java中获取当前系统时间,日期并格式化输出

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import java.util.Date; 
import java.text.SimpleDateFormat;
public class NowString { 
   public static void main(String[] args) {      
   SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
      System.out.println(df.format(new Date()));// new Date()为获取当前系统时间
   } 
}

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String sqlst = "select convert(varchar(10),bookDate,126) as convertBookDate from roomBook where bookDate  between '2007-4-10' and '2007-4-25'";
System.out.println(rs.getString("convertBookDate"));

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import java.util.Date; 
import java.text.SimpleDateFormat;

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SimpleDateFormat sdf = new SimpleDateFormat(yy-MM-dd);

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String sqlStr = "select bookDate from roomBook where bookDate between '2007-4-10' and '2007-4-25'";

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System.out.println(df.format(rs.getDate("bookDate")));