Upload File To Server - Android Example

STUDY 2013.08.10 10:05

Simulator Screenshots

Upload image main screenUploading file on serverfile uploaded on server

In this example uploading an image from sdcard to web server.

Steps :

      1.  place an image on sdcard.
      2.  place sdcard image path and image name in UploadToServer.java. ( see below )
      3.  create a php script (UploadToServer.php) at server. ( see below )
      4.  place php script path in UploadToServer.java. ( see below )
      5.  create folder name uploads on server where you have placed php script.
      6.  give permission 777 (read/write/execute) to uploads folder.

 

Project Structure :

 

Upload_file_project_sketch

 

 

Upload Image Sdcard View :

 

Upload_image_sdcard_path

 

File : AndroidManifest.xml

 

<?xml version="1.0" encoding="utf-8"?>
  <manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.androidexample.uploadtoserver"
      android:versionCode="1"
      android:versionName="1.0" >
   
      <uses-sdk
          android:minSdkVersion="8"/>
       
      <uses-permission android:name="android.permission.INTERNET"/>
   
      <application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" >
          <activity
              android:name="com.androidexample.uploadtoserver.UploadToServer"
              android:label="@string/app_name" >
              <intent-filter>
                  <action android:name="android.intent.action.MAIN" />
   
                  <category android:name="android.intent.category.LAUNCHER" />
              </intent-filter>
          </activity>
      </application>
   
  </manifest>

 

File : res/layout/activity_upload_to_server.xml

 

<?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     >
     <Button
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:text="Click To Upload File"
         android:id="@+id/uploadButton"
     />
       
     <TextView
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:text=""
         android:id="@+id/messageText"
         android:textColor="#000000"
         android:textStyle="bold"
     />
  </LinearLayout>

 

File : src/UploadToServer.java

 

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
  
public class UploadToServer extends Activity {
     
    TextView messageText;
    Button uploadButton;
    int serverResponseCode = 0;
    ProgressDialog dialog = null;
        
    String upLoadServerUri = null;
     
    /**********  File Path *************/
    final String uploadFilePath = "/mnt/sdcard/";
    final String uploadFileName = "service_lifecycle.png";
     
    @Override
    public void onCreate(Bundle savedInstanceState) {
         
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_upload_to_server);
          
        uploadButton = (Button)findViewById(R.id.uploadButton);
        messageText  = (TextView)findViewById(R.id.messageText);
         
        messageText.setText("Uploading file path :- '/mnt/sdcard/"+uploadFileName+"'");
         
        /************* Php script path ****************/
        upLoadServerUri = "http://www.androidexample.com/media/UploadToServer.php";
         
        uploadButton.setOnClickListener(new OnClickListener() {           
            @Override
            public void onClick(View v) {
                 
                dialog = ProgressDialog.show(UploadToServer.this, "", "Uploading file...", true);
                 
                new Thread(new Runnable() {
                        public void run() {
                             runOnUiThread(new Runnable() {
                                    public void run() {
                                        messageText.setText("uploading started.....");
                                    }
                                });                     
                           
                             uploadFile(uploadFilePath + "" + uploadFileName);
                                                      
                        }
                      }).start();       
                }
            });
    }
      
    public int uploadFile(String sourceFileUri) {
           
           
          String fileName = sourceFileUri;
  
          HttpURLConnection conn = null;
          DataOutputStream dos = null; 
          String lineEnd = "\r\n";
          String twoHyphens = "--";
          String boundary = "*****";
          int bytesRead, bytesAvailable, bufferSize;
          byte[] buffer;
          int maxBufferSize = 1 * 1024 * 1024;
          File sourceFile = new File(sourceFileUri);
           
          if (!sourceFile.isFile()) {
               
               dialog.dismiss();
                
               Log.e("uploadFile", "Source File not exist :"
                                   +uploadFilePath + "" + uploadFileName);
                
               runOnUiThread(new Runnable() {
                   public void run() {
                       messageText.setText("Source File not exist :"
                               +uploadFilePath + "" + uploadFileName);
                   }
               });
                
               return 0;
            
          }
          else
          {
               try {
                    
                     // open a URL connection to the Servlet
                   FileInputStream fileInputStream = new FileInputStream(sourceFile);
                   URL url = new URL(upLoadServerUri);
                    
                   // Open a HTTP  connection to  the URL
                   conn = (HttpURLConnection) url.openConnection();
                   conn.setDoInput(true); // Allow Inputs
                   conn.setDoOutput(true); // Allow Outputs
                   conn.setUseCaches(false); // Don't use a Cached Copy
                   conn.setRequestMethod("POST");
                   conn.setRequestProperty("Connection", "Keep-Alive");
                   conn.setRequestProperty("ENCTYPE", "multipart/form-data");
                   conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
                   conn.setRequestProperty("uploaded_file", fileName);
                    
                   dos = new DataOutputStream(conn.getOutputStream());
          
                   dos.writeBytes(twoHyphens + boundary + lineEnd);
                   dos.writeBytes("Content-Disposition: form-data; name="uploaded_file";filename=""
                                             + fileName + """ + lineEnd);
                    
                   dos.writeBytes(lineEnd);
          
                   // create a buffer of  maximum size
                   bytesAvailable = fileInputStream.available();
          
                   bufferSize = Math.min(bytesAvailable, maxBufferSize);
                   buffer = new byte[bufferSize];
          
