知識點：

1 數據庫文件拷貝

2 使用SQLlite完成手機歸屬地查找

1?數據庫文件拷貝

/*** 將數據庫拷貝到getFilesDir()中* * @param dbName*/public void copyDB(String dbName) {InputStream in = null;FileOutputStream out = null;File file = new File(getFilesDir(), dbName);if (file.exists()) { //如果數據已經存在，不進行更新數據庫return;}try {in = getAssets().open(dbName);out = new FileOutputStream(file);int len = 0;byte[] buffer = new byte[1024];while ((len = in.read(buffer)) != -1) {out.write(buffer, 0, len);}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally {try {in.close();out.close();} catch (Exception e) {e.printStackTrace();}}}

address.db放在assets中：

經過拷貝后，address.db放入在getFilesDir()+dbName（文件名address.db）中。

2?使用SQLlite完成手機歸屬地查找

package com.example.mobliesoft.Activity.DB;import android.database.Cursor; import android.database.sqlite.SQLiteDatabase;public class AddressDao {public static final String PATH = "data/data/com.example.mobliesoft/files/address.db";public String getAddress(String phonenum) {String address = "未知號碼";//打開數據庫SQLiteDatabase database = SQLiteDatabase.openDatabase(PATH, null, SQLiteDatabase.OPEN_READONLY);if (phonenum.matches("^1[3-8]\\d{9}$")) {//數據庫中查找數據Cursor cursor = database.rawQuery("select location from data2 where id=(select outkey from data1 where id=?)",new String[] { phonenum.substring(0, 7) });if (cursor.moveToNext()) {address = cursor.getString(0);}else{address="未知號碼";}cursor.close();} else {address="請輸入正確號碼";}database.close();return address;}}
臥槽，先這樣吧，這塊兒真心不給力啊~

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