后台代码:
<?php //send用户加入 //send1发送信息 //send2退出登录 error_reporting(E_ALL ^ E_NOTICE); ob_implicit_flush(); //连接服务器 $sk = new Sock(‘127.0.0.1‘,8000); $sk->run(); class Sock{ public $sockets; public $users; public $master; private $sda = array();//已接收的数据 private $slen = array();//数据总长度 private $sjen = array();//接收数据的长度 private $ar = array();//加密key private $n = array(); public function __construct($address, $port){ $this->master = $this->WebSocket($address, $port);//resource(2, Socket) //服务器监听 var_dump($this->master); $this->sockets = array($this->master);//array (size=1) 0 => resource(2, Socket) 。运行两个php还是这样 //var_dump($this->sockets); //file_put_contents(‘lz.text‘,var_dump($this->sockets), FILE_APPEND); } public function run(){ while(true){ $changes = $this->sockets;//$changes由多变1,但$this->sockets却只是稳定的+1; $write = NULL; $except = NULL; //1.运行select()系统调用在给定阵列插座与指定的超时 //2.没有接收到数据就会一直处于阻塞状态, //3.若没有client过来,直阻塞进程,直到有client访问,返回1。 //4.此时返回的changes,不是曾经的changes。虽然还只是一条记录,但已经不是服务器而是客户端 /*select的特殊作用:!!!!!!! 初始为array(0=>resource(2, Socket)) 1,初始状态返回为array(0=>resource(2, Socket))。但socket_accept可以得到resource(3, Socket) 2,初始状态返回为array(0=>resource(2, Socket),1=>resource(3,Socket))。 客户来的客户为resource(3,Socket)。则返回的数据为resource(3,Socket).!!! */ var_dump($changes); $rr = socket_select($changes,$write,$except,NULL); var_dump($changes); var_dump("---*---"); //exit; // file_put_contents(‘./lz1.text‘,json_encode($changes), FILE_APPEND); // file_put_contents(‘./lz.text‘,‘-----‘, FILE_APPEND); foreach($changes as $sock){ //连接主机的client //$this->master永远是 resource(2, Socket)。相当于一个缓存。两种情况,1:为空,使进程阻塞。2:存刚接收的client。 if($sock == $this->master){ //---此处只用来存数据了 //在socket套接字已创建使用socket_create(),必将与socket_bind()名字,告诉听连接socket_listen(),这个函数将接受传入的连接,插座。 //一旦成功连接,将返回一个!!新的套接字资源!!,该资源可用于通信。如果套接字上有多个连接,则第一个将被使用。 //如果没有挂起的连接,socket_accept()将阻塞直到连接成为现在。如果使用了非阻塞套接字已socket_set_blocking()或socket_set_nonblock(),错误将返回。 //返回socket_accept()插座资源不得用于接受新的连接。原来的听插座插座,但是,仍然是开放的,可以重复使用。 $client = socket_accept($this->master); //resource(3, Socket)。表示接受请求,并创建一个子链接!! //var_dump($client); //exit; $key = uniqid(); $this->sockets[] = $client; $this->users[$key] = array( ‘socket‘ => $client, ‘shou‘ => false ); /* array (size=1) ‘57d607085f92a‘ => //$key array (size=2) ‘socket‘ => resource(3, Socket) //$socket的表现都一样,只有通过$key区分 ‘shou‘ => boolean false */ // file_put_contents(‘lz.text‘,json_encode($this->users), FILE_APPEND); }else{ //---此处服务器与客户端发信息 $len = 0; $buffer = ‘‘; do{ /* int socket_recv ( resource socket, string &buf, int len, int flags ) resource socket 是生成的套接字 string &buf 是接收缓冲区 int len 是你打算接收的长度 int flags 是一个标志 0x1 数据应该带外发送,所谓带外数据就是TCP紧急数据 0x2 使有用的数据复制到缓冲区内,但并不从系统缓冲区内删除。 0x4 不要将包路由出去。 以上三项与sock.h文件中定义完全相同 0x8 数据完整记录 0x100 数据完整处理 */ $l = socket_recv($sock,$buf,1000,0);//原来取数据是一个缓慢的过程,要一次一次取数据,并计算每次buf的长度,让总长度不超过设定值 //var_dump($l); // exit; // file_put_contents(‘lz.text‘,‘socket_recv‘, FILE_APPEND); $len += $l; $buffer.