{"id":259810,"date":"2024-05-15T13:16:34","date_gmt":"2024-05-15T05:16:34","guid":{"rendered":""},"modified":"2024-05-15T13:16:43","modified_gmt":"2024-05-15T05:16:43","slug":"javascript-%e9%a1%b9%e7%9b%ae%e4%bb%a3%e7%a0%81%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad-url-%e6%98%af%e5%90%a6%e5%90%88%e6%b3%95-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/259810.html","title":{"rendered":"JavaScript \u9879\u76ee\u4ee3\u7801\u5982\u4f55\u5224\u65ad URL \u662f\u5426\u5408\u6cd5"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27111320\/d5a25572-b9dc-40c9-a815-91cf97c88a61.webp\" alt=\"JavaScript \u9879\u76ee\u4ee3\u7801\u5982\u4f55\u5224\u65ad URL \u662f\u5426\u5408\u6cd5\" \/><\/p>\n<p><p>\u8981\u5224\u65adJavaScript\u9879\u76ee\u4ee3\u7801\u4e2d\u7684URL\u662f\u5426\u5408\u6cd5\uff0c\u6700\u5173\u952e\u7684\u6b65\u9aa4\u5305\u62ec<strong>\u4f7f\u7528\u5185\u7f6e\u7684\u6784\u9020\u51fd\u6570\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u68c0\u6d4b<\/strong>\u4ee5\u53ca<strong>\u5229\u7528API\u63d0\u4f9b\u7684\u9a8c\u8bc1\u529f\u80fd<\/strong>\u3002\u5176\u4e2d\uff0c\u4f7f\u7528\u5185\u7f6e\u7684<code>URL<\/code>\u6784\u9020\u51fd\u6570\u662f\u6700\u76f4\u63a5\u548c\u7b80\u5355\u7684\u65b9\u6cd5\u3002\u5728 ECMAScript 2015 (ES6) \u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c1d\u8bd5\u521b\u5efa\u4e00\u4e2a\u65b0\u7684<code>URL<\/code>\u5bf9\u8c61\u6765\u9a8c\u8bc1URL\u3002\u5982\u679c\u63d0\u4f9b\u7684\u5b57\u7b26\u4e32\u4e0d\u662f\u6709\u6548\u7684URL\uff0c\u5219\u6784\u9020\u51fd\u6570\u5c06\u629b\u51fa\u4e00\u4e2a<code>TypeError<\/code>\u5f02\u5e38\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u7f16\u5199\u9002\u5408URL\u7ed3\u6784\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u5e76\u4f7f\u7528\u5b83\u6765\u6d4b\u8bd5\u5f85\u9a8c\u8bc1\u7684\u5b57\u7b26\u4e32\uff0c\u4e5f\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u505a\u6cd5\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u9ad8\u5ea6\u5b9a\u5236\uff0c\u7528\u4ee5\u68c0\u6d4bURL\u7684\u5404\u79cd\u7ec4\u6210\u90e8\u5206\uff0c\u5982\u534f\u8bae\u3001\u57df\u540d\u3001\u7aef\u53e3\u3001\u8def\u5f84\u4ee5\u53ca\u67e5\u8be2\u5b57\u7b26\u4e32\u7b49\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u540e\u7aef\u670d\u52a1\u6216\u8005\u7b2c\u4e09\u65b9API\u6765\u9a8c\u8bc1URL\u7684\u6709\u6548\u6027\uff0c\u67d0\u4e9b\u670d\u52a1\u63d0\u4f9b\u4e86\u5b8c\u6574\u7684URL\u89e3\u6790\u548c\u9a8c\u8bc1\u529f\u80fd\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528\u5185\u7f6e\u6784\u9020\u51fd\u6570\u9a8c\u8bc1URL<\/h3>\n<\/p>\n<p><p>\u5173\u4e8e\u5229\u7528\u5185\u7f6e\u6784\u9020\u51fd\u6570\u68c0\u6d4bURL\u5408\u6cd5\u6027\uff0c\u4ee5\u4e0b\u662f\u8be6\u7ec6\u64cd\u4f5c\uff1a<\/p>\n<\/p>\n<ol>\n<li>\u521d\u59cb\u5316<code>URL<\/code>\u5bf9\u8c61\uff1a\u5c1d\u8bd5\u5c06\u5f85\u68c0\u6d4b\u7684URL\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9<code>URL<\/code>\u6784\u9020\u51fd\u6570\u3002<\/li>\n<li>\u6355\u83b7\u5f02\u5e38\uff1a\u4f7f\u7528<code>try...catch<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u6784\u9020\u51fd\u6570\u53ef\u80fd\u629b\u51fa\u7684\u9519\u8bef\u3002<\/li>\n<li>\u8fd4\u56de\u7ed3\u679c\uff1a\u5982\u679cURL\u6210\u529f\u521b\u5efa\uff0c\u5219\u8ba4\u4e3aURL\u6709\u6548\uff1b\u5426\u5219\uff0c\u5224\u65adURL\u4e0d\u5408\u6cd5\u3002<\/li>\n<\/ol>\n<p><p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-javascript\">function isValidURL(urlString) {<\/p>\n<p>    try {<\/p>\n<p>        new URL(urlString);<\/p>\n<p>        return true;<\/p>\n<p>    } catch (e) {<\/p>\n<p>        return false;<\/p>\n<p>    }<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u68c0\u6d4bURL\u5408\u6cd5\u6027<\/h3>\n<\/p>\n<p><p><strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u9a8c\u8bc1\u6cd5<\/strong>\uff1a<\/p>\n<\/p>\n<ol>\n<li>\u5b9a\u4e49\u6b63\u5219\u8868\u8fbe\u5f0f\uff1a\u6839\u636eURL\u7684\u901a\u7528\u7ed3\u6784\uff0c\u7f16\u5199\u7528\u4e8e\u9a8c\u8bc1URL\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u3002<\/li>\n<li>\u4f7f\u7528<code>test<\/code>\u65b9\u6cd5\uff1a\u5229\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u7684<code>test<\/code>\u65b9\u6cd5\u68c0\u6d4bURL\u5b57\u7b26\u4e32\u662f\u5426\u5339\u914d\u3002<\/li>\n<\/ol>\n<p><p><strong>\u793a\u4f8b\u6b63\u5219\u8868\u8fbe\u5f0f<\/strong>\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-javascript\">const urlRegex = \/^(http|https):\\\/\\\/[^ &quot;]+$\/;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u793a\u4f8b\u9a8c\u8bc1\u51fd\u6570<\/strong>\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-javascript\">function isValidURL(urlString) {<\/p>\n<p>    return urlRegex.test(urlString);<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u5229\u7528API\u9a8c\u8bc1URL<\/h3>\n<\/p>\n<p><p>\u9664\u4e86\u4f7f\u7528\u6784\u9020\u51fd\u6570\u548c\u6b63\u5219\u8868\u8fbe\u5f0f\u4ee5\u5916\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u7b2c\u4e09\u65b9API\u6216\u8005\u81ea\u5df1\u642d\u5efa\u670d\u52a1\u8fdb\u884cURL\u7684\u9a8c\u8bc1\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<ol>\n<li>\u8c03\u7528API\uff1a\u5229\u7528\u7f51\u7edc\u8bf7\u6c42\u5411\u63d0\u4f9bURL\u9a8c\u8bc1\u529f\u80fd\u7684API\u53d1\u9001\u5f85\u9a8c\u8bc1\u7684URL\u3002<\/li>\n<li>\u5904\u7406\u54cd\u5e94\uff1a\u6839\u636eAPI\u8fd4\u56de\u7684\u7ed3\u679c\u6765\u51b3\u5b9aURL\u662f\u5426\u5408\u6cd5\u3002<\/li>\n<\/ol>\n<p><p><strong>\u8c03\u7528\u793a\u4f8b<\/strong>\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-javascript\">function isValidURL(urlString) {<\/p>\n<p>    \/\/ \u53d1\u9001\u8bf7\u6c42\u5230API\uff08\u8be5URL\u4ec5\u7528\u4f5c\u6f14\u793a\uff0c\u5b9e\u9645\u5e94\u7528\u4e2d\u9700\u66ff\u6362\u4e3a\u771f\u5b9e\u7684API\u5730\u5740\uff09<\/p>\n<p>    fetch(`https:\/\/api.urlvalidation.com\/?url=${encodeURIComponent(urlString)}`)<\/p>\n<p>        .then(response =&gt; response.json())<\/p>\n<p>        .then(data =&gt; {<\/p>\n<p>            if (data.isValid) {<\/p>\n<p>                console.log(&quot;URL is valid.&quot;);<\/p>\n<p>            } else {<\/p>\n<p>                console.log(&quot;URL is not valid.