数据读取不同步问题

bizman · 发表于 2008-5-5 16:41:19

我这有三个页面
A->FTP发送文件（php执行）边发边存SESSION
B->读SESSION-输出JS
C->AJAX调用A（1次），B页面，显示进度
问题,
1、为什么调用C执行A,B后,进度显示不出来,要执行完了后才显示全不进度
2、为什么执行A时，几乎同时执行B，要等到A的文件发送完了后才显示
代码

A- >
<?php
session_start();
if(!defined('BASE_URL'))die('Hacking Attmpt!');
set_time_limit(600);
$width = 652;
$total = 1000;
$pix = $width / $total;
$progress = 10;
//echo '<meta http-equiv="Content-Type" c />';

   $data = array(
      'host' => '127.0.0.1',
      'user' => 'bizman',
      'pass' => 'jacson',
      'port'=>21
      );

$script = <<<eot
<script language="JavaScript">
updateProgress("Begain connect ftp server....", 1);
</script>
eot;
$_SESSION['sent'] = $script."\n";

if(FALSE===($ftp = new Ostenia_File_Remote_Ftp($data))){
$script = <<<eot
<script language="JavaScript">
updateProgress("Can not connect ftp server....", 1);
</script>
eot;
$_SESSION['sent'] = $script."\n";exit;
}
try{
      $ftppath = '/ajaxtest/';//要创建的目录
      $path = ROOT_PATH.'data/wp/wp_extract_data/wp/2.3.2wordpress-2.3.2/wordpress/';
         $source = ftp_array($path);
$tt = count($source);
         foreach ($source as $item) {
            $fp = array(
                  'path'=>$item['path'],
                  'realname'=>$item['realname'],
            );
      $f = $fp['path'].$fp['realname'];//得到FTP路径
            $e = explode("$path",$f);
            $e = array_pop($e);#转义路径
            $clientftp = $ftppath;//client ftp path
            $realyftppath = $clientftp.$e; //FTP上传后的文件名
            $e = basename($f);// 获得文件名
            $ftp->upload($fp, $realyftppath);//sent file to severs
            $pix = $width/$tt;
   $progress += $pix;
$length = min($width, intval($progress));
$script = <<<eot
<script language="JavaScript">
updateProgress("Senting $e ,please waiting....", $length);
</script>
eot;
            $_SESSION['sent']= $script."\n";
///是不是这地方写的问题
}#end foreach
//print_r($_SESSION['sent']);
}catch (Ostenia_File_Protocol_Exception $e) {
$pix = $width/$tt;
$progress += $pix;
$length = min($width, intval($progress));
$script = <<<eot
<script language="JavaScript">
updateProgress("system error", $length);
</script>
eot;
exit;
}
$ftp->close();//关闭FTP
               $pix = $width/$tt;
      $progress += $pix;
$length = min($width, intval($progress));
$script = <<<eot
<script language="JavaScript">
updateProgress("Finished sent all the files.", $width);
</script>
eot;
            $_SESSION['sent'] = $script."\n";
?>

B
  if((isset($_SESSION))&&(!empty($_SESSION))){
header("Content-type: text/html; charset=utf-8");
//header('Content-type: text/javascript');
print_r($_SESSION['sent']);
session_unset('sent');
  }else{
header("Status: 404 Not Found");
exit;
  }

C-》

<?php
$width = 652;
$total = 1000;
$pix = $width / $total;
$progress = 10;
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
      <meta http-equiv="Content-Type" c />
      <title>Javascript Progress Bar Demo - Gracecode.com</title>
      <script type="text/javascript" src="/js/jquery.js"></script>
      <script type="text/javascript">
function loadpage(){
$.get("/load.php?p=sent");
alert('LOAD Page is ok');
}
function loadsession(Progress){
if(Progress){
   $("#show").load("/load.php?p=load");
}
}
         var i = 0;
         function doProgress() {
            if (i > 10) {
                  alert("Progress Bar Finished!");
                  return;
            }
            if (i <= 10) {
   setTimeout("doProgress()", 500);
                  loadsession(i);
                  i++;
            }
         }
$(document).ready(function() {
   loadpage();
doProgress();
         });
      </script>
   <script language="JavaScript">

</script>
</head>
<body>
</head>
<body>
<div style="margin:4px 4px 0px 20px;  padding: 8px; color:#FF0000; font-size:13px; font-weight:bold;border: 1px solid gray; margin-left:14px;background: #EAEAEA; width: <?php echo $width+8; ?>px">
<div style="text-align:center"><font color="#FF0000">发送文件中...</font></div>
<div style="padding: 0; background-color: white; border: 1px solid navy; width: <?php echo $width; ?>px">
   <div id="progress" style="padding: 0; background-color: #FFCC66; border: 0; width: 0px; text-align: center;  height: 16px"></div>
</div>
<div id="status"> </div>
<div id="percent" style="position: relative; top: -30px; text-align: center; font-weight: bold; font-size: 8pt">0%</div>
</div>
<div id ="show"></div>
</body>
</html>

[ 本帖最后由 bizman 于 2008-5-5 16:58 编辑 ]

bizman · 发表于 2008-5-6 09:05:14

没人看,这也太...
算了,偶自己解决

bizman · 发表于 2008-5-7 14:21:38

偶自己解决了
偶放在BLOG上去了
谁愿看就去看吧
直接运行是运行不起的
http://v2.getroad.cn/blog/?action=show&id=423&page=1
原理也是那样
边写边读
只是方式不一样
过去是写到session里去的
现在是直接创建一个文件
然后间隔5秒或者更少去调用

有意的可以去看看

Hex · 发表于 2008-5-7 15:04:44

我顶～～～佩服楼主的钻研精神！！

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