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Android\u4e2d\u8fdb\u884c\u6570\u636e\u5b58\u50a8\u6709\u4e09\u79cd\u65b9\u5f0f\uff0c\u4e00\u79cd\u662f\u6587\u4ef6\u5b58\u50a8\uff0c\u4e00\u79cd\u662fSharedPreferences\uff0c\u6700\u540e\u4e00\u79cd\u5c31\u662fSQLiteDatabase.\u4e0b\u9762\u6765\u770b\u4e0b\u600e\u6837\u4f7f\u7528SQLiteDatabase.<\/p>\n
1.\u9996\u5148\u8981\u521b\u5efa\u4e00\u4e2a\u7c7b\uff0c\u8be5\u7c7b\u7ee7\u627f\u81eaandroid.database.sqlite.SQLiteOpenHelper\uff0c\u7531\u4e8e\u8fd9\u4e2a\u662fabstract class, \u56e0\u6b64\u4f60\u9700\u8981\u5b9e\u73b0\u8be5\u7c7b\u7684\u4e24\u4e2a\u65b9\u6cd5\uff0c\u4e00\u4e2a\u662fonCreate(),\u4e00\u4e2a\u662fonUpgrade().\u6ce8\uff1a\u4e24\u4e2a\u65b9\u6cd5\u7684\u53c2\u6570\u90fd\u7701\u7565\u4e86\u3002<\/p>\n
\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
\r\npublic class MySQLhelper extends SQLiteOpenHelper {\r\n\tpublic static final String tableName = "localContact";\r\n\tpublic static final String ID = "_id";\r\n\tpublic static final String nameRow = "name";\r\n\tpublic static final String numRow = "mobileNum";\r\n\tpublic MySQLhelper(Context context, String name, CursorFactory factory, int version) {\r\n\t\tsuper(context, name, factory, version);\r\n\t}\r\n\t@Override\r\n\tpublic void onCreate(SQLiteDatabase db) {\r\n\t\tdb.execSQL("CREATE TABLE IF NOT EXISTS "+tableName+" ("\/*+ID+" INTEGER PRIMARY KEY,"*\/+nameRow+" VARCHAR,"+numRow+" VARCHAR)");\r\n\t}\r\n\t@Override\r\n\tpublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {\r\n\t\t\/\/ \u5220\u9664\u4ee5\u524d\u7684\u65e7\u8868\uff0c\u521b\u5efa\u4e00\u5f20\u65b0\u7684\u7a7a\u8868\r\n\t\tdb.execSQL("DROP TABLE IF EXISTS " + tableName);\r\n\t\tonCreate(db);\r\n\t}\r\n}\r\n<\/pre>\n2.\u5728activity\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2aMySQLhelper\u7684\u5b9e\u4f8b<\/p>\n
\r\nMySQLhelper sqlHelper = new MySQLhelper(this,DBname,null,1);\r\nSQLiteDatabase sql = sqlHelper.getWritableDatabase();\r\n<\/pre>\n\u6b64\u65f6\u4fbf\u83b7\u5f97\u4e86\u521a\u521a\u521b\u5efa\u7684\u6570\u636e\u5e93\u5b9e\u4f8b\u7684\u5199\u5165\u6743\u9650\u3002<\/p>\n
3.\u901a\u8fc7\u8c03\u7528\u76f8\u5e94\u7684\u65b9\u6cd5\u5982Insert(),delete()\u7b49\uff0c\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u63d2\u5165\u548c\u5220\u9664\u7684\u64cd\u4f5c<\/p>\n
4.\u793a\u4f8b\uff1a\u4f8b\u5982\u8fdb\u884c\u63d2\u5165\u64cd\u4f5c\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528Insert()\u65b9\u6cd5\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\r\nContentValues tcv = new ContentValues();\r\ntcv.put(MySQLhelper.nameRow, name);\r\ntcv.put(MySQLhelper.numRow, mobilePhone);\r\nsql.insert(MySQLhelper.tableName, null, tcv);\r\n<\/pre>\n\u4e5f\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u6267\u884cSQL\u8bed\u53e5\u7684\u65b9\u5f0f\u6765\u63d2\u5165:<\/p>\n
\r\nsql.execSQL("INSERT INTO "+MySQLhelper.tableName+" ("+MySQLhelper.nameRow+","+MySQLhelper.numRow+") VALUES ('"+name+"','"+mobilePhone+"')");\r\n<\/pre>\n\u4e24\u79cd\u65b9\u5f0f\u6700\u540e\u7684\u6548\u679c\u90fd\u662f\u4e00\u6837\u7684\uff0c\u5176\u4ed6\u7684\u64cd\u4f5c\u90fd\u7c7b\u4f3c\uff0c\u4e0d\u4e00\u4e00\u5217\u4e3e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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