PHP Response to HTTP Request From Android

问题

I've searched alot to find a way to send HTTP Response to Android Application that sends HTTP Request with Username and Password

My problem is I want to take the username and password from android application and send back the values for that user from 3 columns (toggle1,toggle2,toggle3) in the database

All examples I've seen now only send 1 or 0 just for checking username and password if it's correct or not but I need to send also Columns Data from Database, I Prefer it's not JSON

Activity that sends HTTP Request and Also reads data

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class HttpLogin extends Activity {
    /** Called when the activity is first created. */
    private Button login;
    private EditText username, password;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        login = (Button) findViewById(R.id.login);
        username = (EditText) findViewById(R.id.username);
        password = (EditText) findViewById(R.id.password);

        login.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                String   mUsername = username.getText().toString();
                String  mPassword = password.getText().toString();

                tryLogin(mUsername, mPassword);
            }
        });
    }

    protected void tryLogin(String mUsername, String mPassword)
    {           
        HttpURLConnection connection;
       OutputStreamWriter request = null;

            URL url = null;   
            String response = null;         
            String parameters = "username="+mUsername+"&password="+mPassword;   

            try
            {
                url = new URL("your login URL");
                connection = (HttpURLConnection) url.openConnection();
                connection.setDoOutput(true);
                connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
                connection.setRequestMethod("POST");    

                request = new OutputStreamWriter(connection.getOutputStream());
                request.write(parameters);
                request.flush();
                request.close();            
                String line = "";               
                InputStreamReader isr = new InputStreamReader(connection.getInputStream());
                BufferedReader reader = new BufferedReader(isr);
                StringBuilder sb = new StringBuilder();
                while ((line = reader.readLine()) != null)
                {
                    sb.append(line + "\n");
                }
                // Response from server after login process will be stored in response variable.                
                response = sb.toString();
                // You can perform UI operations here
                Toast.makeText(this,"Message from Server: \n"+ response, 0).show();             
                isr.close();
                reader.close();

            }
            catch(IOException e)
            {
                // Error
            }
    }
}

PHP File That Receives username and password and I need this file to also send database Columns values for the username and password

<?php   
$host="localhost"; // Host name 
$user="test"; // Mysql username 
$pswd="123"; // Mysql password 
$db="pet_home"; // Database name 
//$tbl_name="users"; // Table name

$conn = mysql_connect($host, $user, $pswd);
mysql_select_db($db, $conn);
$username=$_POST['username'];
$password=$_POST['password'];
$result=mysql_query("select * from users where username='$username' and password='$password'")or die (mysql_error());
$count=mysql_num_rows($result);
$row=mysql_fetch_array($result);    
        if ($count > 0){
        echo 1;     
        }else{
        echo 0;
        }
?>

回答1:

The values you want will be in the $row array. You can access them (depending on the column you want) like this $row[0], $row[1], etc.

It looks like the response currently is just the echo'd value 0 or 1

Why not just append them to that string separated by an uncommon character like the pipe or asterisk then split it back up?

Your echo then would be something like

echo 1."|".$row[0]."|".$row[1];

etc.

** Also, I should add the obigitory "hash your passwords and consider security"

回答2:

try this

 try{
                     HttpClient httpclient = new DefaultHttpClient();
                     HttpPost httppost = new HttpPost(url);
                     httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                     HttpResponse response = httpclient.execute(httppost);
                     String the_string_response = convertResponseToString(response);
                     Toast.makeText(getApplicationContext(), "Response " + the_string_response, Toast.LENGTH_LONG).show();
                 }catch(Exception e){
                       Toast.makeText(getApplicationContext(), "ERROR " + e.getMessage(), Toast.LENGTH_LONG).show();
                      System.out.println("Error in http connection "+e.toString());
                 }

来源：https://stackoverflow.com/questions/20575122/php-response-to-http-request-from-android