2. 科技
    3. 2.2.6.RELEASE版本的springboot 单元测试报错 java.lang.NoClassDefFoundError: orgjunitplatformenginesupport

    2.2.6.RELEASE版本的springboot 单元测试报错 java.lang.NoClassDefFoundError: orgjunitplatformenginesupport

    科技2022-07-20  94

    新建了一个2.2.6.RELEASE版本的springboot项目，在用单元测试的时候，发现没有@RunWith注解，于是，就添加了

     

    <dependency>

    <groupId>junit</groupId>

    <artifactId>junit</artifactId>

    <scope>test</scope>

    </dependency>

    好，现在有这个注解了，运行测试方法，报错java.lang.NoClassDefFoundError: org/junit/platform/engine/support/filter/ExclusionReasonConsumingFilter  

    警告: TestEngine with ID 'junit-vintage' failed to discover tests

    java.lang.NoClassDefFoundError: org/junit/platform/engine/support/filter/ExclusionReasonConsumingFilter

    at org.junit.vintage.engine.discovery.VintageDiscoverer.createTestClassPredicate(VintageDiscoverer.java:83)

    at org.junit.vintage.engine.discovery.VintageDiscoverer.collectTestClasses(VintageDiscoverer.java:61)

    at org.junit.vintage.engine.discovery.VintageDiscoverer.discover(VintageDiscoverer.java:51)

    at org.junit.vintage.engine.VintageTestEngine.discover(VintageTestEngine.java:65)

    at org.junit.platform.launcher.core.DefaultLauncher.discoverEngineRoot(DefaultLauncher.java:130)

    at org.junit.platform.launcher.core.DefaultLauncher.discoverRoot(DefaultLauncher.java:117)

    at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:82)

    at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:48)

    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)

    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)

    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

    Caused by: java.lang.ClassNotFoundException: org.junit.platform.engine.support.filter.ExclusionReasonConsumingFilter

    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

    ... 11 more

    其实实际原因是，这个版本的springboot此时默认的是JUnit5，而@RunWith是junit4里面的东西。解决方式有两种，要么你不要用这个@RunWith注解，要么你把pom文件里面的那个org.junit.vintage注释掉。

     

    <dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-test</artifactId>

    <scope>test</scope>

    <!--<exclusions>-->

    <!--<exclusion>-->

    <!--<groupId>org.junit.vintage</groupId>-->

    <!--<artifactId>junit-vintage-engine</artifactId>-->

    <!--</exclusion>-->

    <!--</exclusions>-->

    </dependency>

    完整代码可看

    https://mp.csdn.net/console/editor/html/108922901

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