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JavaScript - How To Upload A File And Read It
hi
i m creating a webpage using javascript and php where i need to upload a doc file or zip and read all the words in doc file if it is zip i need to read all the words in all the doc files. i m trying to upload using file input but it does not show path of file only file name how i m suppose to upload and read it. Similar Tutorialshi, i have looked all over the internet but i can't find anything that works. All i want to do is simply read from a text file. Thanks Ok, I am currently working on an announcements portlet for a dashboard that my team is creating. What is desired is to be able to have this portlet access a stored text file (file can be edited so content is subject to change) that will have all the information needed for these announcements. The JavaScript will then write it into a html file. I am a novice at html, and javascript; and i was hoping that if anyone had any advice, ideas, or a helpful link that could point me in the right direction I would much appreciate it. I use a PHP page to set elements of a text file on our web server and I want to create a javascript function to intermitently check the contents of that file and if an element in that file matches a criteria I want to act on it... So, I do this <script type="text/javascript"> t = setInterval("CHECKFILE()",5000); </script> This calls the CHECKFILE function every 5000ms <script type="text/javascript"> function CHECKFILE(){ } </script> How, in the CHECKFILE function can I read from a file called FILE.txt for example?? In PHP I can use $myFile = "FILE.txt"; $theData = file($myFile); And this gives me an array, with each element containing one line from the file Can I do similar in Javascript? Or can I add PHP into the JS to do it for me? Thanks for some reason I am unable to read the file contents, or it could be something else, I added in some extra code to see where the script got to and I only get to see '1' on the output. Is there something else I have missed ? I am wanting to ready each line one by one and replace a phrase with another, then output the new line. I visit the 1.txt file in my browser and the file shows fine. var txtFile = new XMLHttpRequest(); txtFile.open("GET", "http://mysite.com/convertJS/1.txt", true); txtFile.onreadystatechange = function() { document.write("1<br>"); if (txtFile.readyState === 4) { // document is ready to parse. document.write("2<br>"); if (txtFile.status === 200) { // file is found document.write("3<br>"); allText = txtFile.responseText; lines = txtFile.responseText.split("\n"); document.write(lines + "<br>"); // I shall be altering the text in each line, search and replace, so only need to be able to read one line at a time. } } } txtFile.send(null); // close file. sorry that i used the quote method to post, but when i used [ code ] it corupted the text as the document . write lines?! Hi, i need to read a files contents to an array so that i can check which lines of the file i need to write back. im not very good with arrays and haven't had any luck so far. thanks I am wanting to setup a dependant drop down where when a user clicks on the first drop down, it changes the contents of the second. The way I intend to do this is via a csv file. I have found several scripts but I have been unable to get them to work. Two of which a http://answers.yahoo.com/question/in...3114347AA7GYJ7 http://purbayubudi.wordpress.com/200...ng-javascript/ The first is the better option from what I can see. but the problem is readyState seems to be always 1. I am wondering if someone could perhaps give me a few moments to see if I can get this to work or suggest a better solution. I don't want to use a database approach, at least not yet. I am having trouble with JavaScript code and do not know why it is not working. I have the code I think is right but it is not showing up in my browser when run. Any ideas? Also are there any other ways to read in an xml file using javascript? please list if so. Hi guys, here again with another question. I would parse a file, my js read fine an html file, but this one is an export from msword. I don't know if this is the problem. I can't change the file. here is how my js read: Code: <body>
<input type='button' value='Load' onclick="doLoad()" />
<script type='text/javascript'>
/* THIS IS THE FILE TO READ */
var fileToRead="test.html";
/* THIS FUNCTION IS TO READ THE HTML FILE */
function IO(U) {//LA MOD String Version. A tiny ajax library. by, DanDavis
var X = !window.XMLHttpRequest ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest();
X.open('GET', U, false );
X.setRequestHeader('Content-Type', 'text/html')
X.send('');
return X.responseXML;}
function doLoad(){
