Mata kuliah : Mobile Technologies (3sks) Dosen Pengampu : Tri Sugihartono, M.Kom Materi : Simpan data ke database Mysql Website : www.atmaluhur.ac.id

1. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
Menambahkan / menyimpan data ke database pada Eclipse
Buat lah database local menggunakan XAMPP dan masuk ke alamat localhost/phpmyadmin
Buat database = “mahasiswa” dan nama tabel “biodata”
Setelah membuat database – buat file php untuk menghubungkan aplikasi
android kita dengan database mysql
Buat file “simpan.php”
<?php
$db_host = "localhost";
$db_user = "root";
$db_pass = "";
$db_name = "mahasiswa";
$koneksi = mysqli_connect($db_host, $db_user, $db_pass, $db_name);
if (mysqli_connect_error()) {
echo 'Gagal melakukan koneksi ke Database
:'.mysqli_connect_error();
}
$nim = $_POST['nim'];
$nama = $_POST['nama'];
$prodi = $_POST['prodi'];

2. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
$query = mysqli_query($koneksi, "INSERT INTO biodata (nim, nama, prodi)
VALUES ('$nim', '$nama','$prodi')");
$result = mysqli_query($koneksi, "SELECT * FROM mahasiswa where nim =
'$nim'");
$row = mysqli_fetch_array($result);
$data = $row[2];
if ($data)
{
echo "0";
} else {
echo "2";
}
mysqli_close($con);
?>
Setelah itu buat lah project baru dengan nama “SimpanDatabase”
Buatlah file java “CustomHttpClient.java”
package com.example.crud;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.params.ConnManagerParams;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
public class CustomHttpClient {
/** The time it takes for our client to timeout */
public static final int HTTP_TIMEOUT = 30 * 1000; // milliseconds
/** Single instance of our HttpClient */
private static HttpClient mHttpClient;
/**
* Get our single instance of our HttpClient object.

3. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
*
* @return an HttpClient object with connection parameters set
*/
private static HttpClient getHttpClient() {
if (mHttpClient == null) {
mHttpClient = new DefaultHttpClient();
final HttpParams params = mHttpClient.getParams();
HttpConnectionParams.setConnectionTimeout(params,
HTTP_TIMEOUT);
HttpConnectionParams.setSoTimeout(params, HTTP_TIMEOUT);
ConnManagerParams.setTimeout(params, HTTP_TIMEOUT);
}
return mHttpClient;
}
/**
* Performs an HTTP Post request to the specified url with the
* specified parameters.
*
* @param url The web address to post the request to
* @param postParameters The parameters to send via the request
* @return The result of the request
* @throws Exception
*/
public static String executeHttpPost(String url,
ArrayList<NameValuePair> postParameters) throws Exception {
BufferedReader in = null;
try {
HttpClient client = getHttpClient();
HttpPost request = new HttpPost(url);
UrlEncodedFormEntity formEntity = new
UrlEncodedFormEntity(postParameters);
request.setEntity(formEntity);
HttpResponse response = client.execute(request);
in = new BufferedReader(new
InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
String result = sb.toString();
return result;
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

4. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
}
/**
* Performs an HTTP GET request to the specified url.
*
* @param url The web address to post the request to
* @return The result of the request
* @throws Exception
*/
public static String executeHttpGet(String url) throws Exception {
BufferedReader in = null;
try {
HttpClient client = getHttpClient();
HttpGet request = new HttpGet();
request.setURI(new URI(url));
HttpResponse response = client.execute(request);
in = new BufferedReader(new
InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
String result = sb.toString();
return result;
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
Setelah itu desain layout activity_main.xml

5. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
Berikut codingan lengkap activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@drawable/bgd">
<ScrollView
android:layout_height="match_parent"
android:layout_width="match_parent"
android:scrollbarStyle="insideInset">
<LinearLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical">
<EditText
android:id="@+id/nim"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android:hint="NIM"
android:paddingRight="10dp" />
<EditText
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="@+id/nama"
android:layout_marginTop="10dp"
android:layout_marginLeft="10dp"
android:paddingRight="10dp"
android:hint="Nama"
/>
<EditText
android:layout_height="wrap_content"
android:layout_width="match_parent"

6. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
android:id="@+id/prodi"
android:layout_marginTop="10dp"
android:layout_marginLeft="10dp"
android:paddingRight="10dp"
android:hint="Prodi"/>
<Button
android:id="@+id/btnsubmit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android:background="@drawable/button"
android:paddingRight="10dp"
android:onClick="simpan"
android:text="SIMPAN" />
<Button
android:id="@+id/btn_back"
android:background="@drawable/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="KEMBALI" />
</LinearLayout>
</ScrollView>
</LinearLayout>
Sekarang masuk ke kodingan MainActivity.java
package com.example.crud;
import java.util.ArrayList;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.*;
import android.content.Intent;

7. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
public class MainActivity extends Activity {
EditText nim, nama, prodi;
Intent i;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tambah);
nim = (EditText) findViewById(R.id.nim);
nama = (EditText) findViewById(R.id.nama);
prodi = (EditText) findViewById(R.id.prodi);
}
public void simpan (View View) {
String nim1 = nim.getText().toString();
String nama1 = nama.getText().toString();
String prodi1 = prodi.getText().toString();
// TODO Auto-generated method stub
ArrayList<NameValuePair> postParameters = new
ArrayList<NameValuePair>();
postParameters.add(new BasicNameValuePair("nim", nim1));
postParameters.add(new BasicNameValuePair("nama", nama1));
postParameters.add(new BasicNameValuePair("prodi", prodi1));
String response = null;
try {
response =
CustomHttpClient.executeHttpPost("http://10.0.2.2/insert/Simpan.php",
postParameters);
String res = response.toString();
res = res.trim();

8. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
res = res.replaceAll("s+","");
if (res.equals("0"))
{
Toast.makeText(getApplicationContext(),"Data Sudah
Tersimpan" , Toast.LENGTH_LONG).show();
}
else {
Toast.makeText(getApplicationContext(),"Data Sudah
Tersimpan Ke Server" , Toast.LENGTH_LONG).show();
Intent i = new Intent(this, TampilActivity.class);
startActivity(i);
nim.setText("");
nama.setText("");
prodi.setText("");
}
} catch (Exception e) {
nim.setText(e.toString());
}
}
}
Sekarang kita masuk ke AndroidManifest.xml
Tambahkan
<uses-permission android:name="android.permission.INTERNET" >
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.crud"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk

9. Mata kuliah : Mobile Technologies (3sks)
Dosen Pengampu : Tri Sugihartono, M.Kom
Materi : Simpan Data ke Database
Website : www.atmaluhur.ac.id
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >