如何将div内的文本复制到剪贴板?我有一个div，需要添加一个链接，将文本添加到剪贴板。有解决办法吗?
<p class="content">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</p>
<a class="copy-text">copy Text</a>
在我点击复制文本，然后我按Ctrl + V，它必须被粘贴。
当前回答
纯JS，没有内联onclick，配对类“内容-复制按钮”。如果你有很多元素，会更舒服)
(function(){ /* Creating textarea only once, but not each time */ let area = document.createElement('textarea'); document.body.appendChild( area ); area.style.display = "none"; let content = document.querySelectorAll('.js-content'); let copy = document.querySelectorAll('.js-copy'); for( let i = 0; i < copy.length; i++ ){ copy[i].addEventListener('click', function(){ area.style.display = "block"; /* because the classes are paired, we can use the [i] index from the clicked button, to get the required text block */ area.value = content[i].innerText; area.select(); document.execCommand('copy'); area.style.display = "none"; /* decorative part */ this.innerHTML = 'Cop<span style="color: red;">ied</span>'; /* arrow function doesn't modify 'this', here it's still the clicked button */ setTimeout( () => this.innerHTML = "Copy", 2000 ); }); } })(); hr { margin: 15px 0; border: none; } <span class="js-content">1111</span> <button class="js-copy">Copy</button> <hr> <span class="js-content">2222</span> <button class="js-copy">Copy</button> <hr> <span class="js-content">3333</span> <button class="js-copy">Copy</button>
旧的浏览器支持:
(function(){ var area = document.createElement('textarea'); document.body.appendChild( area ); area.style.display = "none"; var content = document.querySelectorAll('.js-content'); var copy = document.querySelectorAll('.js-copy'); for( var i = 0; i < copy.length; i++ ){ copyOnClick(i); } function copyOnClick(i){ copy[i].addEventListener('click', function(){ area.style.display = "block"; area.value = content[i].innerText; area.select(); document.execCommand('copy'); area.style.display = "none"; var t = this; t.innerHTML = 'Cop<span style="color: red;">ied</span>'; setTimeout( function(){ t.innerHTML = "Copy" }, 2000 ); }); } })(); hr { margin: 15px 0; border: none; } <span class="js-content">1111</span> <button class="js-copy">Copy</button> <hr> <span class="js-content">2222</span> <button class="js-copy">Copy</button> <hr> <span class="js-content">3333</span> <button class="js-copy">Copy</button>
其他回答
<!DOCTYPE html>
<html>
<head>
<title></title>
<link href="css/index.css" rel="stylesheet" />
<script src="js/jquery-2.1.4.min.js"></script>
<script>
function copy()
{
try
{
$('#txt').select();
document.execCommand('copy');
}
catch(e)
{
alert(e);
}
}
</script>
</head>
<body>
<h4 align="center">Copy your code</h4>
<textarea id="txt" style="width:100%;height:300px;"></textarea>
<br /><br /><br />
<div align="center"><span class="btn-md" onclick="copy();">copy</span></div>
</body>
</html>
js是一个很好的实用工具，它允许在不使用Flash的情况下将文本或HTML数据复制到剪贴板。它很容易使用;只需要包含.js并使用如下代码:
<button id='markup-copy'>Copy Button</button>
<script>
document.getElementById('markup-copy').addEventListener('click', function() {
clipboard.copy({
'text/plain': 'Markup text. Paste me into a rich text editor.',
'text/html': '<i>here</i> is some <b>rich text</b>'
}).then(
function(){console.log('success'); },
function(err){console.log('failure', err);
});
});
</script>
clipboard.js也在GitHub上。
2016年1月15日编辑:今天编辑了顶部的答案，引用了我在2015年8月发布的答案中的相同API。前面的文本指示用户使用ZeroClipboard。只是想澄清一下，我并没有从jfriend00的答案中抽取这个，而是相反。
没有flash或任何其他要求的更好方法是clipboard.js。你所需要做的就是在任何按钮上添加data-clipboard-target="#toCopyElement"，初始化它new Clipboard('.btn');它会将id为toCopyElement的DOM内容复制到剪贴板。这是一个片段，通过链接复制您的问题中提供的文本。
虽然有一个限制是它不能在safari上运行，但它可以在所有其他浏览器上运行，包括移动浏览器，因为它不使用flash
$(函数(){ 新剪贴板(“.copy-text”); })； < script src = " https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js " > < /脚本> < script src = " https://cdn.jsdelivr.net/clipboard.js/1.5.12/clipboard.min.js " > < /脚本> <p id="content">Lorem Ipsum只是印刷排版行业的假文本。自16世纪以来，Lorem Ipsum一直是行业标准的虚拟文本 <a class="copy- Text " data-clipboard-target="#content" href="#">copy Text</a>
2022年6月
更新:现在正确的方法是使用剪贴板API。
例如:
// get the text from the DOM Element:
const textToCopy = document.querySelector('.content').innerText
// when someone clicks on the <a class="copy-text"> element
// (which should be a <button>), execute the copy command:
document.querySelector('.copy-text').addEventListener('click' , ()=> {
navigator.clipboard.writeText(textToCopy).then(
function() {
/* clipboard successfully set */
window.alert('Success! The text was copied to your clipboard')
},
function() {
/* clipboard write failed */
window.alert('Opps! Your browser does not support the Clipboard API')
}
)
})
就是这样。
如果你想看看在Clipboard API引入之前的解决方案(现在不是一个好的实践):
$('button.copyButton').click(function(){
$(this).siblings('input.linkToCopy').select();
document.execCommand("copy");
});
HTML:
<button class="copyButton">click here to copy</button>
<input class="linkToCopy" value="TEXT TO COPY"
style="position: absolute; z-index: -999; opacity: 0;" />
下面是多个答案的组合。这将正确地保存换行符。
// Copies a value to the clipboard
window.copyToClipboard = function(value) {
// navigator clipboard api needs a secure context (https)
if (navigator.clipboard && window.isSecureContext) {
// navigator clipboard api method
return navigator.clipboard.writeText(value).then(function () {
//alert('It worked! Do a CTRL - V to paste')
}, function () {
alert('Error while copying to clipboard.')
});
} else {
// text area method
let textArea = document.createElement("textarea");
textArea.value = value;
// make the textarea out of viewport
textArea.style.position = "fixed";
textArea.style.left = "-999999px";
textArea.style.top = "-999999px";
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
document.execCommand('copy');
textArea.remove();
}
}
