SpringFramework 5.2.7 响应式编程深度解析

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"本书是关于Spring Framework 5.2.7版本的中文解析,特别是针对Reactive编程模型的探讨。作者旨在将官方英文文档转化为易于理解的中文版本,并结合实践案例和源码分析,帮助开发者深入理解Spring Framework的核心概念和应用。书中不仅涉及Spring Framework的基础模块,还会涵盖Spring Boot、Spring Cloud以及其他Spring生态系统中的重要组件,如Spring Data、Spring Session、Spring Security等。" Spring Framework是Java开发中广泛使用的框架,它提供了全面的基础设施支持,用于构建企业级应用。在5.2.7版本中,Spring引入了对Reactive编程的支持,这是一种非阻塞、事件驱动的编程范式,特别适合处理高并发和资源受限的场景。 在"Spring核心"模块中,读者可以了解到Spring的基本架构,包括依赖注入(DI)、AOP(面向切面编程)以及容器管理的bean。这些概念是Spring Framework的基础,它们允许开发者创建松耦合、易于测试的代码。 "测试"模块讲解了如何使用Spring提供的测试工具和API进行单元测试和集成测试,这对于确保代码质量至关重要。通过模拟对象、测试注解和测试上下文,开发者可以更方便地编写和运行测试用例。 "数据存储"部分涵盖了Spring与各种数据存储系统的整合,如JDBC、ORM框架(如Hibernate)、NoSQL数据库等。它提供了一种统一的方式来访问和操作数据,简化了数据库交互。 "Web Servlet"模块主要涉及传统的基于Servlet的Web应用开发,包括Spring MVC,它是构建RESTful API和Web应用的强大工具。开发者可以学习如何定义控制器、处理请求和响应,以及模板引擎的使用。 "Web Reactive"是Spring 5引入的新特性,针对Reactive Streams API,提供了非阻塞的Web应用开发能力。这个模块将介绍如何使用WebFlux构建反应式Web服务,以应对高并发和低延迟的挑战。 "集成"部分则讨论了Spring与其他系统的整合,如邮件服务、任务调度、远程调用等。这使得Spring成为了一个全面的企业级解决方案。 作者强调,虽然Spring Framework的官方文档详尽而优秀,但对初学者和经验较少的开发者来说可能较为复杂。因此,书中会通过实例代码和源码分析来辅助理解,帮助读者将理论知识应用于实际项目。 此外,作者有着丰富的金融行业背景,曾参与多个知名企业的技术团队,目前专注于统一支付系统的建设。他涉猎广泛,对大数据、分布式微服务、响应式编程和人工智能等领域都有实践和研究,这将为书中的技术解析带来丰富的实战经验。 本书的示例代码可在提供的Git仓库中找到,对于想要动手实践的读者来说,这是一个宝贵的资源。通过阅读本书,读者不仅可以深入理解Spring Framework,还能提升在Reactive编程领域的技能。

引入一个依赖后,启动springboot报错:org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'defaultValidator' defined in class path resource [org/springframework/boot/autoconfigure/validation/ValidationAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError: org.hibernate.validator.engine.ConfigurationImpl.getDefaultParameterNameProvider()Ljavax/validation/ParameterNameProvider; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:893) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]

2023-06-08 上传

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'deptServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'deptMapper' defined in file [D:\WorkSpace\work13\djd_server\target\classes\com\jiading\djd\mapper\DeptMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 40; 元素内容必须由格式正确的字符数据或标记组成。 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:893) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE] at com.jiading.djd.DjdApplication.main(DjdApplication.java:14) [classes/:na]报错了

2023-07-25 上传