问题

我在尝试使用Gradle构建我的Spring Boot项目时遇到了以下错误。我从Spring Initializer获取了build.gradle文件。

> 无法解析配置项 ':classpath' 的所有构件。
> 找不到 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)。
已在以下位置中搜索：
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

请查看我的Gradle构建文件：

plugins {
    id &#39;org.springframework.boot&#39; version &#39;2.3.0.BUILD-SNAPSHOT&#39;
    id &#39;io.spring.dependency-management&#39; version &#39;1.0.9.RELEASE&#39;
    id &#39;java&#39;
}

group = &#39;com.mycompany&#39;
version = &#39;0.0.1-SNAPSHOT&#39; //TODO 在这个项目中如何使用版本控制？
sourceCompatibility = &#39;1.8&#39;

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
    maven { url &#39;https://repo.spring.io/milestone&#39; }
    maven { url &#39;https://repo.spring.io/snapshot&#39; }
}

dependencies {
    implementation &#39;org.springframework.boot:spring-boot-starter-integration&#39;
    implementation &#39;org.springframework.boot:spring-boot-starter-web&#39;
    implementation &#39;org.springframework.kafka:spring-kafka&#39;
    implementation &#39;org.springframework.boot:spring-boot-starter-aop&#39;

    compileOnly &#39;org.projectlombok:lombok&#39;
    annotationProcessor &#39;org.projectlombok:lombok&#39;
    testImplementation(&#39;org.springframework.boot:spring-boot-starter-test&#39;) {
        exclude group: &#39;org.junit.vintage&#39;, module: &#39;junit-vintage-engine&#39;
    }
    testImplementation (&#39;org.springframework.integration:spring-integration-test&#39;){
        exclude group: &#39;org.junit.vintage&#39;, module: &#39;junit-vintage-engine&#39;
    }
    testImplementation (&#39;org.springframework.kafka:spring-kafka-test&#39;){
        exclude group: &#39;org.junit.vintage&#39;, module: &#39;junit-vintage-engine&#39;
    }
    testImplementation group: &#39;org.mockito&#39;, name: &#39;mockito-all&#39;, version: &#39;1.10.19&#39;
}

test {
    useJUnitPlatform()
}

英文:

I am running into the following error when i try to build my spring boot project in gradle. I got the build.gradle from the spring initilizer.

> 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

Please find my gradle build

plugins {
    id &#39;org.springframework.boot&#39; version &#39;2.3.0.BUILD-SNAPSHOT&#39;
    id &#39;io.spring.dependency-management&#39; version &#39;1.0.9.RELEASE&#39;
    id &#39;java&#39;
}

group = &#39;com.mycompany&#39;
version = &#39;0.0.1-SNAPSHOT&#39; //TODO how does verioning work in this project?
sourceCompatibility = &#39;1.8&#39;

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
    maven { url &#39;https://repo.spring.io/milestone&#39; }
    maven { url &#39;https://repo.spring.io/snapshot&#39; }
}

dependencies {
    implementation &#39;org.springframework.boot:spring-boot-starter-integration&#39;
    implementation &#39;org.springframework.boot:spring-boot-starter-web&#39;
    implementation &#39;org.springframework.kafka:spring-kafka&#39;
    implementation &#39;org.springframework.boot:spring-boot-starter-aop&#39;

    compileOnly &#39;org.projectlombok:lombok&#39;
    annotationProcessor &#39;org.projectlombok:lombok&#39;
    testImplementation(&#39;org.springframework.boot:spring-boot-starter-test&#39;) {
        exclude group: &#39;org.junit.vintage&#39;, module: &#39;junit-vintage-engine&#39;
    }
    testImplementation (&#39;org.springframework.integration:spring-integration-test&#39;){
        exclude group: &#39;org.junit.vintage&#39;, module: &#39;junit-vintage-engine&#39;
    }
    testImplementation (&#39;org.springframework.kafka:spring-kafka-test&#39;){
        exclude group: &#39;org.junit.vintage&#39;, module: &#39;junit-vintage-engine&#39;
    }
    testImplementation group: &#39;org.mockito&#39;, name: &#39;mockito-all&#39;, version: &#39;1.10.19&#39;
}

test {
    useJUnitPlatform()
}

答案1

得分: 0

如果您没有特殊原因要使用特定的 SNAPSHOT 版本，我建议使用 release 或 milestone 版本。

SNAPSHOT 构建非常不稳定。如果您想查看 Spring Boot 的新 2.3 版本，您可能应该使用里程碑版本。对于今天，它可能是 2.3.0.M4。

为此，将 org.springframework.boot 插件版本更改为以下内容：

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

英文:

If you do not have a special reason to use specifically the SNAPSHOT version I suggest using release or milestone.

SNAPSHOT builds are quite unstable. If you want to take a look at the new 2.3 version of the Spring Boot you should probably use the milestone version. For today it would be 2.3.0.M4.

For that, change org.springframework.boot plugin version like this:

id &#39;org.springframework.boot&#39; version &#39;2.3.0.M4&#39;

专注分享java语言的经验与见解，让所有开发者获益！

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

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