Java 構成で非常に単純な Spring アプリケーションを実行しようとしています。次の例外が発生しましたが、その理由がわかりません。私が知る限り、必要な依存関係はすべて揃っています
public static void main(String[] args) { System.out.println( "Hello World from main!" ); ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class); HelloWorld helloWorld = ctx.getBean(HelloWorld.class); System.out.println( helloWorld.getMessage() ); }
例外は - AnnotationConfigApplicationContext 関数呼び出しで発生します
言及する価値があります: POM.XML ファイルに次の依存関係があります。
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-asm</artifactId> <version>${org.springframework.version}</version> </dependency>
そして例外:
Exception in thread "main" java.lang.IllegalStateException: Cannot load configuration class: spring.play.springStart.AppConfig at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:313) at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:197) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:620) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:446) at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:73) at spring.play.springStart.App.main(App.java:14) Caused by: java.lang.NoClassDefFoundError: org/objectweb/asm/util/TraceClassVisitor at net.sf.cglib.core.DebuggingClassWriter.toByteArray(DebuggingClassWriter.java:73) at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:26) at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216) at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:144) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:116) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104) at net.sf.cglib.proxy.Enhancer.<clinit>(Enhancer.java:69) at org.springframework.context.annotation.ConfigurationClassEnhancer.newEnhancer(ConfigurationClassEnhancer.java:136) at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:109) at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:303) ... 6 more Caused by: java.lang.ClassNotFoundException: org.objectweb.asm.util.TraceClassVisitor 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) ... 17 more