=$buf; } while ($l == 1000); $k = $this->search($sock);//跟据sock返回key值 // file_put_contents(‘./d.txt‘, $k.PHP_EOL,FILE_APPEND); if($len < 7){ //发过来的消息太短了,系统就判断 断了,断掉链接。 $this->send2($k);//用户退出。1关闭这个$key值对应的socket、删除这条key记录。将sockets数组对象重新排列。 continue; } if(!$this->users[$k][‘shou‘]){//判断用户的握手字段是true?否则重新握手。 $this->woshou($k,$buffer); //file_put_contents(‘lz.text‘,‘woshou‘, FILE_APPEND); }else{ //如果用户已经握手,则与用户之间进行通信。终于可以发消息了! $buffer = $this->uncode($ ,$k); //返编译 if($buffer == false){ continue; } $this->send($k,$buffer); } } } } } public function close($k){ socket_close($this->users[$k][‘socket‘]); unset($this->users[$k]); $this->sockets = array($this->master); foreach($this->users as $v){ $this->sockets[]=$v[‘socket‘]; } $this->e("key:$k close"); } function search($sock){ foreach ($this->users as $k => $v){ if($sock == $v[‘socket‘]) return $k; } return false; } function WebSocket($address,$port){ //服务器监听 //创建并返回一个套接字resource,也称作一个通讯节点。一个典型的网络连接由 2 个套接字构成,一个运行在客户端,另一个运行在服务器端。 //协议,类型,具体协议 $server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); //resource(2, Socket) //file_put_contents(‘lz.text‘,$server, FILE_APPEND);//supplied resource is not a valid stream resource //返回bool.套接字resource,协议级别,可用的socket选项,值。 $r = socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);//boolean true //绑定 address 到 socket。 该操作必须是在使用 socket_connect() 或者 socket_listen() 建立一个连接之前。 $r2 = socket_bind($server, $address, $port);//boolean true //在socket套接字已创建使用socket_create()定界与socket_bind()名称,它可以告诉听套接字传入的连接. $r3 = socket_listen($server);//boolean true $this->e(‘Server Started : ‘.date(‘Y-m-d H:i:s‘)); $this->e(‘Listening on : ‘.$address.‘ port ‘.$port); return $server; } function woshou($k,$buffer){ //对接收到的buffer处理,并回馈握手!! $buf = substr($buffer,strpos($buffer,‘Sec-WebSocket-Key:‘)+18); $key = trim(substr($buf,0,strpos($buf,"\r\n"))); $new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true)); $new_message = "HTTP/1.1 101 Switching Protocols\r\n"; $new_message .= "Upgrade: websocket\r\n"; $new_message .= "Sec-WebSocket-Version: 13\r\n"; $new_message .= "Connection: Upgrade\r\n"; $new_message .= "Sec-WebSocket-Accept: " . $new_key . "\r\n\r\n"; socket_write($this->users[$k][‘socket‘],$new_message,strlen($new_message));//sokcet,buffer(缓冲区),长度 $this->users[$k][‘shou‘]=true; return true; } function uncode($str,$key){ //返编译 $mask = array(); $data = ‘‘; $msg = unpack(‘H*‘,$str);//unpack() 函数从二进制字符串对数据进行解包。 $head = substr($msg[1],0,2); if ($head == ‘81‘ && !isset($this->slen[$key])) { $len=substr($msg[1],2,2); $len=hexdec($len); if(substr($msg[1],2,2)==‘fe‘){ $len=substr($msg[1],4,4); $len=hexdec($len);//hexdec() 函数把十六进制转换为十进制。 $msg[1]=substr($msg[1],4); }else if(substr($msg[1],2,2)==‘ff‘){ $len=substr($msg[1],4,16); $len=hexdec($len); $msg[1]=substr($msg[1],16); } $mask[] = hexdec(substr($msg[1],4,2)); $mask[] = hexdec(substr($msg[1],6,2)); $mask[] = hexdec(substr($msg[1],8,2)); $mask[] = hexdec(substr($msg[1],10,2)); $s = 12; $n=0; }else if($this->slen[$key] > 0){ $len=$this->slen[$key]; $mask=$this->ar[$key]; $n=$this->n[$key]; $s = 0; } $e = strlen($msg[1])-2; for ($i=$s; $i<= $e; $i+= 2) { $data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2))); $n++; } $dlen=strlen($data); if($len > 255 && $len > $dlen+intval($this->sjen[$key])){ $this->ar[$key]=$mask; $this->slen[$key]=$len; $this->sjen[$key]=$dlen+intval($this->sjen[$key]); $this->sda[$key]=$this->sda[$key].$data; $this->n[$key]=$n; return false; }else{ unset($this->ar[$key],$this->slen[$key],$this->sjen[$key],$this->n[$key]); $data=$this->sda[$key].$data; unset($this->sda[$key]); return $data; } } function code($msg){ //编译 $frame = array(); $frame[0] = ‘81‘; $len = strlen($msg); if($len < 126){ $frame[1] = $len<16?‘0‘.dechex($len):dechex($len); }else if($len < 65025){ $s=dechex($len); $frame[1]=‘7e‘.str_repeat(‘0‘,4-strlen($s)).$s; }else{ $s=dechex($len); $frame[1]=‘7f‘.str_repeat(‘0‘,16-strlen($s)).$s; } $frame[2] = $this->ord_hex($msg); $data = implode(‘‘,$frame); return pack("H*", $data); } function ord_hex($data) { $msg = ‘‘; $l = strlen($data); for ($i= 0; $i<$l; $i++) { $msg .= dechex(ord($data{$i})); } return $msg; } //用户加入 function send($k,$msg){ parse_str($msg,$g);//把查询字符串解析到变量中 $ar = array(); if($g[‘type‘] == ‘add‘){ $this->users[$k][‘name‘] = $g[‘ming‘]; $ar[‘type‘] = ‘add‘; $ar[‘name‘] = $g[‘ming‘]; $key = ‘all‘; }else{ $ar[‘nrong‘] = $g[‘nr‘]; $key = $g[‘key‘]; } $this->send1($k,$ar,$key); } function getusers(){ $ar = array(); foreach($this->users as $k => $v){ $ar[]=array(‘code‘ => $k,‘name‘ => $v[‘name‘]); } return $ar; } //$k 发信息人的code $key接受人的 code function send1($k,$ar,$key=‘all‘){ $ar[‘code1‘]=$key; $ar[‘code‘]=$k; $ar[‘time‘]=date(‘m-d H:i:s‘); $str = $this->code(json_encode($ar)); if($key == ‘all‘){ $users = $this->users; if($ar[‘type‘] == ‘add‘){ $ar[‘type‘] = ‘madd‘; $ar[‘users‘] = $this->getusers(); $str1 = $this->code(json_encode($ar)); socket_write($users[$k][‘socket‘],$str1,strlen($str1));//发送者 unset($users[$k]); } foreach($users as $v){ socket_write($v[‘socket‘],$str,strlen($str));//接收者 } }else{ socket_write($this->users[$k][‘socket‘],$str,strlen($str));//发送者 socket_write($this->users[$key][‘socket‘],$str,strlen($str));//接收者 } } //用户退出 function send2($k){ $this->close($k); $ar[‘type‘]=‘rmove‘; $ar[‘nrong‘]=$k; $this->send1(false,$ar,‘all‘); } function e($str){ //$path=dirname(__FILE__).‘/log.txt‘; $str = $str."\n"; //error_log($str,3,$path); echo iconv(‘utf-8‘,‘gbk//IGNORE‘,$str); } }
前台代码:
