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String phone = (String) params[2];
String password = (String) params[3];

String link = "http://192.168.0.77/db4.php";
String data = URLEncoder.encode("id", "UTF-8") + "=" +
URLEncoder.encode(id, "UTF-8");
data += "&" + URLEncoder.encode("name", "UTF-8") + "=" +
URLEncoder.encode(name, "UTF-8");
data += "&" + URLEncoder.encode("phone", "UTF-8") + "=" +
URLEncoder.encode(phone, "UTF-8");
data += "&" + URLEncoder.encode("password", "UTF-8") + "=" +
URLEncoder.encode(password, "UTF-8");

URL url = new URL(link);
URLConnection conn = url.openConnection();

conn.setDoOutput(true);
OutputStreamWriter wr = new
OutputStreamWriter(conn.getOutputStream());

wr.write(data);
wr.flush();

BufferedReader reader = new BufferedReader(new
InputStreamReader(conn.getInputStream()));

StringBuilder sb = new StringBuilder();
String line = null;

// Read Server Response
while ((line = reader.readLine()) != null) {
sb.append(line);
break;
}
return sb.toString();
} catch (Exception e) {
return new String("Exception: " + e.getMessage());
}
}
}
// id 입력 확인
if( mEditId.getText().toString().length() == 0 ) {
Toast.makeText(JoinActivity.this, " 아이디를 입력하세요!",
Toast.LENGTH_SHORT).show();
mEditId.requestFocus();

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