无法加载配置类

时间:2014-08-30 18:35:31

标签: java spring

我正在关注如何使用Spring的this教程,并根据提供的示例,我得到以下异常:

Exception in thread "main" java.lang.IllegalStateException: Cannot load configuration class: com.tutorialspoint.HelloWorldConfig
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:378)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:263)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:265)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:126)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:609)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
    at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:84)
    at com.tutorialspoint.MainApp.main(MainApp.java:9)
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
    at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)
    at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
    at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:317)
    at org.springframework.context.annotation.ConfigurationClassEnhancer.createClass(ConfigurationClassEnhancer.java:128)
    at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:100)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:368)
    ... 7 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
    at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
    ... 12 more
Caused by: java.lang.SecurityException: class "com.tutorialspoint.HelloWorldConfig$$EnhancerBySpringCGLIB$$b5aece24"'s signer information does not match signer information of other classes in the same package
    at java.lang.ClassLoader.checkCerts(ClassLoader.java:952)
    at java.lang.ClassLoader.preDefineClass(ClassLoader.java:666)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:794)
    ... 18 more

我研究了我的问题并找到了this;有人也和我有同样的问题,它与确保ASM与CGLIB兼容有关。但是我尝试过这个解决方案而且没有用,我甚至使用了与提供的完全相同的版本(GBLIB 2.2.2和ASM 3.3.1)。

为了纠正这个问题,我需要做些什么?


为简单起见,以下是我使用的文件,这些文件是从提供的教程中提取的。

HelloWorldConfig.java

package com.tutorialspoint;
import org.springframework.context.annotation.*;

@Configuration
public class HelloWorldConfig {

    @Bean
    public HelloWorld helloWorld() {
        return new HelloWorld();
    }
}

HelloWorld.java

package com.tutorialspoint;

public class HelloWorld {
    private String message;

    public void setMessage(String message) {
        this.message = message;
    }

    public void getMessage() {
        System.out.println("Your Message : " + message);
    }
}

MainApp.java

package com.tutorialspoint;

import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.*;

public class MainApp {
    public static void main(String[] args) {
        @SuppressWarnings("resource")
        ApplicationContext ctx = new AnnotationConfigApplicationContext(
                HelloWorldConfig.class);

        HelloWorld helloWorld = ctx.getBean(HelloWorld.class);

        helloWorld.setMessage("Hello World!");
        helloWorld.getMessage();
    }
}

同样通过说&#39;但是我已经尝试过这个解决方案并且它没有工作&#39;我的意思是返回完全相同的错误。

2 个答案:

答案 0 :(得分:0)

所以,我会说&#34;其他&#34;你提到过,有一个不同的问题 即使在&#34; Last-Shown-Exception&#34;和你的一样。
但正如您在堆栈跟踪中看到的那样,&#34; source&#34;是 SecurityException

*无法加载配置类* -Error是后果

我认为&#34;代码签名&#34;有问题。在你的项目中 或者,由于ByteCode-Manipulation,标记被破坏了。

<强> PS
当你引用&#34; SignedLibs&#34;有时也会发生这种情况。 &#34; UnsignedLibs&#34;在你的项目中。
在这种情况下,从签名的库中删除签名。

答案 1 :(得分:0)

该项目运行所需的所有jar:
    1)org.springframework.core-3.0.1.RELEASE-A.jar
    2)spring-context-3.0.4.RELEASE.jar
    3)org.springframework.beans-3.0.1.RELEASE-A.jar
    4)commons-logging-1.1.1.jar
    5)asm-3.3.1.jar
    6)cglib-2.2.2.jar

要获取这些jar,请直接将下载的jar添加到您的项目中,或者在pom.xml中提供以下依赖项以自动为您下载它们。

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>3.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.0.4.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2.2</version>
        </dependency>
    </dependencies>

如果尚未存在,请将其添加到您的maven settings.xml文件中:

    <profiles>
        <profile>
            <id>SPRINGLEARN</id>
            <activation>
                <jdk>1.8</jdk>
            </activation>
            <repositories>
                <repository>
                    <id>thirdPartyRepo</id>
                    <name>Third party repository</name>
                    <url>https://repo.spring.io/libs-release/</url>
                    <layout>default</layout>
                    <snapshotPolicy>always</snapshotPolicy>
                </repository>
            </repositories>
            <pluginRepositories>
                <pluginRepository>
                    <id>thirdPartyPluginRepo</id>
                    <name>Third party plugin repository</name>
                    <url>https://repo.spring.io/libs-release/</url>
                    <layout>default</layout>
                    <snapshotPolicy>always</snapshotPolicy>
                </pluginRepository>
            </pluginRepositories>
        </profile>
    </profiles>

之后,只需运行您的项目即可。
-右键单击您的项目->运行方式-> Maven clean
-右键单击您的项目->运行方式-> Maven安装
-右键单击您的项目->运行方式-> Java应用程序