Update AdminUserDetails.java

mall-admin/src/main/java/com/macro/mall/bo/AdminUserDetails.java

@@ -40,6 +40,8 @@ public class AdminUserDetails implements UserDetails {
         return umsAdmin.getPassword();
     }
 
+
+    //获取用户名
     @Override
     public String getUsername() {
         return umsAdmin.getUsername();