<!DOCTYPE html> <html> <head> <title>php websocket聊天室 - 支持私聊</title> <meta charset="utf-8" /> </head> <style type="text/css"> body,p{margin:0px; padding:0px; font-size:14px; color:#333; font-family:Arial, Helvetica, sans-serif;} #ltian,.rin{width:98%; margin:5px auto;} #ltian{border:1px #ccc solid;overflow-y:auto; overflow-x:hidden; position:relative;} #ct{margin-right:111px; height:100%;overflow-y:auto;overflow-x: hidden;} #us{width:110px; overflow-y:auto; overflow-x:hidden; float:right; border-left:1px #ccc solid; height:100%; background-color:#F1F1F1;} #us p{padding:3px 5px; color:#08C; line-height:20px; height:20px; cursor:pointer; overflow:hidden; white-space:nowrap; text-overflow:ellipsis;} #us p:hover,#us p:active,#us p.ck{background-color:#069; color:#FFF;} #us p.my:hover,#us p.my:active,#us p.my{color:#333;background-color:transparent;} button{float:right; width:80px; height:35px; font-size:18px;} input{width:100%; height:30px; padding:2px; line-height:20px; outline:none; border:solid 1px #CCC;} .rin p{margin-right:160px;} .rin span{float:right; padding:6px 5px 0px 5px; position:relative;} .rin span img{margin:0px 3px; cursor:pointer;} .rin span form{position:absolute; width:25px; height:25px; overflow:hidden; opacity:0; top:5px; right:5px;} .rin span input{width:180px; height:25px; margin-left:-160px; cursor:pointer} #ct p{padding:5px; line-height:20px;} #ct a{color:#069; cursor:pointer;} #ct span{color:#999; margin-right:10px;} .c2{color:#999;} .c3{background-color:#DBE9EC; padding:5px;} .qp{position:absolute; font-size:12px; color:#666; top:5px; right:130px; text-decoration:none; color:#069;} #ems{position:absolute; z-index:5; display:none; top:0px; left:0px; max-width:230px; background-color:#F1F1F1; border:solid 1px #CCC; padding:5px;} #ems img{width:44px; height:44px; border:solid 1px #FFF; cursor:pointer;} #ems img:hover,#ems img:active{border-color:#A4B7E3;} #ems a{color:#069; border-radius:2px; display:inline-block; margin:2px 5px; padding:1px 8px; text-decoration:none; background-color:#D5DFFD;} #ems a:hover,#ems a:active,#ems a.ck{color:#FFF; background-color:#069;} .tc{text-align:center; margin-top:5px;} </style> <body> <div id="ltian"> <div id="us" class="jb"></div> <div id="ct"></div> <a href="javascript:;" class="qp" onClick="this.parentNode.children[1].innerHTML=‘‘">清屏</a> </div> <div class="rin"> <button id="sd">发送</button> <span> <img src="http://www.yxsss.com/ui/sk/t.png" title="表情" id="imgbq"> <img src="http://www.yxsss.com/ui/sk/e.png" title="上传图片"> <form> <input type="file" title="上传图片" id="upimg"> </form> </span> <p><input id="nrong"></p> </div> <div id="ems"> <p></p> <p class="tc"></p> </div> <script> if(typeof(WebSocket)==‘undefined‘){ alert(‘你的浏览器不支持 WebSocket ,推荐使用Google Chrome 或者 Mozilla Firefox‘); } </script> <script src="http://www.yxsss.com/ui/p/a.js" type="text/javascript"></script> <script> (function(){ var key = ‘all‘,mkey; var users = {}; var url = ‘ws://127.0.0.1:8000‘; var so = false,n=false; var lus = A.