{"id":58377,"date":"2024-10-12T20:14:23","date_gmt":"2024-10-12T12:14:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/58377\/"},"modified":"2024-10-12T20:14:23","modified_gmt":"2024-10-12T12:14:23","slug":"android-%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%88db%ef%bc%89%e7%ae%a1%e7%90%86%e8%bb%9f%e4%bb%b6%e7%b0%a1%e4%bb%8b-android-%e6%95%b8%e6%93%9a%e5%ba%ab-%e7%ae%a1%e7%90%86%e8%bb%9f%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/58377\/","title":{"rendered":"Android \u6578\u64da\u5eab\uff08DB\uff09\u7ba1\u7406\u8edf\u4ef6\u7c21\u4ecb (android \u6578\u64da\u5eab \u7ba1\u7406\u8edf\u4ef6)"},"content":{"rendered":"<h1 id=\"android-%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%88db%ef%bc%89%e7%ae%a1%e7%90%86%e8%bb%9f%e4%bb%b6%e7%b0%a1%e4%bb%8b-RyzlPCNKMn\">Android \u6578\u64da\u5eab\uff08DB\uff09\u7ba1\u7406\u8edf\u4ef6\u7c21\u4ecb<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u79fb\u52d5\u61c9\u7528\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002Android \u4f5c\u70ba\u5168\u7403\u6700\u6d41\u884c\u7684\u79fb\u52d5\u64cd\u4f5c\u7cfb\u7d71\u4e4b\u4e00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u5eab\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u5b58\u5132\u548c\u7ba1\u7406\u61c9\u7528\u6578\u64da\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u5e38\u898b\u7684 Android \u6578\u64da\u5eab\u7ba1\u7406\u8edf\u4ef6\u53ca\u5176\u7279\u9ede\u3002<\/p>\n<h2 id=\"1-sqlite-RyzlPCNKMn\">1. SQLite<\/h2>\n<p>SQLite \u662f Android \u5e73\u53f0\u4e0a\u6700\u5e38\u7528\u7684\u5167\u5d4c\u6578\u64da\u5eab\u3002\u5b83\u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u7121\u9700\u5b89\u88dd\u548c\u914d\u7f6e\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u76f4\u63a5\u5728\u61c9\u7528\u4e2d\u4f7f\u7528\u3002SQLite \u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u8f15\u91cf\u7d1a\uff1a<\/strong>SQLite \u7684\u5eab\u6587\u4ef6\u975e\u5e38\u5c0f\uff0c\u9069\u5408\u79fb\u52d5\u8a2d\u5099\u4f7f\u7528\u3002<\/li>\n<li><strong>\u7121\u9700\u4f3a\u670d\u5668\uff1a<\/strong>SQLite \u662f\u4e00\u500b\u81ea\u7d66\u81ea\u8db3\u7684\u6578\u64da\u5eab\uff0c\u7121\u9700\u984d\u5916\u7684\u4f3a\u670d\u5668\u652f\u6301\u3002<\/li>\n<li><strong>\u652f\u6301 SQL \u8a9e\u8a00\uff1a<\/strong>\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u6a19\u6e96\u7684 SQL \u8a9e\u53e5\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 SQLite \u4f7f\u7528\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SQLiteDatabase db = this.getWritableDatabase();\nContentValues values = new ContentValues();\nvalues.put(\"name\", \"John Doe\");\ndb.insert(\"users\", null, values);\n<\/code><\/pre>\n<h2 id=\"2-room-RyzlPCNKMn\">2. Room<\/h2>\n<p>Room \u662f Google \u63d0\u4f9b\u7684\u4e00\u500b\u6301\u4e45\u6027\u5eab\uff0c\u65e8\u5728\u7c21\u5316 SQLite \u7684\u4f7f\u7528\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u500b\u62bd\u8c61\u5c64\uff0c\u4f7f\u5f97\u6578\u64da\u5eab\u64cd\u4f5c\u66f4\u52a0\u7c21\u55ae\u548c\u5b89\u5168\u3002Room \u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u7248\u672c\u7ba1\u7406\uff1a<\/strong>Room \u81ea\u52d5\u8655\u7406\u6578\u64da\u5eab\u7248\u672c\u7684\u5347\u7d1a\u548c\u964d\u7d1a\u3002<\/li>\n<li><strong>\u7de8\u8b6f\u6642\u6aa2\u67e5\uff1a<\/strong>Room \u5728\u7de8\u8b6f\u6642\u6aa2\u67e5 SQL \u8a9e\u53e5\u7684\u6b63\u78ba\u6027\uff0c\u6e1b\u5c11\u904b\u884c\u6642\u932f\u8aa4\u3002<\/li>\n<li><strong>\u652f\u6301 LiveData \u548c RxJava\uff1a<\/strong>Room \u53ef\u4ee5\u8207 LiveData \u548c RxJava \u7d50\u5408\u4f7f\u7528\uff0c\u5be6\u73fe\u6578\u64da\u7684\u5be6\u6642\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Room \u7684\u7c21\u55ae\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>@Entity\npublic class User {\n    @PrimaryKey\n    public int uid;\n    @ColumnInfo(name = \"first_name\")\n    public String firstName;\n    @ColumnInfo(name = \"last_name\")\n    public String lastName;\n}\n\n@Dao\npublic interface UserDao {\n    @Insert\n    void insert(User user);\n}\n<\/code><\/pre>\n<h2 id=\"3-realm-RyzlPCNKMn\">3. Realm<\/h2>\n<p>Realm \u662f\u4e00\u500b\u79fb\u52d5\u6578\u64da\u5eab\uff0c\u5c08\u70ba\u79fb\u52d5\u61c9\u7528\u8a2d\u8a08\u3002\u5b83\u7684\u6027\u80fd\u512a\u8d8a\uff0c\u4e26\u4e14\u6613\u65bc\u4f7f\u7528\u3002Realm \u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Realm \u7684\u8b80\u5beb\u901f\u5ea6\u6bd4 SQLite \u5feb\u5f97\u591a\uff0c\u9069\u5408\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u3002<\/li>\n<li><strong>\u7c21\u55ae\u7684\u6578\u64da\u6a21\u578b\uff1a<\/strong>Realm \u4f7f\u7528\u5c0d\u8c61\u5c0e\u5411\u7684\u6578\u64da\u6a21\u578b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u76f4\u63a5\u64cd\u4f5c\u5c0d\u8c61\uff0c\u800c\u7121\u9700\u7de8\u5beb SQL \u8a9e\u53e5\u3002<\/li>\n<li><strong>\u8de8\u5e73\u53f0\u652f\u6301\uff1a<\/strong>Realm \u652f\u6301\u591a\u7a2e\u5e73\u53f0\uff0c\u5305\u62ec Android \u548c iOS\uff0c\u65b9\u4fbf\u958b\u767c\u8005\u9032\u884c\u8de8\u5e73\u53f0\u958b\u767c\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Realm \u7684\u7c21\u55ae\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>Realm realm = Realm.getDefaultInstance();\nrealm.executeTransaction(new Realm.Transaction() {\n    @Override\n    public void execute(Realm realm) {\n        User user = realm.createObject(User.class);\n        user.setName(\"John Doe\");\n    }\n});\n<\/code><\/pre>\n<h2 id=\"4-firebase-realtime-database-RyzlPCNKMn\">4. Firebase Realtime Database<\/h2>\n<p>Firebase Realtime Database \u662f Google \u63d0\u4f9b\u7684\u4e00\u500b\u96f2\u7aef\u6578\u64da\u5eab\uff0c\u9069\u5408\u9700\u8981\u5be6\u6642\u6578\u64da\u540c\u6b65\u7684\u61c9\u7528\u3002\u5176\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5be6\u6642\u6578\u64da\u540c\u6b65\uff1a<\/strong>Firebase \u53ef\u4ee5\u5be6\u6642\u540c\u6b65\u6578\u64da\uff0c\u9069\u5408\u804a\u5929\u61c9\u7528\u548c\u793e\u4ea4\u5a92\u9ad4\u3002<\/li>\n<li><strong>\u7121\u9700\u4f3a\u670d\u5668\u7ba1\u7406\uff1a<\/strong>Firebase \u662f\u4e00\u500b\u5b8c\u5168\u6258\u7ba1\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u958b\u767c\u8005\u7121\u9700\u64d4\u5fc3\u4f3a\u670d\u5668\u7684\u7dad\u8b77\u3002<\/li>\n<li><strong>\u7c21\u55ae\u7684 API\uff1a<\/strong>Firebase \u63d0\u4f9b\u4e86\u7c21\u55ae\u6613\u7528\u7684 API\uff0c\u65b9\u4fbf\u958b\u767c\u8005\u5feb\u901f\u4e0a\u624b\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Firebase \u7684\u7c21\u55ae\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>DatabaseReference database = FirebaseDatabase.getInstance().getReference();\ndatabase.child(\"users\").child(\"user1\").setValue(\"John Doe\");\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RyzlPCNKMn\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Android \u61c9\u7528\u958b\u767c\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u7ba1\u7406\u8edf\u4ef6\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528 SQLite\u3001Room\u3001Realm \u9084\u662f Firebase Realtime Database\uff0c\u958b\u767c\u8005\u90fd\u61c9\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\u548c\u7279\u6027\u4f86\u9078\u64c7\u6700\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u9019\u4e9b\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u60c5\u6cc1\u9032\u884c\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u985e\u578b\u7684\u61c9\u7528\u9700\u6c42\u3002\u7121\u8ad6\u662f\u9700\u8981\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u9748\u6d3b\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Android\u6578\u64da\u5eab\u7ba1\u7406\u8edf\u4ef6\u7684\u529f\u80fd\u8207\u512a\u52e2\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\uff0c\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-58377","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=58377"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58377\/revisions"}],"predecessor-version":[{"id":58378,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58377\/revisions\/58378"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=58377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=58377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=58377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}