fix: 修改了中心服务器接收心跳包函数；修改客户端变量类型id

src/server.py

@@ -29,6 +29,7 @@ def init():
     asyncio.create_task(receive_heartbeat_internal())
 
 def clean_env():
+    clear_database()
     # 关闭游标和连接
     cursor.close()
     conn.close()
@@ -86,14 +87,14 @@ async def delete_node(ip: str) -> None:
         print(f"Node with IP {ip} not found.")
 
 # 接收节点心跳包
-@app.post("/server/heartbeat")
+@app.get("/server/heartbeat")
 async def receive_heartbeat(ip: str):
         cursor.execute("UPDATE nodes SET last_heartbeat = ? WHERE ip = ?", (time.time(), ip))
         return {"status": "received"}     
     
 async def receive_heartbeat_internal():
     while 1:
-        timeout = 70
+        timeout = 7
         # 删除超时的节点
         # cursor.execute("DELETE FROM nodes WHERE last_heartbeat < ?", (time.time() - timeout,))
         # conn.commit()
@@ -120,12 +121,12 @@ async def send_nodes_list(count: int) -> list:
 
     return nodes_list
 
-@app.get("/server/clear_database")
-async def clear_database() -> None:
+# @app.get("/server/clear_database")
+def clear_database() -> None:
     cursor.execute("DELETE FROM nodes")
     conn.commit()
 
 if __name__ == "__main__":
     import uvicorn  # pylint: disable=e0401
 
-    uvicorn.run("server:app", host="0.0.0.0", port=8000, reload=True)
+    uvicorn.run("server:app", host="0.0.0.0", port=8000, reload=True)