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javascript将当前url作为参数而不是来自文本框的数据传递

转载 作者:行者123 更新时间:2023-11-30 13:30:16 24 4
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我需要传递当前 javascript 所在的 url,而不是使用文本框中的 url。目前我有文本框和一个按钮,我从文本框中获取 url,然后在 javascript 中使用它。我只想按下按钮和脚本来自动获取代码所在的页面。例如,如果我在 www.mypage.com 上有代码,我希望在单击按钮时 javascript 自动获取 url 并使用它。这是我使用的完整代码:

<!DOCTYPE html>
<html>
<head>
<title></title>


<script type="text/javascript" src="External/base64.js"></script>
<script type="text/javascript" src="External/canvas2image.js"></script>
<script type="text/javascript" src="External/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="build/html2canvas.js?221"></script>
<script type="text/javascript" src="build/jquery.plugin.html2canvas.js"></script>
<script type="text/javascript" src="http://www.hertzen.com/js/ganalytics-heatmap.js"></script>
<script type="text/javascript">

var date = new Date();
var message,
timeoutTimer,
timer;

var proxyUrl = "http://html2canvas.appspot.com";

function addRow(table, field, val) {
var tr = $('<tr />').appendTo($(table));

tr.append($('<td />').css('font-weight', 'bold').text(field)).append($('<td />').text(val));



}

function throwMessage(msg, duration) {

window.clearTimeout(timeoutTimer);
timeoutTimer = window.setTimeout(function () {
message.fadeOut(function () {
message.remove();
});
}, duration || 2000);
$(message).remove();
message = $('<div />').html(msg).css({
margin: 0,
padding: 10,
background: "#000",
opacity: 0.7,
position: "fixed",
top: 10,
right: 10,
fontFamily: 'Tahoma',
color: '#fff',
fontSize: 12,
borderRadius: 12,
width: 'auto',
height: 'auto',
textAlign: 'center',
textDecoration: 'none'
}).hide().fadeIn().appendTo('body');
}

$(function () {

$('ul li a').click(function (e) {
e.preventDefault();
$('#url').val(this.href);
$('button').click();
})

var iframe, d;




$('input[type="button"]').click(function () {
$(iframe.contentWindow).unbind('load');
$(iframe).contents().find('body').html2canvas({
canvasHeight: d.body.scrollHeight,
canvasWidth: d.body.scrollWidth,
logging: true

});

});

$('button').click(function () {

$(this).prop('disabled', true);
var url = $('#url').val();
$('#content').append($('<img />').attr('src', 'loading.gif').css('margin-top', 40));

var urlParts = document.createElement('a');
urlParts.href = url;

$.ajax({
data: {
xhr2: false,
url: urlParts.href

},
url: proxyUrl,
dataType: "jsonp",
success: function (html) {


iframe = document.createElement('iframe');
$(iframe).css({
'visibility': 'hidden'
}).width($(window).width()).height($(window).height());
$('#content').append(iframe);
d = iframe.contentWindow.document;

d.open();

$(iframe.contentWindow).load(function () {

timer = date.getTime();

$(iframe).contents().find('body').html2canvas({
canvasHeight: d.body.scrollHeight,
canvasWidth: d.body.scrollWidth,
logging: true,
proxyUrl: proxyUrl,
logger: function (msg) {
$('#logger').val(function (e, i) {
return i + "\n" + msg;
});

},
ready: function (renderer) {
$('button').prop('disabled', false);
$("#content").empty();
var finishTime = new Date();

var table = $('<table />');
$('#content')
.append('<h2>Screenshot</h2>')
.append(renderer.canvas)
.append(table);

Canvas2Image.saveAsJPEG(renderer.canvas);



}

});

});

$('base').attr('href', urlParts.protocol + "//" + urlParts.hostname + "/");
html = html.replace("<head>", "<head><base href='" + urlParts.protocol + "//" + urlParts.hostname + "/' />");
if ($("#disablejs").prop('checked')) {
html = html.replace(/\<script/gi, "<!--<script");
html = html.replace(/\<\/script\>/gi, "<\/script>-->");
}
// console.log(html);
d.write(html);
d.close();
}
});
});
});
</script>
<base />
</head>
<body>
<div style="float:left;width:500px;">
<label for="url">Website URL:</label>
<input type="url" id="url" value="http://www.google.com" /><button>Get screenshot!</button>
<!-- <input type="button" value="Try anyway" />--><br />
</div>
<div style="clear:both;"></div>
<div id="content"></div>
</body>
</html>

提前致谢,拉齐亚莱

最佳答案

要将当前 URL 作为参数传递,您应该能够使用以下任何一种方法来获取当前 URL:

  • document.URL
  • window.location
  • window.location.href

要使用当前 URL 而不是文本框值,请在 $('button').click() 事件中更改以下内容:

var url = $('#url').val();

到:

var url = document.URL; //or any of the other suggestions

关于javascript将当前url作为参数而不是来自文本框的数据传递,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7015364/

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