Question

我开始学习Spring Framework作为我的第一个应用程序。我试图获得定义的Bean计数，但我无法运行它。

import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;


public class runDemo {
    public static void main(String[] args) {
        ApplicationContext context = new AnnotationConfigApplicationContext();
        System.out.println(context.getBeanDefinitionCount());
    }
}

和我的gradle文件

buildscript {
ext {
    springBootVersion = '1.5.6.RELEASE'
}
repositories {
    mavenCentral()
}
dependencies {
    classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'org.springframework.boot'

version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8

repositories {
mavenCentral()
}


dependencies {

compile('org.springframework.boot:spring-boot-starter')
testCompile('org.springframework.boot:spring-boot-starter-test')
}

当我运行时：

Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/context/ApplicationContext
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:123)
Caused by: java.lang.ClassNotFoundException: org.springframework.context.ApplicationContext ...

我在外部库中加载了spring context和spring core。

编辑：我升级到Intellij的想法2017.2，它仍然给出相同的错误

Answer 1

我换了

compile('org.springframework.boot:spring-boot-starter')

带

compile('org.springframework.boot:spring-boot-starter-web')

应用程序上下文

1 个答案: