{"id":6743,"date":"2025-06-03T13:15:48","date_gmt":"2025-06-05T05:24:47","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6743"},"modified":"2025-06-05T13:15:48","modified_gmt":"2025-06-05T05:24:47","slug":"https-badgameshow-com-steven-48","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-48\/","title":{"rendered":"Swift \u8cc7\u6599\u5eab\u5b58\u53d6\u6307\u5357 \ud83d\udcbe 2025 \u6700\u65b0 Core Data \u5be6\u4f5c\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

“`html
\n<\/p>\n

Swift \u8cc7\u6599\u5eab\u5b58\u53d6\u6307\u5357 \ud83d\udcbe 2025 \u6700\u65b0 Core Data \u5be6\u4f5c\u8207\u6700\u4f73\u5be6\u8e10<\/h1>\n

Swift \u662f\u4e00\u7a2e\u5feb\u901f\u3001\u5b89\u5168\u4e14\u73fe\u4ee3\u5316\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u9069\u5408\u958b\u767c\u529f\u80fd\u5f37\u5927\u7684\u61c9\u7528\u7a0b\u5f0f\u3002\u5728\u8cc7\u6599\u5eab\u5b58\u53d6\u65b9\u9762\uff0cSwift \u63d0\u4f9b\u4e86\u8a31\u591a\u5f37\u5927\u7684\u5de5\u5177\uff0c\u5c24\u5176\u662f Core Data<\/strong> \u6846\u67b6\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u52a0\u9ad8\u6548\u5730\u9032\u884c\u8cc7\u6599\u5eab\u7684\u64cd\u4f5c\u8207\u7ba1\u7406\u3002<\/p>\n

Core Data \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Core Data \u662f\u4e00\u500b\u8cc7\u6599\u6301\u4e45\u5316\u6846\u67b6\uff0c\u65e8\u5728\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u8cc7\u6599\u3002\u5b83\u63d0\u4f9b\u4e86 Managed Object Model<\/strong>\uff0c\u5c07\u8cc7\u6599\u5eab\u4e2d\u7684\u8cc7\u6599\u5c01\u88dd\u70ba\u53ef\u64cd\u4f5c\u7684\u7269\u4ef6\uff0c\u4e26\u652f\u63f4\u8cc7\u6599\u7684\u589e\u522a\u6539\u67e5\u64cd\u4f5c\u3002<\/p>\n

Core Data \u7684\u57fa\u672c\u64cd\u4f5c<\/h2>\n

\u5728 Core Data \u4e2d\uff0c\u958b\u767c\u8005\u4f7f\u7528 Managed Object Context<\/strong> \u4f86\u8207\u8cc7\u6599\u5eab\u9032\u884c\u4e92\u52d5\u3002\u9019\u500b\u4e0a\u4e0b\u6587\u5141\u8a31\u958b\u767c\u8005\u5c0d\u8cc7\u6599\u9032\u884c\u64cd\u4f5c\uff0c\u4f8b\u5982\u65b0\u589e\u3001\u4fee\u6539\u6216\u522a\u9664\u8cc7\u6599\u3002<\/p>\n

Core Data \u7684\u7a0b\u5f0f\u7bc4\u4f8b<\/h2>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Core Data \u7a0b\u5f0f\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5efa\u7acb\u8cc7\u6599\u5eab\u4e26\u9032\u884c\u8cc7\u6599\u5b58\u53d6\uff1a<\/p>\n

