android 读取本地数据库db文件（Android sqlite）

File file = new File(mWorkPath);

if (!file.exists()){

boolean b = file.mkdirs();

}

}

public static String getDBpath() {

File file = new File(mWorkPath + DB_PATH_NAME);

if (!file.exists())

file.mkdirs();

return mWorkPath + DB_PATH_NAME;

}

public static void copyAccessDB(Context context) {

try {

String[] dbNames = context.getAssets().list(“db”);

for (String dbName : dbNames) {

long startTime = System.currentTimeMillis();

String filePath = FileUtil.getDBpath() + dbName;

File dbFile = new File(filePath);

if (!dbFile.exists()) {

FileOutputStream fos = null;

try {

dbFile.createNewFile();

}catch (Exception e){

}

InputStream is = context.getAssets().open(“db/” + dbName);

fos =