从php文件中获取生成的值并将其显示在android中

Question

这里我使用php文件将数据从android存储到远程数据库。 现在在我的android项目中我有注册页面。当我按下注册它将调用php文件并将数据存储到数据库。在我的php文件中，我从数据库中获得两个值，即：

  $_SESSION['fullname'] = $row['fullname'];
  $_SESSION['vault_no'] = $row['vault_no'];

现在，当按下注册按钮时，我必须在单独的活动中显示这些值（fullname和vault_no）。我需要添加什么额外的代码才能实现这一点..请帮助我..我是android.Thanks的新手..

Register.php

<?php

    session_start();
    define('HOST','localhost');
    define('USER','username');
    define('PASS','password');
    define('DB','dbname');

    $con = mysqli_connect(HOST,USER,PASS,DB) or die('Unable to Connect');

    $salutation = ($_POST['salutation']);
    $fname = trim($_POST['fname']);
    $lname = trim($_POST['lname']);
    $dob = trim($_POST['dob']);
    $mobile = trim($_POST['mobile']);
    $country = trim($_POST['country']);
    $state = trim($_POST['state']);
    $city = trim($_POST['city']);
    $pin = trim($_POST['pin']);

    $sql = "SELECT mobile FROM users WHERE mobile = '$mobile' LIMIT 1";
    $result = mysqli_query($con,$sql);

    if(mysqli_fetch_array($result))
    {
        $response["error"] = true;
        $response["error_msg"] = "user already existed with" . $mobile;
        echo json_encode($response);
    }
    else
    {
        $characters = '0123456789';
        $uuid = '';
        $random_string_length = 5;

        for ($i = 0; $i < $random_string_length; $i++)
        {
            $uuid .= $characters[rand(0, strlen($characters) - 1)];
        }

        $fullname = $fname . " " . $lname;
        $vault_no = $salutation . "" . $country . "" . $pin . "" . $uuid;

        $sql = "insert into users (salutation,fname,lname,fullname,"
        ."dob,mobile,country,state,city,pin,unique_id,vault_no,created_at) "
        ."values ('$salutation','$fname','$lname','$fullname',"
        ."'$city','$pin','$uuid','$vault_no',now())";

        if(mysqli_query($con,$sql))
        {
            $sql = "SELECT * FROM users WHERE mobile = '$mobile' LIMIT 1";
            $result = mysqli_query($con,$sql);

            while($row = mysqli_fetch_array($result))
            {
                $response["error"] = false;
                $_SESSION['fullname'] = $row['fullname'];
                $_SESSION['vault_no'] = $row['vault_no'];
                $response['fullname'] = $row['fullname'];
                $response['vault_no'] = $row['vault_no'];
                echo json_encode($response);
            }
        }
        else
        {
            $response["error"] = true;
            $response["error_msg"] = "Unknown error occurred in registration!";

            echo json_encode($response);
        }
    }

    mysqli_close($con);

?>

<script>
    alert("your message");
    document.location = "formprofile.php"
</script>

MainActivity.java （注册页面）

package com.example.server;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

@SuppressWarnings({ "deprecation", "unused" })
public class MainActivity extends Activity
{

    // array to save Salutation code
    private static final int[] SalutationCode
        = new int[]{0,1,2};

    // array to show Salutation
    private static final String[] Salutation
        = new String[]{"Salutation","Mr","Ms"};

    // array to save Country code
    private static final int[] CountryCode
        = new int[]{0,91};

    // array to show Country name.
    private static final String[] Country
        = new String[]{"Country","India"};

    // array to save City code
    private static final int[] CityCode
        = new int[]{0,1};

    // array to show City list
    private static final String[] City
        = new String[]{"City","Bangalore"};

    // array to save State code
    private static final int[] StateCode
        = new int[]{0,1};

    // array to show State list
    private static final String[] State
        = new String[]{"State","Karnataka"};

    int selectedAreaCode;
    private Spinner spin;
    private Spinner spin1;
    private Spinner spin2;
    private Spinner spin3;
    private EditText editTextFname;
    private EditText editTextLname;
    private EditText editTextDob;
    private EditText editTextMobile;
    private EditText editTextPin;
    private Button register;
    //private Button login;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        spin=(Spinner)
            findViewById(R.id.spinner1);
        spin1=(Spinner)
            findViewById(R.id.spinner2);
        spin2=(Spinner)
            findViewById(R.id.spinner3);
        spin3=(Spinner)
            findViewById(R.id.spinner4);
        editTextFname=(EditText)
            findViewById(R.id.editTextFname);
        editTextLname=(EditText)
            findViewById(R.id.editTextLname);
        editTextDob=(EditText)
            findViewById(R.id.editTextDob);
        editTextMobile=(EditText)
            findViewById(R.id.editTextMobile);
        editTextPin=(EditText)
            findViewById(R.id.editTextPin);

        ArrayAdapter<String> adpt_area
            = new ArrayAdapter<String>(this,
                android.R.layout.simple_spinner_item,
                Salutation);

        adpt_area.setDropDownViewResource(
            android.R.layout.simple_spinner_dropdown_item);

        spin.setAdapter(adpt_area);

       /* ArrayAdapter<CharSequence> spinner1
                = ArrayAdapter.createFromResource(this,
                R.array.country_arrays,
                android.R.layout.simple_spinner_item);
          spinner1.setDropDownViewResource(
                android.R.layout.simple_spinner_dropdown_item);
          spin1.setAdapter(spinner1);
      */

        ArrayAdapter<String> adpt_country
            = new ArrayAdapter<String>(this,
                android.R.layout.simple_spinner_item, Country);
        adpt_country.setDropDownViewResource(
            android.R.layout.simple_spinner_dropdown_item);
        spin1.setAdapter(adpt_country);

