springboot在配置Bean的時候，可能會出現這樣的錯誤！！！ 原因是因為相同名字的bean已經存在了。
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APPLICATION FAILED TO START
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Description:
The bean 'interceprot', defined in class path resource [com/example/demo1/doInterceptor.class], could not be registered. A bean with that name has already been defined in file [/Users/sun/Desktop/demo1/target/classes/com/example/demo1/Interceprot.class] and overriding is disabled.
Action:
Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true
要是想配置成功，需要在配置檔案中加上這樣一段
spring.main.allow-bean-definition-overriding=true意思是覆蓋bean。 這樣就好了！！！！
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