私はAndroidアプリケーションの初心者です。ウェブサイトから登録済みのユーザーのみがログインできるログインページを作成しました。ユーザーがユーザー名とパスワードを入力したら、登録ユーザーを認証します。ユーザー名とパスワードを認証するにはどうすればよいですか。私は次のコードを使用しています。これを見て助けてください。ログインボタンをクリックすると、エラーが表示されます。
Main.java
public class Main extends Activity implements OnClickListener {
Button ok,back,exit;
TextView result;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Login button clicked
ok = (Button)findViewById(R.id.btn_login);
ok.setOnClickListener(this);
result = (TextView)findViewById(R.id.lbl_result);
}
public void postLoginData() {
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
/* login.php returns true if username and password is equal to saranga */
HttpPost httppost = new HttpPost("http://yoursite.com/wp-login.php");
try {
// Add user name and password
EditText uname = (EditText)findViewById(R.id.txt_username);
String username = uname.getText().toString();
EditText pword = (EditText)findViewById(R.id.txt_password);
String password = pword.getText().toString();
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("username", username));
nameValuePairs.add(new BasicNameValuePair("password", password));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
Log.w("", "Execute HTTP Post Request");
HttpResponse response = httpclient.execute(httppost);
String str = inputStreamToString(response.getEntity().getContent()).toString();
Log.w("", str);
if(str.toString().equalsIgnoreCase("true"))
{
Log.w("", "TRUE");
result.setText("Login successful");
}else
{
Log.w("", "FALSE");
result.setText(str);
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private StringBuilder inputStreamToString(InputStream is) {
String line = "";
StringBuilder total = new StringBuilder();
// Wrap a BufferedReader around the InputStream
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
// Read response until the end
try {
while ((line = rd.readLine()) != null) {
total.append(line);
}
} catch (IOException e) {
e.printStackTrace();
}
// Return full string
return total;
}
public void onClick(View view) {
if(view == ok){
postLoginData();
}
}
}
エラー
Execute HTTP Post Request
Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required.
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FALSE