No persistence units parsed from {classpath*:META-INF/persistence.xml}问题解决-优快云博客

本文分析了Spring框架中出现的依赖注入错误，具体为在创建hotelsController时无法满足对BookingService的依赖，并深入探讨了背后的原因：在创建BookingService时，持久化方法的注入失败，进一步追溯到entityManagerFactory初始化过程中抛出的异常，提示没有从classpath*:META-INF/persistence.xml中解析到任何持久化单元。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'hotelsController' defined in file [D:/eclipse/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/openbi/WEB-INF/classes/org/springframework/webflow/samples/booking/HotelsController.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [org.springframework.webflow.samples.booking.BookingService]: : Error creating bean with name 'bookingService': Injection of persistence methods failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in ServletContext resource [/WEB-INF/config/data-access-config.xml]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: No persistence units parsed from {classpath*:META-INF/persistence.xml}; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bookingService': Injection of persistence methods failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in ServletContext resource [/WEB-INF/config/data-access-config.xml]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: No persistence units parsed from {classpath*:META-INF/persistence.xml}

注意，这里的META-INF应该是位于classes同级目录的，不是和web-inf同级目录的，切记。