Exception in thread "main" java.lang.NoClassDefFoundError:
org/junit/runner/JUnitCore
at springbook.learningtest.junit.JUnitTest.main(JUnitTest.java:7)
Caused by: java.lang.ClassNotFoundException: org.junit.runner.JUnitCore
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)
... 1 more
我在junit的java.lang.NoClassDefFoundError中发现了类似的错误。但是我已经使用添加junit
到了我的项目中maven
。然后,我检查了Maven依赖关系,发现其中有junit-4.12.jar。我尝试了junit
和的其他不同版本spring
,但是所有尝试都失败了。下面附上我的代码。
<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>TobySpring3.1</groupId>
<artifactId>TobySpring3.1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source />
<target />
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- MySQL -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.45</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- JUNIT -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<!-- CGLIB -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
</dependencies>
</project>
以上是我的 pom.xml
package springbook.learningtest.junit;
import org.junit.runner.JUnitCore;
public class JUnitTest {
public static void main(String[] args) {
JUnitCore.main("springbook.user.test.UserDaoTest");
}
}
。
package springbook.user.test;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import java.sql.SQLException;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.GenericXmlApplicationContext;
import springbook.user.dao.UserDao;
import springbook.user.domain.User;
public class UserDaoTest {
@Test
public void addAndGet() throws ClassNotFoundException, SQLException {
ApplicationContext context = new GenericXmlApplicationContext("applicationContext.xml");
UserDao dao = context.getBean("userDao", UserDao.class);
User user = new User();
user.setId("gyumee");
user.setName("name");
user.setPassword("password");
dao.add(user);
User user2 = dao.get(user.getId());
assertThat(user2.getName(), is(user.getName()));
assertThat(user2.getPassword(), is(user.getPassword()));
}
}
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