        ArrayAdapter<String> adpt_city
            = new ArrayAdapter<String>(this,
                android.R.layout.simple_spinner_item, City);
        adpt_city.setDropDownViewResource(
            android.R.layout.simple_spinner_dropdown_item);
        spin2.setAdapter(adpt_city);

        ArrayAdapter<String> adpt_state
            = new ArrayAdapter<String>(this,
                android.R.layout.simple_spinner_item, State);
        adpt_state.setDropDownViewResource(
            android.R.layout.simple_spinner_dropdown_item);
        spin3.setAdapter(adpt_state);

    }

    public void Register(View view)
    {
        String fname =
            editTextFname.getText().toString();
        String lname =
            editTextLname.getText().toString();
        String dob =
            editTextDob.getText().toString();
        String mobile =
            editTextMobile.getText().toString();
        String pin =
            editTextPin.getText().toString();

        int selectedPosition =
            spin.getSelectedItemPosition();
        // get area code based on value selected in spinner
        String salutation =
            String.valueOf(SalutationCode[selectedPosition]);

        int selectedPosition1 =
            spin1.getSelectedItemPosition();
        // get area code based on value selected in spinner
        String country =
            String.valueOf(CountryCode[selectedPosition1]);

        int selectedPosition2 =
            spin2.getSelectedItemPosition();
        // get area code based on value selected in spinner
        String state =
            String.valueOf(StateCode[selectedPosition2]);

        int selectedPosition3 =
            spin3.getSelectedItemPosition();
        // get area code based on value selected in spinner
        String city =
            String.valueOf(CityCode[selectedPosition3]);

        insertToDatabase(salutation,fname,lname,
                dob,mobile,country,state,city,pin);
    }

    private void insertToDatabase(String salutation,
        String fname, String lname,String dob, String mobile,
        String country, String state, String city, String pin)
    {
        class SendPostReqAsyncTask
            extends AsyncTask<String, Void, String>
        {
            @SuppressWarnings({"unused","deprecation"}) @Override
            protected String doInBackground(String... params)
            {
                @SuppressWarnings("unused")
                String paramSalutation = params[0];
                String paramFname = params[1];
                String paramLname = params[2];
                String paramDob = params[3];
                String paramMobile = params[4];
                String paramCountry = params[5];
                String paramState = params[6];
                String paramCity = params[7];
                String paramPin = params[8];
                //InputStream is = null;
                String fname =
                    editTextFname.getText().toString();
                String lname =
                    editTextLname.getText().toString();
                String dob =
                    editTextDob.getText().toString();
                String mobile =
                    editTextMobile.getText().toString();
                String pin =
                    editTextPin.getText().toString();

                 int selectedPosition
                     = spin.getSelectedItemPosition();
                 // get area code based on value selected in spinner
                 String salutation
                     = String.valueOf(
                     SalutationCode[selectedPosition]);

                 int selectedPosition1
                     = spin1.getSelectedItemPosition();
                 // get area code based on value selected in spinner
                 String country
                     = String.valueOf(
                     CountryCode[selectedPosition1]);

                 int selectedPosition2
                     = spin2.getSelectedItemPosition();
                 // get area code based on value selected in spinner
                 String state
                     = String.valueOf(
                     StateCode[selectedPosition2]);

                 int selectedPosition3
                     = spin3.getSelectedItemPosition();
                 // get area code based on value selected in spinner
                 String city
                     = String.valueOf(
                     CityCode[selectedPosition3]);

                List<NameValuePair> nameValuePairs
                    = new ArrayList<NameValuePair>();
                nameValuePairs.add(new
                    BasicNameValuePair("salutation", salutation));
                nameValuePairs.add(new
                    BasicNameValuePair("fname", fname));
                nameValuePairs.add(new
                    BasicNameValuePair("lname", lname));
                nameValuePairs.add(new
                    BasicNameValuePair("dob", dob));
                nameValuePairs.add(new
                    BasicNameValuePair("mobile", mobile));
                nameValuePairs.add(new
                    BasicNameValuePair("country", country));
                nameValuePairs.add(new
                    BasicNameValuePair("state", state));
                nameValuePairs.add(new
                    BasicNameValuePair("city", city));
                nameValuePairs.add(new
                    BasicNameValuePair("pin", pin));

                try
                {
                    HttpClient httpClient = new DefaultHttpClient();
                    HttpPost httpPost
                        = new HttpPost("http://oursite/regsiter.php");
                    httpPost.setEntity(new
                        UrlEncodedFormEntity(nameValuePairs));
                    HttpResponse response
                        = httpClient.execute(httpPost);
                    HttpEntity entity = response.getEntity();
                    //is = entity.getContent();
                }
                catch (ClientProtocolException e)
                { }
                catch (IOException e)
                { }

                return "success";
            }

            @Override
            protected void onPostExecute(String result)
            {
                super.onPostExecute(result);

                Toast.makeText(getApplicationContext(),
                          result, Toast.LENGTH_LONG).show();
                //TextView textViewResult = (TextView)
                //        findViewById(R.id.textViewResult);
                //textViewResult.setText("Inserted");
                editTextFname.setText("");
                editTextLname.setText("");
                editTextDob.setText("");
                editTextMobile.setText("");
                editTextPin.setText("");
            }
        }

        SendPostReqAsyncTask sendPostReqAsyncTask
            = new SendPostReqAsyncTask();

        sendPostReqAsyncTask.execute(salutation,fname,
            lname,dob,mobile,country,state,city,pin);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings)
        {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}