由于类型不兼容(例如，在多个类加载器中加载的类)，自动装配可能会失败.

Autowiring can fail due to incompatible types (e.g. classes loaded in multiple classloaders).

由于您已经将JAR放置在tomcat的启动类路径中，因此web应用程序也必须可见该JAR，而不必将JAR放置在WEB-INF/lib中.

Since you already place the JAR in tomcat's boot classpath, it must be visible to the webapp as well without you having to place the JAR in WEB-INF/lib.

您可以将依赖项范围provided设置为不让Maven放置在WEB-INF/lib中.

You can make the dependency scope provided to not have Maven place it in WEB-INF/lib.