{"id":315668,"date":"2024-05-21T00:06:34","date_gmt":"2024-05-20T16:06:34","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/315668.html"},"modified":"2024-05-21T00:06:43","modified_gmt":"2024-05-20T16:06:43","slug":"%e5%89%8d%e7%ab%af-javascript-%e5%ad%98%e5%82%a8%e6%95%b0%e6%8d%ae%e7%9a%84%e6%96%b9%e5%bc%8f%e6%9c%89%e5%93%aa%e4%ba%9b-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/315668.html","title":{"rendered":"\u524d\u7aef javascript \u5b58\u50a8\u6570\u636e\u7684\u65b9\u5f0f\u6709\u54ea\u4e9b"},"content":{"rendered":"

\"\u524d\u7aef<\/p>\n

\u524d\u7aefJavaScript\u5b58\u50a8\u6570\u636e\u7684\u65b9\u5f0f\u4e3b\u8981\u5305\u62ec\uff1alocalStorage<\/code>\u3001sessionStorage<\/code>\u3001cookies<\/code>\u3001IndexedDB<\/code>\u3002\u8fd9\u4e9b\u6280\u672f\u4f7f\u5f97\u524d\u7aef\u5e94\u7528\u80fd\u591f\u5728\u7528\u6237\u7684\u6d4f\u89c8\u5668\u4e2d\u5b58\u50a8\u6570\u636e\uff0c\u589e\u5f3a\u4e86\u7f51\u9875\u7684\u4ea4\u4e92\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/strong> localStorage<\/strong> \u548c sessionStorage \u76f8\u4f3c\uff0c\u4f46\u5b83\u5177\u6709\u65e0\u671f\u9650\u7684\u5b58\u50a8\u65f6\u95f4\uff0c\u76f4\u5230\u4e3b\u52a8\u6e05\u9664\uff0c\u8fd9\u4f7f\u5f97\u5b83\u9002\u5408\u5b58\u50a8\u90a3\u4e9b\u4e0d\u968f\u6d4f\u89c8\u4f1a\u8bdd\u7ed3\u675f\u800c\u6d88\u5931\u7684\u6570\u636e\u3002<\/p>\n<\/p>\n

\u6bcf\u79cd\u5b58\u50a8\u65b9\u5f0f\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f7f\u7528\u573a\u666f\u548c\u9650\u5236\uff0c\u4e86\u89e3\u5b83\u4eec\u80fd\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u9009\u62e9\u6700\u9002\u5408\u5176\u9879\u76ee\u9700\u6c42\u7684\u5b58\u50a8\u65b9\u6848\u3002<\/p>\n<\/p>\n

\u4e00\u3001LOCALSTORAGE<\/h3>\n<\/p>\n

LocalStorage\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5728\u6d4f\u89c8\u5668\u4e2d\u5b58\u50a8\u6570\u636e\u7684\u65b9\u5f0f\uff0c\u5b83\u80fd\u591f\u5b58\u50a8\u5927\u91cf\u6570\u636e\u800c\u4e0d\u5f71\u54cd\u7f51\u7ad9\u7684\u6027\u80fd\u3002\u6570\u636e\u5728\u9875\u9762\u52a0\u8f7d\u548c\u5173\u95ed\u540e\u4f9d\u7136\u80fd\u591f\u4fdd\u7559\uff0c\u76f4\u5230\u88ab\u660e\u786e\u5220\u9664\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u4fdd\u5b58\u7528\u6237\u4fe1\u606f\u3001\u4e3b\u9898\u504f\u597d\u8bbe\u7f6e\u7b49\u3002<\/p>\n<\/p>\n

