无法在 gradle.properties 中保留依赖项版本

Question

我需要在 gradle.properties 中保留依赖项的版本。

gradle.properties:

springBootVersion = '2.1.9.RELEASE'

build.gradle:

plugins {
    id 'io.spring.dependency-management' version '1.0.8.RELEASE'
    id 'org.springframework.boot' version '2.1.9.RELEASE'
}

subprojects {
    repositories {
        mavenCentral()
    }

    configurations.all {
        resolutionStrategy {
            failOnVersionConflict()
        }
    }

    apply plugin: 'java'
    apply plugin: 'io.spring.dependency-management'

    dependencyManagement {
        dependencies {
            dependency "org.springframework.boot:spring-boot-starter-web:${springBootVersion}"
            dependency "org.springframework.boot:spring-boot-starter-test:${springBootVersion}"
        }
    }

    sourceCompatibility = 11
    targetCompatibility = 11

    tasks.withType(JavaCompile){
        options.encoding = 'UTF-8'
    }
}

settings.gradle:

include 'api'

api/build.gradle:

apply plugin: 'org.springframework.boot'

archivesBaseName = 'phone-gift-processing-api'

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-web'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

./gradlew clean build 的输出：

> Task :api:compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':api:compileJava'.
> Could not resolve all files for configuration ':api:compileClasspath'.
   > Could not find org.springframework.boot:spring-boot-starter-web:'2.1.9.RELEASE'.
     Required by:
         project :api

即，Gradle 使用 springBootVersion，但由于某种原因未能绑定依赖项。

当我用 ${springBootVersion} 替换 ${springBootVersion} 时，构建成功。

Answer 1

您在 gradle.properties 中的格式有误。而不是这个：

springBootVersion = '2.1.9.RELEASE'

试试这个：

springBootVersion=2.1.9.RELEASE

（空格是可选的，但重要的是你不应该在值周围加上引号。）

无法在 gradle.properties 中保留依赖项版本

Cannot keep dependency version in gradle.properties

java

dependency-management

gradle