public class testDao {
public void Select1(){
Connection con = null;
PreparedStatement pst = null;
ResultSet rs = null;
java.sql.Date str1=null;
try{
con = JdbcUtil12.getConnection();
String sql = "SELECT MAX(insert_time) as a FROM cdl_raw_1x_12217_atl32_sht_201702 t1";
pst = con.prepareStatement(sql);
rs=pst.executeQuery();
while(rs.next()){
Date time1=new Date(rs.getTimestamp("a").getTime());
SimpleDateFormat formattime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String pubtime=formattime.format(time1);
String dateStr = "";
if(dateStr.compareTo(pubtime)<0){
System.out.println("菏泽"+" "+pubtime+"正常");
}else{
System.out.println("菏泽"+" "+pubtime+"异常");
}}
}catch(Exception e){
e.printStackTrace();
}finally{
JdbcUtil12.close(con, pst, rs);
};
}
public static void main(String[] args) throws ParseException{
Calendar now=Calendar.getInstance();
now.add(Calendar.HOUR,-4);
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateStr=sdf.format(now.getTimeInMillis());
System.out.println("当前时间-4个小时:"+dateStr);
new testDao().Select1();
}
}
以上是用JDBC连接数据库进行查询,在后台输出打印的结果是:菏泽 2017-02-22 15:03:03正常
如何将在后台输出的结果输出到某个jsp页面