java - 找不到spring-boot-2.3.0.BUILD-SNAPSHOT.jar错误

Question

我尝试在gradle中构建spring boot项目时遇到以下错误。我从spring initilizer得到了build.gradle。

Could not resolve all artifacts for configuration ':classpath'. Could not find spring-boot-gradle-plugin-2.3.0.BUILD-SNAPSHOT.jar (org.springframework.boot:spring-boot-gradle-plugin:2.3.0.BUILD-SNAPSHOT:20200409.145011-519). Searched in the following locations: https://repo.spring.io/snapshot/org/springframework/boot/spring-boot-gradle-plugin/2.3.0.BUILD-SNAPSHOT/spring-boot-gradle-plugin-2.3.0.BUILD-20200409.145011-519.jar

请找到我的gradle版本

plugins {
    id 'org.springframework.boot' version '2.3.0.BUILD-SNAPSHOT'
    id 'io.spring.dependency-management' version '1.0.9.RELEASE'
    id 'java'
}

group = 'com.mycompany'
version = '0.0.1-SNAPSHOT' //TODO how does verioning work in this project?
sourceCompatibility = '1.8'

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
    maven { url 'https://repo.spring.io/milestone' }
    maven { url 'https://repo.spring.io/snapshot' }
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-integration'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.kafka:spring-kafka'
    implementation 'org.springframework.boot:spring-boot-starter-aop'

    compileOnly 'org.projectlombok:lombok'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation('org.springframework.boot:spring-boot-starter-test') {
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
    testImplementation ('org.springframework.integration:spring-integration-test'){
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
    testImplementation ('org.springframework.kafka:spring-kafka-test'){
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
    testImplementation group: 'org.mockito', name: 'mockito-all', version: '1.10.19'
}

test {
    useJUnitPlatform()
}

Answer 1

如果您没有特殊原因要专门使用SNAPSHOT版本，建议您使用release或Milestone。

SNAPSHOT版本非常不稳定。如果要查看Spring Boot的新2.3版本，则可能应该使用里程碑版本。今天将是2.3.0.M4。

为此，请像这样更改org.springframework.boot插件版本:

id 'org.springframework.boot' version '2.3.0.M4'