jsp中request.getParameter调用问题

Question

     String staTime;
    String endTime;
    String trackingPoint;
    MMDD md=new MMDD();
    Calendar cal = Calendar.getInstance();
    VolumeByPoint a = new VolumeByPoint(conn);      
    staTime=request.getParameter("yst")+"-"+request.getParameter("mmst")+"-"+request.getParameter("dayst")+" "+request.getParameter("hst");
    endTime=request.getParameter("yend")+"-"+request.getParameter("mmend")+"-"+request.getParameter("dayend")+" "+request.getParameter("hend");
    //yst年的开始；mmst月的开始；dst天的开始;hst小时的开始
    //System.out.println(request.getParameter("D1"));
    trackingPoint=request.getParameter("D1");
    int vol[]=a.getVolumeByPoint(staTime,endTime,trackingPoint);

这段代码一直提示The method getVolumeByPoint(String, String) in the type VolumeByPoint is not applicable for the arguments (String, String, String)错误。
但我函数声明中已经写明public int[] getVolumeByPoint(String staTime,String endTime,String trackingPoint)

求大神指教怎么解决？

Answer 1

是不是你之前是写的2个参数的函数
然后后面又改了java的函数

把jsp清清把可能是以前的class搞鬼