$(‘us‘),lct = A.$(‘ct‘); function st(){ n = prompt(‘请给自己取一个响亮的名字:‘); n = n.substr(0,16); if(!n){ return ; } so = new WebSocket(url); //连接聊天室事件 so.onopen = function(){ if(so.readyState==1){ // alert(‘连接成功‘); console.log(‘聊天室连接成功‘); so.send(‘type=add&ming=‘+n); } } //断开连接事件 so.onclose=function(){ so = false; lct.appendChild(A.$$(‘<p class="c2">退出聊天室</p>‘)); } //接收消息事件 so.onmessage = function(msg){ console.log(msg); eval(‘var da=‘+msg.data); var obj = false,c = false; if(da.type == ‘add‘){ //有新连接事件的时候执行的方法 var obj = A.$$(‘<p>‘+da.name+‘</p>‘); lus.appendChild(obj); cuser(obj,da.code); obj = A.$$(‘<p><span style="color:blue;">[‘+da.time+‘]</span>欢迎<a>‘+da.name+‘</a>加入</p>‘); c = da.code; }else if(da.type == ‘madd‘){ //我自己加入时执行的事件 mkey = da.code; da.users.unshift({‘code‘:‘all‘,‘name‘:‘全部用户‘}); //将所有的用户写入到页面上 for(var i = 0;i<da.users.length;i++){ var obj = A.$$(‘<p>‘+da.users[i].name+‘</p>‘); lus.appendChild(obj); if(mkey!=da.users[i].code){ //写入其他用户的信息 cuser(obj,da.users[i].code); }else{ //写入自己的信息 obj.className = ‘my‘; document.title = da.users[i].name; } } obj=A.$$(‘<p><span>[‘+da.time+‘]</span>欢迎‘+da.name+‘加入</p>‘); users.all.className = ‘ck‘; } //既不是新用户加入,也不是我自己连接 if(obj == false){ if(da.type == ‘rmove‘){ //断开连接退出事件 var obj=A.$$(‘<p class="c2"><span>[‘+da.time+‘]</span>‘+users[da.nrong].innerHTML+‘退出聊天室</p>‘); lct.appendChild(obj); users[da.nrong].del(); delete users[da.nrong]; }else{ //消息接收 da.nrong = da.nrong.replace(/{\\(\d+)}/g,function(a,b){ //表情 return ‘<img src="sk/‘+b+‘.gif">‘; }).replace(/^data\:image\/png;base64\,.{50,}$/i,function(a){ //base_64图片 return ‘<img src="‘+a+‘">‘; }); //da.code1(接受者的code) data.code 发送者的cide if(da.code1 == mkey){ //收消息人是我自己 obj = A.$$(‘<p class="c3"><span>[‘+da.time+‘]</span><a>‘+users[da.code].innerHTML+‘</a>对我说:‘+da.nrong+‘</p>‘); c = da.code; //发消息人是我自己 }else if(da.code == mkey){ //接收人不是全部用户 if(da.code1 != ‘all‘){ obj = A.$$(‘<p class="c3"><span>[‘+da.time+‘]</span>我对<a>‘+users[da.code1].innerHTML+‘</a>说:‘+da.nrong+‘</p>‘); }else{ //接收人是全部用户 obj = A.$$(‘<p><span>[‘+da.time+‘]</span>我对<a>‘+users[da.code1].innerHTML+‘</a>说:‘+da.nrong+‘</p>‘); c = da.code1; } }else if(da.code == false){ obj = A.$$(‘<p><span>[‘+da.time+‘]</span>‘+da.nrong+‘</p>‘); }else if(da.code1){ obj = A.$$(‘<p><span>[‘+da.time+‘]</span><a>‘+users[da.code].innerHTML+‘</a>对‘+users[da.code1].innerHTML+‘说:‘+da.nrong+‘</p>‘); c = da.code; } } } if(c){ obj.children[1].onclick=function(){ users[c].onclick(); } } lct.appendChild(obj); lct.scrollTop=Math.max(0,lct.scrollHeight-lct.offsetHeight); } } A.$(‘sd‘).onclick=function(){ if(!so){ return st(); } var da=A.$(‘nrong‘).value.trim(); if(da==‘‘){ alert(‘内容不能为空‘); return false; } A.$(‘nrong‘).value=‘‘; so.send(‘nr=‘+esc(da)+‘&key=‘+key); } A.