配置 kapt 以处理 lombok 注释
Configuring kapt to process lombok annotations
这是对这些问题的跟进:
似乎 kapt 从那以后有了发展,现在它甚至在 Maven 中得到了支持。我正在尝试这个(注意配置中的 Lombok 注释处理器):
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>kapt</id>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>${project.basedir}/src/main/java</sourceDir>
<sourceDir>${project.basedir}/src/main/kotlin</sourceDir>
</sourceDirs>
<annotationProcessors>
<annotationProcessor>lombok.core.AnnotationProcessor</annotationProcessor>
</annotationProcessors>
</configuration>
</execution>
...
</plugin>
但好像还是没有效果,Lombok @Getter
仍然被忽略,如相关问题中所述。
有什么可以做的吗?
因此,如果您希望在 Kotlin 类 上使用 Lombok 注释,这应该可行:
<execution>
<id>kapt</id>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>src/main/kotlin</sourceDir>
<sourceDir>src/main/java</sourceDir>
</sourceDirs>
<annotationProcessors>
<annotationProcessor>lombok.launch.AnnotationProcessorHider$AnnotationProcessor</annotationProcessor>
</annotationProcessors>
<annotationProcessorPaths>
<annotationProcessorPath>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</annotationProcessorPath>
</annotationProcessorPaths>
</configuration>
</execution>
如果需要在Kotlin代码中使用Lombok 类,需要使用delombok:
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>${lombok.version}.0</version>
<executions>
<execution>
<id>delombok</id>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<formatPreferences>
<javaLangAsFQN>skip</javaLangAsFQN>
</formatPreferences>
<verbose>true</verbose>
</configuration>
</execution>
<execution>
<id>test-delombok</id>
<phase>generate-test-sources</phase>
<goals>
<goal>testDelombok</goal>
</goals>
<configuration>
<verbose>true</verbose>
</configuration>
</execution>
</executions>
</plugin>
在这种情况下,您根本不需要 kapt。对我来说就像一个魅力。
经过大量谷歌搜索后,我想出了这个解决方案,它允许同一模块中的 lombok 增强 java 和 kotlin 代码相互调用:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ericytsang</groupId>
<artifactId>playground</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>com.ericytsang playground</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<kotlin.version>1.2.50</kotlin.version>
<junit.version>4.12</junit.version>
<lombok.version>1.16.8</lombok.version>
</properties>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test-junit</artifactId>
<version>${kotlin.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>${lombok.version}.0</version>
<executions>
<execution>
<id>delombok</id>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<sourceDirectory>src/main/java</sourceDirectory>
<outputDirectory>${project.build.directory}/delombok-main</outputDirectory>
<addOutputDirectory>false</addOutputDirectory>
</configuration>
</execution>
<execution>
<id>delombok-test</id>
<phase>generate-test-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<sourceDirectory>src/test/java</sourceDirectory>
<outputDirectory>${project.build.directory}/delombok-test</outputDirectory>
<addOutputDirectory>false</addOutputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>${project.build.directory}/delombok-main</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>${project.build.directory}/delombok-test</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
实现后,修改了多次
- 我想将我的源代码保留在
src/main/java
而不是 src/main/lombok
,所以我在 lombok 配置中添加了 <sourceDirectory>src/main/java</sourceDirectory>
元素。
- 添加上述配置导致重复 class 编译错误,因为编译器正在编译 delmboked 代码以及
src/main/java
中的代码...我只希望它编译 delmboked 代码。 ..但我也希望IDE忽略delomboked代码....所以我将<addOutputDirectory>false</addOutputDirectory>
添加到lombok插件,并将<sourceDirs>${project.build.directory}/delombok-main</sourceDirs>
添加到kotlin插件。
这是对这些问题的跟进:
似乎 kapt 从那以后有了发展,现在它甚至在 Maven 中得到了支持。我正在尝试这个(注意配置中的 Lombok 注释处理器):
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>kapt</id>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>${project.basedir}/src/main/java</sourceDir>
<sourceDir>${project.basedir}/src/main/kotlin</sourceDir>
</sourceDirs>
<annotationProcessors>
<annotationProcessor>lombok.core.AnnotationProcessor</annotationProcessor>
</annotationProcessors>
</configuration>
</execution>
...
</plugin>
但好像还是没有效果,Lombok @Getter
仍然被忽略,如相关问题中所述。
有什么可以做的吗?
因此,如果您希望在 Kotlin 类 上使用 Lombok 注释,这应该可行:
<execution>
<id>kapt</id>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>src/main/kotlin</sourceDir>
<sourceDir>src/main/java</sourceDir>
</sourceDirs>
<annotationProcessors>
<annotationProcessor>lombok.launch.AnnotationProcessorHider$AnnotationProcessor</annotationProcessor>
</annotationProcessors>
<annotationProcessorPaths>
<annotationProcessorPath>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</annotationProcessorPath>
</annotationProcessorPaths>
</configuration>
</execution>
如果需要在Kotlin代码中使用Lombok 类,需要使用delombok:
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>${lombok.version}.0</version>
<executions>
<execution>
<id>delombok</id>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<formatPreferences>
<javaLangAsFQN>skip</javaLangAsFQN>
</formatPreferences>
<verbose>true</verbose>
</configuration>
</execution>
<execution>
<id>test-delombok</id>
<phase>generate-test-sources</phase>
<goals>
<goal>testDelombok</goal>
</goals>
<configuration>
<verbose>true</verbose>
</configuration>
</execution>
</executions>
</plugin>
在这种情况下,您根本不需要 kapt。对我来说就像一个魅力。
经过大量谷歌搜索后,我想出了这个解决方案,它允许同一模块中的 lombok 增强 java 和 kotlin 代码相互调用:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ericytsang</groupId>
<artifactId>playground</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>com.ericytsang playground</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<kotlin.version>1.2.50</kotlin.version>
<junit.version>4.12</junit.version>
<lombok.version>1.16.8</lombok.version>
</properties>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test-junit</artifactId>
<version>${kotlin.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>${lombok.version}.0</version>
<executions>
<execution>
<id>delombok</id>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<sourceDirectory>src/main/java</sourceDirectory>
<outputDirectory>${project.build.directory}/delombok-main</outputDirectory>
<addOutputDirectory>false</addOutputDirectory>
</configuration>
</execution>
<execution>
<id>delombok-test</id>
<phase>generate-test-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<sourceDirectory>src/test/java</sourceDirectory>
<outputDirectory>${project.build.directory}/delombok-test</outputDirectory>
<addOutputDirectory>false</addOutputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>${project.build.directory}/delombok-main</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>${project.build.directory}/delombok-test</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
实现后
- 我想将我的源代码保留在
src/main/java
而不是src/main/lombok
,所以我在 lombok 配置中添加了<sourceDirectory>src/main/java</sourceDirectory>
元素。 - 添加上述配置导致重复 class 编译错误,因为编译器正在编译 delmboked 代码以及
src/main/java
中的代码...我只希望它编译 delmboked 代码。 ..但我也希望IDE忽略delomboked代码....所以我将<addOutputDirectory>false</addOutputDirectory>
添加到lombok插件,并将<sourceDirs>${project.build.directory}/delombok-main</sourceDirs>
添加到kotlin插件。