MybatisDaoScanNotFoundConfigurer

最新推荐文章于 2025-04-24 00:22:22 发布

原创最新推荐文章于 2025-04-24 00:22:22 发布 · 458 阅读

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本文详细解析了Spring Boot应用在启动过程中遇到的NullPointerException异常原因，主要由于测试启动类放置不当及包扫描配置错误导致的问题，并提供了调整目录结构后的解决方案。

原因:测试启动类放在根目录下

配置是这样

@EnableEurekaClient
@EnableFeignClients(basePackages = "com.hupun")
@SpringBootApplication(scanBasePackages = {"com.hupun"})

目录调整到 com.hupun 目录就ok了.

15:35:55.484 - WARN 9458 [main] o.s.b.a.AutoConfigurationPackages - @EnableAutoConfiguration was declared on a class in the default package. Automatic @Repository and @Entity scanning is not enabled.
15:35:56.412 -ERROR 10386 [main] o.s.b.SpringApplication - Application startup failed
java.lang.NullPointerException: null
   at com.hupun.calf.db.mybatis.spring.MybatisAutoConfiguration$MybatisDaoScanNotFoundConfigurer.packages(MybatisAutoConfiguration.java:165)
   at com.hupun.calf.db.mybatis.spring.MybatisAutoConfiguration$MybatisDaoScanNotFoundConfigurer.postProcessBeanDefinitionRegistry(MybatisAutoConfiguration.java:136)
   at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:272)
   at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:122)
   at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687)
   at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524)
   at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:124)
   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.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:134)