关闭 不返回null的字段

fys-system/src/main/java/com/fuyuanshen/modules/system/domain/Device.java

@@ -6,6 +6,7 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
+import com.fasterxml.jackson.annotation.JsonInclude;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.Data;
 import com.fuyuanshen.base.BaseEntity;
@@ -20,6 +21,7 @@ import java.io.Serializable;
  **/
 @Data
 @TableName("device")
+@JsonInclude(JsonInclude.Include.ALWAYS) // 关键注解
 public class Device extends BaseEntity implements Serializable {
 
     @TableId(value = "id", type = IdType.AUTO)

fys-system/src/main/resources/config/application.yml

@@ -43,8 +43,8 @@ spring:
     multipart:
       max-file-size: 5MB        # 设置单个上传文件的最大大小为10MB
       max-request-size: 5MB
-#  jackson:
-#    default-property-inclusion: non_null
+  jackson:
+    default-property-inclusion: always
 #  pid:
 #    file: /自行指定位置/eladmin.pid