java.lang.NoClassDefFoundError：org / springframework / core / env / ConfigurableEnvironment

Question

我正在嘗試使用Spring Boot編寫一個簡單的RESTful服務。 但是，有一條錯誤消息我無法解決。 我一直在研究，看來這是SpringBoot版本之間的沖突，但是我不確定如何擺脫它。

我有這個SpringBootApp：

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * REST Service application
 */
@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

與此pom.xml相關聯：

<?xml version="1.0"?>
<project
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
    xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.websystique.springmvc</groupId>
    <artifactId>Spring4MVCHelloWorldRestServiceDemo</artifactId>
    <packaging>war</packaging>
    <version>1.0.0</version>
    <name>Spring4MVCHelloWorldRestServiceDemo Maven Webapp</name>

    <properties>
        <springframework.version>4.3.0.RELEASE</springframework.version>
        <jackson.library>2.7.5</jackson.library>
        <spring.batch.version>2.1.9.RELEASE</spring.batch.version>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>1.4.0.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${springframework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${springframework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${springframework.version}</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version> <!-- Or whatever JUnit you're using. -->
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.library}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-xml</artifactId>
            <version>${jackson.library}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-core</artifactId>
            <version>${spring.batch.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-beans</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-core</artifactId>
                </exclusion>
            </exclusions>
        </dependency>


    </dependencies>


    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.2</version>
                    <configuration>
                        <source>1.7</source>
                        <target>1.7</target>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>2.4</version>
                    <configuration>
                        <warSourceDirectory>src/main/webapp</warSourceDirectory>
                        <warName>Spring4MVCHelloWorldRestServiceDemo</warName>
                        <failOnMissingWebXml>false</failOnMissingWebXml>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>

        <finalName>Spring4MVCHelloWorldRestServiceDemo</finalName>
    </build>
</project>

對我來說看起來不錯，但出現此錯誤：

Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/core/env/ConfigurableEnvironment
    at com.application.Application.main(Application.java:13)
Caused by: java.lang.ClassNotFoundException: org.springframework.core.env.ConfigurableEnvironment
    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)
    ... 1 more

Answer 1

推薦方法

1. 轉到Spring boot Initialzr站點並選擇Web stack作為依賴項，如下所示 。
2. 由於Spring Boot使用Opinionified依賴項和BOM表的概念，它將自動提取其他依賴項並解決classNotFoundException問題。 在您的情況下，它會錯過Spring-core-4.2.4.RELEASE.jar依賴項。

3. 以全新安裝spring-boot：run -e的身份執行Maven目標，您可以在IDE中找到您的maven依賴項，下面給出了一個示例POM文件。

     <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.example</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>demo</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.0.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-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> < /dependency> </dependencies> <build> <finalName>demo</finalName> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> 

Answer 2

Spring Boot正在運行-

<spring.version>4.3.2.RELEASE</spring.version>

對於-

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>1.4.0.RELEASE</version>
    </dependency>

導入時-

    <springframework.version>4.3.0.RELEASE</springframework.version>

您可以在主pom上進行確認-

https://github.com/spring-projects/spring-boot/blob/v1.4.0.RELEASE/spring-boot-dependencies/pom.xml

您可以在pom中更新春季版本嗎？ 或處理管理Maven依賴項

Answer 3

刪除存儲庫中的springframework文件夾，然后按Alt + F5並更新項目（強制更新快照）。

C:\Users\xxxx\.m2\repository\org\springframework

Answer 4

將boot-starter-parent版本從1.5.1.RELEASE更改為1.4.0.RELEASE。

Answer 5

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.2.RELEASE</version>
  </parent>

請為您的父母嘗試這個

Answer 6

我在Spring Boot 2.1.9.RELEASE中遇到了同樣的問題

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

增加的pom依賴消除了此異常：

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>5.2.0.RELEASE</version>
    </dependency>

編輯 -更好的方法。

還為我清理了具有Spring依賴項解決的問題的Maven存儲庫，無需在pom中添加spring-core 5.2.0.RELEASE。 似乎在回購中有多個spring版本時，會發生一些問題。 同樣，在再次解決依賴項之前，請不要忘記清理項目。

rm -rf ~/.m2/repository/org/springframework/

Answer 7

我將runnig版本2.0.0的boot-starter-parent配置更改為1.4.0，並且能夠運行Java應用程序並擺脫了此錯誤

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.0.RELEASE</version>  <!-- changed it to version 1.4.0 from 2.0.0-->
    <relativePath/> <!-- lookup parent from repository -->
</parent>