java tomcat 监控程序

package com.ijx.datasync.common; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class DateUtil { private static Logger log = LoggerFactory.getLogger(DateUtil.class); public final static String LONGEST_PATTERN="yyMMddHHmmssSSS"; /** * 将日期格式化为给定格式的字符串 * @param date * @param pattern * @return */ public static String formatDateToString(Date date, String pattern) { if (null == date) { return null; } SimpleDateFormat sdf = new SimpleDateFormat(pattern); return sdf.format(date); } /** * 将字符串转换为日期 * @param aMask * @param strDate * @return * @throws ParseException */ public static final Date convertStringToDate(String pattern, String strDate){ SimpleDateFormat sdf = new SimpleDateFormat(pattern); try { if(strDate != null && !"".equals(strDate)) { return sdf.parse(strDate); } else { return null; } } catch (ParseException e) { log.error("日期字符串解析异常",e); return null; } } /** * 获取当前时间（精确到秒） * @return 当前时间 */ public static String getThisSecondTime() { Calendar calendar = Calendar.getInstance(); Date currentTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyMMddHHmmss"); return formatter.format(currentTime); } /** * 获取当前时间（精确到年月日时分秒） * @return */ public static String getCurrentDayTime(){ Calendar calendar = Calendar.getInstance(); Date currentTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss"); return formatter.format(currentTime); } /** * 获取当前时间是0-上午还是1-下午 * @return 当前时间 */ public static int getCurrentMeridiem() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.AM_PM); } /** * 获取当天时间 * @return */ public static String getCurrentDay() { Calendar calendar = Calendar.getInstance(); Date currentTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); return formatter.format(currentTime); } /** * 获取昨天时间 字符串 * @return */ public static String getPreDay() { Calendar calendar = Calendar.getInstance(); calendar.add(Calendar.DATE, -1); Date preTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); return formatter.format(preTime); } /** * 获取间隔为n天的时间 * @return */ public static String getPreNDay(int n) { Calendar calendar = Calendar.getInstance(); calendar.add(Calendar.DATE, n); Date preTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); return formatter.format(preTime); } /** * 获取当前日期的前6天 * @param aMask * @param date * @return */ public static final String getCurrentBeforeWeek() { Calendar calendar = Calendar.getInstance(); calendar.add(Calendar.DAY_OF_WEEK, -6); Date currentTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); return formatter.format(currentTime); } /** * 设置开始时间为当天5点 * @return */ public static String getSpeedStartime() { StringBuffer str = new StringBuffer(); Calendar calendar = Calendar.getInstance(); Date currentTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); str.append(formatter.format(currentTime)); str.append(" 09:00"); return str.toString(); } /** * 设置开始时间为当天5点 * @return */ public static String getSpeedEndime() { StringBuffer str = new StringBuffer(); Calendar calendar = Calendar.getInstance(); Date currentTime = calendar.getTime(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); str.append(formatter.format(currentTime)); str.append(" 17:00"); return str.toString(); } /** * 获取当前月第一天 小时分钟为00:00:00 **/ public static String getMonthFirstDay() { StringBuffer str = new StringBuffer(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar lastDate = Calendar.getInstance(); lastDate.set(Calendar.DATE, 1);// 设为当前月的1号 str.append(sdf.format(lastDate.getTime())); str.append(" 00:00:00"); return str.toString(); } /** * 获取当前月最后一天 小时分钟为23:59:59 **/ public static String getMonthLastDay() { StringBuffer str = new StringBuffer(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar lastDate = Calendar.getInstance(); lastDate.set(Calendar.DATE, 1);// 设为当前月的1号 lastDate.add(Calendar.MONTH, 1);// 加一个月，变为下月的1号 lastDate.add(Calendar.DATE, -1);// 减去一天，变为当月最后一天 str.append(sdf.format(lastDate.getTime())); str.append(" 23:59:59"); return str.toString(); } /** * 获取当前年第一天 小时分钟为00:00:00 **/ public static String getCurrentYearFirst() { StringBuffer str = new StringBuffer(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar cd = Calendar.getInstance(); cd.set(Calendar.DAY_OF_YEAR, 1);// 把日期设为当年第一天 str.append(sdf.format(cd.getTime())); str.append(" 00:00:00"); return str.toString(); } /** * 获取当前年最后一天 小时分钟为23:59:59 **/ public static String getCurrentYearLast() { StringBuffer str = new StringBuffer(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar cd = Calendar.getInstance(); cd.set(Calendar.DAY_OF_YEAR, 1);// 把日期设为当年第一天 cd.add(Calendar.YEAR, 1); cd.add(Calendar.DATE, -1); str.append(sdf.format(cd.getTime())); str.append(" 23:59:59"); return str.toString(); } /** * 根据日期获取季度 * @param cal * @return */ public static int getSeason() { Calendar cal = Calendar.getInstance(); int month = cal.get(Calendar.MONTH); return (month + 1 + 2) / 3; } /** * 根据获取季度的第一天 小时分钟为00:00:00 * @param cal * @return */ public static String getSeasonFirstDay(int i) { StringBuffer str = new StringBuffer(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar cal = Calendar.getInstance(); if (i == 1) { i = 0; } else if (i == 2) { i = 3; } else if (i == 3) { i = 6; } else if (i == 4) { i = 9; } cal.set(Calendar.MONTH, i);// 设为季度开始月 cal.set(Calendar.DATE, 1); str.append(sdf.format(cal.getTime())); str.append(" 00:00:00"); return str.toString(); } /** * 根据获取季度的最后一天 * @param cal * @return */ public static String getSeasonLastDay(int i) { StringBuffer str = new StringBuffer(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar cal = Calendar.getInstance(); if (i == 1) { i = 2; } else if (i == 2) { i = 5; } else if (i == 3) { i = 8; } else if (i == 4) { i = 11; } cal.set(Calendar.MONTH, i);// 设为季度开始月 cal.set(Calendar.DATE, 1);// 设季度开始月的第一天 cal.add(Calendar.MONTH, 1);// 当前季度最后一月的下一月 cal.add(Calendar.DATE, -1);// 当前季度最后一月的最后一天 str.append(sdf.format(cal.getTime())); str.append(" 23:59:59"); return str.toString(); } /** * 获取当前月 * @param cal * @return */ public static String getMonth() { SimpleDateFormat sdf = new SimpleDat