{"id":1023,"date":"2023-03-12T09:33:28","date_gmt":"2023-03-12T01:33:28","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1023"},"modified":"2023-04-29T13:14:09","modified_gmt":"2023-04-29T05:14:09","slug":"resolve-issue-of-vuex-clearing-state-data-after-page-refresh","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/12\/resolve-issue-of-vuex-clearing-state-data-after-page-refresh\/","title":{"rendered":"\u89e3\u51b3Vuex\u5728\u9875\u9762\u5237\u65b0\u540estate\u6570\u636e\u88ab\u6e05\u9664\u7684\u95ee\u9898"},"content":{"rendered":"<h2>\u4ea7\u751f\u539f\u56e0<\/h2>\n<p>JavaScript\u4ee3\u7801\u662f\u8fd0\u884c\u5728\u5185\u5b58\u4e2d\u7684\uff0c\u4ee3\u7801\u8fd0\u884c\u65f6\u7684\u6240\u6709\u53d8\u91cf\u3001\u51fd\u6570\uff0c\u4e5f\u90fd\u662f\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\u7684\u3002\u5237\u65b0\u9875\u9762\uff0c\u4ee5\u524d\u7533\u8bf7\u7684\u5185\u5b58\u88ab\u91ca\u653e\uff0c\u91cd\u65b0\u52a0\u8f7d\u811a\u672c\u4ee3\u7801\uff0c\u53d8\u91cf\u91cd\u65b0\u8d4b\u503c\uff0c\u6240\u4ee5\u8fd9\u4e9b\u6570\u636e\u8981\u60f3\u5b58\u50a8\u5c31\u5fc5\u987b\u5b58\u50a8\u5728\u5916\u90e8\uff0c\u4f8b\u5982\uff1aLocal Storage\u3001Session Storage\u3001IndexDB\u7b49\u3002\u8fd9\u4e9b\u90fd\u662f\u6d4f\u89c8\u5668\u63d0\u4f9b\u7684API\uff0c\u8ba9\u4f60\u53ef\u4ee5\u5c06\u6570\u636e\u5b58\u50a8\u5728\u786c\u76d8\u4e0a\uff0c\u505a\u6301\u4e45\u5316\u5b58\u50a8\u3002<\/p>\n<p><!-- more --><\/p>\n<h2>\u89e3\u51b3\u529e\u6cd5<\/h2>\n<p>HTML5\u63d0\u4f9b\u4e86\u4e24\u79cd\u5728\u5ba2\u6237\u7aef\u5b58\u50a8\u6570\u636e\u7684\u65b0\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li>localStorage\uff1a\u6ca1\u6709\u65f6\u95f4\u9650\u5236\u7684\u6570\u636e\u5b58\u50a8<\/li>\n<li>sessionStorage\uff1a\u9488\u5bf9\u4e00\u4e2asession\u7684\u6570\u636e\u5b58\u50a8<\/li>\n<\/ul>\n<blockquote>\n<p>\u6b64\u524d\uff0c\u8fd9\u4e9b\u90fd\u662f\u7531Cookie\u5b8c\u6210\u7684\uff0c\u4f46\u662fCookie\u4e0d\u9002\u5408\u5927\u91cf\u6570\u636e\u7684\u5b58\u50a8\uff0c\u56e0\u4e3a\u5b83\u4eec\u7531\u6bcf\u4e2a\u5bf9\u670d\u52a1\u5668\u7684\u8bf7\u6c42\u6765\u4f20\u9012\uff0c\u8fd9\u4f7f\u5f97Cookie\u901f\u5ea6\u5f88\u6162\u800c\u4e14\u6548\u7387\u4e5f\u4e0d\u9ad8<\/p>\n<\/blockquote>\n<p>localStorage\u6ca1\u6709\u65f6\u95f4\u671f\u9650\uff0c\u9664\u975e\u5c06\u5b83\u79fb\u9664\uff0csessionStorage\u5373\u4f1a\u8bdd\uff0c\u5f53\u6d4f\u89c8\u5668\u5173\u95ed\u65f6\u4f1a\u8bdd\u7ed3\u675f\uff0c\u6709\u65f6\u95f4\u671f\u9650<\/p>\n<p>\u8fd9\u91cc\u4f7f\u7528sessionStorage\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662fVuex\u4e2d\u7684\u53d8\u91cf\u662f\u54cd\u5e94