diff --git a/src/main/java/com/huoran/iasf/entity/SysPermission.java b/src/main/java/com/huoran/iasf/entity/SysPermission.java
index 103206d..6f5b6ca 100644
--- a/src/main/java/com/huoran/iasf/entity/SysPermission.java
+++ b/src/main/java/com/huoran/iasf/entity/SysPermission.java
@@ -45,7 +45,7 @@ public class SysPermission implements Serializable {
 
     @NotNull(message = "所属菜单不能为空")
     @ApiModelProperty(value = "父级菜单权限id")
-    private String pid;
+    private Integer pid;
 
     @ApiModelProperty(value = "排序")
     private Integer orderNum;
diff --git a/src/main/java/com/huoran/iasf/service/impl/PermissionServiceImpl.java b/src/main/java/com/huoran/iasf/service/impl/PermissionServiceImpl.java
index 71d08fc..9535e4b 100644
--- a/src/main/java/com/huoran/iasf/service/impl/PermissionServiceImpl.java
+++ b/src/main/java/com/huoran/iasf/service/impl/PermissionServiceImpl.java
@@ -251,7 +251,7 @@ public class PermissionServiceImpl extends ServiceImpl<SysPermissionMapper, SysP
     private static List<SysPermission> build(List<SysPermission> treeNodes) {
         List<SysPermission> trees = new ArrayList<>();
         for (SysPermission treeNode : treeNodes) {
-            if ("0".equals(treeNode.getPid())) {
+            if (treeNode.getPid()==0) {
                 treeNode.setLevel(1);
                 trees.add(findChildren(treeNode,treeNodes));
             }