4.25

public static String shortest(User user) {

    Connection connection = JDBCUtils.getConn();
    String startingStation = user.getStarting_Station();
    String terminusStation = user.getTerminus_Station();

    // 1. 构建站点名称到ID的映射
    Map<String, Integer> stationIdMap = buildStationIdMap();

    // 2. 构建邻接矩阵
    int[][] adjacencyMatrix = adjacency();

    // 3. 计算最短路径长度
    int shortestPathLength = calculateShortestPath(adjacencyMatrix, startingStation, terminusStation, stationIdMap);

    System.out.println(shortestPathLength+startingStation+"erhjhgfdshjhgfds");

    // 返回结果，这里可以根据需要将结果转换为字符串
    return "Shortest path length from " + startingStation + " to " + terminusStation + " is: " + shortestPathLength;



}