{"id":6894,"date":"2025-05-29T13:26:57","date_gmt":"2025-06-05T05:58:57","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6894"},"modified":"2025-06-05T13:26:57","modified_gmt":"2025-06-05T05:58:57","slug":"https-badgameshow-com-steven-123","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-123\/","title":{"rendered":"2025 \u6700\u65b0 Swift \u7a0b\u5f0f\u6559\u5b78\uff1a\u6df1\u5165\u89e3\u6790 JSON \u8cc7\u6599"},"content":{"rendered":"<p>&#8220;`html<br \/>\n<meta name=\"keywords\" content=\"swift, JSON, \u8cc7\u6599\u89e3\u6790, Swift 2025, JSONDecoder, Codable\"><\/p>\n<h1>2025 \u6700\u65b0 Swift \u7a0b\u5f0f\u6559\u5b78\uff1a\u6df1\u5165\u89e3\u6790 JSON \u8cc7\u6599<\/h1>\n<p>Swift \u662f\u4e00\u7a2e\u5feb\u901f\u3001\u5b89\u5168\u4e14\u73fe\u4ee3\u5316\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u9069\u7528\u65bc\u958b\u767c\u9ad8\u54c1\u8cea\u7684 iOS\u3001macOS\u3001watchOS \u548c tvOS \u61c9\u7528\u7a0b\u5f0f\u3002\u5728\u958b\u767c\u904e\u7a0b\u4e2d\uff0c\u8655\u7406\u8cc7\u6599\u662f\u5e38\u898b\u9700\u6c42\uff0c\u800c JSON \u683c\u5f0f\u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u8cc7\u6599\u683c\u5f0f\u3002\u672c\u7bc7\u6587\u7ae0\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 Swift 2025 \u6700\u65b0\u8a9e\u6cd5\u4f86\u89e3\u6790 JSON \u683c\u5f0f\u7684\u8cc7\u6599\uff0c\u4e26\u5c07\u5176\u8f49\u63db\u70ba Swift \u7684\u7269\u4ef6\u3002<\/p>\n<h2>\u89e3\u6790 JSON \u683c\u5f0f\u7684\u8cc7\u6599<\/h2>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5b9a\u7fa9\u4e00\u500b JSON \u683c\u5f0f\u7684\u8cc7\u6599\u7bc4\u4f8b\uff1a<\/p>\n<pre><code class=\"language-json line-numbers\">{\n    \"name\": \"John Doe\",\n    \"age\": 30,\n    \"address\": {\n        \"street\": \"123 Main Street\",\n        \"city\": \"New York\",\n        \"state\": \"NY\"\n    }\n}\n<\/code><\/pre>\n<p>\u63a5\u8457\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 Swift \u7684 <code>JSONDecoder<\/code> \u4f86\u89e3\u6790\u9019\u500b JSON \u8cc7\u6599\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let jsonData = \"\"\"\n{\n    \"name\": \"John Doe\",\n    \"age\": 30,\n    \"address\": {\n        \"street\": \"123 Main Street\",\n        \"city\": \"New York\",\n        \"state\": \"NY\"\n    }\n}\n\"\"\".data(using: .utf8)!\n\nlet decoder = JSONDecoder()\nlet user = try decoder.decode(User.self, from: jsonData)\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5c07 JSON \u683c\u5f0f\u7684\u8cc7\u6599\u8f49\u63db\u70ba <code>Data<\/code> \u7269\u4ef6\uff0c\u7136\u5f8c\u900f\u904e <code>JSONDecoder<\/code> \u89e3\u6790\u8cc7\u6599\uff0c\u6700\u5f8c\u5c07\u8cc7\u6599\u8f49\u63db\u70ba <code>User<\/code> \u7269\u4ef6\u3002<\/p>\n<h2>\u5b9a\u7fa9 Swift \u7269\u4ef6<\/h2>\n<p>\u70ba\u4e86\u5c07\u8cc7\u6599\u8f49\u63db\u70ba Swift \u7269\u4ef6\uff0c\u6211\u5011\u9700\u8981\u5b9a\u7fa9\u7b26\u5408 <code>Codable<\/code> \u5354\u5b9a\u7684 <code>User<\/code> \u7d50\u69cb\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">struct User: Codable {\n    var name: String\n    var age: Int\n    var address: Address\n}\n\nstruct Address: Codable {\n    var street: String\n    var city: String\n    var state: String\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b <code>User<\/code> \u7269\u4ef6\uff0c\u5305\u542b\u4e09\u500b\u5c6c\u6027\uff1a<code>name<\/code>\u3001<code>age<\/code> \u548c <code>address<\/code>\u3002\u5176\u4e2d\uff0c<code>address<\/code> \u662f\u4e00\u500b <code>Address<\/code> \u7269\u4ef6\uff0c\u5305\u542b\u4e09\u500b\u5c6c\u6027\uff1a<code>street<\/code>\u3001<code>city<\/code> \u548c <code>state<\/code>\u3002<\/p>\n<h2>\u932f\u8aa4\u6392\u9664<\/h2>\n<p>\u5728\u89e3\u6790 JSON \u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u932f\u8aa4\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u89e3\u78bc\u5931\u6557\uff1a<\/strong>\u78ba\u4fdd JSON \u7d50\u69cb\u6b63\u78ba\u4e14\u6240\u6709\u5fc5\u9700\u5c6c\u6027\u90fd\u6709\u63d0\u4f9b\u3002<\/li>\n<li><strong>\u578b\u5225\u4e0d\u5339\u914d\uff1a<\/strong>\u78ba\u8a8d JSON \u4e2d\u7684\u578b\u5225\u8207 Swift \u7269\u4ef6\u5b9a\u7fa9\u4e00\u81f4\uff0c\u4f8b\u5982\u6574\u6578\u8207\u5b57\u4e32\u3002<\/li>\n<\/ul>\n<p>\u82e5\u9047\u5230\u932f\u8aa4\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>do-catch<\/code> \u4f86\u6355\u6349\u4e26\u8655\u7406\u932f\u8aa4\uff0c\u9019\u6a23\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u8a3a\u65b7\u554f\u984c\u3002<\/p>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>\u9664\u4e86\u57fa\u672c\u7684\u8cc7\u6599\u89e3\u6790\uff0cSwift \u9084\u652f\u6301\u66f4\u8907\u96dc\u7684 JSON \u7d50\u69cb\uff0c\u4f8b\u5982\u9663\u5217\u548c\u5de2\u72c0\u7269\u4ef6\u3002\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 JSONDecoder \u7684 <code>keyDecodingStrategy<\/code> \u4f86\u8655\u7406\u4e0d\u540c\u7684\u9375\u547d\u540d\u898f\u5247\uff0c\u9032\u4e00\u6b65\u63d0\u9ad8\u8cc7\u6599\u8655\u7406\u7684\u9748\u6d3b\u6027\u3002<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u672c\u7bc7\u6587\u7ae0\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 Swift 2025 \u6700\u65b0\u8a9e\u6cd5\u4f86\u89e3\u6790 JSON \u683c\u5f0f\u7684\u8cc7\u6599\u3002\u900f\u904e <code>JSONDecoder<\/code> \u548c <code>Codable<\/code> \u5354\u5b9a\uff0c\u6211\u5011\u80fd\u5920\u5feb\u901f\u4e14\u5b89\u5168\u5730\u5c07 JSON \u8cc7\u6599\u8f49\u63db\u70ba Swift \u7269\u4ef6\uff0c\u70ba\u958b\u767c\u9ad8\u54c1\u8cea\u61c9\u7528\u7a0b\u5f0f\u6253\u4e0b\u826f\u597d\u57fa\u790e\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u8cc7\u6599\u89e3\u6790-JSON-\ud83d\udcbe_1675397930.286797.webp\" alt=\"Swift \u8cc7\u6599\u89e3\u6790 (JSON) \ud83d\udcbe\" title=\"Swift \u8cc7\u6599\u89e3\u6790, JSON \u8cc7\u6599\u89e3\u6790, Swift \u8a9e\u8a00, JSON \u683c\u5f0f, \u7a0b\u5f0f\u78bc\u7bc4\u4f8b\" width=\"1200\" height=\"628\"\/><\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>Q1: \u5982\u4f55\u8655\u7406\u932f\u8aa4\u7684 JSON \u683c\u5f0f\uff1f<\/h3>\n<p>A1: \u5728\u89e3\u6790 JSON \u6642\uff0c\u4f7f\u7528 <code>do-catch<\/code> \u4f86\u6355\u6349\u89e3\u6790\u904e\u7a0b\u4e2d\u7684\u932f\u8aa4\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u932f\u8aa4\u63d0\u793a\u3002<\/p>\n<h3>Q2: JSONDecoder \u652f\u6301\u54ea\u4e9b\u81ea\u8a02\u5316\u9078\u9805\uff1f<\/h3>\n<p>A2: <code>JSONDecoder<\/code> \u652f\u6301\u81ea\u8a02\u9375\u89e3\u78bc\u7b56\u7565\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u5c0d\u61c9\u4e0d\u540c\u547d\u540d\u898f\u5247\u7684 JSON \u9375\u3002<\/p>\n<h3>Q3: \u5982\u4f55\u89e3\u6790 JSON \u9663\u5217\uff1f<\/h3>\n<p>A3: \u82e5 JSON \u5305\u542b\u9663\u5217\uff0c\u5247\u53ef\u4ee5\u5c07 Swift \u7d50\u69cb\u6539\u70ba\u9663\u5217\u578b\u5225\uff0c\u4f8b\u5982 <code>let users = try decoder.decode([User].self, from: jsonData)<\/code>\u3002<\/p>\n<p>&#8220;`<br \/>\n&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981(Description):\u5b78\u7fd2Swift\u8cc7\u6599\u89e3\u6790(JSON)\ud83d\udcbe\uff0c\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Swift\u8a9e\u8a00\u4f86\u89e3\u6790JSON\u683c\u5f0f\u7684\u8cc7\u6599\uff0c\u4e26\u63d0\u4f9b\u7c21\u55ae\u6613\u61c2\u7684\u7a0b\u5f0f\u78bc\u7bc4\u4f8b\uff0c\u8b93\u4f60\u53ef\u4ee5\u5feb\u901f\u4e0a\u624b\u3002<\/p>\n","protected":false},"author":1,"featured_media":6893,"comment_status":"open","ping_status":"closed","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":[174,5],"tags":[173,9],"class_list":["post-6894","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u8cc7\u6599\u89e3\u6790-JSON-\ud83d\udcbe_1675397930.286797.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1Nc","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6894","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=6894"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6894\/revisions"}],"predecessor-version":[{"id":13441,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6894\/revisions\/13441"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/6893"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=6894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=6894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=6894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}