js复制网页上的内容到剪切板

  js复制网页上的内容到剪切板

2023-07-17 测试，原来的代码已经没用了，现用下面的代码，在firefox和edge上本地测试成功，放服务器上不成功，网上搜索说是服务器上的话要在https下才行的

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function aaa() {     var txt = $('#hfDesc').val();     navigator.clipboard.writeText(txt).then(         () => {             /* clipboard successfully set */             alert('复制成功');         },         () => {         /* clipboard write failed */             alert('复制失败');         },     );   }

　　用clipboard.min.js，下载在 http://www.niunan.net/js/clipboard.min.js

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<script src="/js/clipboard.min.js"></script> <script>     function aaa() {         var txt = $('#hfDesc').val();        var clipboard = new ClipboardJS('#btnCopy', {             text: function (trigger) {                 return txt;             }         });         clipboard.on('success', function (e) {             alert('复制成功');         });     }     </script>

 

 原来的代码：

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function copyToClipboard(txt) {     if (window.clipboardData) {         window.clipboardData.clearData();         window.clipboardData.setData("Text", txt);         alert("已成功复制文本.");     } else if (navigator.userAgent.indexOf("Opera") != -1) {         window.location = txt;     } else if (window.netscape) {         try {             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");         } catch (e) {             alert("被浏览器拒绝！\n请在浏览器地址栏输入'about:config'并回车\n然后将'signed.applets.codebase_principal_support'设置为'true'");         }         var clip = Components.classes['@@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);         if (!clip) return;         var trans = Components.classes['@@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);         if (!trans) return;         trans.addDataFlavor('text/unicode');         var str = new Object();         var len = new Object();         var str = Components.classes["@@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);         var copytext = txt;         str.data = copytext;         trans.setTransferData("text/unicode", str, copytext.length * 2);         var clipid = Components.interfaces.nsIClipboard;         if (!clip) return false;         clip.setData(trans, null, clipid.kGlobalClipboard);         alert("已成功复制文本.");     } }