tomcat启动spring boot项目报错：:

: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/XXX]]
……
Caused by: : Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/]: Invocation of init method failed; nested exception is : javax/xml/bind/JAXBException
……
Caused by: : javax/xml/bind/JAXBException
        ……
Caused by: :
at (:1275)
at (:1104)

... 73 more

这是由于java9缺少包引起的，只要导入包即可

<dependency>
    <groupId></groupId>
    <artifactId>jaxb-api</artifactId>
    <version>2.3.0</version>
</dependency>