时间util

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1获取日期几分钟前，几年前

public static Date dateToString(String time){Date startTime = null;try { startTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(time);} catch (ParseException e) {e.printStackTrace();}return startTime;}

public static String getTimeFormat(String startTime){return getTimeFormat(dateToString(startTime));}

public static String getTimeFormat(Date startTime){try{long startTimeMills = startTime.getTime();long endTimeMills = System.currentTimeMillis();long diff = (endTimeMills - startTimeMills)/1000;//秒long day_diff  = (long) Math.floor(diff/86400);//天StringBuffer buffer = new StringBuffer();if(day_diff<0){return "[error],时间越界...";}else{if(day_diff==0 && diff<60){if(diff==0)diff=1;buffer.append(diff+"秒前");}else if(day_diff==0 && diff<120){buffer.append("1 分钟前");}else if(day_diff==0 && diff<3600){buffer.append(Math.round(Math.floor(diff/60))+"分钟以前");}else if(day_diff==0 && diff<7200){buffer.append("1小时前");}else if(day_diff==0 && diff<86400){buffer.append(Math.round(Math.floor(diff/3600))+"小时前");}else if(day_diff==1){buffer.append("1天前");}else if(day_diff<7){buffer.append(day_diff+"天前");}else if(day_diff <30){buffer.append(Math.round(Math.ceil( day_diff / 7 )) + " 星期前");}else if(day_diff >=30 && day_diff<=179 ){buffer.append(Math.round(Math.ceil( day_diff / 30 )) + "月前");}else if(day_diff >=180 && day_diff<365){buffer.append("半年前");}else if(day_diff>=365){buffer.append(Math.round(Math.ceil( day_diff /30/12))+"年前");}}return buffer.toString();}catch(Exception ex){return "";}}

main

public static void main(String[] args)  {System.out.println(getTimeFormat(dateToString("2015-02-23 22:22:22")));}

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