gh_mirrors/sp/spring-microservices实战：构建货币兑换与转换微服务系统

gh_mirrors/sp/spring-microservices实战构建货币兑换与转换微服务系统【免费下载链接】spring-microservicesOLD - Microservices using Spring Boot, Spring Cloud, Docker and Kubernetes. Replaced by https://github.com/in28minutes/spring-microservices-v3项目地址: https://gitcode.com/gh_mirrors/sp/spring-microservicesgh_mirrors/sp/spring-microservices是一个基于Spring Boot和Spring Cloud技术栈构建的微服务项目专注于实现货币兑换与转换功能。本指南将带你通过实战方式快速掌握如何使用该项目构建完整的货币兑换微服务系统。项目核心功能与架构概述该项目通过两个核心微服务实现货币兑换功能货币兑换服务currency-exchange-service提供不同货币之间的汇率查询功能支持从数据库加载汇率数据并对外提供REST API接口。货币转换服务currency-conversion-service基于货币兑换服务提供的汇率实现不同货币间的金额转换支持通过Feign客户端调用其他微服务。项目采用经典的微服务架构包含服务注册与发现Eureka、API网关Zuul等关键组件完整实现了微服务间的通信与协作。快速开始环境搭建与项目部署1. 克隆项目代码库git clone https://gitcode.com/gh_mirrors/sp/spring-microservices cd spring-microservices2. 核心服务启动顺序为确保系统正常运行建议按照以下顺序启动服务服务注册中心netflix-eureka-naming-server配置服务器spring-cloud-config-server货币兑换服务currency-exchange-service货币转换服务currency-conversion-serviceAPI网关netflix-zuul-api-gateway-server每个服务可通过Maven命令独立启动cd 03.microservices/currency-exchange-service mvn spring-boot:run货币兑换服务详解核心功能与实现货币兑换服务主要提供基于数据库的汇率查询功能核心实现类包括ExchangeValue.java实体类存储汇率信息包含id、源货币、目标货币、汇率值等字段ExchangeValueRepository.java数据访问接口继承JpaRepository实现数据库操作CurrencyExchangeController.javaREST API控制器提供汇率查询接口服务默认配置文件路径03.microservices/currency-exchange-service/src/main/resources/application.properties关键配置spring.application.namecurrency-exchange-service server.port8000 spring.datasource.urljdbc:h2:mem:testdb spring.h2.console.enabledtrue测试汇率查询接口服务启动后可通过以下URL查询汇率http://localhost:8000/currency-exchange/from/USD/to/INR响应示例{ id: 1000, from: USD, to: INR, conversionMultiple: 65.00, port: 8000 }货币转换服务详解服务实现与Feign客户端货币转换服务通过Feign客户端调用货币兑换服务获取汇率核心组件包括CurrencyConversionBean.java转换结果实体类CurrencyExchangeServiceProxy.javaFeign客户端接口定义对货币兑换服务的调用CurrencyConversionController.java提供货币转换REST APIFeign客户端定义示例FeignClient(namecurrency-exchange-service) RibbonClient(namecurrency-exchange-service) public interface CurrencyExchangeServiceProxy { GetMapping(/currency-exchange/from/{from}/to/{to}) public CurrencyConversionBean retrieveExchangeValue( PathVariable(from) String from, PathVariable(to) String to); }测试货币转换功能服务启动后可通过以下URL进行货币转换http://localhost:8100/currency-converter-feign/from/USD/to/INR/quantity/10响应示例{ id: 1000, from: USD, to: INR, conversionMultiple: 65.00, quantity: 10, totalCalculatedAmount: 650.00, port: 8000 }服务注册与发现Eureka集成项目使用Netflix Eureka实现服务注册与发现服务注册中心配置位于03.microservices/netflix-eureka-naming-server/src/main/java/com/in28minutes/microservices/netflixeurekanamingserver/NetflixEurekaNamingServerApplication.java服务注册配置在货币兑换服务和货币转换服务的application.properties中添加Eureka客户端配置eureka.client.serviceUrl.defaultZonehttp://localhost:8761/eureka/ eureka.instance.preferIpAddresstrue启动Eureka服务器后访问 http://localhost:8761 可查看服务注册状态。API网关Zuul集成项目使用Netflix Zuul作为API网关统一入口配置位于03.microservices/netflix-zuul-api-gateway-server/src/main/java/com/in28minutes/microservices/netflixzuulapigatewayserver/NetflixZuulApiGatewayServerApplication.java通过API网关访问服务的URL格式http://localhost:8765/currency-exchange-service/currency-exchange/from/EUR/to/INR http://localhost:8765/currency-conversion-service/currency-converter-feign/from/USD/to/INR/quantity/10负载均衡实现项目通过Ribbon实现客户端负载均衡配置示例currency-exchange-service.ribbon.listOfServershttp://localhost:8000,http://localhost:8001启动多个货币兑换服务实例不同端口系统会自动实现请求的负载均衡分发。总结与进阶学习通过本实战指南你已经掌握了使用gh_mirrors/sp/spring-microservices项目构建货币兑换微服务系统的核心步骤。该项目还包含了配置中心、服务熔断等高级特性可通过以下资源进一步学习项目详细步骤文档03.microservices/step20.md服务升级说明spring-boot-2-0-0-Upgrade-notes.md完整代码示例03.microservices/currency-conversion-service/src/main/java/com/in28minutes/microservices/currencyconversionservice/微服务架构设计需要考虑服务拆分、通信方式、容错机制等多方面因素建议结合Spring Cloud官方文档深入理解各组件的工作原理。【免费下载链接】spring-microservicesOLD - Microservices using Spring Boot, Spring Cloud, Docker and Kubernetes. Replaced by https://github.com/in28minutes/spring-microservices-v3项目地址: https://gitcode.com/gh_mirrors/sp/spring-microservices创作声明：本文部分内容由AI辅助生成（AIGC），仅供参考