{"id":58439,"date":"2024-10-12T20:40:16","date_gmt":"2024-10-12T12:40:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/58439\/"},"modified":"2024-10-12T20:40:16","modified_gmt":"2024-10-12T12:40:16","slug":"android%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e5%b0%81%e8%a3%9d%e9%a1%9e%ef%bc%9a%e6%9b%b4%e5%a5%bd%e7%9a%84%e9%96%8b%e7%99%bc%e9%ab%94%e9%a9%97-android%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/58439\/","title":{"rendered":"Android\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\uff1a\u66f4\u597d\u7684\u958b\u767c\u9ad4\u9a57 (android\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e)"},"content":{"rendered":"<h1 id=\"android%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e5%b0%81%e8%a3%9d%e9%a1%9e%ef%bc%9a%e6%9b%b4%e5%a5%bd%e7%9a%84%e9%96%8b%e7%99%bc%e9%ab%94%e9%a9%97-FnvTQeDcJL\">Android\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\uff1a\u66f4\u597d\u7684\u958b\u767c\u9ad4\u9a57<\/h1>\n<p>\u5728Android\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u64cd\u4f5c\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u8907\u96dc\u6027\u589e\u52a0\uff0c\u958b\u767c\u8005\u9700\u8981\u4e00\u7a2e\u66f4\u9ad8\u6548\u3001\u66f4\u7c21\u55ae\u7684\u65b9\u5f0f\u4f86\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u9019\u6642\uff0c\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\u7684\u51fa\u73fe\uff0c\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u958b\u767c\u9ad4\u9a57\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e5%b0%81%e8%a3%9d%e9%a1%9e%ef%bc%9f-FnvTQeDcJL\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\u662f\u4e00\u7a2e\u5c07\u6578\u64da\u5eab\u64cd\u4f5c\u9032\u884c\u5c01\u88dd\u7684\u5de5\u5177\uff0c\u65e8\u5728\u7c21\u5316\u6578\u64da\u5eab\u7684\u589e\u522a\u6539\u67e5\uff08CRUD\uff09\u64cd\u4f5c\u3002\u9019\u7a2e\u5c01\u88dd\u985e\u901a\u5e38\u6703\u63d0\u4f9b\u4e00\u7d44\u7c21\u55ae\u6613\u7528\u7684\u63a5\u53e3\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u800c\u4e0d\u9700\u8981\u95dc\u5fc3\u5e95\u5c64\u7684\u5be6\u73fe\u7d30\u7bc0\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e5%b0%81%e8%a3%9d%e9%a1%9e%ef%bc%9f-FnvTQeDcJL\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\uff1f<\/h2>\n<ul>\n<li><strong>\u63d0\u9ad8\u958b\u767c\u6548\u7387\uff1a<\/strong>\u5c01\u88dd\u985e\u53ef\u4ee5\u6e1b\u5c11\u91cd\u8907\u4ee3\u78bc\uff0c\u958b\u767c\u8005\u53ea\u9700\u8abf\u7528\u5c01\u88dd\u597d\u7684\u65b9\u6cd5\u5373\u53ef\u5b8c\u6210\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u964d\u4f4e\u932f\u8aa4\u7387\uff1a<\/strong>\u901a\u904e\u7d71\u4e00\u7684\u63a5\u53e3\uff0c\u958b\u767c\u8005\u4e0d\u5bb9\u6613\u51fa\u932f\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u8907\u96dc\u7684SQL\u8a9e\u53e5\u6642\u3002<\/li>\n<li><strong>\u6613\u65bc\u7dad\u8b77\uff1a<\/strong>\u7576\u6578\u64da\u5eab\u7d50\u69cb\u767c\u751f\u8b8a\u5316\u6642\uff0c\u53ea\u9700\u4fee\u6539\u5c01\u88dd\u985e\u4e2d\u7684\u4ee3\u78bc\uff0c\u800c\u4e0d\u9700\u8981\u5728\u6bcf\u500b\u4f7f\u7528\u5230\u7684\u5730\u65b9\u9032\u884c\u4fee\u6539\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e5%b0%81%e8%a3%9d%e9%a1%9e%ef%bc%9f-FnvTQeDcJL\">\u5982\u4f55\u5be6\u73fe\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\uff1f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\u7684\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n<pre><code>public class DatabaseHelper extends SQLiteOpenHelper {\n    private static final String DATABASE_NAME = \"example.db\";\n    private static final int DATABASE_VERSION = 1;\n\n    public DatabaseHelper(Context context) {\n        super(context, DATABASE_NAME, null, DATABASE_VERSION);\n    }\n\n    @Override\n    public void onCreate(SQLiteDatabase db) {\n        String createTable = \"CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT)\";\n        db.execSQL(createTable);\n    }\n\n    @Override\n    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {\n        db.execSQL(\"DROP TABLE IF EXISTS users\");\n        onCreate(db);\n    }\n\n    public void addUser(String name) {\n        SQLiteDatabase db = this.getWritableDatabase();\n        ContentValues values = new ContentValues();\n        values.put(\"name\", name);\n        db.insert(\"users\", null, values);\n        db.close();\n    }\n\n    public List getAllUsers() {\n        List users = new ArrayList();\n        SQLiteDatabase db = this.getReadableDatabase();\n        Cursor cursor = db.query(\"users\", new String[]{\"name\"}, null, null, null, null, null);\n        if (cursor.moveToFirst()) {\n            do {\n                users.add(cursor.getString(0));\n            } while (cursor.moveToNext());\n        }\n        cursor.close();\n        db.close();\n        return users;\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>DatabaseHelper<\/code> \u7684\u985e\uff0c\u7e7c\u627f\u81ea <code>SQLiteOpenHelper<\/code>\u3002\u9019\u500b\u985e\u63d0\u4f9b\u4e86\u6dfb\u52a0\u7528\u6236\u548c\u7372\u53d6\u6240\u6709\u7528\u6236\u7684\u529f\u80fd\uff0c\u7c21\u5316\u4e86\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u904e\u7a0b\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e5%b0%81%e8%a3%9d%e9%a1%9e%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-FnvTQeDcJL\">\u4f7f\u7528\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u4fdd\u6301\u63a5\u53e3\u7c21\u55ae\uff1a<\/strong>\u5c01\u88dd\u985e\u7684\u63a5\u53e3\u61c9\u8a72\u7c21\u55ae\u660e\u77ad\uff0c\u65b9\u4fbf\u958b\u767c\u8005\u4f7f\u7528\u3002<\/li>\n<li><strong>\u8655\u7406\u7570\u5e38\uff1a<\/strong>\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0c\u61c9\u8a72\u59a5\u5584\u8655\u7406\u7570\u5e38\u60c5\u6cc1\uff0c\u907f\u514d\u61c9\u7528\u5d29\u6f70\u3002<\/li>\n<li><strong>\u4f7f\u7528\u7570\u6b65\u64cd\u4f5c\uff1a<\/strong>\u70ba\u4e86\u907f\u514d\u963b\u585e\u4e3b\u7dda\u7a0b\uff0c\u5efa\u8b70\u4f7f\u7528\u7570\u6b65\u64cd\u4f5c\u4f86\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FnvTQeDcJL\">\u7e3d\u7d50<\/h2>\n<p>\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\u5728Android\u958b\u767c\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u7684\u89d2\u8272\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u958b\u767c\u6548\u7387\u548c\u964d\u4f4e\u932f\u8aa4\u7387\u3002\u901a\u904e\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5c08\u6ce8\u65bc\u61c9\u7528\u7684\u5176\u4ed6\u90e8\u5206\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u958b\u767c\u9ad4\u9a57\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u958b\u767c\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Android\u6578\u64da\u5eab\u64cd\u4f5c\u5c01\u88dd\u985e\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u8b93\u958b\u767c\u8005\u4eab\u53d7\u66f4\u6d41\u66a2\u7684\u7de8\u7a0b\u9ad4\u9a57\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-58439","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58439","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=58439"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58439\/revisions"}],"predecessor-version":[{"id":58440,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58439\/revisions\/58440"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=58439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=58439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=58439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}