2025-10-02 18:11:58.180 ERROR 11480 --- [           main] o.s.boot.SpringApplication               : Application run failed

java.lang.IllegalStateException: Cannot load configuration class: com.daqin.demo251001.Demo251001Application

at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:414) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:254) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:282) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:126) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:692) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:530) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at com.daqin.demo251001.Demo251001Application.main(Demo251001Application.java:12) ~[classes/:na]

Caused by: java.lang.ExceptionInInitializerError: null

at org.springframework.context.annotation.ConfigurationClassEnhancer.newEnhancer(ConfigurationClassEnhancer.java:122) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:110) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:403) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

... 12 common frames omitted

Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.reflect.InaccessibleObjectException-->Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @192d43ce

at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:464) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:336) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:93) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:91) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]

at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:116) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:291) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.KeyFactory$Generator.create(KeyFactory.java:221) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:174) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:153) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.proxy.Enhancer.<clinit>(Enhancer.java:73) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

... 15 common frames omitted

Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @192d43ce

at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) ~[na:na]

at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[na:na]

at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199) ~[na:na]

at java.base/java.lang.reflect.Method.setAccessible(Method.java:193) ~[na:na]

at org.springframework.cglib.core.ReflectUtils$1.run(ReflectUtils.java:61) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at java.base/java.security.AccessController.doPrivileged(AccessController.java:569) ~[na:na]

at org.springframework.cglib.core.ReflectUtils.<clinit>(ReflectUtils.java:52) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:243) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:329) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]

... 27 common frames omitted

2025-10-02 18:11:58.181  INFO 11480 --- [           main] ConfigServletWebServerApplicationContext : Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@389c4eb1: startup date [Thu Oct 02 18:11:57 CST 2025]; root of context hierarchy

Process finished with exit code 1

根据错误日志分析，这是Spring Boot与JDK 17版本不兼容导致的问题。以下是解决方案：

## 错误分析

- **根本原因**：Spring Boot 2.0.6版本与JDK 17不兼容

- **具体错误**：`InaccessibleObjectException` 表明JDK 17的模块系统阻止了Spring CGLIB库访问`ClassLoader.defineClass`方法

## 解决方案

### 1. 降低JDK版本

将项目改回使用JDK 8：

- 在IDEA中将 `Project SDK` 设置为JDK 8

- 在 [pom.xml](file://D:\SUM\代码\demo251001\pom.xml) 中设置：

```xml

<properties>

    <maven.compiler.source>8</maven.compiler.source>

    <maven.compiler.target>8</maven.compiler.target>

    <java.version>8</java.version>

</properties>

```

### 2. 升级Spring Boot版本（推荐）

升级到支持JDK 17的Spring Boot版本：

- 修改 [pom.xml](file://D:\SUM\代码\demo251001\pom.xml) 中的Spring Boot版本到2.5+：

```xml

<parent>

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

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

    <version>2.7.0</version>

    <relativePath/>

</parent>

```

### 3. 添加JVM启动参数（临时方案）

如果必须使用JDK 17，可以添加以下JVM参数：

```

--add-opens java.base/java.lang=ALL-UNNAMED

```

**建议采用方案1或方案2**，这样可以彻底解决兼容性问题。