/* HERE IS THE CALL TO READ THE FILE */
var orari=(IO(fileToRead));
var arrTR=orari.getElementsByTagName('tr');
var arrTD_3nd_line=arrTR[1].getElementsByTagName('td');
var arr_p_1c_3l=arrTD_3nd_line[0].getElementsByTagName('p');
alert(arr_p_1c_3l[0].nodeValue);
}
</script>
and here is a snip of the html i read: Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="ProgId" content="Word.Document">
<meta name="Generator" content="Microsoft Word 10">
<meta name="Originator" content="Microsoft Word 10">
<link rel="File-List" href="orarioinvernale_file/filelist.xml">
<title>ORARI </title>
<!--[if gte mso 9]><xml>
<o:DocumentProperties>
<o:Author>Ufficio Stampa</o:Author>
<o:Template>Normal</o:Template>
<o:LastAuthor>Ufficio Stampa</o:LastAuthor>
<o:Revision>4</o:Revision>
<o:TotalTime>1</o:TotalTime>
<o:Created>2005-11-28T12:25:00Z</o:Created>
<o:LastSaved>2006-01-13T10:24:00Z</o:LastSaved>
<o:Pages>1</o:Pages>
<o:Words>762</o:Words>
<o:Characters>4344</o:Characters>
<o:Company>mycomp</o:Company>
<o:Lines>36</o:Lines>
<o:Paragraphs>10</o:Paragraphs>
<o:CharactersWithSpaces>5096</o:CharactersWithSpaces>
<o:Version>10.2625</o:Version>
</o:DocumentProperties>
</xml><![endif]--><!--[if gte mso 9]><xml>
<w:WordDocument>
<w:SpellingState>Clean</w:SpellingState>
<w:GrammarState>Clean</w:GrammarState>
<w:HyphenationZone>14</w:HyphenationZone>
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
</w:WordDocument>
</xml><![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Comic Sans MS";
panose-1:3 15 7 2 3 3 2 2 2 4;
mso-font-charset:0;
mso-generic-font-family:script;
mso-font-pitch:variable;
mso-font-signatu 647 0 0 0 159 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";}
p
{mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";}
span.SpellE
{mso-style-name:"";
mso-spl-e:yes;}
span.GramE
{mso-style-name:"";
mso-gram-e:yes;}
@page Section1
{size:595.3pt 841.9pt;
margin:70.85pt 2.0cm 2.0cm 2.0cm;
mso-header-margin:35.4pt;
mso-footer-margin:35.4pt;
mso-paper-source:0;}
div.Section1
{page:Section1;}
-->
</style><!--[if gte mso 10]>
<style>
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Tabella normale";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";}
</style>
<![endif]-->
<meta http-equiv="Content-Language" content="it">
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="4098"/>
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1"/>
</o:shapelayout></xml><![endif]-->
</head>
<body style="" bgcolor="#ccffff" lang="IT">
<div class="Section1">
<div style="text-align: center;">
</div>
<table class="MsoNormalTable" style="width: 100%;" border="1" cellpadding="0" height="1733" width="100%">
<tbody>
<tr style="height: 75.75pt;">
.... and so on.... the problem is that my error console (from firefox) when i click my read button (not when i load the page) gives me errors: Code: sintax error: source: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> if i comment this it give me: Code: missing tag </meta>
source:
</head>
and if i put Code: </meta> another meta is required and so on. But i can't modify the source i read, so is there a way to read this file? Many thanks Backit Hi, i have a question, is JavaScript can read an external file? i have an ear file, can it read external file without the external file compile together in the ear file? can we do so? I'm hoping someone can help me out on this. I know that the input "file" type can't be customized very well using css, so I figured I might try to make my own with javascript. The only problem is, I don't know too much about javascript. So can someone please point me in the right direction on how to make my own custom file upload box in javascript that works the same way as the default one works (so I don't have to edit my PHP coding). Thank you so much! Also, heres something I'd like to achieve: The box I'd like to create is at the top, while the default one is at the bottom. Hello every one never really used a board for something like this but my java is a little limited so i need some help here if possible! I have a page with 5 file inputs and 5 img tags i have everything working but preview of course changes all the img tags so no madder what browse button i choose all fixed img tags are updated with that preview. here is a code i found and messed with a little cant seem to figure out how to add a loop or something to update just the called tag if any one could help Java Script: <script type="text/javascript"> <!-- Begin /***** CUSTOMIZE THESE VARIABLES *****/ // width to resize large images to var maxWidth=115; // height to resize large images to var maxHeight=115; // valid file types var fileTypes=["bmp","gif","png","jpg","jpeg"]; // the id of the preview image tag var outImage="previewField"; // what to display when the image is not valid var defaultPic="/images/evolve/badpic.jpg"; /***** DO NOT EDIT BELOW *****/ function preview(what){ var source=what.value; var ext=source.substring(source.lastIndexOf(".")