浅谈springcloud常用依赖和配置

常用依赖

// pom.xml<?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.roit</groupId> <artifactId>config</artifactId> <version>1.0.0</version> <!-- 微服务的包 --> <packaging>pom</packaging> <!-- spring-boot 父工程 --> <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.3.RELEASE</version><relativePath/> </parent> <properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version> </properties> <dependencyManagement><dependencies> <!-- spring-cloud 依赖 https://spring.io/projects/spring-cloud --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Hoxton.SR7</version><type>pom</type><scope>import</scope> </dependency> <!-- 启动类长运行配置 @SpringBootApplication --> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- eureka 服务端 @EnableConfigServer http://localhost:8761 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> </dependency> <!-- eureka 客户端 @EnableEurekaClient --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-netflix-eureka-client</artifactId> </dependency> <!-- consul 注册 http://localhost:8500/ui/dc1/services --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-consul-discovery</artifactId> </dependency> <!-- nacos 注册 http://localhost:8848/nacos --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> </dependency> <dependency><groupId>org.springframework.cloud</groupId><artifactId>nacos-client</artifactId> </dependency> <!-- feign 声明式服务调用 替代 RestTemplate @EnableFeignClients --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId> </dependency> <!-- hystrix 熔断器，服务降级 @EnableCircuitBreaker --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-hystrix</artifactId> </dependency> <!-- hystrix 图形化监控，只能监控一个服务 @EnableHystrixDashboard http://localhost:8769/hystrix --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId> </dependency> <!-- turbine 聚合监控 @EnableTurbine http://localhost:8769/turbine.stream --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-turbine</artifactId> </dependency> <!-- spring-boot 提供的监控 --> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!-- 网关 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId> </dependency> <!-- git 配置类服务端 @EnableConfigServer http://localhost/8888/master/config-dev.yml --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-config-server</artifactId> </dependency> <!-- git 配置类客户端 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-config</artifactId> </dependency> <!-- bus-rabbitmq 消息总线，做 config 自动刷新 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-bus-amqp</artifactId> </dependency> <!-- stream-rabbitmq 发送消息 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-stream-rabbit</artifactId> </dependency> <!-- sleuth + zipkin 服务链路追踪。需要 zipkin 的 jar包，图形化查看地址 http://localhost:9411--> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-zipkin</artifactId> </dependency></dependencies> </dependencyManagement></project>

配置

// application.yml# 设置端口server: port: 8000# 服务名spring: application: name: eureka# eureka 配置eureka: instance: hostname: localhost client: service-url: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka # 是否需要将自己的路径注册到 eureka 服务端 register-with-eureka: true # 是否需要从 eureka 服务端抓取路径 fetch-registry: true# consulspring: cloud: consul: host: localhost port: 8500 discovery:# 注册到 consul 的服务名service-name: ${spring.application.name}# 监控界面显示 ipprefer-ip-address: true# nacosspring: cloud: nacos: discovery:# 服务端地址server-addr: 127.0.0.1:8848# ribben 负载均衡策略provider: ribbon: NFloadBalancerRuleClassName: com.netflix.loadbalancer.RandomRule# feign 超时配置, 集成了 ribbonribbon: # 连接超时时间 默认 1000ms ConnectTimeout: 1000 # 逻辑处理超时时间 默认 1000ms ReadTimeout: 3000#feign 集成了 hystrix，开启 hystrixfeign: hystrix: enabled: true# feign 设置日志级别，只支持 debug, 请求响应的相关数据logging: level: com.roit.controller: debug# turbine 聚合监控turbine: combine-host-port: true # 配置监控的服务名 app-config: provider,consumer cluster-name-expression: '’default’' aggregator: cluster-config: default #instanceUrlSuffix: /actuator/hystrix.stream# gateway 网关spring: cloud: gateway: routes: - id: provider# provider 的静态访问路径# uri: http://localhost:8001/# 动态uri: lb://provider# 匹配规则predicates:- Path=/goods/**# 局部过滤器filters: - AddRequestParameter=username,zs discovery:locator: # 请求路径加上微服务名称，http://localhost/provider/goods/ 或 http://localhost/goods/ 都行 enabled: true # 默认名称大写，改为允许小写 lower-case-service-id: true# config 服务端spring: cloud: config: server:# 文件的仓库地址git: uri: https://gitee.com/config.git # username: zs # password: 123 # 文件所在分支 label: master# config 客户端，bootstrap.ymlspring: cloud: config: # http://localhost:8888/master/config-dev.yml # config 服务端地址 # uri: http://localhost:8888 name: config profile: dev,redis label: master # 动态配置 config 服务端地址，先将config 服务端注册到 eureka discovery:enabled: true# config 服务端的名字，大写service-id: config-server# config 客户端 单服务自动刷新# 1. 加依赖 actuator# 2. 获取数据的 controller 上加@RefreshScope# 3. curl -X POST http://localhost:8001/actuator/refreshmanagement: endpoints: web: exposure:# * 暴露所有；refresh 暴露自动刷新，/actuator/refresh。include: ’*’# bus 自动刷新，先给 config-server 发消息，再由 server 去通知所有的 config-client# bus-amqp 内部使用 rabbitmq 发消息# config-server 需暴露 bus-refresh 和 配置 rabbitmq# curl -X POST http://localhost:8888/actuator/bus-refreshinclude: ’bus-refresh’# config-client 需配置 rabbitmq 和 在获取数据的 controller 上加 @RefreshScopespring: rabbitmq: host: localhost port: 5672 username: guest password: guest virtual-host: /# stream-rabbitspring: cloud: stream: binders:# 定义绑定器名称mybinder: type: rabbit # 指定 mq 的环境 environment: spring: rabbitmq:host: localhostport: 5672username: guestpassword: guestvirtual-host: / bindings:# 生产者 @EnableBinding(Source.class)output:# 消费者 @EnableBinding(Sink.class), @StreamListener(Sink.INPUT)# input: binder: mybinder # 绑定的交换机名称 destination: myexchange# sleuth + zipkinspring: zipkin: # zipkin 服务端路径 base-url: http://lacalhost:9411/ sleuth: sampler: # 数据采集率 默认0.1 probability: 0.1

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