查询号码归属地

/**
* 拷贝数据库值files文件夹下
* @param dbName    数据库名称
*/
private void initAddressDB(String dbName) {
//1,在files文件夹下创建同名dbName数据库文件过程
File files = getFilesDir();
File file = new File(files, dbName);
if(file.exists()){
return;
}
InputStream stream = null;
FileOutputStream fos = null;
//2,输入流读取第三方资产目录下的文件
try {
stream = getAssets().open(dbName);
//3,将读取的内容写入到指定文件夹的文件中去
fos = new FileOutputStream(file);
//4,每次的读取内容大小
byte[] bs = new byte[1024];
int temp = -1;
while( (temp = stream.read(bs))!=-1){
fos.write(bs, 0, temp);
}
} catch (Exception e) {
e.printStackTrace();
}finally{
if(stream!=null && fos!=null){
try {
stream.close();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

}

public class AddressDao {
private static final String tag = "AddressDao";
//1,指定访问数据库的路径
public static String path = "data/data/com.itheima.mobilesafe74/files/address.db";
private static String mAddress = "未知号码";
/**传递一个电话号码,开启数据库连接,进行访问,返回一个归属地
* @param phone    查询电话号码
*/
public static String getAddress(String phone){
mAddress = "未知号码";
//正则表达式,匹配手机号码
//手机号码的正则表达式
String regularExpression = "^1[3-8]\\d{9}";
//2,开启数据库连接(只读的形式打开)
SQLiteDatabase db = SQLiteDatabase.openDatabase(path, null, SQLiteDatabase.OPEN_READONLY);
if(phone.matches(regularExpression)){
phone = phone.substring(0,7);
//3,数据库查询
Cursor cursor = db.query("data1", new String[]{"outkey"}, "id = ?", new String[]{phone}, null, null, null);
//4,查到即可
if(cursor.moveToNext()){
String outkey = cursor.getString(0);
Log.i(tag, "outkey = "+outkey);
//5,通过data1查询到的结果,作为外键查询data2
Cursor indexCursor = db.query("data2", new String[]{"location"}, "id = ?", new String[]{outkey}, null, null, null);
if(indexCursor.moveToNext()){
//6,获取查询到的电话归属地
mAddress = indexCursor.getString(0);
Log.i(tag, "address = "+mAddress);
}
}else{
mAddress = "未知号码";
}
}else{
int length = phone.length();
switch (length) {
case 3://119 110 120 114
mAddress = "报警电话";
break;
case 4://119 110 120 114
mAddress = "模拟器";
break;
case 5://10086 99555
mAddress = "服务电话";
break;
case 7:
mAddress = "本地电话";
break;
case 8:
mAddress = "本地电话";
break;
case 11:
//(3+8) 区号+座机号码(外地),查询data2
String area = phone.substring(1, 3);
Cursor cursor = db.query("data2", new String[]{"location"}, "area = ?", new String[]{area}, null, null, null);
if(cursor.moveToNext()){
mAddress = cursor.getString(0);
}else{
mAddress = "未知号码";
}
break;
case 12:
//(4+8) 区号(0791(江西南昌))+座机号码(外地),查询data2
String area1 = phone.substring(1, 4);
Cursor cursor1 = db.query("data2", new String[]{"location"}, "area = ?", new String[]{area1}, null, null, null);
if(cursor1.moveToNext()){
mAddress = cursor1.getString(0);
}else{
mAddress = "未知号码";
}
break;
}
}
return mAddress;
}
}