我一直在努力寻找一个简单的教程,展示如何在我的文件上传中添加进度百分比的基础知识,我已经构建了我的文件上传部分,所以我不想要同时附带的插件,我我希望能够自己编写进度条代码,但我需要一些帮助来解决这个问题。我想了解它是如何工作的,我不仅仅想要一些能为我完成这一切的插件。
非常感谢任何帮助,谢谢!
我只对如何获取文件上传的百分比感兴趣,而不是真正在进度条本身上。我希望能够有一个准确的百分比。
答案 0 :(得分:15)
看这里:
http://jquery.malsup.com/form/progress.html
试试这个: -
这是我的HTML代码
<!doctype html>
<head>
<title>File Upload Progress Demo #1</title>
<style>
body { padding: 30px }
form { display: block; margin: 20px auto; background: #eee; border-radius: 10px; padding: 15px }
.progress { position:relative; width:400px; border: 1px solid #ddd; padding: 1px; border-radius: 3px; }
.bar { background-color: #B4F5B4; width:0%; height:20px; border-radius: 3px; }
.percent { position:absolute; display:inline-block; top:3px; left:48%; }
</style>
</head>
<body>
<h1>File Upload Progress Demo #1</h1>
<code><input type="file" name="myfile"></code>
<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="file" name="uploadedfile"><br>
<input type="submit" value="Upload File to Server">
</form>
<div class="progress">
<div class="bar"></div >
<div class="percent">0%</div >
</div>
<div id="status"></div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.js"></script>
<script src="http://malsup.github.com/jquery.form.js"></script>
<script>
(function() {
var bar = $('.bar');
var percent = $('.percent');
var status = $('#status');
$('form').ajaxForm({
beforeSend: function() {
status.empty();
var percentVal = '0%';
bar.width(percentVal)
percent.html(percentVal);
},
uploadProgress: function(event, position, total, percentComplete) {
var percentVal = percentComplete + '%';
bar.width(percentVal)
percent.html(percentVal);
},
complete: function(xhr) {
bar.width("100%");
percent.html("100%");
status.html(xhr.responseText);
}
});
})();
</script>
</body>
</html>
我的PHP代码
<?php
$target_path = "uploads/";
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['uploadedfile']['name']).
" has been uploaded";
} else{
echo "There was an error uploading the file, please try again!";
}
?>
答案 1 :(得分:3)
请看一下,我想你会发现这个有用。它是jQuery,它有进度百分比,就像你想要的上传脚本一样!
如果你想学习更复杂的例子,我会推荐可靠的脚本,例如Uber Uploader - 它是jQuery和PHP。