+1,sou rce.length).toLowerCase(); for (var i=0; i<fileTypes.length; i++){ if (fileTypes[i]==ext){ break; } } globalPic=new Image(); if (i<fileTypes.length){ //FireFox try{ globalPic.src=what.files[0].getAsDataURL(); }catch(err){ globalPic.src=source; } }else { globalPic.src=defaultPic; alert(fileTypes.join(", ")); } setTimeout("applyChanges()",200); } var globalPic; function applyChanges(){ var field=document.getElementById(outImage); var x=parseInt(globalPic.width); var y=parseInt(globalPic.height); if (x>maxWidth) { y*=maxWidth/x; x=maxWidth; } if (y>maxHeight) { x*=maxHeight/y; y=maxHeight; } field.style.display=(x<1 || y<1)?"none":""; field.src=globalPic.src; field.width=x; field.height=y; } // End --> previewField is the key i think and also of course the imageout jsut dont know how to go about making the loop if this was perl no problem but like stated above i know little about java coding but minor changes. below here is the some of the form code: <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td scope="col"> <img alt="Graphic will preview here" id="previewField" src="/images/evolve/addpic.jpg" width="115" height="115"><br /> <label class="cabinet"><input type="file" name="images[]" id="picField" onchange="preview(this)" class="file"></label> </td> <td scope="col"> <img alt="Graphic will preview here" id="previewField" src="/images/evolve/addpic.jpg" width="115" height="115"><br /> <label class="cabinet"><input type="file" name="images[]" id="picField" onchange="preview(this)" class="file"></label> </td> <td scope="col"> <img alt="Graphic will preview here" id="previewField" src="/images/evolve/addpic.jpg" width="115" height="115"><br /> <label class="cabinet"><input type="file" name="images[]" id="picField" onchange="preview(this)" class="file"></label> </td> <td scope="col"> <img alt="Graphic will preview here" id="previewField" src="/images/evolve/addpic.jpg" width="115" height="115"><br /> <label class="cabinet"><input type="file" name="images[]" id="picField" onchange="preview(this)" class="file"></label> </td> <td scope="col"> <img alt="Graphic will preview here" id="previewField" src="/images/evolve/addpic.jpg" width="115" height="115"><br /> <label class="cabinet"><input type="file" name="images[]" id="picField" onchange="preview(this)" class="file"></label> </td> </tr> </table> also ther is one include: <script type="text/javascript" src="/java/si.files.js"></script> i went through this code file and the change does not appear to be where the change should ocur im sure its in the actually script need to loop through the images[] field i would think like i would in php The only thing i could think to do is paste the script code 5 more times and change each variable to 1 2 3 4 5 but then ill have a big php code page there would be a way to make this work i would think Thanks all and im here for PHP or Perl questions so any help would be great! If there is a better approach any input would be great! Hi there, I would like to know how I can show the line "Attach another File" right away, instead of what is depicted in my own code of showing it after a file has been attached. Also, I would like to align "Attach another File" to the right, so that the word "file" will be below the Browse button. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Untitled Page</title>
<script language="javascript" type="text/javascript">
var upload_number;
function addFileInput()
{
var d = document.createElement("div");
var file = document.createElement("input");
file.setAttribute("type", "file");
file.setAttribute("name", "attachment"+upload_number);
d.appendChild(file);
document.getElementById("moreUploads").appendChild(d);
upload_number++;
}
</script>
</head>
<body>
<input type="file" name="attachment" id="attachment" onchange="document.getElementById('moreUploadsLink').style.display = 'block';" />
<div id="moreUploads"></div>
<div id="moreUploadsLink" style="display:none;"><a href="javascript:addFileInput();">Attach another File</a></div>
</body>
</html>
Hi there, I have a File Upload tool and would like to prevent the users from clicking on the textbox to upload files. Also, I want to disallow the manual entering of file pathname. How should I edit it? I would need to use Javascript. <input type="file" name="attachment" id="attachment" style="width:300px" /> I'm attempting to pull the hidden iframe file upload trick using javascript. I've go my form file upload and iframe fine, but I can't figure out what to do when it gets server side. There seems to be relatively no documentation on how to handle uploaded files in server-side javascript. Ideas? I'm at a loss.
