{"id":53563,"date":"2024-12-03T13:21:04","date_gmt":"2024-12-03T05:21:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53563\/"},"modified":"2024-12-03T13:21:04","modified_gmt":"2024-12-03T05:21:04","slug":"vue%e7%bb%84%e4%bb%b6beforedestroy%e9%92%a9%e5%ad%90%e4%b8%ad%e5%bc%82%e6%ad%a5%e4%bb%a3%e7%a0%81%e6%93%8d%e4%bd%9cdom%e6%8a%a5%e9%94%99%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53563\/","title":{"rendered":"Vue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Vue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aVue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241202\/1733103584674d0fe06ad12.jpg\" class=\"aligncenter\" title=\"Vue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" alt=\"Vue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>vue\u4e2dbeforedestroy\u65b9\u6cd5\u6267\u884c\u5f02\u6b65\u4ee3\u7801\u62a5\u9519\uff1f<\/strong><\/p>\n<p>\u5728vue\u7ec4\u4ef6\u7684beforedestroy\u94a9\u5b50\u4e2d\u6267\u884c\u5f02\u6b65\u4ee3\u7801\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u9519\u8bef\u3002\u5177\u4f53\u800c\u8a00\uff0c\u5f53\u5c1d\u8bd5\u64cd\u4f5cdom\u5143\u7d20\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4ee5\u4e0b\u9519\u8bef\uff1a<\/p>\n<pre>typeerror: cannot read property 'remove' of null<\/pre>\n<p><strong>\u5982\u4f55\u89e3\u51b3\uff1f<\/strong><\/p>\n<p><strong>1. \u68c0\u67e5dom\u5143\u7d20\u662f\u5426\u5b58\u5728<\/strong><\/p>\n<p>\u786e\u4fdd\u5728\u8fdb\u884c\u4efb\u4f55dom\u64cd\u4f5c\u4e4b\u524d\uff0cdom\u5143\u7d20\u786e\u5b9e\u5b58\u5728\u3002\u5982\u679c\u5143\u7d20\u5df2\u88ab\u9500\u6bc1\uff0c\u5219\u65e0\u6cd5\u518d\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\u3002\u53ef\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u8fdb\u884c\u5224\u65ad\uff1a<\/p>\n<pre>if (!document.getelementbyid(`video${index}`)) {\n  resolve()\n  return\n}<\/pre>\n<p><strong>2. \u53d6\u6d88\u5728beforedestroy\u4e2d\u6267\u884c\u7684\u5f02\u6b65\u64cd\u4f5c<\/strong><\/p>\n<p>beforedestroy\u94a9\u5b50\u8868\u793a\u7ec4\u4ef6\u5c06\u88ab\u9500\u6bc1\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c1d\u8bd5\u4fee\u6539dom\u5143\u7d20\u662f\u6ca1\u6709\u5fc5\u8981\u7684\uff0c\u56e0\u4e3avue\u672c\u8eab\u4f1a\u9500\u6bc1\u5b83\u3002\u56e0\u6b64\uff0c\u53ef\u4ee5\u5728beforedestroy\u4e2d\u53d6\u6d88\u5f02\u6b65\u64cd\u4f5c\uff0c\u91ca\u653e\u4efb\u4f55\u53ef\u80fd\u4fdd\u7559\u7684\u8d44\u6e90\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5b9e\u73b0\uff1a<\/p>\n<pre>beforeDestroy() {\n  this.players.forEach(player =&gt; {\n    player.player.stop()\n    player.player.remove()\n  })\n}<\/pre>\n<p><strong>\u5176\u4ed6\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>\u786e\u4fdd\u5728\u6240\u6709\u53ef\u80fd\u7684\u6267\u884c\u8def\u5f84\u4e2d\u90fd\u53d6\u6d88\u5f02\u6b65\u64cd\u4f5c\u3002<\/li>\n<li>\u907f\u514d\u5728\u7ec4\u4ef6\u9500\u6bc1\u540e\u4fdd\u7559\u5bf9dom\u5143\u7d20\u7684\u5f15\u7528\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002<\/li>\n<\/ul>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aVue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   