无法加载配置类错误spring boot
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【中文标题】无法加载配置类错误spring boot【英文标题】：Cannot load configuration class error spring boot 【发布时间】：2021-10-02 05:16:21 【问题描述】：我正在开发一个 Spring Boot 项目，我正在将我的 api 与谷歌日历 api 集成。在运行应用程序时，我收到此错误：
java.lang.IllegalStateException: Cannot load configuration class: com.api.GoogleCalApplication
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:403) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:249) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:281) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:125) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:686) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at com.api.GoogleCalApplication.main(GoogleCalApplication.java:10) ~[classes/:na]
Caused by: java.lang.ExceptionInInitializerError: null
at org.springframework.context.annotation.ConfigurationClassEnhancer.newEnhancer(ConfigurationClassEnhancer.java:122) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:110) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:393) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
... 12 common frames omitted
Caused by: java.lang.IllegalStateException: Unable to load cache item
at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:79) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:116) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:291) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.KeyFactory$Generator.create(KeyFactory.java:221) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:174) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:153) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.proxy.Enhancer.<clinit>(Enhancer.java:73) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
... 15 common frames omitted
Caused by: java.lang.ExceptionInInitializerError: null
at org.springframework.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:243) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:329) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:93) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:91) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.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-4.3.7.RELEASE.jar:4.3.7.RELEASE]
... 22 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 @7a1ebcd8
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357) ~[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:54) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at java.base/java.security.AccessController.doPrivileged(AccessController.java:312) ~[na:na]
at org.springframework.cglib.core.ReflectUtils.<clinit>(ReflectUtils.java:44) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
... 30 common frames omitted
2021-07-26 14:09:13.625 INFO 8492 --- [ main] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7bedc48a: startup date [Mon Jul 26 14:09:12 IST 2021]; root of context hierarchy
2021-07-26 14:09:13.636 WARN 8492 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception thrown from LifecycleProcessor on context close
java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7bedc48a: startup date [Mon Jul 26 14:09:12 IST 2021]; root of context hierarchy
at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:417) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1002) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:794) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:325) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at com.api.GoogleCalApplication.main(GoogleCalApplication.java:10) ~[classes/:na]
2021-07-26 14:09:13.638 ERROR 8492 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception
java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7bedc48a: startup date [Mon Jul 26 14:09:12 IST 2021]; root of context hierarchy
at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:404) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction(ApplicationListenerDetector.java:97) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:961) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:968) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1033) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1009) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:794) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:325) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at com.api.GoogleCalApplication.main(GoogleCalApplication.java:10) ~[classes/:na]
这是我的控制器：
package com.api.controllers;
import java.io.IOException;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.view.RedirectView;
import com.google.api.client.auth.oauth2.AuthorizationCodeRequestUrl;
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.auth.oauth2.TokenResponse;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets.Details;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.DateTime;
import com.google.api.services.calendar.Calendar.Events;
import com.google.api.services.calendar.CalendarScopes;
import com.google.api.services.calendar.model.Event;
@Controller
public class GoogleCalController
private final static Log logger = LogFactory.getLog(GoogleCalController.class);
private static final String APPLICATION_NAME = "";
private static HttpTransport httpTransport;
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static com.google.api.services.calendar.Calendar client;
GoogleClientSecrets clientSecrets;
GoogleAuthorizationCodeFlow flow;
Credential credential;
@Value("$google.client.client-id")
private String clientId;
@Value("$google.client.client-secret")
private String clientSecret;
@Value("$google.client.redirectUri")
private String redirectURI;
private Set<Event> events = new HashSet<>();
final DateTime date1 = new DateTime("2020-07-26T16:30:00.000+05:30");
final DateTime date2 = new DateTime(new Date());
public void setEvents(Set<Event> events)
this.events = events;
@RequestMapping(value = "/login/google", method = RequestMethod.GET)
public RedirectView googleConnectionStatus(HttpServletRequest request) throws Exception
return new RedirectView(authorize());
@RequestMapping(value = "/login/google", method = RequestMethod.GET, params = "code")
public ResponseEntity<String> oauth2Callback(@RequestParam(value = "code") String code)
com.google.api.services.calendar.model.Events eventList;
String message;
try
TokenResponse response = flow.newTokenRequest(code).setRedirectUri(redirectURI).execute();
credential = flow.createAndStoreCredential(response, "userID");
client = new com.google.api.services.calendar.Calendar.Builder(httpTransport, JSON_FACTORY, credential)
.setApplicationName(APPLICATION_NAME).build();
Events events = client.events();
eventList = events.list("primary").setTimeMin(date1).setTimeMax(date2).execute();
message = eventList.getItems().toString();
System.out.println("My:" + eventList.getItems());
catch (Exception e)
logger.warn("Exception while handling OAuth2 callback (" + e.getMessage() + ")."
+ " Redirecting to google connection status page.");
message = "Exception while handling OAuth2 callback (" + e.getMessage() + ")."
+ " Redirecting to google connection status page.";
System.out.println("cal message:" + message);
return new ResponseEntity<>(message, HttpStatus.OK);
public Set<Event> getEvents() throws IOException
return this.events;
private String authorize() throws Exception
AuthorizationCodeRequestUrl authorizationUrl;
if (flow == null)
Details web = new Details();
web.setClientId(clientId);
web.setClientSecret(clientSecret);
clientSecrets = new GoogleClientSecrets().setWeb(web);
httpTransport = GoogleNetHttpTransport.newTrustedTransport();
flow = new GoogleAuthorizationCodeFlow.Builder(httpTransport, JSON_FACTORY, clientSecrets,
Collections.singleton(CalendarScopes.CALENDAR)).build();
authorizationUrl = flow.newAuthorizationUrl().setRedirectUri(redirectURI);
System.out.println("cal authorizationUrl->" + authorizationUrl);
return authorizationUrl.build();
这是我的应用程序起点：
package com.api;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class GoogleCalApplication
public static void main(String[] args)
SpringApplication.run(GoogleCalApplication.class, args);
如何解决？我现在卡了几个小时。我已经安装了所有依赖项。
这是我的 pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.app</groupId>
<artifactId>google-calendar-api</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>google-calendar-api</name>
<description>Demo Project for Google Calendar Api</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath />
<!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.api-client/google-api-client -->
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-calendar -->
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-calendar</artifactId>
<version>v3-rev224-1.22.0</version>
</dependency>
<!-- Gmail Maven Dependency-->
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-gmail</artifactId>
<version>v1-rev65-1.18.0-rc</version>
</dependency>
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-calendar</artifactId>
<version>v3-rev411-1.25.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>
</project>
我所有的客户端密钥和秘密都在资源 application.properties 文件中，我从中引用了所有变量，例如 clientId 和 all。在运行应用程序时，我立即收到此错误。如何解决？
【问题讨论】：
您使用的 java 版本与 Spring Boot 1.5 不兼容。基本上你的java版本是新的。 @rude 工具，你的 application.properties 文件是保存在资源文件夹中的吗？ 【参考方案1】：要么你使用了旧版本的依赖，要么你放错了 application.properties 文件路径。
【讨论】：
【参考方案2】：我敢打赌这种依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
是导致错误的原因。尝试将其删除并再次检查。您可以阅读here 更多关于该依赖项能够做什么的信息，并确定您是要花时间修复它还是只是删除它。
【讨论】：
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