p>\n4\u3001\u6d4b\u8bd5<\/h3>\n
（1）\u586b\u5199\u76d1\u63a7\u5730\u5740<\/p>\n
\u8bbf\u95ee：localhost:9001\/hystrix<\/p>\n
<\/p>\n（2）\u89e6\u53d1\u65ad\u8def<\/p>\n
\u8bbf\u95ee：localhost:8001\/payment\/circuit\/10<\/p>\n
\u8bbf\u95ee：localhost:8001\/payment\/circuit\/-10<\/p>\n
<\/p>\n\u591a\u5931\u8d25\u51e0\u6b21<\/p>\n
<\/p>\n（3）\u56fe\u5f62\u8bf4\u660e<\/p>\n
<\/p>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"\u76ee\u5f55
\n\u4e00\u3001\u4ecb\u7ecd
\n\u4e8c\u3001\u6848\u4f8b
\n1\u3001\u6784\u5efa8001\u670d\u52a1
\n2\u3001\u6784\u5efa80\u670d\u52a1
\n\u4e09\u3001\u670d\u52a1\u964d\u7ea7
\n1\u3001\u4fee\u65398001\u670d\u52a1
\n2\u3001\u4fee\u653980\u670d\u52a1
\n3\u3001\u4f18\u5316
\n\u56db\u3001\u670d\u52a1\u7194\u65ad
\n1\u3001\u4ecb\u7ecd
\n2\u3001\u7194\u65ad\u7c7b\u578b
\n3\u3001\u4fee\u65398001\u670d\u52a1
\n4\u3001\u603b\u7ed3
\n5\u3001\u53c2\u6570\u8bf4\u660e
\n\u4e94\u3001\u670d\u52a1\u76d1\u63a7
\n1\u3001\u4ecb\u7ecd
\n2\u3001\u521b\u5efa\u76d1\u63a7\u6a21\u57579001
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