添加清库方法

.idea/workspace.xml

@@ -98,7 +98,7 @@
       <workItem from="1693447950473" duration="11267000" />
       <workItem from="1693536669710" duration="10048000" />
       <workItem from="1693622693690" duration="19250000" />
-      <workItem from="1693802539121" duration="2088000" />
+      <workItem from="1693802539121" duration="3377000" />
     </task>
     <task id="LOCAL-00001" summary="stater版首次提交">
       <created>1693387558801</created>
@@ -135,7 +135,14 @@
       <option name="project" value="LOCAL" />
       <updated>1693803248860</updated>
     </task>
-    <option name="localTasksCounter" value="6" />
+    <task id="LOCAL-00006" summary="读取配置文件">
+      <created>1693809163719</created>
+      <option name="number" value="00006" />
+      <option name="presentableId" value="LOCAL-00006" />
+      <option name="project" value="LOCAL" />
+      <updated>1693809163719</updated>
+    </task>
+    <option name="localTasksCounter" value="7" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">

src/main/java/com/tongda/tdtopo/service/TDGraphService.java

@@ -1346,4 +1346,23 @@ public class TDGraphService {
         }
     }
 
+    /**
+     *  删除所有的节点
+     * @return
+     */
+    public void  deleteAllNode() {
+        String count="";
+        try(Transaction transaction = graphDb.beginTx()){
+            String cypher="MATCH (n) WITH n LIMIT 100000 DETACH DELETE n RETURN count(*)";
+            Result result=graphDb.execute(cypher);
+            count=result.next().get("count(*)").toString();
+
+//            System.out.println("数据清空："+count);
+//            System.out.println(!count.equals("0"));
+            transaction.success();
+        }
+        if (!count.equals("0")){
+            deleteAllNode();
+        }
+    }
 }