{"id":204410,"date":"2020-11-13T08:53:59","date_gmt":"2020-11-13T00:53:59","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=204410"},"modified":"2020-11-02T10:13:26","modified_gmt":"2020-11-02T02:13:26","slug":"sessionstorage-localstorage","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/sessionstorage-localstorage.html","title":{"rendered":"\u539f\u6765\u5b83\u624d\u662f\u771f\u6b63\u7684\u7f13\u5b58\u673a\u5236"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>\u524d\u9762\u6211\u4eec\u5b66\u4e60\u4e86 cookie \u548c sessionStorage\uff0c\u4ed6\u4eec\u90fd\u5177\u6709\u5b58\u50a8\u529f\u80fd\uff0c\u4f46\u5404\u6709\u5404\u7684\u7528\u9014\u3002\u4eca\u5929\u6211\u4eec\u5b66\u4e60 LocalStorage\uff0c\u5b83\u624d\u662f\u771f\u6b63\u7684\u7f13\u5b58\u673a\u5236\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u901a\u5e38\u8bf4\u7684\u78c1\u76d8\u7f13\u5b58\uff0c\u4ed6\u53ef\u4ee5\u505a\u5230\u5728\u8fd9\u4e9b\u573a\u666f\u4e0b\u6570\u636e\u4e22\u5931\uff1a<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2020\/10\/99.jpg\" alt=\"\" width=\"600\" height=\"484\" class=\"alignnone size-full wp-image-204414\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2020\/10\/99.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2020\/10\/99-300x242.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><br \/>\n\u524d\u9762\u6211\u4eec\u5b66\u4e60\u4e86 cookie \u548c sessionStorage\uff0c\u4ed6\u4eec\u90fd\u5177\u6709\u5b58\u50a8\u529f\u80fd\uff0c\u4f46\u5404\u6709\u5404\u7684\u7528\u9014\u3002\u4eca\u5929\u6211\u4eec\u5b66\u4e60 LocalStorage\uff0c\u5b83\u624d\u662f\u771f\u6b63\u7684\u7f13\u5b58\u673a\u5236\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u901a\u5e38\u8bf4\u7684\u78c1\u76d8\u7f13\u5b58\uff0c\u4ed6\u53ef\u4ee5\u505a\u5230\u5728\u8fd9\u4e9b\u573a\u666f\u4e0b\u6570\u636e\u4e22\u5931\uff1a<\/p>\n<p>\u5237\u65b0\u9875\u9762;<br \/>\n\u5207\u6362 tab;<br \/>\n\u5173\u95ed\u6d4f\u89c8\u5668;<br \/>\n\u5b83\u548c sessionStorage \u4e00\u6837\uff0c\u90fd\u662f Storage \u7684\u5b9e\u4f8b\u3002\u8981\u8bbf\u95ee\u540c\u4e00 localStorage \u7684\u6570\u636e\u65f6\uff0c\u8981\u4fdd\u8bc1\u534f\u8bae\u3001\u57df\u540d\u548c\u7aef\u53e3\u90fd\u4e00\u81f4\u624d\u80fd\u591f\u8bbf\u95ee\u3002<\/p>\n<p>\u5b83\u4e0e sessionStorage \u4f7f\u7528\u4e00\u81f4\uff1a<\/p>\n<pre>\r\n\/\/ \u589e\u52a0\u4e00\u6761\u6570\u636e \r\nlocalStorage.setItem('name', '\u516c\u4f17\u53f7\u7d20\u71d5'); \r\nlocalStorage.setItem('logo', '\u524d\u7aef\u5c0f\u8bfe\uff0c \u5e2e\u52a9 10W \u4eba\u5165\u95e8\u5e76\u8fdb\u9636\u524d\u7aef'); \r\n \r\n\/\/ \u83b7\u53d6\u4e00\u6761\u6570\u636e\uff0ckey \u4e3a name \r\nconsole.log(localStorage.getItem('name')); \r\n\/\/ \u83b7\u53d6\u7b2c\u4e00\u6761\u6570\u636e\u7684 key \r\nconsole.log(localStorage.key(0)); \r\n\/\/ \u5220\u9664\u4e00\u6761\u6570\u636e\uff0ckey \u4e3a logo \r\nlocalStorage.removeItem('logo') \r\n\u4fdd\u5b58\u5728 localStorage \u7684\u6570\u636e\u4e0d\u4f1a\u81ea\u52a8\u6e05\u9664\uff0c\u9664\u975e\u901a\u8fc7\u4ee3\u7801\u6e05\u9664\uff0c\u6216\u8005\u6e05\u9664\u6d4f\u89c8\u5668\u7684\u7f13\u5b58\u3002\u4f46\u662f\u5b83\u53c8\u6709\u9650\u5236\uff0c\u6bd4\u5982\u6709\u4e9b\u6d4f\u89c8\u5668\u9650\u5236\u6700\u5927\u53ea\u80fd\u5b58\u50a8 5MB\u3002\u4f60\u53ef\u4ee5\u5728\u6d4f\u89c8\u5668\u8c03\u8bd5\u6a21\u5f0f(Inspect)\u4e0b\u6253\u5f00\u7684 Application -> Local Storage \u4e2d\u67e5\u770b\u5b58\u50a8\u7684\u5185\u5bb9\uff0c\u4e5f\u53ef\u4ee5\u4fee\u6539\u3002\r\n<\/pre>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u76d1\u542c\u4e8b\u4ef6<\/strong><\/div>\n<p>\u65e0\u8bba\u662f sessionStorage \u8fd8\u662f localStorage\uff0c\u5f53\u6570\u636e\u53d1\u751f\u53d8\u5316\u65f6\u90fd\u80fd\u591f\u76d1\u542c\u5230\uff0c\u6211\u4eec\u4ee5 localStorage \u4e3a\u4f8b\u6765\u76d1\u542c\u4e00\u4e0b Storage \u7684\u4e8b\u4ef6\u3002\u9700\u8981\u6ce8\u610f\u4e00\u70b9\uff0c\u8fd9\u79cd\u4e8b\u4ef6\u76d1\u542c\u5728\u540c\u4e00\u9875\u9762\u5e76\u4e0d\u4f1a\u76d1\u542c\u5230\u4e8b\u4ef6\u3002\u6bd4\u5982\uff1a<\/p>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>A\u9875\u9762\uff1a<\/strong><\/span><\/div>\n<p>\u8bbf\u95ee http:\/\/localhost:2081\/cookie\/cookie.html \uff0c\u5982\u679c\u5728\u8fd9\u4e2a\u9875\u9762\u63a5\u6536\u76d1\u542c\u5230\u4e8b\u4ef6\uff0c\u5fc5\u987b\u5728\u53e6\u4e00\u4e2a\u540c\u4e00\u5730\u5740\u7684\u9875\u9762\u8fdb\u884c\u4fee\u6539 storage \u624d\u80fd\u89e6\u53d1\u3002\u5728\u5f53\u524d\u9875\u9762\u4fee\u6539 localStorage \u5373\u4f7f\u9875\u9762\u4e2d\u52a0\u4e86\u76d1\u542c\u4e8b\u4ef6\uff0c\u4e5f\u4e0d\u4f1a\u63a5\u6536\u5230\u4e8b\u4ef6\u3002\u5728 A \u9875\u9762\u4e2d\u6dfb\u52a0\u76d1\u542c\u4e8b\u4ef6\uff1a<\/p>\n<pre>\r\nwindow.addEventListener('storage', event => { \r\n    alert('change'); \r\n    console.log(event); \r\n}); \r\n<\/pre>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>B\u9875\u9762\uff1a<\/strong><\/span><\/div>\n<p>\u8bbf\u95ee http:\/\/localhost:2081\/cookie\/cookie.html \uff0c\u5982\u679c\u5bf9 localStorage \u8fdb\u884c\u4e86\u4fee\u6539\uff0cA\u9875\u9762\u5c06\u6536\u5230 storage \u88ab\u4fee\u6539\u7684\u4e8b\u4ef6\u3002<\/p>\n<pre>\r\nlocalStorage.setItem('name', '\u516c\u4f17\u53f7\u7d20\u71d5'); \r\nlocalStorage.clear(); \r\nlocalStorage.removeItem('name'); \r\n<\/pre>\n<p>\u540c\u6837\uff0c\u76d1\u542c\u4e8b\u4ef6\u4e5f\u9002\u7528\u4e8e sessionStorage\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u9762\u6211\u4eec\u5b66\u4e60\u4e86 cookie \u548c sessionStorage\uff0c\u4ed6\u4eec\u90fd\u5177\u6709\u5b58\u50a8\u529f\u80fd\uff0c\u4f46\u5404\u6709\u5404\u7684\u7528\u9014\u3002\u4eca\u5929\u6211\u4eec\u5b66 [&hellip;]<\/p>\n","protected":false},"author":1898,"featured_media":204412,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[615],"class_list":["post-204410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread","tag-sessionstorage"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/204410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1898"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=204410"}],"version-history":[{"count":4,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/204410\/revisions"}],"predecessor-version":[{"id":204416,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/204410\/revisions\/204416"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/204412"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=204410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=204410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=204410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}