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

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

一、Java：

 

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();
    }
}

二、JavaScript：

 

 

(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);

三、PHP：

 

 

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);
}

四、MySql：

 

 

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

五、Oracle：

 

 

select sys_guid() from dual;//大写

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