通过在VIOS上 复制lV的方式快速起虚机

原站连接

PHP and AJAX Image Upload

 

现在的ajax上传，都是用iframe做过渡的。实现的方式是：

 

1.js 生成或者页面中插入隐藏的iframe元素。

<iframe id='upiframe' name='upiframe' onload='getHtml()'></iframe>

 

2.提交的表单放到生成的iframe页面里面，

提交目标 target = 'upiframe'  ，

 

3.监听iframe的onload事件，获取docuemnt ,及上传后返回的信息。

 

下面是代码，看起来不是很多，用起来也很方便

 

function $m(theVar){
return document.getElementById(theVar)
}
function remove(theVar){
var theParent = theVar.parentNode;
theParent.removeChild(theVar);
}
function addEvent(obj, evType, fn){
if(obj.addEventListener)
obj.addEventListener(evType, fn, true)
if(obj.attachEvent)
obj.attachEvent("on"+evType, fn)
}
function removeEvent(obj, type, fn){
if(obj.detachEvent){
obj.detachEvent('on'+type, fn);
}else{
obj.removeEventListener(type, fn, false);
}
}
function isWebKit(){
return RegExp(" AppleWebKit/").test(navigator.userAgent);
}
function ajaxUpload(form,url_action,id_element,html_show_loading,html_error_http){
var detectWebKit = isWebKit();
form = typeof(form)=="string"?$m(form):form;
var erro="";
if(form==null || typeof(form)=="undefined"){
erro += "The form of 1st parameter does not exists.\n";
}else if(form.nodeName.toLowerCase()!="form"){
erro += "The form of 1st parameter its not a form.\n";
}
if($m(id_element)==null){
erro += "The element of 3rd parameter does not exists.\n";
}
if(erro.length>0){
alert("Error in call ajaxUpload:\n" + erro);
return;
}
var iframe = document.createElement("iframe");
iframe.setAttribute("id","ajax-temp");
iframe.setAttribute("name","ajax-temp");
iframe.setAttribute("width","0");
iframe.setAttribute("height","0");
iframe.setAttribute("border","0");
iframe.setAttribute("style","width: 0; height: 0; border: none;");
form.parentNode.appendChild(iframe);
window.frames['ajax-temp'].name="ajax-temp";
var doUpload = function(){
removeEvent($m('ajax-temp'),"load", doUpload);
var cross = "javascript: ";
cross += "window.parent.$m('"+id_element+"').innerHTML = document.body.innerHTML; void(0);";
$m(id_element).innerHTML = html_error_http;
$m('ajax-temp').src = cross;
if(detectWebKit){
remove($m('ajax-temp'));
}else{
setTimeout(function(){ remove($m('ajax-temp'))}, 250);
}
}
addEvent($m('ajax-temp'),"load", doUpload);
form.setAttribute("target","ajax-temp");
form.setAttribute("action",url_action);
form.setAttribute("method","post");
form.setAttribute("enctype","multipart/form-data");
form.setAttribute("encoding","multipart/form-data");
if(html_show_loading.length > 0){
$m(id_element).innerHTML = html_show_loading;
}
form.submit();
}

 
html中的设置

 

 

<!--
VERY IMPORTANT! Update the form elements below ajaxUpload fields:
1. form - the form to submit or the ID of a form (ex. this.form or standard_use)
2. url_action - url to submit the form. like 'action' parameter of forms.
3. id_element - element that will receive return of upload.
4. html_show_loading - Text (or image) that will be show while loading
5. html_error_http - Text (or image) that will be show if HTTP error.

VARIABLE PASSED BY THE FORM:
maximum allowed file size in bytes:
maxSize		= 9999999999

maximum image width in pixels:
maxW			= 200

maximum image height in pixels:
maxH			= 300

the full path to the image upload folder:
fullPath		= http://www.atwebresults.com/php_ajax_image_upload/uploads/ 
the relative path from scripts/ajaxupload.php -> uploads/ folder
relPath		= ../uploads/

The next 3 are for cunstom matte color of transparent images (gif,png), use RGB value
colorR		= 255
colorG		= 255
colorB		= 255

The form name of the file upload script
filename		= filename
-->
<form action="scripts/ajaxupload.php" method="post" name="standard_use" id="standard_use" enctype="multipart/form-data">
<p><input type="file" name="filename" /></p>
<button onclick="ajaxUpload(this.form,'scripts/ajaxupload.php?filename=filename&maxSize=9999999999&maxW=200&fullPath=http://www.atwebresults.com/php_ajax_image_upload/uploads/&relPath=../uploads/&colorR=255&colorG=255&colorB=255&maxH=300','upload_area','File Uploading Please Wait...<br /><img src=\'images/loader_light_blue.gif\' width=\'128\' height=\'15\' border=\'0\' />','<img src=\'images/error.gif\' width=\'16\' height=\'16\' border=\'0\' /> Error in Upload, check settings and path info in source code.'); return false;">Upload Image</button>
</form>