Lombok

相信使用Mybaits的小伙伴们一定会经常编写类似如下的代码： 可以看到 userMapper 下有个红色警告。虽然代码本身并没有问题，能正常运行，但有个警告总归有点恶心。本文分析原因，并列出解决该警告的几种方案。 原因 众所周知，IDEA是非常智能的，它可以理解Spring的上下文。然而 UserMapper 这个接口是Mybatis的，IDEA理解不了。 而 @Autowired 注解，默认情况下要求依赖对象（也就是 userMapper ）必须存在。而IDEA认为这个对象的实例/代理是个null，所以就 友好地给个提示 。 解决方案 方法1：为 @Autowired 注解设置required = false 使用 @Autowired 注解时，若希望允许null值，可设置required = false，像这样： @Autowired(required = false) private UserMapper userMapper; 这样就不会有警告了。原因很好理解：IDEA认为userMapper是个null，给了警告；加上required = false后，使用 @Autowired 注解不再去校验userMapper是否存在了。也就不会有警告了。 总结 ：这种方式有点蛋疼。一个庞大的既有项目，可能到处都在引用Mapper，总不能到处都补上 required = false

Help me to set up comile dependencies in Android Studio in build.gradle. I mean that they not include into final APK. this build.gradle works fine but i don't need lombok library in apk in runtime; apply plugin: 'android' android { compileSdkVersion 19 buildToolsVersion "19.0.0" defaultConfig { minSdkVersion 10 targetSdkVersion 16 versionCode 1 versionName "1.0" } buildTypes { release { runProguard false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' } } } dependencies { compile 'com.android.support:appcompat-v7:+' compile 'org.projectlombok:lombok:1.12.2' }

1. 痛点 一种框架的出现都要解决个痛点，我想下面这这种不方便的操作经常有人写吧。 假如 Car 类是数据库映射类: ​​ package cn.felord.mapstruct.entity; import lombok.Data; /** * Car * * @author Felordcn * @since 13:35 2019/10/12 **/ @Data public class Car { private String make; private int numberOfSeats; private CarType type; } CarType 类： package cn.felord.mapstruct.entity; import lombok.Data; /** * CarType * * @author Felordcn * @since 13:36 2019/10/12 **/ @Data public class CarType { private String type; } ​​ CarDTO 是DTO类: package cn.felord.mapstruct.entity; import lombok.Data; /** * CarDTO * * @author Felordcn * @since 13:37 2019/10/12 **/

I'm trying to use Lombok with Maven and VRaptor on IntelliJ but it doesn't work. I already read some info in stackoverflow but none solved my problem, i already enabled the Annotation Processor in Intellij but still nothing. I tryied to compile it from command-line too (Windows) and didn't work. I also tryed to create another project without maven and add the library, create some classes for test and it works, compile and run perfectly. Any help? The project has only 2 class, 1 entity and 1 controller Here is my pom.xml <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www

一、安装lombok 1、先下载lombok的jar 放到eclipse的安装路径 2、打开 eclipse.ini文件 添加引入lombok的jar 我这里是这样的： -javaagent:D:\Program Files\eclipse\eclipse\lombok.jar 3、使用 引入pom文件 <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.10</version> </dependency> 代码： 效果： 二、安装阿里巴巴代码扫描规范 第一步：安装插件 Help >> Install New Software 然后在框中输入URL： https://p3c.alibaba.com/plugin/eclipse/update 安装完成后，重启Eclipse！ 使用： 点击文件右键扫描即可， 取消：close project 再 open 就OK了。 做技术最难能可贵的就是持续的学习，吸收知识，不断的思考形成自己的理解和模式。 欢迎进QQ群讨论：600922504 来源： https://my.oschina.net/960823/blog/3108322

I recently found out that the lombok.jar ends up in our final artifact, which shouldn't be necessary. In my understanding lombok is compile-time only. <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.14.4</version> </dependency> But when I set it to scope provided, I get strange behaviour in unit tests. They crash with ClassNotFoundExceptions then when trying to resolve java.lang.NoClassDefFoundError: com/svv/esp/serviceimpl/dataimport/common/validation/LongValidator Which maven scope is in general used for lombok? I'm using Oracle JDK build 1.8.0_25

I have following DTOs: @Value public class PracticeResults { @NotNull Map<Long, Boolean> wordAnswers; } @Value public class ProfileMetaDto { @NotEmpty String name; @Email String email; @Size(min = 5) String password; } @Value is a Lombok annotation which generates a constructor. Which means that this class doesn't have a no-arg constructor. I used Spring Boot 1.4.3.RELEASE and ObjectMapper bean was able to deserialize such object from json. After the upgrade to Spring Boot 2.0.0.M7 I receive following exception: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct