{"id":10150,"date":"2021-10-28T18:02:34","date_gmt":"2021-10-28T10:02:34","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10150"},"modified":"2021-10-28T18:13:14","modified_gmt":"2021-10-28T10:13:14","slug":"js-copy-paste-clipboard","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2021\/10\/js-copy-paste-clipboard\/","title":{"rendered":"JS\u590d\u5236\u6587\u5b57\u5230\u526a\u5207\u677f\u7684\u6781\u7b80\u5b9e\u73b0\u53ca\u6269\u5c55"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10150\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=10150<\/a> \u946b\u7a7a\u95f4-\u946b\u751f\u6d3b<br \/>\n\u672c\u6587\u6b22\u8fce\u5206\u4eab\u4e0e\u805a\u5408\uff0c\u5168\u6587\u8f6c\u8f7d\u5c31\u4e0d\u5fc5\u4e86\uff0c\u5c0a\u91cd\u7248\u6743\uff0c\u5708\u5b50\u5c31\u8fd9\u4e48\u5927\uff0c\u82e5\u6025\u7528\u53ef\u4ee5\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202110-copy.png';if(!\/zhangxinxu\/.test(location.host)){document.body.addEventListener('mousedown',function(){location.href='https:\/\/www.zhangxinxu.com\/wordpress\/?p=10150'});}<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/copy-cover.png\" width=\"479\" height=\"300\" alt=\"JS\u590d\u5236\u6587\u5b57\u5230\u526a\u5207\u677f\" class=\"alignright thumb clip size-medium\" \/><\/p>\n<h3>\u4e00\u3001execCommand\u65b9\u6cd5<\/h3>\n<p>\u590d\u5236\u4e00\u6bb5\u6587\u5b57\u5185\u5bb9\u5b9e\u73b0\u7684\u8001\u724c\u65b9\u6cd5\u5c31\u662f <code>document.execCommand<\/code> \u65b9\u6cd5\u4e86\uff0c\u793a\u610f\uff1a<\/p>\n<pre>document.execCommand('copy', true);<\/pre>\n<p>\u4e14\u517c\u5bb9\u6027\u8d85\u7ea7\u68d2\uff0c\u5982\u4e0b\u622a\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/2021-10-27_111916.png\" width=\"635\" height=\"241\" alt=\"execCommand\u517c\u5bb9\u6027\"><\/p>\n<p>\u662f\u4e0d\u662f\u5927\u6709\u5927\u7ed3\u5c40 happy ending \u7684\u611f\u89c9\uff1f<\/p>\n<p>\u522b\u6025\uff0c<code>execCommand()<\/code> \u5e76\u6ca1\u6709\u8868\u9762\u770b\u4e0a\u53bb\u7684\u90a3\u4e48\u7f8e\u597d\u3002<\/p>\n<h4>1. \u6267\u884c\u6709\u9650\u5236<\/h4>\n<p>\u9996\u5148\uff0c\u5fc5\u987b\u6587\u5b57\u5185\u5bb9\u9009\u4e2d\uff0c\u518d\u6267\u884c <code>execCommand()<\/code> \u65b9\u6cd5\u624d\u6709\u6548\uff0c\u5982\u4f55\u8ba9\u6587\u5b57\u9009\u4e2d\u5462\uff1f<\/p>\n<p>\u901a\u5e38\u505a\u6cd5\u662f\u653e\u5728\u4e00\u4e2a <code>&lt;input&gt;<\/code> \u6216\u8005 <code>&lt;textarea&gt;<\/code> \u5143\u7d20\u4e2d\uff0c\u7136\u540e\u8ba9\u8fd9\u4e2a\u8f93\u5165\u6846\u5143\u7d20\u9009\u4e2d\uff0c\u793a\u610f\u5982\u4e0b\uff1a<\/p>\n<pre>textarea.select();\r\n\/\/ \u6267\u884c\u590d\u5236\r\ndocument.execCommand('copy', true);<\/pre>\n<p>\u4f46\u662f\uff0c\u5b9e\u9645\u5f00\u53d1\uff0c\u600e\u4e48\u53ef\u80fd\u8ba9\u4f60\u5728\u9875\u9762\u4e0a\u585e\u4e00\u4e2a\u8f93\u5165\u6846\u5462\uff1f<\/p>\n<p>\u6240\u4ee5\uff0c\u901a\u5e38\u505a\u6cd5\u662f\u521b\u5efa\u4e00\u4e2a\u9690\u85cf\u7684\u8f93\u5165\u6846\uff0c\u8d4b\u503c\uff0c\u9009\u4e2d\uff0c\u7136\u540e\u590d\u5236\u3002<\/p>\n<pre>\/\/ \u521b\u5efa\u8f93\u5165\u6846\r\nvar textarea = document.createElement('textarea');\r\ndocument.body.appendChild(textarea);\r\n\/\/ \u9690\u85cf\u6b64\u8f93\u5165\u6846\r\ntextarea.style.position = 'absolute';\r\ntextarea.style.clip = 'rect(0 0 0 0)';\r\n\/\/ \u8d4b\u503c\r\ntextarea.value = '\u590d\u5236\u7684\u6587\u672c\u5185\u5bb9...';\r\n\/\/ \u9009\u4e2d\r\ntextarea.select();\r\n\/\/ \u590d\u5236\r\ndocument.execCommand('copy', true);<\/pre>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u6709\u65f6\u5019\uff0c\u8f93\u5165\u6846\u53ef\u80fd\u4e0d\u5728\u9875\u9762\u7684\u53ef\u89c6\u533a\u57df\u4e4b\u5185\uff0c\u6b64\u65f6\u6267\u884c <code>textarea.select()<\/code> \u65b9\u6cd5\u4f1a\u89e6\u53d1\u6d4f\u89c8\u5668\u9ed8\u8ba4\u7684\u63a7\u4ef6\u8df3\u8f6c\u884c\u4e3a\uff0c\u4e5f\u5c31\u662f\u9875\u9762\u4f1a\u89e6\u53d1\u6eda\u52a8\u884c\u4e3a\u8fdb\u884c\u91cd\u5b9a\u4f4d\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u521b\u5efa\u7684\u6587\u672c\u57df\u52a1\u5fc5\u8981\u4fdd\u8bc1\u5728\u5c4f\u5e55\u533a\u57df\u5185\uff0c\u5426\u5219\u590d\u5236\u884c\u4e3a\u6267\u884c\u7684\u65f6\u5019\uff0c\u4f1a\u51fa\u73b0\u610f\u6599\u4e4b\u5916\u7684\u4f53\u9a8c\u95ee\u9898\uff08\u53ef\u4ee5\u4f7f\u7528\u56fa\u5b9a\u5b9a\u4f4d\u89e3\u51b3\uff09\u3002<\/p>\n<h4>2. \u6027\u80fd\u9690\u60a3<\/h4>\n<p>\u5176\u6b21\uff0c\u5c31\u7b97\u590d\u5236\u529f\u80fd\u5b9e\u73b0\u4e86\uff0c\u6027\u80fd\u4e5f\u662f\u4e2a\u9700\u8981\u7559\u610f\u7684\u95ee\u9898\u3002<\/p>\n<p>\u65e5\u5e38\u5f00\u53d1\uff0c\u6211\u4eec\u9700\u8981\u590d\u5236\u7684\u5185\u5bb9\u4e00\u822c\u662f\u4e00\u6bb5\u53e3\u4ee4\uff0c\u4e00\u4e2a\u94fe\u63a5\uff0c\u5185\u5bb9\u4fe1\u606f\u5e76\u4e0d\u5927\uff0c\u4f7f\u7528 <code>execCommand()<\/code> \u65b9\u6cd5\u5b8c\u5168\u6ca1\u95ee\u9898\uff0c\u662f\u65e0\u611f\u77e5\u7684\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u9700\u8981\u590d\u5236\u7684\u662f\u975e\u5e38\u5927\u6bb5\u7684\u5185\u5bb9\uff0c\u5219 <code>execCommand()<\/code> \u65b9\u6cd5\u53ef\u80fd\u4f1a\u5f15\u8d77\u5361\u987f\uff0c\u56e0\u4e3a <code>execCommand()<\/code> \u65b9\u6cd5\u662f\u4e00\u4e2a\u540c\u6b65\u65b9\u6cd5\uff0c\u5fc5\u987b\u7b49\u590d\u5236\u64cd\u4f5c\u7ed3\u675f\uff0c\u624d\u80fd\u7ee7\u7eed\u6267\u884c\u540e\u9762\u7684\u4ee3\u7801\u3002<\/p>\n<h4>3. \u65e0\u6cd5\u4fee\u6539\u590d\u5236\u5185\u5bb9<\/h4>\n<p>\u4f7f\u7528 <code>execCommand()<\/code> \u65b9\u6cd5\u590d\u5236\u7684\u6587\u5b57\u5185\u5bb9\uff0c\u662f\u65e0\u6cd5\u8fdb\u884c\u4fee\u6539\u4e0e\u66ff\u6362\u7684\uff0c\u8fd9\u5176\u5b9e\u662f\u4e0d\u53cb\u597d\u7684\uff0c\u56e0\u4e3a\u5bf9\u590d\u5236\u6216\u62d6\u62fd\u7684\u672c\u6587\u5185\u5bb9\u8fdb\u884c\u5904\u7406\u8fd8\u662f\u6bd4\u8f83\u5e38\u89c1\u7684\u3002<\/p>\n<p>\u6b63\u662f\u7531\u4e8e\u4ee5\u4e0a\u4e00\u4e9b\u9650\u5236\uff0c<code>execCommand()<\/code> \u5df2\u7ecf\u662f\u4e0d\u63a8\u8350\u7684\u4f7f\u7528\u7684\u65b9\u6cd5\uff0c\u4e1a\u754c\u63a8\u8350\u4f7f\u7528\u5168\u65b0\u7684 Clipboard API\u3002<\/p>\n<p><span class=\"s\">\/\/ zxx: \u867d\u7136\u4e0d\u63a8\u8350\uff0c\u4f46\u662f\u67b6\u4e0d\u4f4f\u517c\u5bb9\u6027\u597d\uff0c\u4e14\u4ee5\u540e\u6d4f\u89c8\u5668\u4e5f\u6ca1\u6709\u7406\u7531\u4e0d\u7ee7\u7eed\u652f\u6301\uff08\u5426\u5219\u5f71\u54cd\u592a\u5927\u4e86\uff09\uff0c\u56e0\u6b64\uff0c<code>execCommand()<\/code> \u65b9\u6cd5\u8fd8\u662f\u76ee\u524d\u7684\u4e3b\u6d41\u5b9e\u73b0\u65b9\u6848\u3002<\/span><\/p>\n<h3>\u4e8c\u3001Clipboard API<\/h3>\n<p>\u4f7f\u7528 Clipboard API \u5b9e\u73b0\u590d\u5236\u6548\u679c\u5c31\u7b80\u5355\u4e86\uff0c<\/p>\n<pre>if (navigator.clipboard) {\r\n    navigator.clipboard.writeText(text);\r\n}<\/pre>\n<p>\u5176\u4e2d\uff0c<code>text<\/code> \u5c31\u662f\u9700\u8981\u590d\u5236\u7684\u6587\u672c\u5185\u5bb9\uff0c\u5c31\u8fd9\u4e48\u7b80\u5355\u3002<\/p>\n<p>\u65e0\u9700\u6d4f\u89c8\u5668\u6743\u9650\u7533\u8bf7\uff0c\u6587\u5b57\u5185\u5bb9\u76f4\u63a5\u8fdb\u5165\u526a\u5207\u677f\uff0c\u4ee3\u7801\u7b80\u5355\uff0c\u4f7f\u7528\u65b9\u4fbf\uff0c\u540c\u65f6\u662f\u5f02\u6b65\uff0c\u4e0d\u7528\u62c5\u5fc3\u963b\u585e\u3002<\/p>\n<p>\u7136\u800c\uff0c\u517c\u5bb9\u6027\u8fd9\u5757\u7684\u4e0d\u8db3\u5b9e\u5728\u662f\u8ba9\u4eba\u9057\u61be\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/2021-10-28_110812.png\" width=\"634\" height=\"234\" alt=\"clipboard writeText\u517c\u5bb9\u6027\"><\/p>\n<p><span class=\"hidden\">\/\/zxx: \u5982\u679c\u4f60\u770b\u5230\u8fd9\u6bb5\u6587\u5b57\uff0c\u8bf4\u660e\u4f60\u73b0\u5728\u8bbf\u95ee\u662f\u4e0d\u662f\u539f\u6587\u7ad9\u70b9\uff0c\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u5728\u8fd9\u91cc\uff1ahttps:\/\/www.zhangxinxu.com\/wordpress\/?p=10150\uff08\u4f5c\u8005\u5f20\u946b\u65ed\uff09<\/span><\/p>\n<h3>\u4e09\u3001\u4ee3\u7801\u6574\u5408\u4e0e\u5c01\u88c5<\/h3>\n<p>\u6240\u4ee5\u8981\u590d\u5236\u4e00\u6bb5\u6587\u5b57\u5230\u526a\u5207\u677f\uff0c\u53ef\u4ee5\u8bd5\u8bd5\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n<pre>var