Lombok

9、Lombok

Lombok 可以帮我们写好Setter/Getter方法、构造方法等 我们直接拿来用

我们只需要导包，用注解即可实现

Project Lombok is a java library that automatically plugs into your editor and build tools, spicing up your java.
Never write another getter or equals method again, with one annotation your class has a fully featured builder, Automate your logging variables, and much more.

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

使用步骤：

1. 在IDEA中安装Lombok插件！

2. 在项目中导入lombok的jar包

   <dependency>
       <groupId>org.projectlombok</groupId>
       <artifactId>lombok</artifactId>
       <version>1.18.10</version>
   </dependency>
   

3. 在实体类上加注解即可！

   @Data
   @AllArgsConstructor
   @NoArgsConstructor
   

@Getter and @Setter
@FieldNameConstants
@ToString
@EqualsAndHashCode
@AllArgsConstructor, @RequiredArgsConstructor and @NoArgsConstructor
@Log, @Log4j, @Log4j2, @Slf4j, @XSlf4j, @CommonsLog, @JBossLog, @Flogger
@Data
@Builder
@Singular
@Delegate
@Value
@Accessors
@Wither
@SneakyThrows

说明：

@Data：无参构造，get、set、tostring、hashcode，equals
@AllArgsConstructor
@NoArgsConstructor
@EqualsAndHashCode
@ToString
@Getter