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swfupload 批量上传源码

程序员文章站 2022-06-01 16:18:17
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1. [代码][PHP]代码 

//首先  准备 swfupload 包
//前端用户体验页面
<!DOCTYPE html>
<html>
<head>
<title>SWFUpload Demos - Application Demo</title>
<link href="./default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="./swfupload/swfupload.js"></script>
<script type="text/javascript" src="./swfupload/jquery-1.4.js"></script>
<script type="text/javascript" src="js/handlers.js"></script>
<script type="text/javascript">
$(function(){
$('#btn').bind('click',path);

});

function path()
{
 var url='';
$('#thumbnails img').each(function(){
url=$(this).attr('id')+'{#@T@#}'+url;
})
 alert(url);
}

  var swfu;
  window.onload = function () {
   swfu = new SWFUpload({
    // Backend Settings
    upload_url: "upload.php",
    post_params: {"PHPSESSID": "<?php echo session_id(); ?>"},

    // File Upload Settings
    file_size_limit : "800", // 2MB 最大容量限制
    file_types : "*.jpg",
    file_types_description : "JPG Images",
    file_upload_limit : 5,//上传数量限制

    // Event Handler Settings - these functions as defined in Handlers.js
    //  The handlers are not part of SWFUpload but are part of my website and control how
    //  my website reacts to the SWFUpload events.
    swfupload_preload_handler : preLoad,
    swfupload_load_failed_handler : loadFailed,
    file_queue_error_handler : fileQueueError,
    file_dialog_complete_handler : fileDialogComplete,
    upload_progress_handler : uploadProgress,
    upload_error_handler : uploadError,
    upload_success_handler : uploadSuccess,
    upload_complete_handler : uploadComplete,

    // Button Settings
    button_image_url : "images/SmallSpyGlassWithTransperancy_17x18.png",
    button_placeholder_id : "spanButtonPlaceholder",
    button_width: 200,
    button_height: 18,
    button_text : '<span class="button">Select Images <span class="buttonSmall">(800 k Max)[*.jpeg]</span></span>',
    button_text_style : '.button { font-family: Helvetica, Arial, sans-serif; font-size: 12pt; } .buttonSmall { font-size: 10pt; }',
    button_text_top_padding: 0,
    button_text_left_padding: 18,
    button_window_mode: SWFUpload.WINDOW_MODE.TRANSPARENT,
    button_cursor: SWFUpload.CURSOR.HAND,
    
    // Flash Settings
    flash_url : "./swfupload/swfupload.swf",
    flash9_url : "./swfupload/swfupload_FP9.swf",

    custom_settings : {
     upload_target : "pFileProgressContainer"
    },
    
    // Debug Settings
    debug: false
   });
  };
 </script>
</head>
<body>
<h2>最多上传5张图片<h2>
 <form>
  <p style="width: 200px; height: 18px; border: solid 1px #7FAAFF; background-color: #C5D9FF; padding: 2px;">
   <span id="spanButtonPlaceholder"></span>
  </p>
 </form>
 <p id="pFileProgressContainer" style="height: 75px;"></p>
 <p id="thumbnails" style='width:500px;border:1px solid lime;padding-left:20px'></p>
</p>
<button id='btn'>提交</button>
</body>
</html>

//后台处理页面 upload.php
<?php
  
 if (isset($_POST["PHPSESSID"])) {
  session_id($_POST["PHPSESSID"]);
 }

 session_start();
 ini_set("html_errors", "0");

 // Check the upload
 if (!isset($_FILES["Filedata"]) || !is_uploaded_file($_FILES["Filedata"]["tmp_name"]) || $_FILES["Filedata"]["error"] != 0) {
  echo "ERROR:invalid upload";
  exit(0);
 }

 // Get the image and create a thumbnail
 $img = imagecreatefromjpeg($_FILES["Filedata"]["tmp_name"]);
 if (!$img) {
  echo "ERROR:could not create image handle ". $_FILES["Filedata"]["tmp_name"];
  exit(0);
 }

 $width = imageSX($img);
 $height = imageSY($img);

 if (!$width || !$height) {
  echo "ERROR:Invalid width or height";
  exit(0);
 }

 // Build the thumbnail
 $target_width = 100;
 $target_height = 100;
 $target_ratio = $target_width / $target_height;

 $img_ratio = $width / $height;

 if ($target_ratio > $img_ratio) {
  $new_height = $target_height;
  $new_width = $img_ratio * $target_height;
 } else {
  $new_height = $target_width / $img_ratio;
  $new_width = $target_width;
 }

 if ($new_height > $target_height) {
  $new_height = $target_height;
 }
 if ($new_width > $target_width) {
  $new_height = $target_width;
 }

 $new_img = ImageCreateTrueColor(100, 100);
 if (!@imagefilledrectangle($new_img, 0, 0, $target_width-1, $target_height-1, 0)) { // Fill the image black
  echo "ERROR:Could not fill new image";
  exit(0);
 }

 if (!@imagecopyresampled($new_img, $img, ($target_width-$new_width)/2, ($target_height-$new_height)/2, 0, 0, $new_width, $new_height, $width, $height)) {
  echo "ERROR:Could not resize image";
  exit(0);
 }

 if (!isset($_SESSION["file_info"])) {
  $_SESSION["file_info"] = array();
 }

 // Use a output buffering to load the image into a variable
 ob_start();
 imagejpeg($new_img);
 $imagevariable = ob_get_contents();
 ob_end_clean();
 $file_id = md5($_FILES["Filedata"]["tmp_name"] + rand()*100000);
 $_SESSION["file_info"][$file_id] = $imagevariable;
 //上传图片处理

if(!is_dir("uploadimage"))
{
   mkdir("uploadimage");
}
$pre_fix=md5('120ask120');
  move_uploaded_file($_FILES["Filedata"]["tmp_name"],trim("./uploadimage/".$pre_fix.$file_id.".jpg"));
/*图片处理结束*/  
 echo "FILEID:" . $file_id; // Return the file id to the script
 
?>
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