$(‘nrong‘).onkeydown=function(e){ var e=e||event; if(e.keyCode==13){ A.$(‘sd‘).onclick(); } } function esc(da){ da=da.replace(/</g,‘<‘).replace(/>/g,‘>‘).replace(/\"/g,‘"‘); return encodeURIComponent(da); } function cuser(t,code){ users[code]=t; t.onclick=function(){ t.parentNode.children.rcss(‘ck‘,‘‘); t.rcss(‘‘,‘ck‘); key=code; } } A.$(‘ltian‘).style.height=(document.documentElement.clientHeight - 70)+‘px‘; st(); var bq=A.$(‘imgbq‘),ems=A.$(‘ems‘); var l=80,r=4,c=5,s=0,p=Math.ceil(l/(r*c)); var pt=‘sk/‘; bq.onclick=function(e){ var e=e||event; if(!so){ return st(); } ems.style.display=‘block‘; document.onclick=function(){ gb(); } ct(); try{e.stopPropagation();}catch(o){} } for(var i=0;i<p;i++){ var a=A.$$(‘<a href="javascript:;">‘+(i+1)+‘</a>‘); ems.children[1].appendChild(a); ef(a,i); } ems.children[1].children[0].className=‘ck‘; function ct(){ var wz=bq.weiz(); with(ems.style){ top=wz.y-242+‘px‘; left=wz.x+bq.offsetWidth-235+‘px‘; } } function ef(t,i){ t.onclick=function(e){ var e=e||event; s=i*r*c; ems.children[0].innerHTML=‘‘; hh(); this.parentNode.children.rcss(‘ck‘,‘‘); this.rcss(‘‘,‘ck‘); try{e.stopPropagation();}catch(o){} } } function hh(){ var z=Math.min(l,s+r*c); for(var i=s;i<z;i++){ var a=A.$$(‘<img src="‘+pt+i+‘.gif">‘); hh1(a,i); ems.children[0].appendChild(a); } ct(); } function hh1(t,i){ t.onclick=function(e){ var e=e||event; A.$(‘nrong‘).value+=‘{\\‘+i+‘}‘; if(!e.ctrlKey){ gb(); } try{e.stopPropagation();}catch(o){} } } function gb(){ ems.style.display=‘‘; A.$(‘nrong‘).focus(); document.onclick=‘‘; } hh(); A.on(window,‘resize‘,function(){ A.$(‘ltian‘).style.height=(document.documentElement.clientHeight - 70)+‘px‘; ct(); }); var fimg = A.$(‘upimg‘); var img = new Image(); var dw = 400,dh = 300; A.on(fimg,‘change‘,function(ev){ if(!so){ st(); return false; } if(key==‘all‘){ alert(‘由于资源限制 发图只能私聊‘); return false; } var f=ev.target.files[0]; if(f.type.match(‘image.*‘)){ var r = new FileReader(); r.onload = function(e){ img.setAttribute(‘src‘,e.target.result); }; r.readAsDataURL(f); } }); img.onload=function(){ ih=img.height,iw=img.width; if(iw/ih > dw/dh && iw > dw){ ih=ih/iw*dw; iw=dw; }else if(ih > dh){ iw=iw/ih*dh; ih=dh; } var rc = A.$$(‘canvas‘); var ct = rc.getContext(‘2d‘); rc.width=iw; rc.height=ih; ct.drawImage(img,0,0,iw,ih); var da=rc.toDataURL(); so.send(‘nr=‘+esc(da)+‘&key=‘+key); } })(); </script> </body> </html>
引入的js代码(a.js),防止连接失效
