Spring注解大全

Posted 2021-03-17 hellsino

解耦思想：编译不耦合，运行耦合

Spring注解大全

@Configuration
@ComponentScan("com.itheima")
@PropertySource("classpath:jdbc.properties")
@Value("${jdbc.username}")
----------------------
== 创建bean对象,并存放到IOC容器
@Component
@Controller
@Service
@Repository
@Bean
== 注入数据
@Autowired
@Qualifier
@Resource
@Value
== bean相关配置
@Scope
@PostConstruct
@PreDestroy
----------------------

依赖

<packaging>jar</packaging>

    <!--依赖包-->
    <dependencies>
        <!--spring ioc依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>
        <!--spring jdbc依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>
        <!-- mysql数据库依赖 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.40</version>
        </dependency>
    </dependencies>