java.sql.SQLException：java.sql.Time 的非法小时值“50”键入值“50:51:05”

Question

当我尝试从 MySQL 检索时间并将其设置为 JLabel 时，出现错误。

java.sql.SQLException: Illegal hour value '50' for java.sql.Time type in value '50:51:05.

谁能建议我如何解决这个问题？

代码如下

        String sql = "SELECT SEC_TO_TIME(SUM(TIME_TO_SEC(ot)))"
                + " FROM attendance"
                + " WHERE department = '"+department+"'"
                + "   AND date BETWEEN '"+dateChooser1+"' AND '"+dateChooser2+"'";
        st = con.createStatement();
        rst = st.executeQuery(sql);
        if(rst.next())
        {
            String time = rst.getString(1);
            oTimeTemp.setText(time);
        }

Answer 1

// if you want to use time as label  
// you can use oTimeTemp if Date type of java.util, this have both time and date

    if(rst.next())
        {
// this Time string need to cast  in util time
           String time = rst.getString(1);  
           String time = time ;
           DateFormat sdf = new SimpleDateFormat("hh:mm:ss");
           Date date = sdf.parse(time);
           oTimeTemp.setText(date); // in this date we have the time
        }

Answer 2

我解决了。这是代码，

String sql = "SELECT SUM(TIME_TO_SEC(ot))"
            + " FROM attendance"
            + " WHERE department = '"+department+"'"
            + " AND date BETWEEN '"+dateChooser1+"' AND '"+dateChooser2+"'";
    st = con.createStatement();
    rst = st.executeQuery(sql);
    if(rst.next())
    {
            String time = rst.getString(1);
            Double dTime = Double.valueOf(time);
            int intTime = (int) dTime.doubleValue();
            String nTime = calculateTime(intTime);
            oTimeTemp.setText(nTime);
    }

private static String calculateTime(int totalSecs)
{
    int hours = totalSecs / 3600;
    int minutes = (totalSecs % 3600) / 60;
    int seconds = totalSecs % 60;

    String timeString = String.format("%02d:%02d:%02d", hours, minutes, seconds);
    return timeString;
}

Answer 3

有一个mysql错误，按如下方式使用它会很好：

 String sql = "SELECT concate(SEC_TO_TIME(SUM(TIME_TO_SEC(ot))),'')"
 + " FROM attendance"
 + " WHERE department = '"+department+"'"
 + "   AND date BETWEEN '"+dateChooser1+"' AND '"+dateChooser2+"'";

java.sql.SQLException：java.sql.Time 的非法小时值“50”键入值“50:51:05”

java.sql.SQLException: Illegal hour value '50' for java.sql.Time type in value '50:51:05

java

mysql

time

duration