{"id":8291,"date":"2023-11-28T20:23:05","date_gmt":"2023-11-28T12:23:05","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=8291"},"modified":"2023-12-02T22:23:47","modified_gmt":"2023-12-02T14:23:47","slug":"vue-zhong-vue-de-keepalive-de-li-jie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/vue-zhong-vue-de-keepalive-de-li-jie\/","title":{"rendered":"Vue \u4e2d vue \u7684 keep-alive \u7684\u7406\u89e3\uff1f"},"content":{"rendered":"<p><code>&lt;keep-alive&gt;<\/code> \u662f Vue \u5185\u7f6e\u7684\u4e00\u4e2a\u62bd\u8c61\u7ec4\u4ef6\uff0c\u7528\u4e8e\u5c06\u52a8\u6001\u7ec4\u4ef6\u8fdb\u884c\u7f13\u5b58\uff0c\u4ee5\u907f\u514d\u5728\u7ec4\u4ef6\u5207\u6362\u65f6\u591a\u6b21\u521b\u5efa\u548c\u9500\u6bc1\u7ec4\u4ef6\uff0c\u63d0\u9ad8\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h3><a id=\"%E4%B8%BB%E8%A6%81%E4%BD%9C%E7%94%A8%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u4e3b\u8981\u4f5c\u7528\uff1a<\/h3>\n<ul>\n<li>\n<p><strong>\u7f13\u5b58\u7ec4\u4ef6\u72b6\u6001\uff1a<\/strong> <code>&lt;keep-alive&gt;<\/code> \u5305\u88f9\u7684\u52a8\u6001\u7ec4\u4ef6\u5728\u5207\u6362\u65f6\u4e0d\u4f1a\u88ab\u9500\u6bc1\uff0c\u800c\u662f\u88ab\u7f13\u5b58\u8d77\u6765\uff0c\u4fdd\u7559\u5176\u72b6\u6001\u3001\u6570\u636e\u548c\u751f\u547d\u5468\u671f\u72b6\u6001\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u590d\u7528\u5df2\u7f13\u5b58\u7ec4\u4ef6\uff1a<\/strong> \u5728\u7ec4\u4ef6\u88ab\u7f13\u5b58\u540e\uff0c\u82e5\u518d\u6b21\u88ab\u5207\u6362\u5230\u8be5\u7ec4\u4ef6\uff0c\u5219\u4f1a\u4ece\u7f13\u5b58\u4e2d\u76f4\u63a5\u62ff\u53d6\u5df2\u7ecf\u5b58\u5728\u7684\u7ec4\u4ef6\u5b9e\u4f8b\uff0c\u907f\u514d\u91cd\u65b0\u6e32\u67d3\u548c\u91cd\u65b0\u521b\u5efa\u3002<\/p>\n<\/li>\n<\/ul>\n<h3><a id=\"%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u4f7f\u7528\u65b9\u6cd5\uff1a<\/h3>\n<pre><code class=\"language-vue\">&lt;template&gt;\n  &lt;div&gt;\n    &lt;keep-alive&gt;\n      &lt;component :is=&quot;currentComponent&quot; key=&quot;uniqueKey&quot;&gt;&lt;\/component&gt;\n    &lt;\/keep-alive&gt;\n    &lt;button @click=&quot;toggleComponent&quot;&gt;Toggle Component&lt;\/button&gt;\n  &lt;\/div&gt;\n&lt;\/template&gt;\n\n&lt;script&gt;\nexport default {\n  data() {\n    return {\n      currentComponent: 'ComponentA'\n    };\n  },\n  methods: {\n    toggleComponent() {\n      this.currentComponent = this.currentComponent === 'ComponentA' ? 'ComponentB' : 'ComponentA';\n    }\n  }\n};\n&lt;\/script&gt;\n<\/code><\/pre>\n<ul>\n<li>\n<p>\u5728 <code>&lt;keep-alive&gt;<\/code> \u5185\u52a8\u6001\u6e32\u67d3\u7ec4\u4ef6\uff0c\u4f7f\u7528 <code>key<\/code> \u5c5e\u6027\u6765\u552f\u4e00\u6807\u8bc6\u6bcf\u4e2a\u7f13\u5b58\u7684\u7ec4\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>\u901a\u8fc7\u5207\u6362 <code>key<\/code> \u6765\u52a8\u6001\u5207\u6362\u7ec4\u4ef6\uff0c\u540c\u65f6 <code>&lt;keep-alive&gt;<\/code> \u4f1a\u6839\u636e\u4e0d\u540c\u7684 <code>key<\/code> \u7f13\u5b58\u548c\u590d\u7528\u76f8\u5e94\u7684\u7ec4\u4ef6\u3002<\/p>\n<\/li>\n<\/ul>\n<h3><a id=\"%E7%94%9F%E5%91%BD%E5%91%A8%E6%9C%9F%E9%92%A9%E5%AD%90%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u751f\u547d\u5468\u671f\u94a9\u5b50\uff1a<\/h3>\n<p><code>&lt;keep-alive&gt;<\/code> \u6709\u4e24\u4e2a\u989d\u5916\u7684\u751f\u547d\u5468\u671f\u94a9\u5b50\u51fd\u6570\uff1a<\/p>\n<ul>\n<li>\n<p><strong>activated\uff1a<\/strong> \u7f13\u5b58\u7684\u7ec4\u4ef6\u88ab\u6fc0\u6d3b\u65f6\u8c03\u7528\uff0c\u5982\u5207\u6362\u5230\u8be5\u7ec4\u4ef6\u65f6\u89e6\u53d1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>deactivated\uff1a<\/strong> \u7f13\u5b58\u7684\u7ec4\u4ef6\u88ab\u505c\u7528\u65f6\u8c03\u7528\uff0c\u5982\u5207\u6362\u51fa\u8be5\u7ec4\u4ef6\u65f6\u89e6\u53d1\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u8fd9\u4e24\u4e2a\u94a9\u5b50\u51fd\u6570\uff0c\u53ef\u4ee5\u5728\u7ec4\u4ef6\u7f13\u5b58\u548c\u6fc0\u6d3b\u65f6\u6267\u884c\u4e00\u4e9b\u7279\u5b9a\u7684\u903b\u8f91\u64cd\u4f5c\u3002<\/p>\n<p><code>&lt;keep-alive&gt;<\/code> \u662f\u7528\u4e8e\u4f18\u5316\u9875\u9762\u6027\u80fd\u7684\u5de5\u5177\uff0c\u7279\u522b\u9002\u7528\u4e8e\u90a3\u4e9b\u5728\u5207\u6362\u65f6\u72b6\u6001\u53d8\u5316\u4e0d\u5927\u7684\u7ec4\u4ef6\uff0c\u907f\u514d\u4e86\u91cd\u590d\u7684\u6e32\u67d3\u548c\u521d\u59cb\u5316\u8fc7\u7a0b\uff0c\u63d0\u9ad8\u4e86\u5e94\u7528\u7684\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&lt;keep-alive&gt; \u662f Vue \u5185\u7f6e\u7684\u4e00\u4e2a\u62bd\u8c61\u7ec4\u4ef6\uff0c\u7528\u4e8e\u5c06\u52a8\u6001\u7ec4\u4ef6\u8fdb\u884c\u7f13\u5b58\uff0c\u4ee5\u907f\u514d\u5728\u7ec4\u4ef6\u5207\u6362 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-8291","post","type-post","status-publish","format-standard","hentry","category-vue"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8291"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8291\/revisions"}],"predecessor-version":[{"id":14085,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8291\/revisions\/14085"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8291"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}