    \n
  • \u4f18\u70b9<\/strong>\uff1a\u5bb9\u91cf\u6bd4Cookies\u5927\uff0c\u53ef\u4ee5\u5b58\u50a85MB\u5de6\u53f3\u7684\u6570\u636e\uff1b\u5bf9\u4e8e\u5b58\u50a8\u4e00\u4e9b\u4e0d\u7ecf\u5e38\u53d8\u5316\u7684\u5927\u91cf\u6570\u636e\uff0c\u5b83\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u9009\u62e9\u3002\u4f7f\u7528\u4e5f\u975e\u5e38\u7b80\u5355\uff0c\u63d0\u4f9b\u4e86\u7b80\u6d01\u7684API\u6765\u8fdb\u884c\u6570\u636e\u7684\u589e\u5220\u67e5\u6539\u3002<\/li>\n
  • \u9650\u5236<\/strong>\uff1a\u53ea\u80fd\u5b58\u50a8\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u6570\u636e\uff0c\u82e5\u9700\u8981\u5b58\u50a8\u5bf9\u8c61\uff0c\u9700\u5148\u5c06\u5bf9\u8c61\u8f6c\u6362\u4e3aJSON\u5b57\u7b26\u4e32\u3002\u6b64\u5916\uff0c\u5b83\u4ec5\u80fd\u5728\u540c\u4e00\u4e2a\u57df\u540d\u4e0b\u7684\u9875\u9762\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u3002<\/li>\n<\/ul>\n

    \u4e8c\u3001SESSIONSTORAGE<\/h3>\n<\/p>\n

    SessionStorage\u4e0eLocalStorage\u975e\u5e38\u76f8\u4f3c\uff0c\u4f46\u5b83\u7684\u5b58\u50a8\u751f\u547d\u5468\u671f\u4e0e\u6d4f\u89c8\u5668\u7a97\u53e3\u7684\u4f1a\u8bdd\u671f\u76f8\u5173\u3002\u5f53\u7528\u6237\u5173\u95ed\u6d4f\u89c8\u5668\u7a97\u53e3\u540e\uff0c\u5b58\u50a8\u5728SessionStorage\u4e2d\u7684\u6570\u636e\u4f1a\u88ab\u6e05\u7a7a\u3002<\/p>\n<\/p>\n

      \n
    • \u4f18\u70b9<\/strong>\uff1a\u975e\u5e38\u9002\u5408\u5b58\u50a8\u90a3\u4e9b\u4ec5\u5728\u5355\u4e2a\u4f1a\u8bdd\u4e2d\u9700\u8981\u4fdd\u6301\u7684\u6570\u636e\uff0c\u4f8b\u5982\u7528\u6237\u7684\u767b\u5f55\u72b6\u6001\u6216\u8d2d\u7269\u8f66\u4fe1\u606f\u3002<\/li>\n
    • \u9650\u5236<\/strong>\uff1a\u8ddfLocalStorage\u4e00\u6837\uff0c\u5b83\u4e5f\u53ea\u80fd\u5b58\u50a8\u5b57\u7b26\u4e32\u6570\u636e\uff0c\u800c\u4e14\u662f\u4e34\u65f6\u6027\u7684\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u3002<\/li>\n<\/ul>\n

      \u4e09\u3001COOKIES<\/h3>\n<\/p>\n

      Cookies\u63d0\u4f9b\u4e86\u4e00\u79cd\u4fdd\u5b58\u7528\u6237\u4fe1\u606f\u7684\u65b9\u5f0f\uff0c\u7ecf\u5e38\u7528\u4e8e\u8bc6\u522b\u7528\u6237\u3002Cookies\u6570\u636e\u5728\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u6765\u56de\u4f20\u9012\uff0c\u975e\u5e38\u9002\u5408\u6267\u884c\u7528\u6237\u8ffd\u8e2a\u548c\u4f1a\u8bdd\u7ba1\u7406\u3002<\/p>\n<\/p>\n

