Mybatis学习之LomBok

LomBok

• java library
• plugs
• build tools
• with one annotation your class

使用步骤：

1.在IDEA中安装Lombok

2.导入Lombok的jar包

<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.10</version>
    </dependency>

3.在实体类上加注解

例子

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private int id;
    private String name;
    private String pwd;
}

@Getter and @Setter
@FieldNameConstants
@ToString
@EqualsAndHashCode
@AllArgsConstructor, @RequiredArgsConstructor and @NoArgsConstructor
@Log, @Log4j, @Log4j2, @Slf4j, @XSlf4j, @CommonsLog, @JBossLog, @Flogger, @CustomLog
@Data
@Builder
@SuperBuilder
@Singular
@Delegate
@Value
@Accessors
@Wither
@With
@SneakyThrows
@val
@var
experimental @var
@UtilityClass
Lombok config system

说明：

@Data:无参构造，get,set,tostring,hashcode,equals

@AllArgsConstructor

@NoArgsConstructor

缺点：

1.不支持多种参数构造器的重载

2.降低了源代码的可读性和完整性，降低了阅读源代码的舒适度