将带有用户名和密码的文件保存到SD卡并读取它是否存在于数据库中

Question

guys i two edit text values which i need to save to text file into sdcard which will be basically username and password.

After storing it i need to read that file and check whether the username and password which is in text file is in database or not.

I am using php and mysql as database.

Code for saving the file to sdcard:

try {
            File myFile = new File("/sdcard/mysdfile.txt");
            myFile.createNewFile();
            FileOutputStream fOut = new FileOutputStream(myFile);
            OutputStreamWriter myOutWriter = 
                                    new OutputStreamWriter(fOut);
            myOutWriter.append(txtData.getText());
            myOutWriter.close();
            fOut.close();
            Toast.makeText(getBaseContext(),
                    "Done writing SD 'mysdfile.txt'",
                    Toast.LENGTH_SHORT).show();
        } catch (Exception e) {
            Toast.makeText(getBaseContext(), e.getMessage(),
                    Toast.LENGTH_SHORT).show();
        }

how to acheive this please help

Answer 1

To read username and password from file you can try something like this and change it accordint to what you need:

 int rme = 0;    
 FileInputStream fstream = new FileInputStream("file path");
 DataInputStream in = new DataInputStream(fstream);
 BufferedReader br = new BufferedReader(new InputStreamReader(in));
 String str;

// read data accoridng your need in my case this is how i did it in java.

 while ((str = br.readLine()) != null) {
  rememberme= str.toString();
  rme=Integer.parseInt(rememberme);
  str = br.readLine();
  uname=str.toString();
  str = br.readLine();
  password=str.toString();        
 } 
//rme=Integer.parseInt(uname);

return rme;