zhaoyibo / spring-cloud-study

Spring Cloud 实践学习案例，由浅入深一步一步学习 Spring Cloud，是 Spring Cloud 初学者及核心技术巩固的最佳实践。

Spring Cloud 实践学习案例

转载请标明出处：https://haoyizebo.com/tags/Spring-Cloud/ 本文出自 好一则博

Spring Cloud 实践学习案例，由浅入深一步一步学习 Spring Cloud，是 Spring Cloud 初学者及核心技术巩固的最佳实践。

Docker 支持

如果使用 Docker for Mac 请先参考 https://haoyizebo.com/2019/08/30/docker-for-mac-network/

创建 network

docker network create micro-service

Eureka Server

服务注册基本上每次都要用到，为了方便我做了一个 Dockerfile。 使用以下命令可以直接拉取使用镜像：

docker run --rm --name eureka-server --network micro-service -p 8761:8761 haoyizebo/eureka-server:latest

Producer

docker run --rm --name eureka-producer --network micro-service -p 8080:8080 haoyizebo/eureka-producer:latest

spring-cloud-study's Issues

eureka集群启动失败

你好，我是从spring cloud 1.x迁移过来的，eureka server集群模式迁移到2.x版本失败了。在您的源码这里启动eureka集群也是碰到一样的问题==Failed to initialize DiscoveryClient

请问gateway配置了hystrix但是并没有触发fallback

https://windmt.com/2018/05/11/spring-cloud-16-spring-cloud-gateway-others/

看有关actuator里面的refresh

刚开始访问localhost:13000/actuator/refresh,直接在浏览器里面访问，默认是GET,我为了这个问题，找了好多方法，最后发现是用POST,真的是读文档不仔细，总之谢了老铁，文档挺好的

大佬, 动态网关代码求上传

大佬, 这个是您的博客地址么? https://windmt.com/2019/01/20/spring-cloud-20-gateway-dynamic-routing/
这是我见过的最好的动态网关博客, 目前没有之一, 可是缺失了一个service, 想学习一下... 大佬您能把代码push上来么?

spring cloud gateway 限流未生效

获取了您的代码,本地跑了一下gateway 相关代码,自己压了一下,发现限流未生效,,不知道为何

限流没用

兄台，下载了你的代码，debug模式，RedisRateLimite的 isAllowed都进不去，而且redis啥也存不进去，看了下代码yml种有路由转发，代码中还有，有点懵，浏览器访问后台不管怎样都出Mapping [Exchange: GET http://localhost:10000/fluent/customer/hello/java] to Route{id='fluent_customer_service', uri=lb://CONSUMER, order=0, predicate=Paths: [/fluent/customer/**], match trailing slash: true, gatewayFilters=[[[StripPrefix parts = 2], order = 0], com.windmt.filter.ElapsedFilter@4009668d, [[AddResponseHeader X-Response-Default-Foo = 'Default-Bar'], order = 0]], metadata={}}
不加fluent也不报错，但浏览器报401错误，可能还不会用你的代码

我自己搭的能路由，限流不起作用，也不报错，RedisRateLimite的 isAllowed都进不去，下载了网上的代码，都是这个问题，限流不起作用，debug的话RedisRateLimite的 isAllowed都进不去
盼能解答下

依赖不对吧

pom中很多依赖不对吧，很多是版本问题，有的是完成找不到。比如说github的那个依赖，换仓库也找不到，怎么解啊

spring boot 版本和cloud版本不匹配，boot版本应该为2.0.1

config-eureka-bus/config-server config配置服务启动失败

pom.xml文件中SpringBoot使用的是2.1.0.RELEASE,SpringCloud使用的是Finchley.SR2,启动config服务报错，报错代码如下：
`java.lang.IllegalStateException: Error processing condition on org.springframework.cloud.stream.config.BindingServiceConfiguration.bindingService
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:64) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:181) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:141) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:327) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:691) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:528) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at com.windmt.ConfigServerApplication.main(ConfigServerApplication.java:16) [classes!/:0.0.1-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.stream.config.BindingServiceConfiguration] from ClassLoader [org.springframework.boot.loader.LaunchedURLClassLoader@439f5b3d]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:680) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:577) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:562) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:620) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_201]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:721) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:662) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:630) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1491) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1014) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:195) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:159) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanType(BeanTypeRegistry.java:152) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:140) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_201]
at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:135) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.getNamesForType(BeanTypeRegistry.java:97) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:298) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:289) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:278) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:189) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:160) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
... 25 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/integration/config/HandlerMethodArgumentResolversHolder
at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_201]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_201]
at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_201]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:662) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
... 47 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.integration.config.HandlerMethodArgumentResolversHolder
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_201]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_201]
at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93) ~[config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_201]
... 51 common frames omitted

2019-03-26 11:00:17.964 WARN 3093 --- [ main] o.s.boot.SpringApplication : Unable to close ApplicationContext

java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.stream.config.BindingServiceConfiguration] from ClassLoader [org.springframework.boot.loader.LaunchedURLClassLoader@439f5b3d]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:680) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:577) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:562) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:620) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_201]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:721) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:662) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:630) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1491) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:507) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:477) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:598) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:590) ~[spring-beans-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1204) ~[spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:905) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:891) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:877) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:826) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
at com.windmt.ConfigServerApplication.main(ConfigServerApplication.java:16) [classes!/:0.0.1-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: java.lang.NoClassDefFoundError: org/springframework/integration/config/HandlerMethodArgumentResolversHolder
at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_201]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_201]
at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_201]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:662) ~[spring-core-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
... 29 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.integration.config.HandlerMethodArgumentResolversHolder
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_201]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_201]
at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93) ~[config-server-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_201]
... 33 common frames omitted
`

交流sc

hi，
看了您的文章，方便的加一下微信交流一下。我的微信aoho2012。

keets

同时使用不同类型的限流策略

想实现不同的服务有不同的限流类型，有的是通过ip限流，有的是接口限流，
就需要扩展KeyResolver实现多种限流类型，但是每次只能注入一个bean，就没办法实现网关同时存在ip限流和接口限流，这种有思路解决吗？

eureka

项目中跑 eureka下的
eureka-server eureka-consumer-feign eureka-producer 三个项目，最后访问http://localhost:9002/hello/name 报如下错误，

feign.FeignException: status 400 reading HelloRemote#hello(String); content: