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Android Delete Data in Server via Web Service

Android Delete Data in Server via Web Service ตัวอย่างการเขียน Android เพื่อลบ Delete ข้อมูลบน Database ที่อยู่บน Server ผ่านช่องทางของ Web Service และใช้ PHP กับ MySQL ทำงานร่วมกับ Web Service หลักการก็คือ ออกแบบรายการ Web Service ไว้ 2 ตัวคือ

- getMember.php แสดงรายการข้อมูลทั้งหมดไปยัง Client ของ Android
- deleteMemberData.php ลบรายการข้อมูลที่ได้ส่งมาจาก Android


Android Delete data in Server via Web Service


Android and Web Service


AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />

ในการเขียน Android เพื่อติดต่อกับ Internet จะต้องกำหนด Permission ในส่วนนี้ด้วยทุกครั้ง

Web Service

member
CREATE TABLE `member` (
  `MemberID` int(2) NOT NULL auto_increment,
  `Username` varchar(50) NOT NULL,
  `Password` varchar(50) NOT NULL,
  `Name` varchar(50) NOT NULL,
  `Tel` varchar(50) NOT NULL,
  `Email` varchar(150) NOT NULL,
  PRIMARY KEY  (`MemberID`),
  UNIQUE KEY `Username` (`Username`),
  UNIQUE KEY `Email` (`Email`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=4 ;

-- 
-- Dumping data for table `member`
-- 

INSERT INTO `member` VALUES (1, 'weerachai', '[email protected]', 'Weerachai Nukitram', '0819876107', '[email protected]');
INSERT INTO `member` VALUES (2, 'adisorn', '[email protected]', 'Adisorn Bunsong', '021978032', '[email protected]');
INSERT INTO `member` VALUES (3, 'surachai', '[email protected]', 'Surachai Sirisart', '0876543210', '[email protected]');
INSERT INTO `member` VALUES (4, 'surapong', '[email protected]', 'Surapong Siriphun', '0812345678', '[email protected]');


Android Delete data in Server via Web Service


getMember.php
<?
ob_start();
		require_once("lib/nusoap.php");
		 
		//Create a new soap server
		$server = new soap_server();
		 
		//Define our namespace
		$namespace = "https://www.thaicreate.com/android/getMember.php";
		$server->wsdl->schemaTargetNamespace = $namespace;
		 
		//Configure our WSDL
		$server->configureWSDL("resultMember");
		 
		// Register our method and argument parameters
        $varname = array(
                   'strName' => "xsd:string"
        );
		$server->register('resultMember',$varname, array('return' => 'xsd:string'));
		 
		function resultMember($strName)
		{
				$objConnect = mysql_connect("localhost","root","root");
				$objDB = mysql_select_db("mydatabase");

				$strSQL = "SELECT * FROM member WHERE 1 AND Name LIKE '%".$strName."%' ";
				$objQuery = mysql_query($strSQL);
				$intNumField = mysql_num_fields($objQuery);
				$resultArray = array();
				while($obResult = mysql_fetch_array($objQuery))
				{
					$arrCol = array();
					for($i=0;$i<$intNumField;$i++)
					{
						$arrCol[mysql_field_name($objQuery,$i)] = $obResult[$i];
					}
					array_push($resultArray,$arrCol);
				}

				mysql_close($objConnect);

				header('Content-type: application/json');
				return json_encode($resultArray);
		}
		 
		// Get our posted data if the service is being consumed
		// otherwise leave this data blank.
		$POST_DATA = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : '';
		 
		// pass our posted data (or nothing) to the soap service
		$server->service($POST_DATA);
		exit(); 
?>


deleteMemberData.php
<?
ob_start();
		require_once("lib/nusoap.php");
		 
		//Create a new soap server
		$server = new soap_server();
		 
		//Define our namespace
		$namespace = "https://www.thaicreate.com/android/deleteMemberData.php";
		$server->wsdl->schemaTargetNamespace = $namespace;
		 
		//Configure our WSDL
		$server->configureWSDL("deleteMember");
		 
		// Register our method and argument parameters
        $varname = array(
                   'strMemberID' => "xsd:string"
        );
		$server->register('deleteMember',$varname, array('return' => 'xsd:string'));
		 
		function deleteMember($strMemberID)
		{

				$objConnect = mysql_connect("localhost","root","root");
				$objDB = mysql_select_db("mydatabase");

				$strSQL = "DELETE FROM member WHERE 1 AND MemberID = '".$strMemberID."'   ";

				$objQuery = mysql_query($strSQL);
				if(!$objQuery)
				{
					$arr["StatusID"] = "0";
					$arr["Error"] = "Cannot delete data!";
				}
				else
				{
					$arr["StatusID"] = "1";
					$arr["Error"] = "";
				}
				
				/**
					$arr['StatusID'] // (0=Failed , 1=Complete)
					$arr['Error' // Error Message
				*/
				
				mysql_close($objConnect);
				
				header('Content-type: application/json');
				return json_encode($arr);
		}
		 
		// Get our posted data if the service is being consumed
		// otherwise leave this data blank.
		$POST_DATA = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : '';
		 
		// pass our posted data (or nothing) to the soap service
		$server->service($POST_DATA);
		exit(); 
?>



Android Project

โครงสร้างของไฟล์ประกอบด้วย 3 ไฟล์คือ MainActivity.java, activity_main.xml และ activity_column.xml

Android Delete data in Server via Web Service

activity_main.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/tableLayout1"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
 
   	<TableRow
      android:id="@+id/tableRow1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content" >
     
     <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Delete Member : "
        android:layout_span="1"
        android:textAppearance="?android:attr/textAppearanceMedium" />

     <EditText
         android:id="@+id/txtKeySearch"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:ems="4" >
     </EditText>

     <Button
         android:id="@+id/btnSearch"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Search" />
  	        
 	</TableRow>

	<View
		android:layout_height="1dip"
		android:background="#CCCCCC" />
 
  <LinearLayout
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.1">   
     
     <ListView
         android:id="@+id/listView1"
         android:layout_width="match_parent"
         android:layout_height="wrap_content">
     </ListView>
  	        
 	</LinearLayout>

	<View
		android:layout_height="1dip"
		android:background="#CCCCCC" />
   		  
   	<LinearLayout
      android:id="@+id/LinearLayout1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="5dip" >

   		<TextView
   		    android:id="@+id/textView2"
   		    android:layout_width="wrap_content"
   		    android:layout_height="wrap_content"
   		    android:text="By.. ThaiCreate.Com" />

	</LinearLayout>
	
</TableLayout>


activity_column.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/linearLayout1"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <ImageButton
        android:id="@+id/btnDelete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@android:drawable/ic_notification_clear_all" />

	<TextView
	android:id="@+id/ColMemberID" 
		android:layout_width="0dp"
		android:layout_height="wrap_content" 
		android:layout_weight="0.2"
		android:text="CustomerID"
		android:textAppearance="?android:attr/textAppearanceSmall" />

	<TextView
		android:id="@+id/ColName" 
		android:layout_width="0dp"
		android:layout_height="wrap_content" 
		android:layout_weight="1.0"
		android:text="Name"
		android:textAppearance="?android:attr/textAppearanceSmall" />

	<TextView
	    android:id="@+id/ColTel"
	    android:layout_width="0dp"
	    android:layout_height="wrap_content"
	    android:layout_weight="1"
	    android:text="Tel"
	    android:textAppearance="?android:attr/textAppearanceSmall" />

</LinearLayout>


MainActivity.java
package com.myapp;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import org.xmlpull.v1.XmlPullParserException;

import android.os.Bundle;
import android.os.StrictMode;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Menu;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
	
	// for List Data
	private final String NAMESPACE1 = "https://www.thaicreate.com/android/getMember.php";
    private final String URL1 = "https://www.thaicreate.com/android/getMember.php?wsdl"; // WSDL URL
    private final String SOAP_ACTION1 = "https://www.thaicreate.com/android/getCustomer.php/resultMember";
    private final String METHOD_NAME1 = "resultMember"; // Method on web service
    
	// for Delete Data
	private final String NAMESPACE2 = "https://www.thaicreate.com/android/deleteMemberData.php";
    private final String URL2 = "https://www.thaicreate.com/android/deleteMemberData.php?wsdl"; // WSDL URL
    private final String SOAP_ACTION2 = "https://www.thaicreate.com/android/deleteMemberData.php/deleteMember";
    private final String METHOD_NAME2 = "deleteMember"; // Method on web service
	
