Click here to download this program
I Installed WAMP server on my local machine for excuting PHP programs.
I have programmed in windows 7.
If You need WAMP server, Click here to download.
Before run this program, start wampserver
programs --> wampserver --> start wampserver
see right side below of taskbar WAMPSERVER -server offline icon present.
This is the wampserver icon
Left click icon --> start all services
package name: selva.select
project name: Dbselect
version : 1.5 ( support 1.5 and above versions)
main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/button1"
android:layout_below="@+id/e1"
android:layout_width="276dp"
android:layout_height="wrap_content"
android:text="Button" />
<ScrollView
android:layout_below="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:focusableInTouchMode="true"
android:focusable="true" >
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:focusableInTouchMode="true"
android:focusable="true">
<TableLayout
android:id="@+id/table"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:focusableInTouchMode="true"
android:focusable="true">
</TableLayout>
</HorizontalScrollView>
</ScrollView>
</RelativeLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="selva.select"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="3" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name=".DbselectActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="selva.select"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="3" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name=".DbselectActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
DbselectActivity.java
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.TableRow.LayoutParams;
public class DbselectActivity extends Activity
{
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new View.OnClickListener()
{
public void onClick(View view)
{
String result = null;
InputStream is = null;
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/selectall.php");
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.e("log_tag", "connection success ");
// Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show();
}
catch(Exception e)
{
Log.e("log_tag", "Error in http connection "+e.toString());
Toast.makeText(getApplicationContext(), "Connection fail", Toast.LENGTH_SHORT).show();
}
//convert response to string
try
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
// Toast.makeText(getApplicationContext(), "Input Reading pass", Toast.LENGTH_SHORT).show();
}
is.close();
result=sb.toString();
}
catch(Exception e)
{
Log.e("log_tag", "Error converting result "+e.toString());
Toast.makeText(getApplicationContext(), " Input reading fail", Toast.LENGTH_SHORT).show();
}
//parse json data
try
{
JSONArray jArray = new JSONArray(result);
String re=jArray.getString(jArray.length()-1);
TableLayout tv=(TableLayout) findViewById(R.id.table);
tv.removeAllViewsInLayout();
int flag=1;
for(int i=-1;i<jArray.length()-1;i++)
{
TableRow tr=new TableRow(DbselectActivity.this);
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
if(flag==1)
{
TextView b6=new TextView(DbselectActivity.this);
b6.setText("ID");
b6.setTextColor(Color.BLUE);
b6.setTextSize(15);
tr.addView(b6);
TextView b19=new TextView(DbselectActivity.this);
b19.setPadding(10, 0, 0, 0);
b19.setTextSize(15);
b19.setText("Name");
b19.setTextColor(Color.BLUE);
tr.addView(b19);
TextView b29=new TextView(DbselectActivity.this);
b29.setPadding(10, 0, 0, 0);
b29.setText("no");
b29.setTextColor(Color.BLUE);
b29.setTextSize(15);
tr.addView(b29);
tv.addView(tr);
final View vline = new View(DbselectActivity.this);
vline.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 2));
vline.setBackgroundColor(Color.BLUE);
tv.addView(vline);
flag=0;
}
else
{
JSONObject json_data = jArray.getJSONObject(i);
Log.i("log_tag","id: "+json_data.getInt("f1")+
", Username: "+json_data.getString("f2")+
", No: "+json_data.getInt("f3"));
TextView b=new TextView(DbselectActivity.this);
String stime=String.valueOf(json_data.getInt("f1"));
b.setText(stime);
b.setTextColor(Color.RED);
b.setTextSize(15);
tr.addView(b);
TextView b1=new TextView(DbselectActivity.this);
b1.setPadding(10, 0, 0, 0);
b1.setTextSize(15);
String stime1=json_data.getString("f2");
b1.setText(stime1);
b1.setTextColor(Color.WHITE);
tr.addView(b1);
TextView b2=new TextView(DbselectActivity.this);
b2.setPadding(10, 0, 0, 0);
String stime2=String.valueOf(json_data.getInt("f3"));
b2.setText(stime2);
b2.setTextColor(Color.RED);
b2.setTextSize(15);
tr.addView(b2);
tv.addView(tr);
final View vline1 = new View(DbselectActivity.this);
vline1.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 1));
vline1.setBackgroundColor(Color.WHITE);
tv.addView(vline1);
}
}
}
catch(JSONException e)
{
Log.e("log_tag", "Error parsing data "+e.toString());
Toast.makeText(getApplicationContext(), "JsonArray fail", Toast.LENGTH_SHORT).show();
}
}
});
}
}
database name: ex1
Table name: t1
Fields Name: f1(bigint) ,f2(text) ,f3(bigint)
selectall.php
<?php
$con = mysql_connect("localhost","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("ex1", $con);
$i=mysql_query("select * from t1",$con);
$num_rows = mysql_num_rows($i);
$check='';
while($row = mysql_fetch_array($i))
{
$r[]=$row;
$check=$row['f1'] }
if($check==NULL)
{
$r[$num_rows]="Record is not available";
print(json_encode($r));
}
else
{
$r[$num_rows]="success";
print(json_encode($r));
}
mysql_close($con);
?>
selectall.php
<?php
$con = mysql_connect("localhost","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("ex1", $con);
$i=mysql_query("select * from t1",$con);
$num_rows = mysql_num_rows($i);
$check='';
while($row = mysql_fetch_array($i))
{
$r[]=$row;
$check=$row['f1'] }
if($check==NULL)
{
$r[$num_rows]="Record is not available";
print(json_encode($r));
}
else
{
$r[$num_rows]="success";
print(json_encode($r));
}
mysql_close($con);
?>
thank you for the tutorial, but i keep getting the unfortunately error , can you please help me with it ?
ReplyDeletemost probably your missing networ permission. :)
Delete@Selva Great tutorial Thanks
ReplyDeleteI run your code and I'm getting "JSONArray fail" exception.
can you please tell me how to resolve it.
Thanks
thank you for the tutorial, but i keep getting the unfortunately error , can you please help me with it ?
ReplyDeletehow to multiple person select using check box using android app and store the data mysql
ReplyDeleteError parsing data org.json.JSONException: Value <!DOCTYPE of type java.lang.String cannot be converted to JSONArray
ReplyDeleteplz plz help me guys...........
Guys don't forget ";" at line 22 in selectall.php file.
DeleteThis comment has been removed by the author.
Deletejust simply show the result of your json,. system out to show the error result.. cannot convert it bcuz something wrong with your php script.. :)
DeleteThank you master for the codes it works fine on me. But i have a problem i can't display the last records or new added records from my mysql database. I think i had a problem with the loop right?
ReplyDeleteThis comment has been removed by the author.
DeleteIs it possible to filtering it
ReplyDeleteThis comment has been removed by the author.
DeleteHow can i set a custom font?
ReplyDeleteThanks for ur code.
ReplyDeleteIf i want to give some input in textview then the related info should be viewed in table from mysql means what i have to do. plz help me.
Great tutorial !!!!! It helped me a lot..Thanku..
ReplyDeleteThanks, Great Work.....!
ReplyDeletenice. Please help me for advanced . Next I click on 2 id then after show the more information for 2 id. pls help me. my email id is jailupatel007@gmail.com
ReplyDeleteSend code my emailid or comment
dont know
Deletehi sir. what if i wanted to fetch an image from mysql database? Please help me :)
ReplyDeleteyou cant fetch
DeleteI am able retrieve only last row from sql server express database can you plzzzzz help me out
ReplyDeleteAble to retrieve only last row from the table ...reply me soon
DeleteThis comment has been removed by the author.
ReplyDeletei got a error = java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
ReplyDeletein this line : JSONArray jArray = new JSONArray(result);
plzz anybody help me
same here...
DeleteG same error. Give solution
DeleteHello All,
ReplyDeleteI am getting the below errorwhile trying to cnnect:
Error converting result java.lang.NullPointerException: lock == null
Please help me
thank s in advance.
I am new to android
DeleteI am getting Null response from server
Idon't know the reason .
Please help him what is the possible mistake done by me.
I am new to android
ReplyDeleteI am getting Null response from server
Idon't know the reason .
Please help him what is the possible mistake done by me.
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ReplyDeleteno network Security config android Use platform deflut
ReplyDeleteno network Security config android Use platform deflut
ReplyDeleteResult screen displayed this message :(
ReplyDeleteParse error: syntax error, unexpected '}' in C:\xampp\htdocs\demons\selectiondb.php on line 21
E/log_tag: Error parsing data org.json.JSONException: Value <!DOCTYPE of type java.lang.String cannot be converted to JSONArray.. what could be the error?
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everytime I run it,the app stops.What can be the possible reasons?
ReplyDeleteHi dears! I want to fetch data by clicking on recyclerview item. I want to display the user's data by clicking on specific name in the recyclerview.
ReplyDeletei cant connect with mysql db,help me guys..........
ReplyDelete