diff --git a/src/main/java/mpms/common/interceptor/PermissionInterceptor.java b/src/main/java/mpms/common/interceptor/PermissionInterceptor.java
index 991fe916e2a7d7ac0979fa523a7a724f6839c487..9fc8d53777910f8ff868661304328940d8255aa8 100644
--- a/src/main/java/mpms/common/interceptor/PermissionInterceptor.java
+++ b/src/main/java/mpms/common/interceptor/PermissionInterceptor.java
@@ -45,6 +45,14 @@ public class PermissionInterceptor extends BaseLinxInterceptor {
 	 */
 	private static final String TYPE_ADD = "add";
 
+	private void init() {
+		if (nodeService == null) {
+			nodeService = SpringUtil.getBean(NodeService.class);
+		}
+		if (roleService == null) {
+			roleService = SpringUtil.getBean(RoleService.class);
+		}
+	}