更新代码

src/main/java/com/postcard/service/config/anno/BusinessType.java

+package com.postcard.service.config.anno;
+
+import com.postcard.service.enums.BusinessTypeEnum;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * @Author:zhouxudong
+ * @version: 1.0
+ * @Date: 2023/12/19 10:05
+ * @Description:
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({  ElementType.TYPE })
+public @interface BusinessType {
+    BusinessTypeEnum value();
+}

src/main/java/com/postcard/service/config/other/DefaultImgUrl.java

 package com.postcard.service.config.other;
 
+import cn.hutool.core.annotation.AnnotationUtil;
 import cn.hutool.extra.spring.SpringUtil;
 import cn.hutool.json.JSONArray;
 import cn.hutool.json.JSONObject;
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.databind.JsonSerializer;
 import com.fasterxml.jackson.databind.SerializerProvider;
+import com.postcard.service.config.anno.BusinessType;
+import com.postcard.service.enums.BusinessTypeEnum;
 import com.postcard.service.enums.DefaultImgUrlEnum;
 import com.postcard.service.enums.DevelopmentStatusEnum;
 import com.postcard.service.enums.ParkStatusEnum;
@@ -49,6 +52,14 @@ public class DefaultImgUrl extends JsonSerializer<String> {
   public void serialize(
           String imgUrl, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
       throws IOException {
+
+    Object currentValue = jsonGenerator.getCurrentValue();
+    Class<?> aClass1 = currentValue.getClass();
+    Object annotationValue = AnnotationUtil.getAnnotationValue(aClass1, BusinessType.class);
+    BusinessTypeEnum businessTypeEnum = BusinessTypeEnum.valueOf(annotationValue.toString());
+
+
+
     if(StringUtils.isNotBlank(imgUrl)){
       jsonGenerator.writeString(imgUrl);
     }else{

src/main/java/com/postcard/service/moudle/carrier/vo/CarrierPageVo.java

 package com.postcard.service.moudle.carrier.vo;
 
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.postcard.service.config.anno.BusinessType;
 import com.postcard.service.config.other.DefaultImgUrl;
+import com.postcard.service.enums.BusinessTypeEnum;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.*;
@@ -20,6 +22,7 @@ import java.math.BigDecimal;
 @NoArgsConstructor
 @ToString
 @ApiModel(value = "载体分页返回数据")
+@BusinessType(BusinessTypeEnum.CARRIER)
 public class CarrierPageVo {
     @ApiModelProperty(value = "主键id")
     private Integer id;
@@ -34,6 +37,7 @@ public class CarrierPageVo {
     @ApiModelProperty(value = "楼号")
     private String buildingNumber;
     @ApiModelProperty(value = "图片")
+
     @JsonSerialize(nullsUsing = DefaultImgUrl.class)
     private String imgUrl;