dateformat.java

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package com.common;

import java.text.SimpleDateFormat;
import java.util.Date;

public class DateFormat {

	public static String getSysTime(){
		SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		return sdf.format(new Date());		
	}
	public static void main(String[] dd){
		int i=1234;
		
		
	}
	
	public static byte[] intTobyte(int _int){
		byte[] _byte=new byte[4];
		for(int i=0;i<_byte.length;i++){
			_byte[i]=(byte)(_int>>(3-i)*8);	
		}
		return _byte;
	}
	public static int byteToint(byte[] _byte) {
		int _int=0;
		int mask = 0xff;
		int temp = 0;
		for (int i = 0; i < 4; i++) {
			_int <<= 8;
			temp = _byte[i] & mask;
			_int |= temp;
		}
		return _int;
	}
}