时间的处理

获取当前时间：

public String nowTime() {
		Date currentTime = new Date();  
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
        String dateString = formatter.format(currentTime);  
        return dateString;
	}

时间的对比：

public int timeCompare(String t1,Date t2){  
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
        Calendar c1=Calendar.getInstance();  
        Calendar c2=Calendar.getInstance();  
        try {  
            c1.setTime(formatter.parse(t1));  
            c2.setTime(t2);  
        } catch (ParseException e) {  
            e.printStackTrace();  
        }  
        int result=c1.compareTo(c2);  
        return result;  
    }