Multiple annotations found at this line:
- cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'mvc:default-servlet-handler'.
- schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/mvc/spring-mvc.xsd', because 1) could not find the
document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.
当时是查阅了 https://blog.csdn.net/bluishglc/article/details/7596118，虽然并未使用作者提到的方法（写的很好，推荐），我是将报错的删了，然后重新添加上就莫名其妙好用了，不过还是谢谢。