gradle - 如何为io.freefair.lombok设置插件

Question

我正在尝试使用io.freefair.lombok插件，但Gradle 4.10.2出现错误。如何设置？

plugins {
    id 'org.springframework.boot' version '2.2.5.RELEASE'
    id 'io.spring.dependency-management' version '1.0.9.RELEASE'
    id "io.freefair.lombok" version "4.0.0" // error on this line
    id 'java'
}

group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'

repositories {
    mavenCentral()
    mavenLocal()
}

dependencyManagement {
    imports {
        mavenBom 'org.springframework.cloud:spring-cloud-dependencies:Hoxton.SR3'
    }
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
    implementation 'org.springframework.cloud:spring-cloud-starter-openfeign'
    implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml'
    compileOnly 'org.projectlombok:lombok'
    annotationProcessor 'org.projectlombok:lombok'
    runtimeClasspath 'org.springframework.boot:spring-boot-devtools'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

这是错误:

Could not run build action using Gradle distribution 'https://services.gradle.org/distributions/gradle-4.10.2-bin.zip'.
Build file 'C:\Users\user\eclipse-workspace\car-proj\build.gradle' line: 4
An exception occurred applying plugin request [id: 'io.freefair.lombok', version: '5.0.0-rc4']
Failed to apply plugin [class 'io.freefair.gradle.plugins.lombok.LombokBasePlugin']
Could not generate a proxy class for class io.freefair.gradle.plugins.lombok.LombokExtension.
org/gradle/api/provider/MapProperty
org.gradle.api.provider.MapProperty

添加更多文本，所以发布不是大多数代码

Answer 1

您应用的Lombok插件版本可能与您的Gradle版本不兼容。 project website指出，与Gradle 4.10.2兼容的最新版本是2.x分支，尤其是2.9.5。因此，您可以使用该版本或升级到较新的Gradle版本。

您可能还需要升级Gradle以与Spring Boot Gradle插件保持兼容。

Spring Boot’s Gradle plugin requires Gradle 5.x or 6.x (4.10 is also supported but this support is deprecated and will be removed in a future release).

(来自:Spring Boot Gradle Plugin Reference Guide)
更新
在仔细检查了build.gradle之后，您已经在dependencies块中定义了Lombok处理:

compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'

您可以使用此插件或Lombok插件。无需同时应用两者。