在 src/main/java/exception
新增檔案 ResourceNotFoundException.java
package exception;import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ResponseStatus;@ResponseStatus(value = HttpStatus.NOT_FOUND)
public class ResourceNotFoundException extends RuntimeException {
public static final long serialVersionUID = 1L; public ResourceNotFoundException(String message) {
super(message);
}
}
若數據庫查不到資料的話,就可以使用自定義Exception
返回給客戶端對應的狀態 HttpStatus.NOT_FOUND