Question

我试图建立一个简单的maven项目，但遇到了一些困难。我正在查看本网站的说明 - ＆gt; http://www.mkyong.com/hibernate/quick-start-maven-hibernate-mysql-example/

但是当我查看结构时，我发现在我的项目结构中，我找不到.project和.classpath文件。我只找到了pom.xml。当我运行项目时，我遇到了一个错误：

Exception in thread "main" java.lang.NoClassDefFoundError: com/henry/directory/App
Caused by: java.lang.ClassNotFoundException: com.henry.directory.App
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

这是我的pom.xml文件：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.henry.directory</groupId>
  <artifactId>FirstMaven</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>FirstMaven</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

      <!-- MySQL database driver -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.9</version>
    </dependency>

    <!-- Hibernate framework -->
    <dependency>
        <groupId>hibernate</groupId>
        <artifactId>hibernate3</artifactId>
        <version>3.2.3.GA</version>
    </dependency>


    <!-- Hibernate library dependecy start -->
    <dependency>
        <groupId>dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>1.6.1</version>
    </dependency>

    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.1.1</version>
    </dependency>

    <dependency>
        <groupId>commons-collections</groupId>
        <artifactId>commons-collections</artifactId>
        <version>3.2.1</version>
    </dependency>

    <dependency>
        <groupId>cglib</groupId>
        <artifactId>cglib</artifactId>
        <version>2.2</version>
    </dependency>
    <!-- Hibernate library dependecy end -->

    <dependency>
        <groupId>javax.transaction</groupId>
        <artifactId>jta</artifactId>
        <version>1.1</version>
    </dependency>   
  </dependencies>
</project>

我希望有人可以帮助我解释为什么找不到课程。

Answer 1

感谢回复，问题是hibernate artifactId不正确。出于某些原因，我不知道，但这正是我目前正在调查的内容..

我的Maven项目的问题

1 个答案: