Android Database Login (basic)

strings.xml

<resources>

    <string name="app_name">Database Login</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">DB Login!</string>
    <string name="txtPesan">Silahkan Login terlebih dahulu</string>
	<string name="txtUser">Username</string>
	<string name="txtPass">Password</string>
	<string name="btnLogin">Login</string>
	<string name="btnSignup">Signup</string>
	
</resources>

<string name="app_name">Database Login</string>

<string name="action_settings">Settings</string>

<string name="hello_world">DB Login!</string>

<string name="txtPesan">Silahkan Login terlebih dahulu</string>

<string name="txtUser">Username</string>

<string name="txtPass">Password</string>

<string name="btnLogin">Login</string>

<string name="btnSignup">Signup</string>

</resources>

main.xml

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/txtUser"></TextView>

  	<EditText
        android:id="@+id/userInput"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    </EditText>

  	<TextView
  	    android:id="@+id/textView2"
  	    android:layout_width="wrap_content"
  	    android:layout_height="wrap_content"
  	    android:text="@string/txtPass"></TextView>

  	<EditText
  	    android:id="@+id/passInput"
  	    android:layout_width="match_parent"
  	    android:layout_height="wrap_content">
  	</EditText>

  	<Button
  	    android:id="@+id/button1"
  	    android:layout_width="wrap_content"
  	    android:layout_height="wrap_content"
  	    android:text="@string/btnLogin"></Button>
  	
  	<EditText
  	    android:id="@+id/status"
  	    android:layout_width="match_parent"
  	    android:layout_height="wrap_content"
  	    android:text="@string/txtPesan"></EditText>
  	
</LinearLayout>

<?xml version="1.0" encoding="UTF-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/txtUser"></TextView>

<EditText

android:id="@+id/userInput"

android:layout_width="match_parent"

android:layout_height="wrap_content">

</EditText>

<TextView

android:id="@+id/textView2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/txtPass"></TextView>

<EditText

android:id="@+id/passInput"

android:layout_width="match_parent"

android:layout_height="wrap_content">

</EditText>

<Button

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/btnLogin"></Button>

<EditText

android:id="@+id/status"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="@string/txtPesan"></EditText>

</LinearLayout>

ClientToServer.java

package com.databaselogin;

import java.io.BufferedReader;
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 ClientToServer {

	public static final int HTTP_TIMEOUT = 30 * 1000;
	private static HttpClient client;
	private static HttpClient getHttpClient() {
		if (client == null){
			client = new DefaultHttpClient();
			final HttpParams parameterHttp = client.getParams();
			HttpConnectionParams.setConnectionTimeout(parameterHttp, HTTP_TIMEOUT);
		}
		return client;
	}
	
	public static String eksekusiHttpPost(String url, ArrayList<NameValuePair>postParameter) 
			throws Exception {
		
		BufferedReader in = null;
		try {
			HttpClient klien = getHttpClient();
			HttpPost req = new HttpPost(url);
			UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameter);
			req.setEntity(formEntity);
			HttpResponse jawaban = klien.execute(req);
			in = new BufferedReader(new InputStreamReader(jawaban.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 hasil = sb.toString();
			return hasil;
		}
		finally {
			if (in != null) {
				in.close();
			}
		}
		
	}

	public static String eksekusiHttpGet(String url) throws Exception {
		BufferedReader in = null;
		try {
			HttpClient hc = getHttpClient();
			HttpGet req = new HttpGet();
			req.setURI(new URI(url));
			HttpResponse resp = hc.execute(req);
			in = new BufferedReader(new InputStreamReader(resp.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 hasil = sb.toString();
			return hasil;
		}
		finally {
			if (in != null) {
				in.close();
			}
		}
	}
}

package com.databaselogin;

import java.io.BufferedReader;

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 ClientToServer {

public static final int HTTP_TIMEOUT = 30 * 1000;

private static HttpClient client;

private static HttpClient getHttpClient() {

if (client == null){

client = new DefaultHttpClient();

final HttpParams parameterHttp = client.getParams();

HttpConnectionParams.setConnectionTimeout(parameterHttp, HTTP_TIMEOUT);

}

return client;

}

public static String eksekusiHttpPost(String url, ArrayList<NameValuePair>postParameter)

throws Exception {

BufferedReader in = null;

try {

HttpClient klien = getHttpClient();

HttpPost req = new HttpPost(url);

UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameter);

req.setEntity(formEntity);

HttpResponse jawaban = klien.execute(req);

in = new BufferedReader(new InputStreamReader(jawaban.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 hasil = sb.toString();

return hasil;

}

finally {

if (in != null) {

in.close();

}

public static String eksekusiHttpGet(String url) throws Exception {

BufferedReader in = null;

try {

HttpClient hc = getHttpClient();

HttpGet req = new HttpGet();

req.setURI(new URI(url));

HttpResponse resp = hc.execute(req);

in = new BufferedReader(new InputStreamReader(resp.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 hasil = sb.toString();

return hasil;

}

finally {

if (in != null) {

in.close();

}