3

我正在尝试使用 java 配置运行一个非常简单的 Spring 应用程序。我收到以下异常，我不明白为什么。据我所知，我拥有所有必需的依赖项

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() );
}

异常发生在 - AnnotationConfigApplicationContext 函数调用

值得一提：我的 POM.XML 文件中有以下依赖项。

  <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-asm</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

还有一个例外：

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
4

5 回答 5

2

I actually don't really know what solved the problem, but I did go to some tutorial website that does the same thing and just copied their pom file dependencies. I still don't understand what was missing.

In any case Balint Bako might be right with his answer but i am not sure, i got it solved by the time I got back to StackOverflow.

Here is the pom file

  <!-- Spring 3 dependencies -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!-- JavaConfig need this library -->
    <dependency>
        <groupId>cglib</groupId>
        <artifactId>cglib</artifactId>
        <version>2.2.2</version>
    </dependency>

Good luck

于 2013-06-04T13:22:48.313 回答
1

根据例外情况，似乎缺少与 ASM 相关的 jar。您可以添加 asm-all

<dependency>
   <groupId>asm</groupId>
   <artifactId>asm-all</artifactId>
   <version>2.1</version>
</dependency>
于 2013-06-04T11:17:26.613 回答
1

它与我一起使用以下依赖项。谢谢鲁本斯马里乌佐。你破解了 cglib 版本问题。它从未与3.0一起使用，但与2.2.2一起使用

<dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>3.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>3.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2.2</version>
        </dependency>

    </dependencies>
于 2018-09-19T15:23:01.727 回答
0

你也需要弹簧芯。

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-core</artifactId>
    <version>${org.springframework.version}</version>
</dependency>
于 2013-06-04T11:20:56.120 回答
0

我在使用 Spock 单元测试框架和使用 Spy 测试时遇到了同样的问题。我通过将它添加到我的 Maven 依赖项中来克服这个问题。

 <dependency>
    <groupId>cglib</groupId>
    <artifactId>cglib</artifactId>
    <version>3.3.0</version>
</dependency>

<dependency>
    <groupId>cglib</groupId>
    <artifactId>cglib-nodep</artifactId>
    <version>3.3.0</version>
</dependency>
于 2022-02-26T06:49:24.317 回答