\u5f0f\u7684\uff0c\u800csessionStorage\u4e0d\u662f\uff0c\u5f53\u4f60\u6539\u53d8Vuex\u4e2d\u7684\u72b6\u6001\uff0c\u7ec4\u4ef6\u4f1a\u76d1\u6d4b\u5230\u6539\u53d8\uff0c\u800csessionStorage\u4e0d\u4f1a\uff0c\u9875\u9762\u9700\u8981\u91cd\u65b0\u5237\u65b0\u624d\u53ef\u4ee5\u770b\u5230\u53d8\u5316\uff0c\u6240\u4ee5\u5e94\u8ba9Vuex\u4e2d\u7684\u72b6\u6001\u4ecesessionStorage\u4e2d\u5f97\u5230\uff0c\u8fd9\u6837\u7ec4\u4ef6\u5c31\u53ef\u4ee5\u54cd\u5e94\u5f0f\u7684\u53d8\u5316<\/p>\n<h2>\u5177\u4f53\u5b9e\u73b0<\/h2>\n<p>\u5e94\u7528\u80cc\u666f\u662f\u7528\u6237\u767b\u5165\u540e\u4fdd\u5b58\u72b6\u6001\uff0c\u9000\u51fa\u540e\u79fb\u9664\u72b6\u6001<\/p>\n<p>mutations.js<\/p>\n<pre><code class=\"language-javascript\">ADD_LOGIN_USER (state, data) {  \/\/\u767b\u5165\uff0c\u4fdd\u5b58\u72b6\u6001\n  sessionStorage.setItem(&quot;username&quot;, data);  \/\/\u6dfb\u52a0\u5230sessionStorage\n  sessionStorage.setItem(&quot;isLogin&quot;, true);\n  state.username = data,  \/\/\u540c\u6b65\u7684\u6539\u53d8store\u4e2d\u7684\u72b6\u6001\n  state.isLogin = true\n},\nSIGN_OUT (state) {  \/\/\u9000\u51fa\uff0c\u5220\u9664\u72b6\u6001\n  sessionStorage.removeItem(&quot;username&quot;);  \/\/\u79fb\u9664sessionStorage\n  sessionStorage.removeItem(&quot;isLogin&quot;);\n  state.username = &#039;&#039;  \/\/\u540c\u6b65\u7684\u6539\u53d8story\u4e2d\u7684\u72b6\u6001\n  state.isLogin=false\n}<\/code><\/pre>\n<p>getters.js<\/p>\n<pre><code class=\"language-javascript\">isLogin (state) {\n  if (!state.isLogin) {    \n    state.isLogin = sessionStorage.getItem(&#039;isLogin&#039;);  \/\/\u4ecesessionStorage\u4e2d\u8bfb\u53d6\u72b6\u6001\n    state.username = sessionStorage.getItem(&#039;username&#039;);\n  }\n  return state.username\n}<\/code><\/pre>\n<p>\u603b\u4f53\u7684\u5b9e\u73b0\u601d\u8def\u662f\u8ba9Vuex\u4e2d\u7684\u72b6\u6001\u548csessionStorage\u4fdd\u6301\u4e00\u81f4\uff08\u4ecesessionStorage\u53d6\u503c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ea7\u751f\u539f\u56e0 JavaScript\u4ee3\u7801\u662f\u8fd0\u884c\u5728\u5185\u5b58\u4e2d\u7684\uff0c\u4ee3\u7801\u8fd0\u884c\u65f6\u7684\u6240\u6709\u53d8\u91cf\u3001\u51fd\u6570\uff0c\u4e5f\u90fd\u662f\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\u7684\u3002\u5237\u65b0\u9875\u9762 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[279],"class_list":["post-1023","post","type-post","status-publish","format-standard","hentry","category-vue","tag-vuex"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1023"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1023\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}