{"id":6360,"date":"2023-01-07T12:58:13","date_gmt":"2023-01-07T04:58:13","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6360"},"modified":"2023-01-07T12:58:13","modified_gmt":"2023-01-07T04:58:13","slug":"%e4%ba%86%e8%a7%a3%e5%a6%82%e4%bd%95%e5%9c%a8node-js%e4%b8%ad%e4%bd%bf%e7%94%a8dns%e5%ba%ab%e9%80%b2%e8%a1%8c%e5%9f%9f%e5%90%8d%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/node-js\/%e4%ba%86%e8%a7%a3%e5%a6%82%e4%bd%95%e5%9c%a8node-js%e4%b8%ad%e4%bd%bf%e7%94%a8dns%e5%ba%ab%e9%80%b2%e8%a1%8c%e5%9f%9f%e5%90%8d%e8%a7%a3%e6%9e%90\/","title":{"rendered":"\u4e86\u89e3\u5982\u4f55\u5728Node.js\u4e2d\u4f7f\u7528DNS\u5eab\u9032\u884c\u57df\u540d\u89e3\u6790"},"content":{"rendered":"

<\/p>\n

\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 dns \u5e93\u9032\u884c\u57df\u540d\u89e3\u6790\uff1f<\/h1>\n

Node.js \u662f\u4e00\u500b\u5ee3\u53d7\u6b61\u8fce\u7684 JavaScript \u74b0\u5883\uff0c\u5b83\u53ef\u4ee5\u7528\u65bc\u958b\u767c\u5404\u7a2e\u61c9\u7528\u7a0b\u5f0f\uff0c\u5305\u62ec\u7db2\u8def\u61c9\u7528\u7a0b\u5f0f\u3002\u5728\u958b\u767c\u7db2\u8def\u61c9\u7528\u7a0b\u5f0f\u6642\uff0c\u6709\u6642\u5019\u9700\u8981\u4f7f\u7528 DNS \u5eab\u4f86\u89e3\u6790\u57df\u540d\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 dns \u5eab\u9032\u884c\u57df\u540d\u89e3\u6790\u3002<\/p>\n

\u4ec0\u9ebc\u662f DNS\uff1f<\/h2>\n

DNS\uff08Domain Name System\uff09\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u8cc7\u6599\u5eab\uff0c\u7528\u65bc\u5c07\u57df\u540d\u89e3\u6790\u70ba IP \u4f4d\u5740\u3002\u5b83\u662f\u7db2\u969b\u7db2\u8def\u4e0a\u7684\u4e00\u500b\u91cd\u8981\u7d44\u6210\u90e8\u5206\uff0c\u53ef\u4ee5\u8b93\u4f7f\u7528\u8005\u8f15\u9b06\u5730\u8a2a\u554f\u7db2\u7ad9\uff0c\u800c\u4e0d\u9700\u8981\u8a18\u4f4f IP \u4f4d\u5740\u3002<\/p>\n

\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 dns \u5eab\u9032\u884c\u57df\u540d\u89e3\u6790\uff1f<\/h2>\n

Node.js \u63d0\u4f9b\u4e86\u4e00\u500b\u5167\u5efa\u7684 dns \u6a21\u7d44\uff0c\u53ef\u4ee5\u7528\u65bc\u89e3\u6790\u57df\u540d\u3002\u8981\u4f7f\u7528\u5b83\uff0c\u9996\u5148\u9700\u8981\u5c0e\u5165 dns \u6a21\u7d44\uff1a<\/p>\n

\nconst dns = require('dns');\n<\/pre>\n
\u63a5\u4e0b\u4f86\uff0c\u53ef\u4ee5\u4f7f\u7528 dns.lookup() \u65b9\u6cd5\u4f86\u89e3\u6790\u57df\u540d\uff1a<\/p>\n
\ndns.lookup('example.com', (err, address, family) => {\n  console.log('IP \u5730\u5740: %j \u5bb6\u65cf: IPv%s', address, family);\n});\n<\/pre>\n
dns.lookup() \u65b9\u6cd5\u6703\u50b3\u56de\u4e00\u500b IP \u4f4d\u5740\u548c\u4e00\u500b\u5bb6\u65cf\uff08IPv4 \u6216 IPv6\uff09\u3002\u5982\u679c\u8981\u89e3\u6790\u591a\u500b\u57df\u540d\uff0c\u53ef\u4ee5\u4f7f\u7528 dns.resolve() \u65b9\u6cd5\uff1a<\/p>\n
\ndns.resolve(['example.com', 'www.example.com'], (err, addresses) => {\n  if (err) throw err;\n\n  console.log(`IP \u5730\u5740: ${JSON.stringify(addresses)}`);\n});\n<\/pre>\n
dns.resolve() \u65b9\u6cd5\u6703\u50b3\u56de\u4e00\u500b IP \u4f4d\u5740\u9663\u5217\u3002<\/p>\n
<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 dns \u5eab\u9032\u884c\u57df\u540d\u89e3\u6790\u3002\u6211\u5011\u4ecb\u7d39\u4e86 dns.lookup() \u548c dns.resolve() \u65b9\u6cd5\uff0c\u5b83\u5011\u53ef\u4ee5\u7528\u65bc\u89e3\u6790\u55ae\u500b\u57df\u540d\u548c\u591a\u500b\u57df\u540d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981:\u5728Node.js\u4e2d\u4f7f\u7528DNS\u5eab\u9032\u884c\u57df\u540d\u89e3\u6790\u662f\u4e00\u500b\u5f88\u6709\u7528\u7684\u6280\u8853\uff0c\u5b83\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u89e3\u6790\u57df\u540d\uff0c\u4e26\u66f4\u597d\u5730\u7ba1\u7406\u7db2\u7d61\u8acb\u6c42\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728Node.js\u4e2d\u4f7f\u7528DNS\u5eab\u9032\u884c\u57df\u540d\u89e3\u6790\uff0c\u4ee5\u53ca\u5982\u4f55\u5229\u7528\u5b83\u4f86\u63d0\u9ad8\u7db2\u7d61\u6027\u80fd\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[193,192],"tags":[191,190],"class_list":["post-6360","post","type-post","status-publish","format-standard","hentry","category-node","category-node-js","tag-node","tag-node-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1EA","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=6360"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6360\/revisions"}],"predecessor-version":[{"id":6361,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6360\/revisions\/6361"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=6360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=6360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=6360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}