&quot;);<\/p>\n<p>            }<\/p>\n<p>        })<\/p>\n<p>        .catch(error =&gt; {<\/p>\n<p>            console.error(&quot;Error validating URL:&quot;, error);<\/p>\n<p>        });<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u6839\u636e\u9879\u76ee\u7684\u5b9e\u9645\u60c5\u51b5\u548c\u9700\u6c42\uff0c\u9009\u62e9\u4e0a\u8ff0\u65b9\u6cd5\u4e2d\u7684\u4e00\u79cd\u6216\u8005\u51e0\u79cd\u7ec4\u5408\u4f7f\u7528\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u9a8c\u8bc1\u6548\u679c\u3002\u5728\u4e00\u4e9b\u590d\u6742\u7684\u573a\u666f\u4e2d\uff0c\u4f8b\u5982\u9700\u8981\u9a8c\u8bc1URL\u662f\u5426\u6307\u5411\u6b63\u5e38\u53ef\u8bbf\u95ee\u7684\u5185\u5bb9\uff0c\u53ef\u80fd\u8fd8\u9700\u8981\u7ed3\u5408\u670d\u52a1\u5668\u7aef\u9a8c\u8bc1\u4ee5\u53ca\u5176\u4ed6\u989d\u5916\u7684\u903b\u8f91\u3002\u603b\u4e4b\uff0c\u5224\u65adURL\u7684\u5408\u6cd5\u6027\u901a\u5e38\u662f\u786e\u4fddWeb\u5e94\u7528\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027\u7684\u91cd\u8981\u6b65\u9aa4\uff0c\u4e0d\u5e94\u8be5\u88ab\u5ffd\u89c6\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. \u5982\u4f55\u4f7f\u7528 JavaScript \u9879\u76ee\u4ee3\u7801\u5224\u65adURL\u7684\u5408\u6cd5\u6027\uff1f<\/strong><\/p>\n<p>\u5728JavaScript\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5224\u65ad\u4e00\u4e2aURL\u662f\u5426\u5408\u6cd5\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u8be5\u6a21\u5f0f\u53ef\u4ee5\u5339\u914d\u5408\u6cd5\u7684URL\u683c\u5f0f\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<code>test()<\/code>\u65b9\u6cd5\u6765\u68c0\u67e5\u4e00\u4e2aURL\u662f\u5426\u7b26\u5408\u8be5\u6a21\u5f0f\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code>function isURLValid(url) {\n  \/\/ \u5b9a\u4e49URL\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\n  var pattern = \/^(https?|ftp):\\\/\\\/[^\\s\/$.?#][^\\s]*$\/i;\n  \n  \/\/ \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u5339\u914d\n  return pattern.test(url);\n}\n\n\/\/ \u6d4b\u8bd5URL\u7684\u5408\u6cd5\u6027\nconsole.log(isURLValid(&quot;https:\/\/www.example.com&quot;)); \/\/ \u8f93\u51fa: true\nconsole.log(isURLValid(&quot;www.example.com&quot;)); \/\/ \u8f93\u51fa: false\nconsole.log(isURLValid(&quot;example.com&quot;)); \/\/ \u8f93\u51fa: false\n<\/code><\/pre>\n<p>\u6ce8\u610f\uff0c\u4e0a\u8ff0\u793a\u4f8b\u4ee3\u7801\u4e2d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u662f\u4e00\u4e2a\u7b80\u5316\u7684\u7248\u672c\uff0c\u53ea\u80fd\u5339\u914d\u57fa\u672c\u7684URL\u683c\u5f0f\u3002\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u6839\u636e\u5177\u4f53\u9700\u6c42\u81ea\u5b9a\u4e49\u66f4\u590d\u6742\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u3002<\/p>\n<p><strong>2. JavaScript\u9879\u76ee\u4e2d\u5982\u4f55\u5904\u7406URL\u7684\u5408\u6cd5\u6027\u9a8c\u8bc1\uff1f<\/strong><\/p>\n<p>\u5728JavaScript\u9879\u76ee\u4e2d\uff0c\u4e3a\u4e86\u5904\u7406URL\u7684\u5408\u6cd5\u6027\u9a8c\u8bc1\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\u6765\u5c01\u88c5\u9a8c\u8bc1\u903b\u8f91\u3002\u8be5\u51fd\u6570\u53ef\u4ee5\u63a5\u6536\u4e00\u4e2aURL\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u8868\u793a\u8be5URL\u662f\u5426\u5408\u6cd5\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code>function isURLValid(url) {\n  var pattern = \/^(https?|ftp):\\\/\\\/[^\\s\/$.?