java 系统开发常用注解

Spring

Data

• @DynamicInsert
• @DynamicUpdate
• @Entity
• @Table(name = "")
• @Id
• @GeneratedValue(strategy = GenerationType.IDENTITY)
• @Column(name = "")

Spring

• @Bean
• @Component
• @ComponentScan(basePackages = "com.chen.learnspring")
• @Profile(value = "prod")
• @Autowired
• @Conditional
• @Primary
• @Qualifier("bean id")
• @Scope("prototype") 设置bean的作用域: "Singleton" :单例 , "Prototype" : 原型(每次注入都会创建新的bean),"Session": 会话,"Request" : 请求. (Spring实战第4版 86页)

AOP

• @Aspect
• @Before
• @AfterReturning
• @AfterThrowing
• @Around
• @EnableAspectJAutoProxy
• PointCut
• DeclareParents

spring.aop.auto=true SpringBoot

Test

• @RunWith(SpringJUnit4ClassRunner.class)
• @ContextConfiguration(classes = CDPlayerConfig.class)
• @ActiveProfiles(value = "prod")

校验注解 javax.validation.constraints

• AssertFalse
• AssertTrue
• DecimalMax
• DecimalMin
• Digits
• Size
• PositiveOrZero
• Positive
• Pattern
• Min
• Max
• Future

异常

• @ResponseStatus(value = HttpStatus.ACCEPTED,reason = "Not Found")
• @ExceptionHandler