Spring 启动 - 从 2.2.5 升级到 2.5.7 后，应用程序无法启动

Question

我将 spring 引导从 2.2.5 升级到 2.5.7，我正在使用 MongoDB。 由于编译失败，我删除了 spring-boot-starter-mongo 并在下面添加了解决我的编译问题的依赖项

<dependency>
  <groupId>org.mongodb</groupId>
  <artifactId>mongodb-driver</artifactId>
  <version>3.11.2</version>    
</dependency>
<dependency>
  <groupId>org.mongodb</groupId>
  <artifactId>mongodb-driver-sync</artifactId>
  <version>3.11.0</version>
</dependency>
<dependency>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-mongodb</artifactId>
  <version>2.2.5.RELEASE</version>

如果我运行应用程序进行所有上述更改，我将面临java.lang.ClassNotFoundException: org.springframework.data.mongodb.MongoDatabaseFactory

还添加运行时日志：

需要输入来解决此问题

2021-12-21 20:16:00.263 ERROR [ht-ui-api : ] 19004 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed
java.lang.IllegalArgumentException: Could not find class [org.springframework.data.mongodb.MongoDatabaseFactory]
    at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:334) ~[spring-core-5.3.13.jar:5.3.13]
    at org.springframework.core.annotation.TypeMappedAnnotation.adapt(TypeMappedAnnotation.java:446) ~[spring-core-5.3.13.jar:5.3.13]
    at org.springframework.core.annotation.TypeMappedAnnotation.getValue(TypeMappedAnnotation.java:369) ~[spring-core-5.3.13.jar:5.3.13]
    at org.springframework.core.annotation.TypeMappedAnnotation.asMap(TypeMappedAnnotation.java:284) ~[spring-core-5.3.13.jar:5.3.13]
    at org.springframework.core.annotation.AbstractMergedAnnotation.asAnnotationAttributes(AbstractMergedAnnotation.java:193) ~[spring-core-5.3.13.jar:5.3.13]
    at org.springframework.core.type.AnnotatedTypeMetadata.getAnnotationAttributes(AnnotatedTypeMetadata.java:106) ~[spring-core-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.AnnotationConfigUtils.attributesFor(AnnotationConfigUtils.java:285) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.AnnotationBeanNameGenerator.determineBeanNameFromAnnotation(AnnotationBeanNameGenerator.java:102) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.AnnotationBeanNameGenerator.generateBeanName(AnnotationBeanNameGenerator.java:81) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.registerBeanDefinitionForImportedConfigurationClass(ConfigurationClassBeanDefinitionReader.java:169) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:150) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:129) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:343) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:247) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:311) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:112) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:746) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:564) ~[spring-context-5.3.13.jar:5.3.13]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.7.jar:2.5.7]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:765) ~[spring-boot-2.5.7.jar:2.5.7]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445) ~[spring-boot-2.5.7.jar:2.5.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) ~[spring-boot-2.5.7.jar:2.5.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354) ~[spring-boot-2.5.7.jar:2.5.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-2.5.7.jar:2.5.7]
    at com.htds.api.HtUiApiApplication.main(HtUiApiApplication.java:15) ~[classes/:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.5.7.jar:2.5.7]
Caused by: java.lang.ClassNotFoundException: org.springframework.data.mongodb.MongoDatabaseFactory
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606) ~[na:na]
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168) ~[na:na]
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[na:na]
    at java.base/java.lang.Class.forName0(Native Method) ~[na:na]
    at java.base/java.lang.Class.forName(Class.java:468) ~[na:na]
    at org.springframework.boot.devtools.restart.classloader.RestartClassLoader.loadClass(RestartClassLoader.java:145) ~[spring-boot-devtools-2.5.7.jar:2.5.7]
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[na:na]
    at java.base/java.lang.Class.forName0(Native Method) ~[na:na]
    at java.base/java.lang.Class.forName(Class.java:468) ~[na:na]
    at org.springframework.util.ClassUtils.forName(ClassUtils.java:284) ~[spring-core-5.3.13.jar:5.3.13]
    at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:324) ~[spring-core-5.3.13.jar:5.3.13]
    ... 29 common frames omitted

Answer 1

为什么您“将 spring 引导升级到 2.5.7”？ （为什么，今天，不是 2.6.1？；）但是你为什么离开 spring-data-mongodb: 2.2.5.RELEASE ？

请对齐

即：用spring-boot版本确认spring-data-mongodb版本（反之亦然）！ 在2.5.7的情况下，这些将是：

• org.mongodb:mongodb-driver-sync: 4.2.3
• org.springframework.data:spring-data-mongodb: 3.2.7

... 证明两者。 #

---

升级 spring-data-mongodb （或不升级！ ） 2.x -> 3.x ，（升级到 spring-boot:2.XXX 显然需要），请参考参考文档#upgrading.2-3 。

希望也有帮助：（ 最新）Spring 引导发行说明（带有指向以前版本的快速链接， Ctrl+F ， mongo ... data ；）