        \n
      • \u4f18\u70b9<\/strong>\uff1a\u7531\u4e8eCookies\u7684\u6570\u636e\u4f1a\u81ea\u52a8\u9644\u52a0\u5230\u6bcf\u4e2aHTTP\u8bf7\u6c42\u4e2d\uff0c\u56e0\u6b64\u975e\u5e38\u9002\u5408\u505a\u8eab\u4efd\u9a8c\u8bc1\u76f8\u5173\u7684\u6570\u636e\u5b58\u50a8\u3002<\/li>\n
      • \u9650\u5236<\/strong>\uff1aCookies\u7684\u5927\u5c0f\u9650\u5236\u8f83\u5c0f\uff0c\u4e00\u822c\u4e3a4KB\u3002\u800c\u4e14\u6bcf\u6b21HTTP\u8bf7\u6c42\u90fd\u4f1a\u643a\u5e26Cookies\u4fe1\u606f\uff0c\u5982\u679cCookies\u8fc7\u5927\u4f1a\u5f71\u54cd\u7f51\u7ad9\u6027\u80fd\u3002<\/li>\n<\/ul>\n

        \u56db\u3001INDEXEDDB<\/h3>\n<\/p>\n

        IndexedDB\u662f\u8fd0\u884c\u5728\u6d4f\u89c8\u5668\u4e2d\u7684\u4e00\u79cd\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u3002\u76f8\u8f83\u4e8e\u4e0a\u8ff0\u51e0\u79cd\u5b58\u50a8\u65b9\u5f0f\uff0cIndexedDB\u80fd\u591f\u5b58\u50a8\u66f4\u5927\u91cf\u7684\u6570\u636e\uff0c\u5e76\u4e14\u652f\u6301\u66f4\u590d\u6742\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n<\/p>\n

          \n
        • \u4f18\u70b9<\/strong>\uff1a\u53ef\u4ee5\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff0c\u5305\u62ec\u6587\u4ef6\/Blob\u3002\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684API\u652f\u6301\u9ad8\u6548\u7684\u6570\u636e\u68c0\u7d22\u548c\u64cd\u4f5c\uff0c\u9002\u5408\u5b58\u50a8\u5927\u91cf\u6570\u636e\u6216\u9700\u8981\u8fdb\u884c\u9891\u7e41\u64cd\u4f5c\u7684\u5e94\u7528\u573a\u666f\u3002<\/li>\n
        • \u9650\u5236<\/strong>\uff1a\u7531\u4e8eIndexedDB\u7684API\u8f83\u4e3a\u590d\u6742\uff0c\u5bf9\u5f00\u53d1\u8005\u7684\u8981\u6c42\u8f83\u9ad8\uff0c\u5b66\u4e60\u66f2\u7ebf\u6bd4\u8f83\u9661\u5ced\u3002<\/li>\n<\/ul>\n

          \u4e86\u89e3\u8fd9\u4e9b\u5b58\u50a8\u65b9\u5f0f\u7684\u7279\u70b9\u548c\u9002\u7528\u573a\u666f\uff0c\u5bf9\u4e8e\u5f00\u53d1\u5bcc\u4ea4\u4e92\u6027\u7684web\u5e94\u7528\u81f3\u5173\u91cd\u8981\u3002\u6839\u636e\u5e94\u7528\u7684\u7279\u70b9\u548c\u9700\u6c42\uff0c\u9009\u7528\u6700\u9002\u5408\u7684\u5b58\u50a8\u65b9\u6848\uff0c\u4e0d\u4ec5\u80fd\u4f18\u5316\u7528\u6237\u4f53\u9a8c\uff0c\u8fd8\u4f1a\u63d0\u5347\u5e94\u7528\u7684\u6027\u80fd\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n

          \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

          1. JavaScript\u5b58\u50a8\u6570\u636e\u7684\u65b9\u5f0f\u6709\u54ea\u4e9b\uff1f<\/strong><\/p>\n

            \n
          • \n

            \u4f7f\u7528Cookies\u5b58\u50a8\u6570\u636e\uff1a<\/strong> Cookies\u662f\u5c0f\u578b\u7684\u6587\u672c\u6587\u4ef6\uff0c\u53ef\u4ee5\u5b58\u50a8\u5728\u7528\u6237\u7684\u6d4f\u89c8\u5668\u4e2d\u3002\u901a\u8fc7\u4f7f\u7528JavaScript\u7684document.cookie\u5bf9\u8c61\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u521b\u5efa\u3001\u8bfb\u53d6\u548c\u5220\u9664Cookies\uff0c\u4ee5\u4fbf\u5728\u6d4f\u89c8\u5668\u4f1a\u8bdd\u4e4b\u95f4\u6301\u4e45\u5316\u5b58\u50a8\u6570\u636e\u3002<\/p>\n<\/li>\n

          • \n

            \u4f7f\u7528Web\u5b58\u50a8API\uff08Web Storage API\uff09\uff1a<\/strong> Web\u5b58\u50a8API\u63d0\u4f9b\u4e86\u4e24\u4e2a\u5bf9\u8c61\u6765\u5b58\u50a8\u6570\u636e\uff1alocalStorage\u548csessionStorage\u3002localStorage\u53ef\u4ee5\u6301\u4e45\u5316\u5b58\u50a8\u6570\u636e\uff0c\u5373\u4f7f\u7528\u6237\u5173\u95ed\u6d4f\u89c8\u5668\u4e5f\u4e0d\u4f1a\u4e22\u5931\u6570\u636e\uff1b\u800csessionStorage\u53ea\u5728\u5f53\u524d\u4f1a\u8bdd\u671f\u95f4\uff08\u5373\u5173\u95ed\u6807\u7b7e\u9875\u6216\u6d4f\u89c8\u5668\u540e\uff09\u6709\u6548\uff0c\u9002\u7528\u4e8e\u4e34\u65f6\u5b58\u50a8\u6570\u636e\u3002<\/p>\n<\/li>\n

          • \n

            \u4f7f\u7528IndexedDB\uff1a<\/strong> IndexedDB\u662f\u7f51\u9875\u6d4f\u89c8\u5668\u4e2d\u7684\u4e00\u79cd\u6570\u636e\u5e93\u89e3\u51b3\u65b9\u6848\uff0c\u4f7f\u7528JavaScript\u8fdb\u884c\u64cd\u4f5c\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53ef\u4ee5\u5b58\u50a8\u548c\u68c0\u7d22\u5927\u91cf\u7ed3\u6784\u5316\u6570\u636e\u7684\u673a\u5236\uff0c\u652f\u6301\u4e8b\u52a1\u548c\u7d22\u5f15\uff0c\u53ef\u4ee5\u5728\u6d4f\u89c8\u5668\u79bb\u7ebf\u65f6\u8bbf\u95ee\u6570\u636e\u3002<\/p>\n<\/li>\n

          • \n

            \u4f7f\u7528WebSQL\uff1a<\/strong> WebSQL\u662f\u4e00\u79cd\u5229\u7528SQL\u8bed\u6cd5\u64cd\u4f5c\u6570\u636e\u5e93\u7684API\uff0c\u53ef\u4ee5\u5728\u672c\u5730\u6d4f\u89c8\u5668\u4e2d\u521b\u5efa\u548c\u7ba1\u7406\u6570\u636e\u5e93\u3002\u867d\u7136WebSQL\u5728HTML5\u89c4\u8303\u4e2d\u88ab\u5e9f\u5f03\uff0c\u4f46\u5728\u67d0\u4e9b\u6d4f\u89c8\u5668\u4e2d\u4ecd\u7136\u53ef\u7528\u3002<\/p>\n<\/li>\n

          • \n

            \u4f7f\u7528IndexedDB\u3001Web SQL\u548cWeb Storage\u7684\u5c01\u88c5\u5e93\uff1a<\/strong> \u4e3a\u4e86\u7b80\u5316\u6570\u636e\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u5982PouchDB\u3001LocalForage\u548cLokiJS\u7b49\uff0c\u5b83\u4eec\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u548c\u4fbf\u6377\u7684API\u6765\u64cd\u4f5cIndexedDB\u3001Web SQL\u548cWeb Storage\u3002<\/p>\n<\/li>\n<\/ul>\n

            2. \u5982\u4f55\u9009\u62e9\u9002\u5408\u7684JavaScript\u5b58\u50a8\u65b9\u5f0f\uff1f<\/strong><\/p>\n

              \n
            • \u7b80\u5355\u7684\u6570\u636e\u53ef\u4ee5\u4f7f\u7528Cookies\u6216Web Storage\uff0c\u5728\u6d4f\u89c8\u5668\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u65f6\u90fd\u6bd4\u8f83\u65b9\u4fbf\u3002<\/li>\n
            • \u9700\u8981\u5b58\u50a8\u5927\u91cf\u7ed3\u6784\u5316\u6570\u636e\u65f6\uff0cIndexedDB\u662f\u4e00\u79cd\u66f4\u5408\u9002\u7684\u9009\u62e9\u3002<\/li>\n
            • \u9700\u8981\u4f7f\u7528SQL\u8bed\u6cd5\u8fdb\u884c\u9ad8\u7ea7\u67e5\u8be2\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528WebSQL\uff08\u5982\u679c\u6d4f\u89c8\u5668\u652f\u6301\uff09\u6216\u5c01\u88c5\u5e93\u3002<\/li>\n
            • \u9700\u8981\u8de8\u5e73\u53f0\u548c\u79bb\u7ebf\u8bbf\u95ee\u6570\u636e\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528\u5c01\u88c5\u5e93\uff0c\u4ee5\u4fbf\u81ea\u52a8\u9009\u62e9\u9002\u5408\u7684\u5b58\u50a8\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n

              3. \u5982\u4f55\u4fdd\u969cJavaScript\u5b58\u50a8\u6570\u636e\u7684\u5b89\u5168\u6027\uff1f<\/strong><\/p>\n

                \n
              • \u5bf9\u4e8e\u654f\u611f\u6570\u636e\uff0c\u4e0d\u5e94\u8be5\u76f4\u63a5\u5b58\u50a8\u5728Cookies\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u52a0\u5bc6\u7b97\u6cd5\u5bf9\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\u548c\u89e3\u5bc6\u3002<\/li>\n
              • \u5728\u4f7f\u7528Web Storage API\u5b58\u50a8\u6570\u636e\u65f6\uff0c\u5e94\u8be5\u5bf9\u6570\u636e\u8fdb\u884c\u9002\u5f53\u7684\u9a8c\u8bc1\u548c\u8fc7\u6ee4\uff0c\u907f\u514d\u5b58\u50a8\u6076\u610f\u5185\u5bb9\u6216\u5bfc\u81f4\u5b89\u5168\u6f0f\u6d1e\u3002<\/li>\n
              • \u4f7f\u7528IndexedDB\u6216WebSQL\u65f6\uff0c\u5e94\u8be5\u5b9e\u65bd\u9002\u5f53\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u6bd4\u5982\u9650\u5236\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u6743\u9650\u3001\u4f7f\u7528\u53d7\u4fe1\u4efb\u7684\u670d\u52a1\u5668\u7aef\u9a8c\u8bc1\u6570\u636e\u7b49\u3002<\/li>\n
              • \u6ce8\u610f\u9632\u8303\u8de8\u7ad9\u811a\u672c\u653b\u51fb\uff08XSS\uff09\u548c\u8de8\u7ad9\u8bf7\u6c42\u4f2a\u9020\u653b\u51fb\uff08CSRF\uff09\uff0c\u907f\u514d\u6076\u610f\u811a\u672c\u6216\u8bf7\u6c42\u7be1\u6539\u6216\u83b7\u53d6\u5b58\u50a8\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"\u524d\u7aefJavaScript\u5b58\u50a8\u6570\u636e\u7684\u65b9\u5f0f\u4e3b\u8981\u5305\u62ec\uff1alocalStorage\u3001sessionStorage\u3001coo […]","protected":false},"author":3,"featured_media":315675,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/315668"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=315668"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/315668\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/315675"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=315668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=315668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=315668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}