springboot 專案 注意事項
SpringBoot出現下列錯誤。
Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package
Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception
或者
Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package
Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception
或者
ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot
主要是由於application.java檔案沒有放在main/java資料夾的原因，因為application.Java 檔案不能直接放在main/java資料夾下，必須要建一個包把他放進去
SpringBoot在寫啟動類的時候如果不使用@ComponentScan指明物件掃描範圍，預設指掃描當前啟動類所在的包裡的物件，如果當前啟動類沒有包，則在啟動時會報錯：
Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package錯誤。
@SpringBootApplication
@ComponentScan(basePackageClasses＝MytestApplication.class)
public class MytestApplication {
public static void main(String[] args){
SpringApplication.run(MytestApplication.class, args);
}
}
@ComponentScan(basePackageClasses＝要掃描類.class所在位置的包)－意思是要掃描哪個類所在的包
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作者：King-Long
來源：CSDN
原文：https://blog.csdn.net/u011095110/article/details/76144416