https://androidexample.com/How_To_Make_HTTP_POST_Request_To_Server_-_Android_Example/index.php?view=article_discription&aid=64


 this example we will learn how to make POST Method request to server in android.

 

NOTE:

Always call server with the use of thread and handlers, if not using request with thread then server request will lock activity to complete request  , if user will interact with activity before server request complete  then activity  will give ANR (FORCE CLOSE ERROR) problem.

Please see this example Thread With Handlers to make request to server with Thread and Handlers.
 

HttpPostExample.java File

 

public class HttpPostExample extends Activity {
   
      TextView content;
      EditText fname, email, login, pass;
      String Name, Email, Login, Pass;
       
      /** Called when the activity is first created. */
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_http_post_example);
           
          content    =   (TextView)findViewById( R.id.content );
          fname      =   (EditText)findViewById(R.id.name);
          email      =   (EditText)findViewById(R.id.email);
          login      =    (EditText)findViewById(R.id.loginname);
          pass       =   (EditText)findViewById(R.id.password);
           
           
          Button saveme=(Button)findViewById(R.id.save);
 
          saveme.setOnClickListener(new Button.OnClickListener(){
 
              public void onClick(View v)
              {
                  try{
                       
                           // CALL GetText method to make post method call
                          GetText();
                   }
                  catch(Exception ex)
                   {
                      content.setText(" url exeption! " );
                   }
              }
          }); 
      }
       
  // Create GetText Metod
public  void  GetText()  throws  UnsupportedEncodingException
      {
          // Get user defined values
          Name = fname.getText().toString();
          Email   = email.getText().toString();
          Login   = login.getText().toString();
          Pass   = pass.getText().toString();
           
           // Create data variable for sent values to server 
           
            String data = URLEncoder.encode("name", "UTF-8")
                         + "=" + URLEncoder.encode(Name, "UTF-8");
 
            data += "&" + URLEncoder.encode("email", "UTF-8") + "="
                        + URLEncoder.encode(Email, "UTF-8");
 
            data += "&" + URLEncoder.encode("user", "UTF-8")
                        + "=" + URLEncoder.encode(Login, "UTF-8");
 
            data += "&" + URLEncoder.encode("pass", "UTF-8")
                        + "=" + URLEncoder.encode(Pass, "UTF-8");
            
            String text = "";
            BufferedReader reader=null;
 
            // Send data
          try
          {
            
              // Defined URL  where to send data
              URL url = new URL("/media/webservice/httppost.php");
               
           // Send POST data request
 
            URLConnection conn = url.openConnection();
            conn.setDoOutput(true);
            OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
            wr.write( data );
            wr.flush();
        
            // Get the server response
             
          reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
          StringBuilder sb = new StringBuilder();
          String line = null;
          
          // Read Server Response
          while((line = reader.readLine()) != null)
              {
                     // Append server response in string
                     sb.append(line + "\n");
              }
              
              
              text = sb.toString();
          }
          catch(Exception ex)
          {
               
          }
          finally
          {
              try
              {
   
                  reader.close();
              }
 
              catch(Exception ex) {}
          }
                
          // Show response on activity
          content.setText( text  );
          
      }
   
  }

 

Define permission in AndroidManifest.xml File

 

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

 

Server file httppost.php

This file will get POST method request and send response.

 

<?php
 
       $name   = urldecode($_POST['name']);
       $user   = urldecode($_POST['user']);
       $email  = urldecode($_POST['email']);
       $pass   = urldecode($_POST['pass']);
        
       print " ==== POST DATA =====
       Name  : $name
       Email : $email
       User  : $user
       Pass  : $pass";
 
 ?>
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