我无法连接到mysql数据库登录,似乎无法找到错误,因为我是初学者。它总是显示OOP!有些不对劲。连接问题。我在AndroidManifest中包含了网络和互联网权限。我不知道它是php还是java
MainActivity.java
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class MainActivity extends AppCompatActivity {
public static final int CONNECTION_TIMEOUT = 10000;
public static final int READ_TIMEOUT = 15000;
private EditText etName;
private EditText etPassword;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
etName = (EditText) findViewById(R.id.username);
etPassword = (EditText) findViewById(R.id.password);
}
/*public void openSales(View view){
Intent i = new Intent(this, menuActivity.class);
startActivity(i);
}*/
public void checkLogin(View arg0) {
final String name = etName.getText().toString();
final String password = etPassword.getText().toString();
new AsyncLogin().execute(name,password);
}
private class AsyncLogin extends AsyncTask<String, String, String> {
ProgressDialog pdLoading = new ProgressDialog(MainActivity.this);
HttpURLConnection conn;
URL url = null;
@Override
protected void onPreExecute() {
super.onPreExecute();
pdLoading.setMessage("\tLoading...");
pdLoading.setCancelable(false);
pdLoading.show();
}
@Override
protected String doInBackground(String... params) {
try {
url = new URL("http://localhost/THESIS/database.inc.php");
} catch (MalformedURLException e) {
e.printStackTrace();
return "exception";
}
try {
conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(READ_TIMEOUT);
conn.setConnectTimeout(CONNECTION_TIMEOUT);
conn.setRequestMethod("POST");
conn.setDoInput(true);
conn.setDoOutput(true);
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("username", params[0])
.appendQueryParameter("password", params[1]);
String query = builder.build().getEncodedQuery();
OutputStream os = conn.getOutputStream();
BufferedWriter writer = new BufferedWriter(
new OutputStreamWriter(os, "UTF-8"));
writer.write(query);
writer.flush();
writer.close();
os.close();
conn.connect();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
return "exception";
}
try {
int response_code = conn.getResponseCode();
if (response_code == HttpURLConnection.HTTP_OK) {
InputStream input = conn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
StringBuilder result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
return (result.toString());
} else {
return ("unsuccessful");
}
} catch (IOException e) {
e.printStackTrace();
return "exception";
} finally {
conn.disconnect();
}
}
@Override
protected void onPostExecute(String result) {
pdLoading.dismiss();
if (result.equalsIgnoreCase("true")) {
Intent intent = new Intent(MainActivity.this, menuActivity.class);
startActivity(intent);
MainActivity.this.finish();
} else if (result.equalsIgnoreCase("false")) {
Toast.makeText(MainActivity.this, "Invalid email or password", Toast.LENGTH_LONG).show();
} else if (result.equalsIgnoreCase("exception") || result.equalsIgnoreCase("unsuccessful")) {
Toast.makeText(MainActivity.this, "OOPs! Something went wrong. Connection Problem.", Toast.LENGTH_LONG).show();
}
}
}
}
这是php文件
$servername = "db4free.net:3307/******";
$username = "*****";
$password = "*********";
$dbname = "*******";
try {[enter image description here][1]
$conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(PDOException $e)
{
die("OOPs something went wrong");
}
if(isset($_POST['username']) && isset($_POST['password']))
{
// Innitialize Variable
$result='';
$username = $_POST['username'];
$password = $_POST['password'];
// Query database for row exist or not
$sql = 'SELECT * FROM asd WHERE name = :username AND pass = :password';
$stmt = $conn->prepare($sql);
$stmt->bindParam(':username', $username, PDO::PARAM_STR);
$stmt->bindParam(':password', $password, PDO::PARAM_STR);
$stmt->execute();
if($stmt->rowCount())
{
$result="true";
}
elseif(!$stmt->rowCount())
{
$result="false";
}
// send result back to android
echo $result;
}
这是事件日志的img TIA