Php 显示文件上载进度栏,而不单击“提交”按钮
我正在尝试编写一个文件上传过程的代码。当我单击“浏览”按钮时,文件将上载到服务器上并显示文件内容,而不单击“提交”按钮。当我上传大文件时,上传会花费更多的时间,所以我需要实现一个progressbar 我提到了以下有用的链接: 我希望在单击浏览按钮时自动显示进度条。我不知道如何调用进度条函数,当我在浏览窗口中选择文件时,没有单击提交按钮 我使用了以下代码 文件:index.phpPhp 显示文件上载进度栏,而不单击“提交”按钮,php,javascript,ajax,jquery,Php,Javascript,Ajax,Jquery,我正在尝试编写一个文件上传过程的代码。当我单击“浏览”按钮时,文件将上载到服务器上并显示文件内容,而不单击“提交”按钮。当我上传大文件时,上传会花费更多的时间,所以我需要实现一个progressbar 我提到了以下有用的链接: 我希望在单击浏览按钮时自动显示进度条。我不知道如何调用进度条函数,当我在浏览窗口中选择文件时,没有单击提交按钮 我使用了以下代码 文件:index.php <!doctype html> <head>
<!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>
<form action="upload.php" method="post" enctype="multipart/form-data" id="hello">
<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="jquery.js"></script>
<script src="jquery.form.js"></script>
<script>
(function() {
var bar = $('.bar');
var percent = $('.percent');
var status = $('#status');
$('#hello').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>
<?php
$target_path = "upload/";
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['uploadedfile']['name']).
" has been uploaded";
} else{
echo "There was an error uploading the file, please try again!";
}
?>
文件上载进度演示#1
正文{padding:30px}
窗体{显示:块;边距:20px自动;背景:#eee;边框半径:10px;填充:15px}
.progress{位置:相对;宽度:400px;边框:1px实心#ddd;填充:1px;边框半径:3px;}
.bar{背景色:B4F5B4;宽度:0%;高度:20px;边框半径:3px;}
.percent{位置:绝对;显示:内联块;顶部:3px;左侧:48%;}
0%
(功能(){
var bar=$('.bar');
变量百分比=$('.percent');
变量状态=$(“#状态”);
$('#你好').ajaxForm({
beforeSend:function(){
status.empty();
var percentVal='0%';
条形宽度(百分比值)
html(percentVal);
},
上载进度:功能(事件、位置、总数、完成百分比){
var percentVal=percentComplete+“%”;
条形宽度(百分比值)
html(percentVal);
},
完成:函数(xhr){
条形宽度(“100%”);
html(“100%”);
html(xhr.responseText);
}
});
})();
文件:upload.php
<!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>
<form action="upload.php" method="post" enctype="multipart/form-data" id="hello">
<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="jquery.js"></script>
<script src="jquery.form.js"></script>
<script>
(function() {
var bar = $('.bar');
var percent = $('.percent');
var status = $('#status');
$('#hello').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>
<?php
$target_path = "upload/";
$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!";
}
?>
您正在使用的jQuery插件似乎不支持您想要的行为。这就给您留下了两个选择:
- 破解插件,选择文件后立即开始上传
- 例如,用户可以选择一种上传方式,使您能够更好地控制上传控制