{"id":58449,"date":"2024-10-12T20:44:15","date_gmt":"2024-10-12T12:44:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/58449\/"},"modified":"2024-10-12T20:44:15","modified_gmt":"2024-10-12T12:44:15","slug":"android%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a6%8f%e5%8a%83%ef%bc%9a%e6%9c%ac%e5%9c%b0%e5%ad%98%e5%84%b2%e7%ae%a1%e7%90%86%e5%85%a8%e8%a7%a3%e6%9e%90-android%e6%9c%ac%e5%9c%b0%e5%ad%98%e5%84%b2%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/58449\/","title":{"rendered":"Android\u6578\u64da\u5eab\u898f\u5283\uff1a\u672c\u5730\u5b58\u5132\u7ba1\u7406\u5168\u89e3\u6790 (android\u672c\u5730\u5b58\u5132\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"android%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a6%8f%e5%8a%83%ef%bc%9a%e6%9c%ac%e5%9c%b0%e5%ad%98%e5%84%b2%e7%ae%a1%e7%90%86%e5%85%a8%e8%a7%a3%e6%9e%90-RmWGPDhZqY\">Android\u6578\u64da\u5eab\u898f\u5283\uff1a\u672c\u5730\u5b58\u5132\u7ba1\u7406\u5168\u89e3\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u79fb\u52d5\u61c9\u7528\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5b58\u5132\u662f\u81f3\u95dc\u91cd\u8981\u7684\u4e00\u74b0\u3002Android\u5e73\u53f0\u63d0\u4f9b\u4e86\u591a\u7a2e\u672c\u5730\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eAndroid\u7684\u672c\u5730\u5b58\u5132\u7ba1\u7406\uff0c\u7279\u5225\u662f\u6578\u64da\u5eab\u7684\u898f\u5283\u8207\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e6%9c%ac%e5%9c%b0%e5%ad%98%e5%84%b2%e7%9a%84%e9%81%b8%e6%93%87-RmWGPDhZqY\">\u672c\u5730\u5b58\u5132\u7684\u9078\u64c7<\/h2>\n<p>Android\u63d0\u4f9b\u4e86\u5e7e\u7a2e\u672c\u5730\u5b58\u5132\u9078\u64c7\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>SharedPreferences\uff1a<\/strong>\u9069\u5408\u5b58\u5132\u5c0f\u578b\u6578\u64da\uff0c\u5982\u7528\u6236\u8a2d\u7f6e\u548c\u504f\u597d\u3002<\/li>\n<li><strong>SQLite\u6578\u64da\u5eab\uff1a<\/strong>\u9069\u5408\u5b58\u5132\u7d50\u69cb\u5316\u6578\u64da\uff0c\u652f\u6301\u8907\u96dc\u67e5\u8a62\u3002<\/li>\n<li><strong>\u6587\u4ef6\u7cfb\u7d71\uff1a<\/strong>\u9069\u5408\u5b58\u5132\u5927\u578b\u6587\u4ef6\uff0c\u5982\u5716\u7247\u548c\u97f3\u983b\u3002<\/li>\n<\/ul>\n<h2 id=\"sqlite%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e4%bd%bf%e7%94%a8-RmWGPDhZqY\">SQLite\u6578\u64da\u5eab\u7684\u4f7f\u7528<\/h2>\n<p>SQLite\u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684\u95dc\u806f\u6578\u64da\u5eab\uff0c\u5167\u7f6e\u65bcAndroid\u7cfb\u7d71\u4e2d\u3002\u5b83\u4e0d\u9700\u8981\u984d\u5916\u7684\u4f3a\u670d\u5668\u652f\u6301\uff0c\u9069\u5408\u7528\u65bc\u672c\u5730\u6578\u64da\u5b58\u5132\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SQLite\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab-RmWGPDhZqY\">1. \u5275\u5efa\u6578\u64da\u5eab<\/h3>\n<pre><code>public class DatabaseHelper extends SQLiteOpenHelper {\n    private static final String DATABASE_NAME = \"mydatabase.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, age INTEGER)\";\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<\/code><\/pre>\n<h3 id=\"2-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-RmWGPDhZqY\">2. \u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>public void addUser(String name, int age) {\n    SQLiteDatabase db = this.getWritableDatabase();\n    ContentValues values = new ContentValues();\n    values.put(\"name\", name);\n    values.put(\"age\", age);\n    db.insert(\"users\", null, values);\n    db.close();\n}\n<\/code><\/pre>\n<h3 id=\"3-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-RmWGPDhZqY\">3. \u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>public Cursor getAllUsers() {\n    SQLiteDatabase db = this.getReadableDatabase();\n    return db.rawQuery(\"SELECT * FROM users\", null);\n}\n<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-RmWGPDhZqY\">\u6578\u64da\u5eab\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u9032\u884cAndroid\u6578\u64da\u5eab\u898f\u5283\u6642\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7570\u6b65\u64cd\u4f5c\uff1a<\/strong>\u907f\u514d\u5728\u4e3b\u7dda\u7a0b\u4e2d\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u4ee5\u63d0\u9ad8\u61c9\u7528\u6027\u80fd\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u7248\u672c\u7ba1\u7406\uff1a<\/strong>\u5728\u6578\u64da\u5eab\u7d50\u69cb\u8b8a\u66f4\u6642\uff0c\u78ba\u4fdd\u6b63\u78ba\u8655\u7406\u7248\u672c\u5347\u7d1a\u3002<\/li>\n<li><strong>\u6578\u64da\u5b89\u5168\u6027\uff1a<\/strong>\u8003\u616e\u52a0\u5bc6\u654f\u611f\u6578\u64da\uff0c\u4fdd\u8b77\u7528\u6236\u96b1\u79c1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-RmWGPDhZqY\">\u7d50\u8ad6<\/h2>\n<p>Android\u7684\u672c\u5730\u5b58\u5132\u7ba1\u7406\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u61c9\u7528\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u3002SQLite\u4f5c\u70ba\u4e00\u500b\u8f15\u91cf\u7d1a\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u9069\u5408\u5927\u591a\u6578\u61c9\u7528\u7684\u6578\u64da\u5b58\u5132\u9700\u6c42\u3002\u901a\u904e\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u61c9\u7528\u7684\u6027\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u60a8\u53ef\u4ee5\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\uff0c\u63a2\u7d22\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u5f8c\u7aef\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eAndroid\u672c\u5730\u5b58\u5132\u6578\u64da\u5eab\u7684\u898f\u5283\u8207\u7ba1\u7406\uff0c\u63d0\u4f9b\u5168\u9762\u89e3\u6790\u8207\u6700\u4f73\u5be6\u8e10\uff0c\u52a9\u4f60\u9ad8\u6548\u7ba1\u7406\u6578\u64da\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-58449","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58449","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=58449"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58449\/revisions"}],"predecessor-version":[{"id":58450,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58449\/revisions\/58450"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=58449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=58449"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=58449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}