Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package.

在Idea中新創建了一個Springboot項目。然後啓動發現了一個新錯誤： Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package. 原因： Application.java 文件不能直接放在main/java文件夾下，必須要建一個包把他放進去

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