\/\/ 1. \u5efa\u7acb Managed Object Context\nlet managedObjectContext = NSManagedObjectContext(concurrencyType: .mainQueueConcurrencyType)\n\n\/\/ 2. \u5efa\u7acb Managed Object Model\nguard let managedObjectModel = NSManagedObjectModel.mergedModel(from: nil) else {\n    fatalError(\"Failed to load model\")\n}\n\n\/\/ 3. \u5efa\u7acb Persistent Store Coordinator\nlet persistentStoreCoordinator = NSPersistentStoreCoordinator(managedObjectModel: managedObjectModel)\n\n\/\/ 4. \u5efa\u7acb Persistent Store\nlet storeURL = URL(fileURLWithPath: \"path\/to\/database.sqlite\")\ndo {\n    try persistentStoreCoordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: storeURL, options: nil)\n} catch {\n    fatalError(\"Failed to load store: \\(error)\")\n}\n\n\/\/ 5. \u8a2d\u5b9a Managed Object Context \u7684 Persistent Store\nmanagedObjectContext.persistentStoreCoordinator = persistentStoreCoordinator\n\n\/\/ 6. \u958b\u59cb\u5b58\u53d6\u8cc7\u6599\u5eab\nlet fetchRequest = NSFetchRequest(entityName: \"EntityName\")\ndo {\n    let results = try managedObjectContext.fetch(fetchRequest)\n    \/\/ \u8655\u7406\u7d50\u679c\n} catch {\n    print(\"Fetch failed: \\(error)\")\n}\n<\/code><\/pre>\n
\u4ee5\u4e0a\u7a0b\u5f0f\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5efa\u7acb Core Data \u7684\u57fa\u672c\u64cd\u4f5c\u6d41\u7a0b\uff0c\u80fd\u5920\u8b93\u958b\u767c\u8005\u5feb\u901f\u5b58\u53d6\u53ca\u64cd\u4f5c\u8cc7\u6599\u5eab\u4e2d\u7684\u8cc7\u6599\u3002<\/p>\n
\u932f\u8aa4\u6392\u9664\u8207\u6700\u4f73\u5be6\u8e10<\/h2>\n
\u5728\u4f7f\u7528 Core Data \u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u5982\u8cc7\u6599\u7121\u6cd5\u5b58\u53d6\u6216\u7121\u6cd5\u66f4\u65b0\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u932f\u8aa4\u6392\u9664\u7684\u5efa\u8b70\uff1a<\/p>\n
    \n
  • \u78ba\u4fdd\u8cc7\u6599\u6a21\u578b\u6b63\u78ba\u8a2d\u5b9a\uff0c\u4e26\u6aa2\u67e5 Entity \u7684\u540d\u7a31\u662f\u5426\u8207\u7a0b\u5f0f\u78bc\u4e00\u81f4\u3002<\/li>\n
  • \u4f7f\u7528 NSManagedObjectContext<\/strong> \u7684 save() \u65b9\u6cd5\u4f86\u78ba\u4fdd\u8cc7\u6599\u8b8a\u66f4\u5df2\u5132\u5b58\u3002<\/li>\n
  • \u6aa2\u67e5\u8cc7\u6599\u5eab\u7684\u8def\u5f91\u8a2d\u5b9a\uff0c\u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u6709\u6b0a\u9650\u8b80\u53d6\u8207\u5beb\u5165\u8cc7\u6599\u5eab\u3002<\/li>\n<\/ul>\n
    \u5ef6\u4f38\u61c9\u7528<\/h2>\n
    Core Data \u4e26\u4e0d\u50c5\u9650\u65bc\u57fa\u672c\u7684 CRUD \u64cd\u4f5c\uff0c\u9084\u53ef\u4ee5\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u67e5\u8a62\u3001\u8cc7\u6599\u95dc\u806f\u53ca\u8cc7\u6599\u9a57\u8b49\u7b49\u529f\u80fd\u3002\u5b78\u7fd2\u5982\u4f55\u5229\u7528 NSPredicate<\/strong> \u9032\u884c\u689d\u4ef6\u67e5\u8a62\uff0c\u6216\u4f7f\u7528 NSFetchedResultsController<\/strong> \u4f86\u9ad8\u6548\u7ba1\u7406\u8cc7\u6599\u7684\u986f\u793a\u3002<\/p>\n
    \"Swift<\/p>\n
    Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n
    Q1: Core Data \u548c SQLite \u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f<\/h3>\n
    A1: Core Data \u662f\u4e00\u500b\u9ad8\u5c64\u6b21\u7684\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4e00\u500b\u7269\u4ef6\u5c0e\u5411\u7684\u4ecb\u9762\u4f86\u7ba1\u7406\u8cc7\u6599\uff0c\u800c SQLite \u662f\u4e00\u500b\u5e95\u5c64\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\u3002Core Data \u53ef\u4ee5\u4f7f\u7528 SQLite \u4f5c\u70ba\u6301\u4e45\u5316\u5132\u5b58\u7684\u5f8c\u7aef\u3002<\/p>\n
    Q2: \u5982\u4f55\u5728 Core Data \u4e2d\u8655\u7406\u8cc7\u6599\u7684\u95dc\u806f\u6027\uff1f<\/h3>\n
    A2: \u5728 Core Data \u4e2d\uff0c\u53ef\u4ee5\u900f\u904e\u8a2d\u5b9a\u95dc\u806f\u5c6c\u6027\u4f86\u7ba1\u7406\u8cc7\u6599\u4e4b\u9593\u7684\u95dc\u806f\u6027\uff0c\u4f8b\u5982\u4e00\u5c0d\u591a\u6216\u591a\u5c0d\u591a\u7684\u95dc\u4fc2\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u67e5\u8a62\u6642\u81ea\u52d5\u6293\u53d6\u76f8\u95dc\u8cc7\u6599\u3002<\/p>\n
    “`
    \n—<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u6587\u7ae0\u6458\u8981\uff1a\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Swift\u8cc7\u6599\u5eab\u5b58\u53d6\u6280\u5de7\uff0c\u5feb\u901f\u5b58\u53d6\u8cc7\u6599\u5eab\uff0c\u8b93\u4f60\u7684\u7a0b\u5f0f\u66f4\u52a0\u9748\u6d3b\uff0c\u66f4\u6709\u6548\u7387\u3002\u4e86\u89e3Swift\u4e2d\u7684methods()\u51fd\u6578\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u5011\u4f86\u5b58\u53d6\u8cc7\u6599\u5eab\u3002<\/p>\n","protected":false},"author":1,"featured_media":6741,"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-6743","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\u5eab\u5b58\u53d6-\ud83d\udcbe-\u8cc7\u6599\u5eab\u5feb\u901f\u5b58\u53d6\u6cd5_1675394926.7068071.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1KL","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6743","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=6743"}],"version-history":[{"count":0,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6743\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/6741"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=6743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=6743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=6743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}