                   // read file and write it into form...
                   bytesRead = fileInputStream.read(buffer, 0, bufferSize); 
                      
                   while (bytesRead > 0) {
                        
                     dos.write(buffer, 0, bufferSize);
                     bytesAvailable = fileInputStream.available();
                     bufferSize = Math.min(bytesAvailable, maxBufferSize);
                     bytesRead = fileInputStream.read(buffer, 0, bufferSize);  
                      
                    }
          
                   // send multipart form data necesssary after file data...
                   dos.writeBytes(lineEnd);
                   dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
          
                   // Responses from the server (code and message)
                   serverResponseCode = conn.getResponseCode();
                   String serverResponseMessage = conn.getResponseMessage();
                     
                   Log.i("uploadFile", "HTTP Response is : "
                           + serverResponseMessage + ": " + serverResponseCode);
                    
                   if(serverResponseCode == 200){
                        
                       runOnUiThread(new Runnable() {
                            public void run() {
                                 
                                String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
                                              +" http://www.androidexample.com/media/uploads/"
                                              +uploadFileName;
                                 
                                messageText.setText(msg);
                                Toast.makeText(UploadToServer.this, "File Upload Complete.",
                                             Toast.LENGTH_SHORT).show();
                            }
                        });               
                   }   
                    
                   //close the streams //
                   fileInputStream.close();
                   dos.flush();
                   dos.close();
                     
              } catch (MalformedURLException ex) {
                   
                  dialog.dismiss(); 
                  ex.printStackTrace();
                   
                  runOnUiThread(new Runnable() {
                      public void run() {
                          messageText.setText("MalformedURLException Exception : check script url.");
                          Toast.makeText(UploadToServer.this, "MalformedURLException",
                                                              Toast.LENGTH_SHORT).show();
                      }
                  });
                   
                  Log.e("Upload file to server", "error: " + ex.getMessage(), ex); 
              } catch (Exception e) {
                   
                  dialog.dismiss(); 
                  e.printStackTrace();
                   
                  runOnUiThread(new Runnable() {
                      public void run() {
                          messageText.setText("Got Exception : see logcat ");
                          Toast.makeText(UploadToServer.this, "Got Exception : see logcat ",
                                  Toast.LENGTH_SHORT).show();
                      }
                  });
                  Log.e("Upload file to server Exception", "Exception : "
                                                   + e.getMessage(), e); 
              }
              dialog.dismiss();      
              return serverResponseCode;
               
           } // End else block
         }
}

 

Php script at server :
 
 File : UploadToServer.php

 

<?php
  
    $file_path = "uploads/";
     
    $file_path = $file_path . basename( $_FILES['uploaded_file']['name']);
    if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $file_path)) {
        echo "success";
    } else{
        echo "fail";
    }
 ?>

 

Show uploaded image at server :

 

Showing_uploaded_file_at_server

 





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Comment

[Android] 안드로이드 개발 환경 구축

STUDY 2013.08.05 22:29



안드로이드의 기본 Language 는 JAVA이다. 하여 가장 먼저 JAVA를 설치하여야 한다.

설치 순 : JDK 설치 -> 이클립스(개발 툴) 설치 -> 이클립스 내부 ADT 설치 -> SDK 매니저 설치 -> SDK 매니저로 플랫폼 추가



1. JAVA 설치

 - JAVA 기본 설치를 위해 ORACLE 홈페이지에서 Java Platform (JDK) 를 설치하야 한다.

  링크 : http://www.oracle.com/technetwork/java/javase/downloads/index.html 



다음 JDK 를 선택 한 후 "Accept License Agreement"를 선택하고 다음과 같이 운영체제의 버전에 맞게 설치를 한다.



2. 이클립스  설치

  - 이클립스 설치는 설치가 아니라 해당 파일을 받은 후 압축만 풀면 JDK 가 깔린 상태에서 싱행되기 때문에 별도의 설치는 필요가 없다.  보통 [[ Eclipse IDE for Java EE Developers, 246 MB ]] 를 설치하면 된다.

  링크 : http://www.eclipse.org/downloads/


3. ADT 설치  

  - 이클립스 실행 후, Help - Install New Software 를 선택, Install 창에서 Add버튼을 클릭 후 다음과 같이 빈칸을 채운다.

  Name : Android-ADT

  Location: https://dl-ssl.google.com/android/eclipse

 ※ 만약 되지 않을경우 https:// 에서 http:// 로 바꿔보도록 한다.



그 후 Developer Tools 와 NDK Plugins 를 선택 한 다음 Next 신공을 누르고 'I accept the terms of the license agreements' 를 선택하여 설치를 Finish한다.



다음과 같이 설치가 완료되었으면 이클립스를 다시 실행한다는 경고창이 뜨게 된다. 그 후 다시 시작하면 ADT의 설치는 끝난다.




4. SDK 설치 및 SDK 매니저로 플랫폼 추가

  - 수동적인 방법으로 해당 링크에 들어가서 USE AN EXISTING IDE 에 들어가서 해당 SDK Tools 를 다운받는다.

  링크 : http://developer.android.com/sdk/index.html


Download the SDK Tools for Windows 다운로드


다운로드한 위치에 SDK Manage를 실행하거나 Window - Android SDK Manager 를 눌러 버전별로 플랫폼을 다운받을 수 있다.

설치 진행 중 에러메시지가 나오면 yes를 눌러주면 된다.




5. 에뮬레이터 생성하기

  - 이클립스 실행 후 Window - Android Virtual Device Manager를 클릭해 New로 에뮬레이터를 만들 수 있다.




저작자표시비영리변경금지

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  1. BlogIcon 강 양 2015.01.26 13:13 신고 Addr Modify Reply

    와아 좋은 정보 감사드려요^^

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