diff --git a/src/main/java/com/ruoyi/airline/controller/convert/AirlineMarkerControllerConvert.java b/src/main/java/com/ruoyi/airline/controller/convert/AirlineMarkerControllerConvert.java
index 58635c9..874b48e 100644
--- a/src/main/java/com/ruoyi/airline/controller/convert/AirlineMarkerControllerConvert.java
+++ b/src/main/java/com/ruoyi/airline/controller/convert/AirlineMarkerControllerConvert.java
@@ -1,5 +1,7 @@
 package com.ruoyi.airline.controller.convert;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.ruoyi.airline.api.domain.AirlineMarkerVO;
 import com.ruoyi.airline.service.dto.AirlineMarkerDTO;
 import com.ruoyi.common.core.utils.BaseConvert;
@@ -14,6 +16,7 @@ import java.util.List;
  */
 public class AirlineMarkerControllerConvert extends BaseConvert<AirlineMarkerDTO, AirlineMarkerVO>
 {
+    private static final ObjectMapper objectMapper = new ObjectMapper();
     private static final AirlineMarkerControllerConvert INSTANCE = new AirlineMarkerControllerConvert();
 
     private AirlineMarkerControllerConvert() {
@@ -72,7 +75,15 @@ public class AirlineMarkerControllerConvert extends BaseConvert<AirlineMarkerDTO
         dto.setColor(vo.getColor());
         dto.setIcon(vo.getIcon());
         dto.setFontSize(vo.getFontSize());
-        dto.setCoordinates(vo.getCoordinates());
+
+        if (vo.getCoordinates() != null) {
+            try {
+                dto.setCoordinates(objectMapper.writeValueAsString(vo.getCoordinates()));
+            } catch (JsonProcessingException e) {
+                dto.setCoordinates(null);
+            }
+        }
+
         dto.setDescription(vo.getDescription());
         dto.setGroupId(vo.getGroupId());
         dto.setCreateBy(vo.getCreateBy());
diff --git a/src/main/java/com/ruoyi/airline/service/convert/AirlineMarkerServiceConvert.java b/src/main/java/com/ruoyi/airline/service/convert/AirlineMarkerServiceConvert.java
index a60e6cd..d84511c 100644
--- a/src/main/java/com/ruoyi/airline/service/convert/AirlineMarkerServiceConvert.java
+++ b/src/main/java/com/ruoyi/airline/service/convert/AirlineMarkerServiceConvert.java
@@ -14,7 +14,6 @@ import java.util.List;
  */
 public class AirlineMarkerServiceConvert extends BaseConvert<AirlineMarker, AirlineMarkerDTO>
 {
-
     private static final AirlineMarkerServiceConvert INSTANCE = new AirlineMarkerServiceConvert();
 
     private AirlineMarkerServiceConvert() {