Question

我是Spring的新手，在运行简单的Spring Boot Web应用程序时遇到ClassNotFoundException。我已经验证了maven本地存储库，但问题仍然存在。这是我的pom.xml：

<groupId>com.tb</groupId>
<artifactId>igweb</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>igweb</name>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.8.RELEASE</version>
    <relativePath/>
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
    <tomcat.version>8.5.0</tomcat.version>
</properties>

<dependencies>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- JSTL tag lib -->
    <dependency>
      <groupId>javax.servlet.jsp.jstl</groupId>
      <artifactId>javax.servlet.jsp.jstl-api</artifactId>
      <version>1.2.1</version>
    </dependency>

    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>

    <!-- Tomcat for JSP rendering -->
    <dependency>
      <groupId>org.apache.tomcat.embed</groupId>
      <artifactId>tomcat-embed-jasper</artifactId>
      <scope>provided</scope>
    </dependency>

</dependencies>

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


</project>

我的主要课程是：包com.tb.igweb;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class IgwebApplication {

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

在eclipse上运行相同时，我遇到以下异常：

Exception in thread "main" java.lang.NoClassDefFoundError: 
    org/springframework/util/ClassUtils
    at 
 org.springframework.boot.SpringApplication.deduceWebEnvironment(SpringApplication.java:257)
    at org.springframework.boot.SpringApplication.initialize(SpringApplication.java:248)
    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 com.tb.igweb.IgwebApplication.main(IgwebApplication.java:10)
Caused by: java.lang.ClassNotFoundException: org.springframework.util.ClassUtils
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 6 more

java.lang.ClassNotFoundException：org.springframework.util.ClassUtils

0 个答案: