有没有什么办法先执行完voltageDao.Volt(); 然后再去执行tempDao.Tempe();。因为我向同一个串口发送两条指令 并返回数据。但是按顺序发送只能接受到一个指令返回的数据。
public class VolTemServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
TempDao tempDao = new TempDao();
VoltageDao voltageDao = new VoltageDao();
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
voltageDao.Volt();
request.setAttribute("Voltage", voltageDao.Voltage);
request.setAttribute("current", voltageDao.current);
tempDao.Tempe();
request.setAttribute("Temperature", tempDao.Temperature);
request.setAttribute("Humidity", tempDao.Humidity);
request.getRequestDispatcher("/NewFile.jsp").forward(request, response);
}
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