#][^\\s]*$\/i;\n  return pattern.test(url);\n}\n\nfunction handleURLValidation(url) {\n  if (isURLValid(url)) {\n    console.log(&quot;URL\u5408\u6cd5&quot;);\n    \/\/ \u6267\u884c\u5176\u4ed6\u903b\u8f91\n  } else {\n    console.log(&quot;URL\u4e0d\u5408\u6cd5&quot;);\n    \/\/ \u6267\u884c\u5176\u4ed6\u903b\u8f91\n  }\n}\n\n\/\/ \u8c03\u7528\u51fd\u6570\u8fdb\u884cURL\u5408\u6cd5\u6027\u9a8c\u8bc1\nhandleURLValidation(&quot;https:\/\/www.example.com&quot;);\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u7f16\u5199\u4e86\u4e00\u4e2a\u540d\u4e3a<code>handleURLValidation()<\/code>\u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u6536\u4e00\u4e2aURL\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u6839\u636e\u5408\u6cd5\u6027\u7ed3\u679c\u8f93\u51fa\u76f8\u5e94\u4fe1\u606f\u3002\u60a8\u53ef\u4ee5\u5728\u51fd\u6570\u4e2d\u6dfb\u52a0\u5176\u4ed6\u9700\u8981\u6267\u884c\u7684\u903b\u8f91\uff0c\u6bd4\u5982\u53d1\u9001\u8bf7\u6c42\u3001\u66f4\u65b0\u754c\u9762\u7b49\u3002<\/p>\n<p><strong>3. \u6709\u6ca1\u6709\u73b0\u6210\u7684JavaScript\u5e93\u53ef\u4ee5\u7528\u4e8eURL\u5408\u6cd5\u6027\u9a8c\u8bc1\uff1f<\/strong><\/p>\n<p>\u662f\u7684\uff0c\u6709\u5f88\u591a\u73b0\u6210\u7684JavaScript\u5e93\u53ef\u4ee5\u7528\u4e8eURL\u5408\u6cd5\u6027\u9a8c\u8bc1\u3002\u4f8b\u5982\uff0c<code>validator.js<\/code>\u662f\u4e00\u4e2a\u5e38\u7528\u7684\u9a8c\u8bc1\u5e93\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u4e00\u4e2a\u7528\u4e8e\u9a8c\u8bc1URL\u7684\u51fd\u6570<code>isURL()<\/code>\u3002<\/p>\n<p>\u8981\u4f7f\u7528<code>validator.js<\/code>\u8fdb\u884cURL\u5408\u6cd5\u6027\u9a8c\u8bc1\uff0c\u60a8\u9700\u8981\u901a\u8fc7npm\u5b89\u88c5\u8be5\u5e93\uff0c\u5e76\u5728\u9879\u76ee\u4e2d\u5f15\u5165\u76f8\u5e94\u4ee3\u7801\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code>\/\/ \u901a\u8fc7npm\u5b89\u88c5validator.js\u5e93\nnpm install validator\n\n\/\/ \u5728JavaScript\u6587\u4ef6\u4e2d\u5f15\u5165validator.js\nvar validator = require(&#039;validator&#039;);\n\nfunction handleURLValidation(url) {\n  if (validator.isURL(url)) {\n    console.log(&quot;URL\u5408\u6cd5&quot;);\n    \/\/ \u6267\u884c\u5176\u4ed6\u903b\u8f91\n  } else {\n    console.log(&quot;URL\u4e0d\u5408\u6cd5&quot;);\n    \/\/ \u6267\u884c\u5176\u4ed6\u903b\u8f91\n  }\n}\n\n\/\/ \u8c03\u7528\u51fd\u6570\u8fdb\u884cURL\u5408\u6cd5\u6027\u9a8c\u8bc1\nhandleURLValidation(&quot;https:\/\/www.example.com&quot;);\n<\/code><\/pre>\n<p>\u6ce8\u610f\uff0c\u4e0a\u8ff0\u793a\u4f8b\u4ee3\u7801\u5047\u8bbe\u60a8\u6b63\u5728\u4f7f\u7528Node.js\u5f00\u53d1JavaScript\u9879\u76ee\uff0c\u5982\u679c\u662f\u6d4f\u89c8\u5668\u7aef\u9879\u76ee\uff0c\u60a8\u9700\u8981\u5f15\u5165\u76f8\u5e94\u7684CDN\u94fe\u63a5\u6216\u5c06\u5e93\u6587\u4ef6\u4e0b\u8f7d\u5230\u672c\u5730\u5e76\u5f15\u5165\u3002\u8bf7\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u65b9\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u5224\u65adJavaScript\u9879\u76ee\u4ee3\u7801\u4e2d\u7684URL\u662f\u5426\u5408\u6cd5\uff0c\u6700\u5173\u952e\u7684\u6b65\u9aa4\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684\u6784\u9020\u51fd\u6570\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u68c0\u6d4b\u4ee5\u53ca\u5229 [&hellip;]","protected":false},"author":3,"featured_media":259825,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/259810"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=259810"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/259810\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/259825"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=259810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=259810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=259810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}