Java、JavaScript、php、mysql、oracle生成uuid（32位）

import java.net.InetAddress;

public class IDGenerator {

private String sep = "";

private static final int IP;

private static short counter = (short) 0;

private static final int JVM = (int) (System.currentTimeMillis() >>> 8);

private static IDGenerator uuidgen = new IDGenerator();

static {
int ipadd;
try {
ipadd = toInt(InetAddress.getLocalHost().getAddress());
} catch (Exception e) {
ipadd = 0;
}
IP = ipadd;
}

public static IDGenerator getInstance() {
return uuidgen;
}

public static int toInt(byte[] bytes) {
int result = 0;
for (int i = 0; i < 4; i++) {
result = (result << 8) - Byte.MIN_VALUE + (int) bytes[i];
}
return result;
}

protected String format(int intval) {
String formatted = Integer.toHexString(intval);
StringBuffer buf = new StringBuffer("00000000");
buf.replace(8 - formatted.length(), 8, formatted);
return buf.toString();
}

protected String format(short shortval) {
String formatted = Integer.toHexString(shortval);
StringBuffer buf = new StringBuffer("0000");
buf.replace(4 - formatted.length(), 4, formatted);
return buf.toString();
}

protected int getJVM() {
return JVM;
}

protected synchronized short getCount() {
if (counter < 0) {
counter = 0;
}
return counter++;
}

protected int getIP() {
return IP;
}

protected short getHiTime() {
return (short) (System.currentTimeMillis() >>> 32);
}

protected int getLoTime() {
return (int) System.currentTimeMillis();
}

public String generate() {
return new StringBuffer(36).append(format(getIP())).append(sep).append(
format(getJVM())).append(sep).append(format(getHiTime()))
.append(sep).append(format(getLoTime())).append(sep).append(
format(getCount())).toString();
}
}

(function(window){
//On creation of a UUID object, set it's initial value
function UUID() {
this.id = this.createUUID();
}

// When asked what this Object is, lie and return it's value
UUID.prototype.valueOf = function() {
return this.id;
};
UUID.prototype.toString = function() {
return this.id;
};

//
// INSTANCE SPECIFIC METHODS
//
UUID.prototype.createUUID = function() {
//
// Loose interpretation of the specification DCE 1.1: Remote Procedure Call
// since JavaScript doesn't allow access to internal systems, the last 48 bits
// of the node section is made up using a series of random numbers (6 octets long).
//
var dg = new Date(1582, 10, 15, 0, 0, 0, 0);
var dc = new Date();
var t = dc.getTime() - dg.getTime();
var tl = UUID.getIntegerBits(t, 0, 31);
var tm = UUID.getIntegerBits(t, 32, 47);
var thv = UUID.getIntegerBits(t, 48, 59) + '1'; // version 1, security version is 2
var csar = UUID.getIntegerBits(UUID.rand(4095), 0, 7);
var csl = UUID.getIntegerBits(UUID.rand(4095), 0, 7);
// since detection of anything about the machine/browser is far to buggy,
// include some more random numbers here
// if NIC or an IP can be obtained reliably, that should be put in
// here instead.
var n = UUID.getIntegerBits(UUID.rand(8191), 0, 7)
+ UUID.getIntegerBits(UUID.rand(8191), 8, 15)
+ UUID.getIntegerBits(UUID.rand(8191), 0, 7)
+ UUID.getIntegerBits(UUID.rand(8191), 8, 15)
+ UUID.getIntegerBits(UUID.rand(8191), 0, 15); // this last number is two octets long
return tl + tm + thv + csar + csl + n;
};

//Pull out only certain bits from a very large integer, used to get the time
//code information for the first part of a UUID. Will return zero's if there
//aren't enough bits to shift where it needs to.
UUID.getIntegerBits = function(val, start, end) {
var base16 = UUID.returnBase(val, 16);
var quadArray = new Array();
var quadString = '';
var i = 0;
for (i = 0; i < base16.length; i++) {
quadArray.push(base16.substring(i, i + 1));
}
for (i = Math.floor(start / 4); i <= Math.floor(end / 4); i++) {
if (!quadArray[i] || quadArray[i] == '')
quadString += '0';
else
quadString += quadArray[i];
}
return quadString;
};

//Replaced from the original function to leverage the built in methods in
//JavaScript. Thanks to Robert Kieffer for pointing this one out
UUID.returnBase = function(number, base) {
return (number).toString(base).toUpperCase();
};

//pick a random number within a range of numbers
//int b rand(int a); where 0 <= b <= a
UUID.rand = function(max) {
return Math.floor(Math.random() * (max + 1));
};

//变成全局函数
window.createUUID = function(type){
var _type = (typeof type == 'undefined' || (type!='l'&&type!='u')) ? 'l' : type;
if(_type=='u'){
return new UUID().toString();
}else {
return new UUID().toString().toLowerCase();
}
};
})(window);

class System {
function currentTimeMillis() {
list ($usec, $sec) = explode("  ", microtime());
return $sec . substr($usec, 2, 3);
}
}
class NetAddress {
var $Name = 'localhost';
var $IP = '127.0.0.1';
function getLocalHost() //  static
{
$address = new NetAddress();
$address->Name = $_ENV["COMPUTERNAME"];
$address->IP = $_SERVER["SERVER_ADDR"];
return $address;
}
function toString() {
return strtolower($this->Name . '/' . $this->IP);
}
}
class Random {
function nextLong() {
$tmp = rand(0, 1) ? '-' : '';
return $tmp . rand(1000, 9999) . rand(1000, 9999) . rand(1000, 9999) . rand(100, 999) . rand(100, 999);
}
}
//  三段
//  一段是微秒  一段是地址  一段是随机数
class Guid {
var $valueBeforeMD5;
var $valueAfterMD5;
function Guid() {
$this->getGuid();
}
//
function getGuid() {
$address = NetAddress :: getLocalHost();
$this->valueBeforeMD5 = $address->toString() . ':' . System :: currentTimeMillis() . ':' . Random :: nextLong();
$this->valueAfterMD5 = md5($this->valueBeforeMD5);
}
function newGuid() {
$Guid = new Guid();
return $Guid;
}
function toString() {
$raw = strtoupper($this->valueAfterMD5);
return substr($raw, 0, 8) . substr($raw, 8, 4) . substr($raw, 12, 4) . substr($raw, 16, 4) . substr($raw, 20);
}
}

//生成32位uuid
function createUUID(){
$Guid = new Guid();
$uuid = $Guid->toString();
return strtolower($uuid);
}

SELECT UUID();  //带“-”
SELECT REPLACE(UUID(), '-', '');  //不带“-”

select sys_guid() from dual;//大写

select LOWER(sys_guid()) from dual;//小写