Ambiguous mapping. Cannot map 'xxxController' method
上面的代碼中，都有@GetMapping，並沒有指定value值，所以重復了，導致映射模糊。 解決方法，指定value值。 問題就可以解決啦！ ...
原文：Ambiguous mapping. Cannot map 'registerController' method
org.springframework.beans.factory.BeanCreationException: Error creating bean with name requestMappingHandlerMapping defined in class path resource org springframework boot autoconfigure web WebMvcAuto ...
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