Injection of autowired dependencies failed; nested exception is java.lang.NullPointerException

本文探讨了因粗心遗漏服务注入而引发的编程错误,揭示了常见原因,并提供了解决策略,着重于前端开发中注解的重要性及排查技巧。

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小case,粗心大意的惹的祸。

忘记添加需要注入的服务了,仅仅留下一个注解,就有可能报这个错。

当然也有可能是其他的原因造成的。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'logExportAspect': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ccdAdminApi': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplateDTO' defined in class path resource [com/iflytek/cdc/edr/configuration/RestTemplateConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.iflytek.cdc.edr.utils.RestTemplateDTO]: Factory method 'restTemplateDTO' threw exception; nested exception is java.lang.NullPointerException: Cannot invoke "com.iflytek.cdc.edr.configuration.RestTemplateCommonConfig$OutInvoke.toString()" because the return value of "com.iflytek.cdc.edr.configuration.RestTemplateCommonConfig.getOutInvoke()" is null at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:325) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1404) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) 解析
最新发布
04-03
回答: "Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'config.info' in value "${config.info}" 这个错误通常是由于无法解析占位符 'config.info' 导致的。\[1\]在程序中使用自动注入的方式获取值时,可能会遇到这个问题。例如,在代码中使用了 @Autowired 注解来注入依赖的配置信息,但是无法找到对应的占位符值。\[2\]这个问题可能与使用的依赖库有关。在引用\[3\]中提到的情况中,通过修改依赖库的版本,从 'spring-cloud-config-server' 到 'spring-cloud-starter-config',可以解决这个问题。你可以尝试检查你的代码中是否存在未解析的占位符,并确保依赖库的版本正确。 #### 引用[.reference_title] - *1* *3* [Injection of autowired dependencies failednested exception is java.lang.IllegalArgumentException](https://blog.csdn.net/hhb_19930307/article/details/124205887)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item] - *2* [Injection of autowired dependencies failednested exception is java.lang.Il](https://blog.csdn.net/weixin_58276266/article/details/123551450)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item] [ .reference_list ]
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