获得数据库服务器系统日期和数据校…

import java.sql.ResultSet;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.regex.*;import cn.com.database.sql.SqlCall_Query_t_Policy;
public class Helper {
  public static Date getSysDateFromDB() {
   Date dt = new Date();
   ResultSet rs = null;
   SqlCall_Query_t_Policy call = new SqlCall_Query_t_Policy("select getdate()");
   try {
    rs = call.executeQuery();
    if (rs.next()) {
     dt = rs.getDate(1);
    }
   } catch (Exception e) {
    e.printStackTrace();
   } finally {
    if (rs != null)
     try {
      rs.close();
     } catch (Exception ex) {
      ex.printStackTrace();
     }
    if (call != null)
     call.close();
   }
   return dt;
  }public static Date getDatePartOnly() {
   Calendar c = Calendar.getInstance();
   c.setTime(getSysDateFromDB());
   c.set(Calendar.HOUR, 0);
   c.set(Calendar.MINUTE, 0);
   c.set(Calendar.SECOND, 0);
   c.set(Calendar.MILLISECOND, 0); return c.getTime();
  }public static String getStringDatePartOnly() {
   SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
   return format.format(getSysDateFromDB());
  }
  
  
  
  public static String makeSafe(String str) {
   if (str == null)
    return str;
   
   String regEx_script = "<[//s]*?script[^>]*?>[//s//S]*?<[//s]*?///[//s]*?script[//s]*?>"; // 定义script的正则表达式{或<script[^>]*?>[//s//S]*?<///script>     
      String regEx_style = "<[//s]*?style[^>]*?>[//s//S]*?<[//s]*?///[//s]*?style[//s]*?>"; // 定义style的正则表达式{或<style[^>]*?>[//s//S]*?<///style>     
      String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式     
      String regEx_html1 = "<[^>]+";     
      Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);     
      Matcher m_script = p_script.matcher(str);     
      str = m_script.replaceAll(""); // 过滤script标签     
  
      Pattern p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);     
      Matcher m_style = p_style.matcher(str);     
      str = m_style.replaceAll(""); // 过滤style标签     
  
      Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);     
      Matcher m_html = p_html.matcher(str);     
      str = m_html.replaceAll(""); // 过滤html标签     
  
      Pattern p_html1 = Pattern.compile(regEx_html1, Pattern.CASE_INSENSITIVE);     
      Matcher m_html1 = p_html1.matcher(str);     
      str = m_html1.replaceAll(""); // 过滤html标签
     
      return str;
  }
 }