Question

我有一个spring boot项目，并遇到一些与javax servlet过滤器有关的错误。

是某种版本兼容性还是在pom文件中缺少某些内容？

以下是来自控制台的日志和pom文件。

我一直在搜索，找不到任何东西。

Exception in thread "main" java.lang.IllegalStateException: Cannot load configuration class: org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerSecurityConfiguration
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:403)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:249)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:281)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:125)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:525)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
    at com.abc.application.Application.main(Application.java:15)
Caused by: java.lang.IllegalStateException: Unable to load cache item
    at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:79)
    at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34)
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:116)
    at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:291)
    at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:480)
    at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:337)
    at org.springframework.context.annotation.ConfigurationClassEnhancer.createClass(ConfigurationClassEnhancer.java:138)
    at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:110)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:393)
    ... 11 more
Caused by: java.lang.NoClassDefFoundError: javax/servlet/Filter
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
    at java.lang.Class.getDeclaredConstructors(Class.java:2020)
    at org.springframework.cglib.proxy.Enhancer.generateClass(Enhancer.java:566)
    at org.springframework.cglib.transform.TransformingClassGenerator.generateClass(TransformingClassGenerator.java:33)
    at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanFactoryAwareGeneratorStrategy.generate(ConfigurationClassEnhancer.java:252)
    at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:329)
    at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:492)
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:93)
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:91)
    at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61)
    ... 19 more
Caused by: java.lang.ClassNotFoundException: javax.servlet.Filter
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 33 more

Answer 1

通常，可以在嵌入式tomcat jar中找到此Filter类。因此，请确保您的应用程序（jar）包含以下文件：

打开已编译的spring boot应用程序的jar文件，并检查名为tomcat-embed-core的jar是否位于BOOT-INF\lib文件夹中。

只要您运行的是tomcat，当然，这个答案是有效的。+对于春季启动应用程序，请使用JAR工件（对于WAR，文件夹是不同的，可能是WEB-INF/lib，尽管我从未使用过Spring Boot的WAR。应用程序，所以我在这里可能是错的）

Answer 2

对我来说，问题出在pom文件中（在spring boot 2项目中），当我在2.1.9版中使用父级Spring Boot时，在引擎盖下使用5.1.10.RELEASE版中的spring-core

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

我有依赖性：

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>5.2.0.RELEASE</version>
        </dependency>

删除已解决的问题

Answer 3

当我尝试将Spring Boot版本升级到最新版本时，我在Gradle项目中遇到了类似的错误（可能也是Maven的问题）。

快速gradle clean为我解决了这个问题。

Spring Boot：无法加载缓存项：javax / servlet / Filter

3 个答案: