{"id":10402,"date":"2023-04-05T16:06:41","date_gmt":"2023-04-05T08:06:41","guid":{"rendered":"http:\/\/123.57.164.21\/?p=10402"},"modified":"2023-04-05T16:21:46","modified_gmt":"2023-04-05T08:21:46","slug":"cookie%e3%80%81localstorage%e5%92%8csessionstorage%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=10402","title":{"rendered":"cookie\u3001localStorage\u548csessionStorage\u8be6\u89e3"},"content":{"rendered":"\n

\u4e00\u3001cookie<\/strong><\/p>\n\n\n\n

\n\n\n\n

cookie<\/a>\u662f\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7aef\u8fdb\u884c\u4f1a\u8bdd\u4f7f\u7528\u7684\u4e00\u4e2a\u80fd\u591f\u5728\u6d4f\u89c8\u5668\u672c\u5730\u5316\u5b58\u50a8\u7684\u6280\u672f\u3002\u7b80\u8a00\u4e4b\uff0ccookie\u662f\u670d\u52a1\u5668\u7aef\u53d1\u7ed9\u5ba2\u6237\u7aef\u7684\u6587\u672c\u6587\u4ef6,\u4f46\u53ea\u80fd\u50a8\u5b584kb\u7684\u6570\u636e;\u76ee\u7684\u662f\u7528\u4e8e\u8fa8\u522b\u7528\u6237\u8eab\u4efd\uff0c\u8bb0\u5f55\u8ddf\u8e2a\u8d2d\u7269\u8f66\u7684\u5546\u54c1\u4fe1\u606f\uff08\u5982\u6570\u91cf\uff09\u3001\u8bb0\u5f55\u7528\u6237\u8bbf\u95ee\u6b21\u6570\u7b49\u3002<\/p>\n\n\n\n

cookie\u7684\u4f5c\u7528\u8303\u56f4\u3002\u4e00\u822ccookie\u50a8\u5b58\u5728\u5185\u5b58\u91cc\uff0c\u82e5\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u5219\u50a8\u5b58\u5728\u786c\u76d8\u91cc\uff0c\u6d4f\u89c8\u5668\u9875\u9762\u5173\u95ed\u4e5f\u4e0d\u4f1a\u5931\u6548\uff0c\u76f4\u5230\u8bbe\u7f6e\u7684\u8fc7\u671f\u65f6\u95f4\u540e\u624d\u5931\u6548\u3002\u82e5\u4e0d\u8bbe\u7f6ecookie\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u5219\u6709\u6548\u671f\u4e3a\u6d4f\u89c8\u5668\u7a97\u53e3\u7684\u4f1a\u8bdd\u671f\u95f4\uff0c\u5173\u95ed\u6d4f\u89c8\u5668\u7a97\u53e3\u5c31\u5931\u6548\u3002<\/p>\n\n\n\n

cookie\u5982\u679c\u4e0d\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u5219\u8868\u793a\u8fd9\u4e2acookie\u751f\u547d\u5468\u671f\u4e3a\u6d4f\u89c8\u5668\u4f1a\u8bdd\u671f\u95f4\uff0c\u53ea\u8981\u5173\u95ed\u6d4f\u89c8\u5668\u7a97\u53e3\uff0ccookie\u5c31\u6d88\u5931\u4e86\u3002\u8fd9\u79cd\u751f\u547d\u671f\u4e3a\u6d4f\u89c8\u4f1a\u8bdd\u671f\u7684cookie\u88ab\u79f0\u4e3a\u4f1a\u8bddcookie\u3002\u4f1a\u8bddcookie\u4e00\u822c\u4e0d\u4fdd\u5b58\u5728\u786c\u76d8\u4e0a\u800c\u662f\u4fdd\u5b58\u5728\u5185\u5b58\u91cc\u3002<\/p>\n\n\n\n

\u5b9a\u7684\u8fc7\u671f\u65f6\u95f4\u3002\u5b58\u50a8\u5728\u786c\u76d8\u4e0a\u7684cookie\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u6d4f\u89c8\u5668\u8fdb\u7a0b\u95f4\u5171\u4eab\uff0c\u6bd4\u5982\u4e24\u4e2aIE\u7a97\u53e3\u3002\u800c\u5bf9\u4e8e\u4fdd\u5b58\u5728\u5185\u5b58\u7684cookie\uff0c\u4e0d\u540c\u7684\u6d4f\u89c8\u5668\u6709\u4e0d\u540c\u7684\u5904\u7406\u65b9\u5f0f\u3002<\/p>\n\n\n\n

cookie.setmaxage\u8bbe\u7f6e\u4e3a0\u65f6\uff0c\u4f1a\u9a6c\u4e0a\u5728\u6d4f\u89c8\u5668\u4e0a\u5220\u9664\u6307\u5b9a\u7684cookie<\/p>\n\n\n\n

cookie.setmaxage\u8bbe\u7f6e\u4e3a-1\u65f6\uff0c\u4ee3\u8868\u5173\u95ed\u5f53\u524d\u6d4f\u89c8\u5668\u5373\u5931\u6548\u3002<\/p>\n\n\n\n

\u5355\u4e2acookie\u7684\u5927\u5c0f\u9650\u5236\u4e00\u822c\u662f4K   \u6ce8\u610f\u662f\u9488\u5bf9\u5355\u4e2acookie<\/strong><\/p>\n\n\n\n

cookie\u5982\u679c\u4e0d\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u5219\u8868\u793a\u8fd9\u4e2acookie\u751f\u547d\u5468\u671f\u4e3a\u6d4f\u89c8\u5668\u4f1a\u8bdd\u671f\u95f4\uff0c\u53ea\u8981\u5173\u95ed\u6d4f\u89c8\u5668\u7a97\u53e3\uff0ccookie\u5c31\u6d88\u5931\u4e86\u3002\u8fd9\u79cd\u751f\u547d\u671f\u4e3a\u6d4f\u89c8\u4f1a\u8bdd\u671f\u7684cookie\u88ab\u79f0\u4e3a\u4f1a\u8bddcookie\u3002\u4f1a\u8bddcookie\u4e00\u822c\u4e0d\u4fdd\u5b58\u5728\u786c\u76d8\u4e0a\u800c\u662f\u4fdd\u5b58\u5728\u5185\u5b58\u91cc\u3002<\/p>\n\n\n\n

\u5982\u679c\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\uff0c\u6d4f\u89c8\u5668\u5c31\u4f1a\u628acookie\u4fdd\u5b58\u5230\u786c\u76d8\u4e0a
<\/p>\n\n\n\n

setCookie(name,value,expiredays){\/\/\u8bbe\u7f6e\u65f6\u95f4\u4e3a\u5929\u4e3a\u8fc7\u671f\u5355\u4f4d\n      var exdate=new Date();\n      exdate.setDate(exdate.getDate()+expiredays);\n      document.cookie=name + '=' + escape(value)+((expiredays==null) ? \"\" : \";expires=\"+exdate.toGMTString())\n    },<\/pre>\n\n\n\n
\u83b7\u53d6cookie<\/p>\n\n\n\n
      var start = document.cookie.indexOf(name+'=')\n      var end = document.cookie.indexOf(';',start)\n      if(end=-1){\n        end = document.cookie.length\n      }\n      return unescape(document.cookie.substring(start,end))\n    }\n<\/pre>\n\n\n\n
\u4e8c\u3001Web storage<\/strong><\/p>\n\n\n\n
\n\n\n\n
web Storeage\u7684\u6982\u5ff5\u548ccookie\u5f88\u76f8\u4f3c\uff0c\u533a\u522b\u5728\u4e8eweb Storage\u66f4\u591f\u50a8\u5b58\u5404\u591a\u7684\u6570\u636e\uff0ccookie\u7684\u5927\u5c0f\u662f\u53d7\u9650\u7684\uff0c\u5e76\u4e14\u6bcf\u6b21\u8bf7\u6c42\u4e00\u4e2a\u65b0\u7684\u9875\u9762\u7684\u65f6\u5019\u90fd\u4f1a\u88ab\u53d1\u9001\u8fc7\u53bb\uff0c\u65e0\u5f62\u4e2d\u6d6a\u8d39\u4e86\u5e26\u5bbd\uff0c\u53e6\u5916cookie\u8fd8\u9700\u8981\u6307\u5b9a\u4f5c\u7528\u57df\uff0c\u4e0d\u53ef\u8de8\u8d8a\u8c03\u7528\u3002\nHTML5\u589e\u52a0\u4e86\u4e24\u4e2a\u50a8\u5b58\u65b9\u5f0f\uff1alocalStorage\u548csessionStorage\n<\/pre>\n\n\n\n
1\u3001localStorage<\/strong><\/p>\n\n\n\n
localStorage\u7684\u751f\u547d\u5468\u671f\u662f\u6c38\u4e45\uff0c\u9664\u975e\u624b\u52a8\u53bb\u6e05\u9664\uff0c\u5426\u5219\u6c38\u8fdc\u90fd\u5b58\u5728\uff0c\u4ed6\u7684\u50a8\u5b58\u5927\u5c0f\u662f5MB\uff0c\u4ec5\u5728\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668\u4e0a\u50a8\u5b58\uff0c\u4e0d\u53c2\u4e0e\u670d\u52a1\u5668\u7684\u901a\u4fe1\u3002 <\/p>\n\n\n\n
\u6bcf\u4e00\u4e2a\u57df\u540d\u4e0b\u7684localStorage\u5bb9\u91cf\u4e00\u822c\u662f5M  \u6ce8\u610f\u8fd9\u4e2a5M\u662f\u9488\u5bf9\u4e00\u4e2a\u57df\u540d\u7684<\/strong><\/p>\n\n\n\n
localStorage\u7684\u4f7f\u7528\u65b9\u6cd5<\/p>\n\n\n\n
      \/\/\u8bbe\u7f6elocalStorage\u4fdd\u5b58\u5230\u672c\u5730\uff0c\u7b2c\u4e00\u4e2a\u4e3a\u53d8\u91cf\u540d\uff0c\u7b2c\u4e8c\u4e2a\u662f\u503c\n      localStorage.setItem('Author', 'Jane')\n      \/\/ \u83b7\u53d6\u6570\u636e\n      localStorage.getItem('Author')\n      \/\/ \u5220\u9664\u4fdd\u5b58\u7684\u6570\u636e\n      localStorage.removeItem('Author')\n      \/\/ \u6e05\u9664\u6240\u6709\u4fdd\u5b58\u7684\u6570\u636e\n      localStorage.clear()<\/pre>\n\n\n\n
\u901a\u5e38\u4ee5\u952e\u503c\u5bf9\u7684\u65b9\u5f0f\u50a8\u5b58\uff0c\u901a\u5e38\u50a8\u5b58\u4e3a\u5b57\u7b26\u4e32<\/strong><\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
2\u3001sessionStorage\u7684\u4f7f\u7528<\/strong><\/p>\n\n\n\n
 sessionStorage\u987e\u540d\u601d\u4e49\uff0c\u662f\u5728\u5f53\u524d\u4f1a\u8bdd\u4e0b\u6709\u6548\uff0c\u5f15\u5165\u4e86\u4e00\u4e2a\u201c\u6d4f\u89c8\u5668\u7a97\u53e3\u7684\u6982\u5ff5\u201d,sessionStorage\u662f\u5728\u540c\u6e90\u7684\u540c\u7a97\u53e3\u4e2d\uff0c\u59cb\u7ec8\u5b58\u5728\u7684\u6570\u636e\uff0c\u53ea\u8981\u6d4f\u89c8\u5668\u4e0d\u5173\u95ed\uff0c\u5373\u4f7f\u662f\u5237\u65b0\u6216\u8005\u8fdb\u5165\u540c\u6e90\u7684\u53e6\u4e00\u4e2a\u9875\u9762\uff0c\u6570\u636e\u4ecd\u5728\u3002\u540c\u65f6\u6253\u5f00\u201c\u72ec\u7acb\u201d\u7684\u7a97\u53e3\uff0c\u5373\u4f7f\u662f\u540c\u4e00\u4e2a\u9875\u9762\uff0csessionStorage\u7684\u5bf9\u8c61\u4e5f\u662f\u4e0d\u540c\u7684\u3002\u5173\u95ed\u7a97\u53e3\u540esessionStorage\u5c31\u4f1a\u88ab\u9500\u6bc1\u3002<\/p>\n\n\n\n
sessionStorage\u7684\u5b58\u50a8\u6570\u636e\u5927\u5c0f\u4e00\u822c\u90fd\u662f\uff1a5MB  \u4e0d\u77e5\u9053\u662f\u9488\u5bf9\u6240\u6709\u7684\u8fd8\u662f\u4e00\u4e2a\u4f1a\u8bdd\u7a97\u53e3<\/strong><\/p>\n\n\n\n
sessionStorage\u7684\u4f7f\u7528\u65b9\u6cd5<\/p>\n\n\n\n
      \/\/ \u8bbe\u7f6esessionStorage\u4fdd\u5b58\u5230\u672c\u5730\uff0c\u7b2c\u4e00\u4e2a\u4e3a\u53d8\u91cf\u540d\uff0c\u7b2c\u4e8c\u4e2a\u662f\u503c\n      sessionStorage.setItem('sessionName', 'John')\n      \/\/ \u83b7\u53d6\u6570\u636e\n      sessionStorage.getItem('sessionName')\n      \/\/ \u5220\u9664\u4fdd\u5b58\u7684\u6570\u636e\n      sessionStorage.removeItem('sessionName')\n      \/\/ \u6e05\u9664\u6240\u6709\u4fdd\u5b58\u7684\u6570\u636e\n      sessionStorage.clear()<\/pre>\n\n\n\n
\u6bd4\u5982\u8bbe\u7f6esessionStorage\u7684sessionName\u4e3aJohn<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
 \u70b9\u51fb\u6309\u94aechange\u65b9\u6cd5\u89e6\u53d1\uff0c\u5c06sessionName\u6539\u4e3adell\uff0c<\/p>\n\n\n\n
 change () {\n      sessionStorage.setItem('sessionName', 'dell')\n      this.sessionName = sessionStorage.getItem('sessionName')\n    }<\/pre>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
 \u518d\u6253\u5f00\u72ec\u7acb\u7684\u7a97\u53e3\uff0c\u4f1a\u53d1\u73b0sessionStorage\u7684\u6570\u503c\u4ecd\u662f\u521d\u59cb\u503c\uff0c\u8bf4\u660e\u4e0d\u540c\u7a97\u53e3\u7684sessionStorege\u7684\u5bf9\u8c61\u662f\u4e0d\u540c\u7684\uff0c\u800clocalStorage\u7684\u503c\u662f\u540c\u6b65\u6539\u53d8\u7684\u3002<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
 3\u3001\u590d\u6742\u6570\u636e\u7c7b\u578b\u50a8\u5b58<\/strong><\/p>\n\n\n\n
\u56e0\u4e3a\u4e0a\u9762\u8bf4\u8fc7\uff0cwebStorage\u662f\u4ee5\u5b57\u7b26\u4e32\u7684\u683c\u5f0f\u50a8\u5b58\u7684\uff0c\u6240\u4ee5\u4e0d\u80fd\u76f4\u63a5\u50a8\u5b58\u5bf9\u8c61\u548c\u6570\u7ec4\u7c7b\u578b\uff0c\u9700\u8981\u5148\u8f6c\u6362\u4e00\u4e0b\u683c\u5f0f\u518d\u8fdb\u884c\u50a8\u5b58\u3002 <\/p>\n\n\n\n
 \u4f7f\u7528JSON.stringify()<\/strong>\u5c06\u5bf9\u8c61\u8f6c\u6362\u6210\u5b57\u7b26\u4e32<\/p>\n\n\n\n
\u89e3\u6790\u7684\u65f6\u5019\uff0c\u518d\u4f7f\u7528JSON.parse()<\/strong>\u8f6c\u6362\u56de\u53bb\u4f7f\u7528\u3002<\/p>\n\n\n\n
4.Web Storage\u5e26\u6765\u7684\u597d\u5904<\/strong><\/p>\n\n\n\n