var _w=window,_d=document; String.prototype.trim=function(){return this.replace(/(^\s+)|(\s+$)/g,‘‘)}; HTMLElement.prototype.rcss=function(a,b){ if(a==‘‘){ eval(‘var s = new RegExp(/\\b‘+b+‘\\b/)‘); if(!s.test(this.className)){ this.className=this.className.trim()+‘ ‘+b; } }else{ eval(‘var s=this.className.replace(/\\b‘+a+‘\\b/g,b)‘); this.className=s.trim(); } return this; } HTMLElement.prototype.del=function(){ this.parentNode.removeChild(this); } Array.prototype.each=HTMLCollection.prototype.each=NodeList.prototype.each=function(f){ for(var i=0,l=this.length;i<l;i++){ f(this[i],i,this); } return this; } HTMLCollection.prototype.rcss=NodeList.prototype.rcss=function(a,b){ this.each(function(t){t.rcss(a,b);}); return this; } NodeList.prototype.del=function(){ this.each(function(t){t.del();}); } HTMLElement.prototype.prev=function(){ return this.previousElementSibling||this.previousSibling; } HTMLElement.prototype.next=function(){ return this.nextElementSibling||this.nextSibling; } HTMLElement.prototype.weiz=function(){ var y=this.offsetTop,x=this.offsetLeft,e=this.offsetParent; while(e){ y+=e.offsetTop; x+=e.offsetLeft; e=e.offsetParent }; return{ ‘y‘:y,‘x‘:x } } A={ $:function(id){ return _d.getElementById(id); }, $$:function(a){ if(a.indexOf(‘<‘)==-1){ return _d.createElement(a); } else{ var _1=_d.createElement(‘div‘); _1.innerHTML=a; return _1.children[0]; } }, r:function(n,m,f){ if(f){ return Math.random()*(m-n)+n }else{ return Math.round(Math.random()*(m-n)+n); } }, aj:function(url,data,f,gs){ var self=this; var k=url.replace(/[^\w]/g,‘‘); if(typeof(self.ajone[k])==‘undefined‘){ self.ajone[k]=true; if(_w.XMLHttpRequest){ var xm=new XMLHttpRequest() } else{ var M=[‘MSXML2.XMLHTTP‘,‘Microsoft.XMLHTTP‘,‘MSXML2.XMLHTTP.5.0‘,‘MSXML2.XMLHTTP.4.0‘,‘MSXML2.XMLHTTP.3.0‘]; for(n=0;n<M.length;n++){ try{ var xm=new ActiveXObject(M[n]); break } catch(e){} } }; xm.open("post",url,true); xm.setRequestHeader("is_ajax","1"); xm.onreadystatechange=function(){ if(xm.readyState==4){ if(xm.status==200){ delete self.ajone[k]; if(f){ if(typeof(f)==‘string‘)A.$(f).innerHTML=xm.responseText; else{ if(gs&&gs==‘json‘){ eval(‘var _j=‘+xm.responseText); eval(f(_j)) } else eval(f(xm.responseText)) } } } } }; xm.setRequestHeader("Content-Type","application/x-www-form-urlencoded;"); xm.send(data) } }, on:function(el,ev,fn){ if(el.attachEvent){ el.attachEvent("on"+ev,function(){ fn.apply(el,arguments) }) } else{ el.addEventListener(ev,fn,false) } }, fnr:function(f){ var s=[]; for(var i=0,l=f.length;i<l;i++){ if(f[i].name&&f[i].name!=‘‘){ switch(f[i].tagName.toLowerCase()){ case‘select‘:for(var a=0;a<f[i].length;a++){ if(f[i][a].selected){ s.push(f[i].name+‘=‘+encodeURIComponent(f[i][a].value)) } }; break; default:switch(f[i].type.toLowerCase()){ case‘radio‘:var fo=f[f[i].name]; for(var a=0;a<fo.length;a++){ if(fo[a].checked){ s.push(fo[a].name+‘=‘+encodeURIComponent(fo[a].value)); break } }; i+=(fo.length-1); break; case‘checkbox‘:if(f[i].checked){ s.push(f[i].name+‘=‘+encodeURIComponent(f[i].value)) }; break; default:s.push(f[i].name+‘=‘+encodeURIComponent(f[i].value)); break } } } }; return s.join(‘&‘) } };
原文地址:https://www.cnblogs.com/wanghjun/p/9830601.html
时间: 2024-11-10 08:19:51