Spring\u4e2d\u4f7f\u7528getBean\u83b7\u53d6\u5b9e\u4f8b\u65f6\uff0c\u4e3a\u4ec0\u4e48\u53cd\u5c04\u83b7\u53d6\u4e0d\u5230\u5c5e\u6027\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Vue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\u300aVue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f\u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01 vue\u4e2dbeforedestroy\u65b9\u6cd5\u6267\u884c\u5f02\u6b65\u4ee3\u7801\u62a5\u9519\uff1f \u5728vue\u7ec4\u4ef6\u7684beforedestroy\u94a9\u5b50\u4e2d\u6267\u884c\u5f02\u6b65\u4ee3\u7801\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u9519\u8bef\u3002\u5177\u4f53\u800c\u8a00\uff0c\u5f53\u5c1d\u8bd5\u64cd\u4f5cdom\u5143\u7d20\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4ee5\u4e0b\u9519\u8bef\uff1a typeerror: cannot read property &#8216;remove&#8217; of null \u5982\u4f55\u89e3\u51b3\uff1f 1. \u68c0\u67e5dom\u5143\u7d20\u662f\u5426\u5b58\u5728 \u786e\u4fdd\u5728\u8fdb\u884c\u4efb\u4f55dom\u64cd\u4f5c\u4e4b\u524d\uff0cdom\u5143\u7d20\u786e\u5b9e\u5b58\u5728\u3002\u5982\u679c\u5143\u7d20\u5df2\u88ab\u9500\u6bc1\uff0c\u5219\u65e0\u6cd5\u518d\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\u3002\u53ef\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u8fdb\u884c\u5224\u65ad\uff1a if (!document.getelementbyid(`video${index}`)) { resolve() return } 2. \u53d6\u6d88\u5728beforedestroy\u4e2d\u6267\u884c\u7684\u5f02\u6b65\u64cd\u4f5c beforedestroy\u94a9\u5b50\u8868\u793a\u7ec4\u4ef6\u5c06\u88ab\u9500\u6bc1\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c1d\u8bd5\u4fee\u6539dom\u5143\u7d20\u662f\u6ca1\u6709\u5fc5\u8981\u7684\uff0c\u56e0\u4e3avue\u672c\u8eab\u4f1a\u9500\u6bc1\u5b83\u3002\u56e0\u6b64\uff0c\u53ef\u4ee5\u5728beforedestroy\u4e2d\u53d6\u6d88\u5f02\u6b65\u64cd\u4f5c\uff0c\u91ca\u653e\u4efb\u4f55\u53ef\u80fd\u4fdd\u7559\u7684\u8d44\u6e90\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5b9e\u73b0\uff1a beforeDestroy() { this.players.forEach(player =&gt; { player.player.stop() player.player.remove() }) } \u5176\u4ed6\u6ce8\u610f\u4e8b\u9879\uff1a \u786e\u4fdd\u5728\u6240\u6709\u53ef\u80fd\u7684\u6267\u884c\u8def\u5f84\u4e2d\u90fd\u53d6\u6d88\u5f02\u6b65\u64cd\u4f5c\u3002 \u907f\u514d\u5728\u7ec4\u4ef6\u9500\u6bc1\u540e\u4fdd\u7559\u5bf9dom\u5143\u7d20\u7684\u5f15\u7528\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002 \u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aVue\u7ec4\u4ef6beforeDestroy\u94a9\u5b50\u4e2d\u5f02\u6b65\u4ee3\u7801\u64cd\u4f5cDOM\u62a5\u9519\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002 Spring\u4e2d\u4f7f\u7528getBean\u83b7\u53d6\u5b9e\u4f8b\u65f6\uff0c\u4e3a\u4ec0\u4e48\u53cd\u5c04\u83b7\u53d6\u4e0d\u5230\u5c5e\u6027\uff1f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-53563","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53563","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=53563"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53563\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}