SpringBoot JSON List為空不返回

JOSN List 返回值為[ ] 要想讓它不返回

在實體類添加注解

@JsonInclude(JsonInclude.Include.NON_EMPTY)
public class MenuDTO {
    private Integer id;
    private String name;
    private List<MenuDTO> menu = new ArrayList<>();
}

JOSN List 返回值為null  要想讓它不返回

 

@JsonInclude(JsonInclude.Include.NON_NULL)
public class MenuDTO {
    private Integer id;
    private String name;
    private List<MenuDTO> menu = new ArrayList<>();
}