	ArrayList<HashMap<String, String>> MyArrList;

    @SuppressLint("NewApi")
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Permission StrictMode
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }
        
        ShowData();
        
        
        // btnSearch
        final Button btnSearch = (Button) findViewById(R.id.btnSearch);
        //btnSearch.setBackgroundColor(Color.TRANSPARENT);
        // Perform action on click
        btnSearch.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
            	ShowData();
            }
        });
        
    }
    
    public void ShowData()
    {
    	 // listView1
        final ListView lisView1 = (ListView)findViewById(R.id.listView1); 	
        
        // keySearch
        EditText strKeySearch = (EditText)findViewById(R.id.txtKeySearch); 
        
        // Disbled Keyboard auto focus
        InputMethodManager imm = (InputMethodManager)getSystemService(
      	      Context.INPUT_METHOD_SERVICE);
      	imm.hideSoftInputFromWindow(strKeySearch.getWindowToken(), 0);
        
		
		SoapObject request = new SoapObject(NAMESPACE1, METHOD_NAME1);
		request.addProperty("strName", strKeySearch.getText().toString());

		SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
				SoapEnvelope.VER11);

		envelope.setOutputSoapObject(request);

		HttpTransportSE androidHttpTransport = new HttpTransportSE(URL1);
		

		try {

			androidHttpTransport.call(SOAP_ACTION1, envelope);
			SoapObject result = (SoapObject) envelope.bodyIn;

			if (result != null) {
					
			/**
			 * [{"MemberID":"1","Username":"weerachai","Password":"[email protected]","Name":"Weerachai Nukitram","Tel":"0819876107","Email":"[email protected]"},
			 * {"MemberID":"2","Username":"adisorn","Password":"[email protected]","Name":"Adisorn Bunsong","Tel":"021978032","Email":"[email protected]"},
			 * {"MemberID":"3","Username":"surachai","Password":"[email protected]","Name":"Surachai Sirisart","Tel":"0876543210","Email":"[email protected]"}]
			 */
				
				MyArrList = new ArrayList<HashMap<String, String>>();
				HashMap<String, String> map;
				
				JSONArray data = new JSONArray(result.getProperty(0).toString());
				
				for(int i = 0; i < data.length(); i++){
	                JSONObject c = data.getJSONObject(i);
	                
	    			map = new HashMap<String, String>();
	    			map.put("MemberID", c.getString("MemberID"));
	    			map.put("Username", c.getString("Username"));
	    			map.put("Password", c.getString("Password"));
	    			map.put("Name", c.getString("Name"));
	    			map.put("Email", c.getString("Email"));
	    			map.put("Tel", c.getString("Tel"));
	    			MyArrList.add(map);
				}
				
				lisView1.setAdapter(new ImageAdapter(this));
		        

			} else {
				Toast.makeText(getApplicationContext(),
						"Web Service not Response!", Toast.LENGTH_LONG)
						.show();
			}

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (XmlPullParserException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
    }
    
    
    public class ImageAdapter extends BaseAdapter 
    {
        private Context context;

        public ImageAdapter(Context c) 
        {
        	// TODO Auto-generated method stub
            context = c;
        }
 
        public int getCount() {
        	// TODO Auto-generated method stub
            return MyArrList.size();
        }
 
        public Object getItem(int position) {
        	// TODO Auto-generated method stub
            return position;
        }
 
        public long getItemId(int position) {
        	// TODO Auto-generated method stub
            return position;
        }
		public View getView(final int position, View convertView, ViewGroup parent) {
			// TODO Auto-generated method stub
			
			LayoutInflater inflater = (LayoutInflater) context
					.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
			
				if (convertView == null) {
					convertView = inflater.inflate(R.layout.activity_column, null); 
				}
	 	
				// imgCmdDelete
				ImageButton cmdDelete = (ImageButton) convertView.findViewById(R.id.btnDelete);
				cmdDelete.setBackgroundColor(Color.TRANSPARENT);
				
				final AlertDialog.Builder adb1 = new AlertDialog.Builder(MainActivity.this);
				final AlertDialog.Builder adb2 = new AlertDialog.Builder(MainActivity.this);
				
				cmdDelete.setOnClickListener(new View.OnClickListener() {
					public void onClick(View v) {
					  adb1.setTitle("Delete?");
					  adb1.setMessage("Are you sure delete [" + MyArrList.get(position).get("Name") +"]");
					  adb1.setNegativeButton("Cancel", null);
					  adb1.setPositiveButton("Ok", new AlertDialog.OnClickListener() {
					  public void onClick(DialogInterface dialog, int which) {
						  
						  
						    // Request to Delete data.
							SoapObject request = new SoapObject(NAMESPACE2, METHOD_NAME2);
							request.addProperty("strMemberID", MyArrList.get(position).get("MemberID"));

							SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
									SoapEnvelope.VER11);

							envelope.setOutputSoapObject(request);

							HttpTransportSE androidHttpTransport = new HttpTransportSE(URL2);
							
							try {
								androidHttpTransport.call(SOAP_ACTION2, envelope);
							} catch (IOException e) {
								// TODO Auto-generated catch block
								e.printStackTrace();
							} catch (XmlPullParserException e) {
								// TODO Auto-generated catch block
								e.printStackTrace();
							}
							
							SoapObject result = (SoapObject) envelope.bodyIn;
							
					        
			                /** Get result delete data from Server (Return the JSON Code)
			                 * StatusID = ? [0=Failed,1=Complete]
			                 * Error	= ?	[On case error return custom error message]
			                 * 
			                 * Eg Login Failed = {"StatusID":"0","Error":"Cannot delete data!"}
			                 * Eg Login Complete = {"StatusID":"1","Error":""}
			                 */
							
					        String strStatusID = "0";
					        String strError = "Unknow Status";
					        
					        try {
								JSONObject c = new JSONObject(result.getProperty(0).toString());
				            	strStatusID = c.getString("StatusID");
				            	strError = c.getString("Error");
							} catch (JSONException e) {
								// TODO Auto-generated catch block
								e.printStackTrace();
							}
					        
							// Prepare Delete
							if(strStatusID.equals("0"))
							{
								// Dialog
								adb2.setTitle("Error! ");
								adb2.setIcon(android.R.drawable.btn_star_big_on); 
								adb2.setPositiveButton("Close", null);
								adb2.setMessage(strError);
								adb2.show();
							}
							else
							{
								Toast.makeText(MainActivity.this, "Delete data successfully.", Toast.LENGTH_SHORT).show();
								ShowData(); // reload data again
							}
	
					  }});
					  adb1.show();
					}
				});
				
				// ColMemberID
				TextView txtMemberID = (TextView) convertView.findViewById(R.id.ColMemberID);
				txtMemberID.setPadding(10, 0, 0, 0);
				txtMemberID.setText(MyArrList.get(position).get("MemberID") +".");
				
				// R.id.ColName
				TextView txtName = (TextView) convertView.findViewById(R.id.ColName);
				txtName.setPadding(5, 0, 0, 0);
				txtName.setText(MyArrList.get(position).get("Name"));
				
				// R.id.ColTel
				TextView txtTel = (TextView) convertView.findViewById(R.id.ColTel);
				txtTel.setPadding(5, 0, 0, 0);
				txtTel.setText(MyArrList.get(position).get("Tel"));
				
	 
				return convertView;
				
		}

    } 
    
	
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
    
}


Screenshot

Android Delete data in Server via Web Service

แสดงรายการจาก Web Service โดยแสดงผลบน ListView

Android Delete data in Server via Web Service

คลิกเลือกลบรายการที่ต้องการ

Android Delete data in Server via Web Service

เมื่อรายการถูกลบเรียบร้อยแล้ว ข้อมูลก็จะหายไปดังภาพประกอบ

Android Delete data in Server via Web Service

เมื่อตรวจสอบข้อมูลในฝั่งของ Web Service ข้อมูลที่ลบก็จะหายไปจาก Database






   
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ช่วยกันสนับสนุนรักษาเว็บไซต์ความรู้แห่งนี้ไว้ด้วยการสนับสนุน Source Code 2.0 ของทีมงานไทยครีเอท


ลองใช้ค้นหาข้อมูล


   


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  By : ThaiCreate.Com Team (บทความเป็นลิขสิทธิ์ของเว็บไทยครีเอทห้ามนำเผยแพร่ ณ เว็บไซต์อื่น ๆ)
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  Create/Update Date : 2012-08-11 16:26:38 / 2012-08-13 15:59:24
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