diff --git a/src/main/java/com/supervision/neo4j/dto/WebRelDTO.java b/src/main/java/com/supervision/neo4j/dto/WebRelDTO.java
index 20c185f..3ddc7be 100644
--- a/src/main/java/com/supervision/neo4j/dto/WebRelDTO.java
+++ b/src/main/java/com/supervision/neo4j/dto/WebRelDTO.java
@@ -5,15 +5,15 @@ import lombok.Data;
 @Data
 public class WebRelDTO {
 
-    private long source;
+    private String source;
 
-    private long target;
+    private String target;
 
     private String name;
 
     public WebRelDTO(long source, long target, String name) {
-        this.source = source;
-        this.target = target;
+        this.source = String.valueOf(source);
+        this.target = String.valueOf(target);
         this.name = name;
     }
 }
diff --git a/src/main/java/com/supervision/neo4j/service/impl/Neo4jServiceImpl.java b/src/main/java/com/supervision/neo4j/service/impl/Neo4jServiceImpl.java
index 3d6a52e..3a7e0a3 100644
--- a/src/main/java/com/supervision/neo4j/service/impl/Neo4jServiceImpl.java
+++ b/src/main/java/com/supervision/neo4j/service/impl/Neo4jServiceImpl.java
@@ -257,7 +257,7 @@ public class Neo4jServiceImpl implements Neo4jService {
     public R<?> getNode(String picType, String caseId) {
         Map<String, Object> map = new HashMap<>();
         List<WebRelDTO> list = new ArrayList<>();
-        List<Map<String, Object>> nodes = new ArrayList<>();
+        List<Map<String, String>> nodes = new ArrayList<>();
         try {
             Session session = driver.session();
             Map<String, Object> params = new HashMap<>();
@@ -280,10 +280,10 @@ public class Neo4jServiceImpl implements Neo4jService {
                 Record record = node.next();
                 String name = record.get("name").asString();
                 long idLong = record.get("id").asLong();
-                Map<String, Object> nodeMap = new HashMap<>();
+                Map<String, String> nodeMap = new HashMap<>();
                 nodeMap.put("name", name);
                 nodeMap.put("entityName", name);
-                nodeMap.put("id", idLong);
+                nodeMap.put("id", String.valueOf(idLong));
                 nodes.add(nodeMap);
             }
         } catch (Exception e) {