text = '\u88ab\u590d\u5236\u7684\u5185\u5bb9\uff0c\u5566\u5566\u5566~';\r\nif (navigator.clipboard) {\r\n    \/\/ clipboard api \u590d\u5236\r\n    navigator.clipboard.writeText(text);\r\n} else {\r\n    var textarea = document.createElement('textarea');\r\n    document.body.appendChild(textarea);\r\n    \/\/ \u9690\u85cf\u6b64\u8f93\u5165\u6846\r\n    textarea.style.position = 'fixed';\r\n    textarea.style.clip = 'rect(0 0 0 0)';\r\n    textarea.style.top = '10px';\r\n    \/\/ \u8d4b\u503c\r\n    textarea.value = text;\r\n    \/\/ \u9009\u4e2d\r\n    textarea.select();\r\n    \/\/ \u590d\u5236\r\n    document.execCommand('copy', true);\r\n    \/\/ \u79fb\u9664\u8f93\u5165\u6846\r\n    document.body.removeChild(textarea);\r\n}<\/pre>\n<p>\u5305\u62ec IE \u5728\u5185\u7684\u6d4f\u89c8\u5668\u5168\u517c\u5bb9\u3002<\/p>\n<p>\u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202110\/js-copy-text-demo.php\" rel=\"noopener\" target=\"_blank\">\u590d\u5236\u6587\u5b57\u5230\u526a\u5207\u677fJS\u4ee3\u7801\u7247\u6bb5demo<\/a><\/p>\n<p>\u70b9\u51fb\u4e0b\u56fe\u6309\u94ae\uff0c\u5c31\u53ef\u4ee5\u590d\u5236\u6587\u5b57\u5185\u5bb9\u5230\u526a\u5207\u677f\u4e86\uff0c\u53ef\u4ee5\u7c98\u8d34\u5230\u4e0b\u9762\u7684\u591a\u884c\u6587\u672c\u8f93\u5165\u6846\u4e2d\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/2021-10-28_162851.png\" width=\"402\" height=\"261\" alt=\"demo\u9875\u9762\u622a\u56fe\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4e0a\u9762\u4ee3\u7801\u867d\u597d\uff0c\u5374\u6ca1\u6709\u590d\u5236\u6210\u529f\u7684\u63d0\u793a\u6548\u679c\u3002<\/p>\n<p>\u6240\u4ee5\u6211\u7ed3\u5408\u5b9e\u9645\u5f00\u53d1\u9700\u6c42\uff0c\u91cd\u65b0\u6574\u4e2a\u4e86\u4e2a JS \u6587\u4ef6\uff0c\u5e76\u653e\u5728\u4e86 gitee \u4e0a\u3002<\/p>\n<h4>Gitee \u4ed3\u5e93\u5f00\u6e90<\/h4>\n<p>\u5730\u5740\u662f\uff1a<a href=\"https:\/\/gitee.com\/zhangxinxu\/copy-text\" rel=\"noopener\" target=\"_blank\">https:\/\/gitee.com\/zhangxinxu\/copy-text<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/2021-10-28_163340.png\" width=\"485\" height=\"275\" alt=\"JS \u4ee3\u7801\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u6548\u679c\u662f\u8fd9\u6837\u7684\uff0c\u70b9\u51fb\u6309\u94ae\u590d\u5236\u540e\uff0c\u6309\u94ae\u4e0a\u65b9\u4f1a\u51fa\u73b0\u7eff\u8272\u7684\u6587\u5b57\u63d0\u793a\u4e00\u95ea\u800c\u8fc7\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/text-copy.gif\" width=\"374\" height=\"152\" alt=\"\u590d\u5236\u6210\u529f\u63d0\u793a\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>\/\/ content \u53ea\u80fd\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\r\ncopyText(content);\r\n\/\/ \u6216\u8005\r\n\/\/ content \u6b64\u65f6\u4e5f\u53ef\u4ee5\u662f DOM \u5143\u7d20\u5bf9\u8c61\r\ncopyText(button, content);<\/pre>\n<p>\u5176\u4e2d\uff1a<\/p>\n<dl>\n<dt><strong>button<\/strong><\/dt>\n<dd>\u53ef\u9009\u3002Element\u3002\u8868\u793a\u89e6\u53d1\u590d\u5236\u7684\u6309\u94ae\u5143\u7d20\u3002<\/dd>\n<dt><strong>content<\/strong><\/dt>\n<dd>\u5fc5\u987b\u3002String|Element\u3002\u8868\u793a\u9700\u8981\u590d\u5236\u7684\u5185\u5bb9\u3002\u5982\u679c\u662f DOM \u5143\u7d20\uff0c\u5219\u4f1a\u4f7f\u7528\u5185\u90e8\u7684\u6587\u672c\u6216\u8005\u503c\u4f5c\u4e3a\u590d\u5236\u5185\u5bb9\u3002\u5982\u679c\u4f7f\u7528\u7684\u662f <code>copyText(content)<\/code> \u8bed\u6cd5\uff0ccontent \u53ea\u80fd\u662f\u5b57\u7b26\u4e32\u3002<\/dd>\n<\/dl>\n<p>\u4e5f\u5c31\u662f\u5982\u679c\u6709 button \u53c2\u6570\uff0c\u70b9\u51fb\u65f6\u5019\u5c31\u4f1a\u81ea\u52a8\u51fa\u73b0\u63d0\u793a\uff0c\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u5b57\u7b26\u4e32\uff0c\u5219\u76f4\u63a5\u590d\u5236\u5185\u5bb9\u3002<\/p>\n<p>\u8fd9\u6837\uff0c\u5c31\u53ef\u4ee5\u517c\u987e\u591a\u79cd\u573a\u666f\u4e86\u3002<\/p>\n<p>\u6b64 JS \u4ee3\u7801\u7247\u6bb5\u975e\u5e38\u65f6\u5019\u9700\u8981\u654f\u6377\u5f00\u53d1\u7684\u6f14\u793a\u9875\u9762\uff0c\u6d3b\u52a8\u9875\u9762\uff0c\u5bf9\u89c6\u89c9\u8981\u6c42\u4e0d\u9ad8\u7684\u540e\u53f0\u9875\u9762\u7b49\u3002<\/p>\n<p>\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8<a href=\"https:\/\/gitee.com\/zhangxinxu\" rel=\"noopener\" target=\"_blank\">\u6211\u7684 gitee \u8d26\u53f7<\/a>\uff0c\u4f1a\u4e0d\u5b9a\u671f\u66f4\u65b0 JS \u76f8\u5173\u7684\u5c0f\u73a9\u610f\u3002<\/p>\n<h3>\u56db\u3001\u77e5\u540d\u5f00\u6e90 clipboard.js 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decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/2764.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u6b22\u8fce\u5206\u4eab\uff0c\u52ff\u5168\u6587\u8f6c\u8f7d\uff0c\u5982\u679c\u5b9e\u5728\u559c\u6b22\uff0c\u53ef\u6536\u85cf\uff0c\u6c38\u4e0d\u8fc7\u671f\uff0c\u4e14\u4f1a\u53ca\u65f6\u66f4\u65b0\u77e5\u8bc6\u70b9\u53ca\u4fee\u6b63\u9519\u8bef\uff0c\u9605\u8bfb\u4f53\u9a8c\u4e5f\u66f4\u597d\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10150\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=10150<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/copy-cover.png\" width=\"160\" height=\"100\" alt=\"JS\u590d\u5236\u6587\u5b57\u5230\u526a\u5207\u677f\" class=\"alignright size-medium\" 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