頭部注解,單例:
Respositiry, Service, Controller, RestController, Component, Configuration.
靜態(tài)路徑拼接動態(tài)url
<img th:src" @{'img/' + ${user.avatar}} " class = "img-circle avatar"

1.png
DO: Data Object 值對象
DTO: Data Transfer Object 數(shù)據(jù)傳輸對象
VO: View Object 視圖對象