【 SpringBoot 】- 4 Spring Boot 集成 lombok

Add 1 lombokdependent

<dependency>
	<groupId>org.projectlombok</groupId>
	<artifactId>lombok</artifactId>
</dependency>

2 entity class presentation

@Slf4j
@Data
public class UserEntity {
	// @Getter
	// @Setter
	private String userName;
	// @Getter
	// @Setter
	private Integer age;

	@Override
	public String toString() {
		return "UserEntity [userName=" + userName + ", age=" + age + "]";
	}

	public static void main(String[] args) {
		UserEntity userEntity = new UserEntity();
		userEntity.setUserName("zhangsan");
		userEntity.setAge(20);
		System.out.println(userEntity.toString());
		log.info("####我是日志##########");
	}

}

3 Other Features

• @Data Tag, generating getter / setter toString () method and the like
• @NonNull: So you do not worry about falling in love and NullPointerException
• @CleanUp: Automatic Resource Management: no need to add resources in a finally close in
• @Setter/@Getter: Automatically generating set and get methods
• @ToString: The method of automatically generating toString
• @EqualsAndHashcode: Generates a hashCode and equals from the object field
• @NoArgsConstructor/@RequiredArgsConstructor/@AllArgsConstructor
  Automatically generated constructor
• @Data: Generated automatically set / get method, toString method, equals method, the hashCode method, constructor with no arguments
• @Value: For the annotation final class
• @Builder: Generating complex builder class api
• @SneakyThrows: Exception Handling (with caution)
• @Synchronized: Safety synchronization method of transformation
• @Getter(lazy=true)
• @Log: Logger supports a variety of objects, with the use of the corresponding annotation, such as: @ Log4