Hi everybody, I have this File Upload control, whereby the user is granted a limit of 5 uploads. And so, the user clicks on "Attach Another File", and decides to attach a file ONLY in the first File Upload control. My problem is, I want the user to be able to click on an "X" beside every File Upload control, so that it will close those unnecessary (or unused) FIle Upload controls. How do I edit my code in JAVASCRIPT? Please advise. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script language="javascript" type="text/javascript">
var fileCount = 1;
function addOneFile()
{
++fileCount;
var div = document.getElementById("showFile"+fileCount);
if ( div != null ) div.style.display = "block";
}
</script>
<style type ="text/css">
.style37
{
color: Black;
margin-left: 99px;
}
</style>
</head>
<body>
<table cellpadding="5">
<tr>
<td style="vertical-align: top">
Attachment:
</td>
<td>
<input type="file" name="attachment" id="attachment" style="width:230px" />
<div id="showFile2" style="display: none;">
<input name="file2" type="file" />
</div>
<div id="showFile3" style="display: none;">
<input name="file3" type="file" />
</div>
<div id="showFile4" style="display: none;">
<input name="file4" type="file" />
</div>
<div id="showFile5" style="display: none;">
<input name="file5" type="file" />
</div>
<br />
<a href="javascript:addOneFile();" class="style37">Attach another File</a>
<br />
(Restricted to 5 uploads)
</td>
</tr>
</table>
</body>
</html>
i have a html/php form which let users upload pictures onto my server. the problem with it is, it says the picture has been uploaded but if the file name contains any of character apart from text (A-z) and numbers, the picture never shows up in the admin panel. is there a way using ajax or jquery to disallow certain file names in the upload field of the html which uses these characters !@#$%^'&*()"? how do i go on about this? hi, i am using <input type = "file" id = "upload"> in my html page. i want to disable the textbox of this control so that user cannot type any file location here. user can upload file only through browse button. is there a way to disable this textbox thru javascript? thnx Hey there everyone I'm a bit new to javascript and having a bit of a problem. I have a page users can click to upload a photo. When users click I want a modal window to pop up with a simple file upload input inside it and a submit button. I have this working except that when users click submit nothing happens. I'm using nyroModal http://nyromodal.nyrodev.com/#demos and the code I use is: Code: <a href="#test" class="nyroModal"><img src="/img/uploadimage.gif" alt="" /></a> <div id="test" style="display: none; width: 600px;"> <form id="ImageUploadForm" enctype="multipart/form-data" method="post" action="images/upload" accept-charset="utf-8"> <div style="display:none;"> <input type="hidden" name="_method" value="POST" /> </div> <div class="input file"> <label for="ImageFileName">File Name</label> <input type="file" name="data[Image][fileName]" id="ImageFileName" /> </div> <div class="submit"><input type="submit" value="Upload" /> </div> </form> </div> If I take the code out of the div=id"test" the form appears on the normal page and submits just fine. Inside the test div tho the modal window pops up with the form inside but the submit button does nothing. Can anyone enlighten me what I'm doing wrong? I am trying for a javascript code that would ask for the excel file location when run, fetch data from two columns till eof in an excel file (MS Excel 2010), append it to an existing text file and upload the plain text file to an ftp location. The ftp username, password and location needs to be hard coded in the script. Is this possible? I'm not sure why this code executes the first if condition. What should I be doing instead? <!DOCTYPE html> <head> <style> #test { visibility:hidden; } </style> <script type="text/javascript"> function read(ID) { if(document.getElementById(ID).style.visibility == '') alert("why does this pop up?"); else if(document.getElementById(ID).style.visibility == 'hidden') alert("this is what I would expect"); else alert("never reached"); } </script> </head> <body> <form><input type="button" value="test" onclick="read('test');""> <p id='test'> testing visibility</p> </body> </html> |
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