Spring Boot 2.7.9 Reference Documentation

• 语言: 英语
• 格式: .pdf
• 来源: docs.spring.io

摘要

文档详细介绍了Spring Boot 2.7.9的使用方法，包括从入门到开发、配置、安全等各个方面。它强调了Spring Boot的快速开发能力，通过自动配置简化了项目的配置过程，并提供了对常见问题的解决方案。文档还涵盖了Spring Boot与各种第三方库的集成，如数据库、消息队列和安全模块，并提供了详细的升级指南和最佳实践。

AI总结

### Spring Boot 2.7.9 Reference Documentation Summary

#### 1. **Introduction**
- **Purpose**: Spring Boot simplifies the creation of stand-alone, production-grade Spring-based applications.
- **Key Features**:
- Opinionated defaults for minimal configuration.
- Embedded servers, security, metrics, health checks, and externalized configuration.
- No XML configuration required.
- **Supported Java Versions**: Java 8 to Java 19.
- **Build Tools**: Maven (3.5+), Gradle (6.8.x, 6.9.x, 7.x), and limited support for Ant.

#### 2. **Getting Started**
- **Documentation**: Available at [docs.spring.io/spring-boot](https://docs.spring.io/spring-boot).
- **Learning Path**:
- Basics: Overview, Requirements, Installation.
- Tutorial: Step-by-step guidance.
- Running Examples: Instructions for execution.

#### 3. **Upgrading from Earlier Versions**
- Ensure you are running a supported version.
- Upgrading tips:
- From 1.x versions.
- To new feature releases.
- Spring Boot CLI upgrades.

#### 4. **Developing with Spring Boot**
- **Build Systems**:
- Maven, Gradle, and Ant are recommended.
- Dependency management via curated lists (e.g., `spring-boot-dependencies`).
- **Best Practices**:
- Code structure, configuration annotations (`@Configuration`, `@EnableAutoConfiguration`), and dependency injection.
- **Running and Packaging**:
- IDE support, packaged apps, Maven, and Gradle configurations.
- Production JAR packaging.

#### 5. **Core Features**
- **Spring Application**:
- `SpringApplication` for application lifecycle management.
- **External Configuration**:
- Support for externalized configuration properties.
- **Profiles**:
- Environment-specific configurations.
- **Actuator**:
- Monitoring and management endpoints.

#### 6. **Web Applications**
- **Servlet Web**:
- Spring MVC, Jersey, and embedded servlet containers.
- **Reactive Web**:
- Spring WebFlux for asynchronous, event-driven applications.
- **Security**:
- Spring Security for authentication and authorization.
- Default security configurations and OAuth2/SAML support.
- **Graceful Shutdown**:
- Proper shutdown mechanisms for applications.

#### 7. **Data Handling**
- **SQL**:
- Database configuration, embedded database support, and connection pools.
- **NoSQL**:
- Auto-configuration for Redis, MongoDB, Neo4j, and other NOSQL stores.

#### 8. **Messaging**
- **JMS**:
- ActiveMQ and Artemis support via `spring-boot-starter-activemq`.
- Embedded broker support with configuration properties.
- **AMQP**:
- RabbitMQ auto-configuration.
- **Kafka**:
- Spring Kafka auto-configuration.
- **RSocket**:
- Support for Spring Framework’s RSocket.
- **Spring Integration**:
- Auto-configuration for messaging systems.

#### 9. **IO Capabilities**
- **Caching**:
- Support for EhCache, Hazelcast, and Infinispan.
- **Quartz**:
- Scheduling support.
- **Mail**:
- Sending emails.
- **Validation**:
- JSR-303 validation.
- **REST Clients**:
- `RestTemplate` and `WebClient` for REST services.
- **WebServices**:
- Spring WebServices auto-configuration.

#### 10. **Community and Resources**
- **Getting Help**:
- How-to guides, Spring basics, and Stack Overflow support.
- **Documentation**:
- Open-source, with options to contribute and improve.

#### 11. **Conclusion**
- Spring Boot 2.7.9 provides a comprehensive framework for building modern applications with minimal configuration.
- Key areas include development, configuration, web, data, messaging, and IO capabilities.
- The documentation is a valuable resource for both new and experienced users.