diff --git a/Java/SearchForUnlinkedOrders.java b/Java/SearchForUnlinkedOrders.java
new file mode 100644
index 0000000000000000000000000000000000000000..36bc127d0b61272c8bbb88b592c72f150415b9b7
--- /dev/null
+++ b/Java/SearchForUnlinkedOrders.java
@@ -0,0 +1,10 @@
+        // 查询已经关联过的ID
+        List<Integer> allByReOrder = dangerWaybillReOrderDao.findAllByReOrder();
+        StringBuffer sql = new StringBuffer("sql省略");
+        StringBuffer countSql = new StringBuffer("SELECT COUNT(*) FROM danger_order o  ");
+        StringBuffer paramSql = new StringBuffer(" where 1=1 ");
+        if(allByReOrder!=null && !allByReOrder.isEmpty()){
+            paramSql.append(" AND o.id not in (:idList) ");
+            maps.put("idList", allByReOrder);
+            System.out.println(allByReOrder);
+        }
\ No newline at end of file