非int型数据要加单引号，

　　用format格式化当前时间后用String插入即可

　　读取时用时间戳读取datetime或转化为string存储

 

 

读

public static String gainTime(Date date) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateStr = sdf.format(date);
System.out.println(dateStr);
return dateStr;
}

user.setTime(gainTime(rsst.getTimestamp("creat_time")));

存

SimpleDateFormat timeFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.sss");

Date time=new Date();

String sqldate=timeFormat.format(time);

String s = "insert into master values(" + "\'" + username + "\',\'" + password + "\',\'"+sqldate +"\')";
sql.executeUpdate(s);