在eclipse中,我创建了一个新的spring boot starter项目 . Spring Boot Version是 1.5.9.RELEASE ,我包含的依赖是 spring-boot-starter-web (这都是在eclipse中由Spring Project向导完成的,所以很可能没有错误) . 当我将它作为Spring Boot应用程序运行时,我收到错误

Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationContextInitializer : org.springframework.boot.context.ConfigurationWarningsApplicationContextInitializer
    at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:413)
    at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:392)
    at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:383)
    at org.springframework.boot.SpringApplication.initialize(SpringApplication.java:249)
    at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:225)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
    at spring.demo.rest.DemoApplication.main(DemoApplication.java:10)
Caused by: java.lang.NoClassDefFoundError: org/springframework/beans/BeanUtils
    at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:409)
    ... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.beans.BeanUtils
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 8 more

BeanUtils在spring-beans库中,它是明确导入的

spring-beans-4.3.13.RELEASE.jar in maven dependencies

enter image description here

这是我的pom

<?xml version="1.0" encoding="UTF-8"?>

http://maven.apache.org/xsd/maven-4.0.0.xsd“> 4.0.0

<groupId>spring.demo.rest</groupId>
<artifactId>restdemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>demo</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.9.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

注意:我支持公司代理,而且我们已经反映了maven中央回购 . 我在settings.xml中设置了代理

EDIT

我注意到 spring-beans4.3.13.RELEASE.jar 已安装到 org/springframeword/spring-beans/4.3.13.RELEASE 但应用程序在 org/springframework/beans/BeanUtils 中查找 BeanUtils . 必须有一些版本不兼容吗?