Android：上傳圖片

Question

我目前正試圖通過Android將圖片上傳到PHP服務器。下面是代碼：

// Android上段代碼

     bm = BitmapFactory.decodeFile(imagePath); //imagePath is the path of the image in my SD card  
         ByteArrayOutputStream bao = new ByteArrayOutputStream(); 
         bm.compress(Bitmap.CompressFormat.JPEG, 90, bao);//compressing image 
         byte[] ba = bao.toByteArray(); 
         String ba1 = Base64.encodeBytes(ba); 
         ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 
         nameValuePairs.add(new BasicNameValuePair("image",ba1)); 

         try{ 
          HttpClient client = new DefaultHttpClient(); 
          HttpPost post = new HttpPost("http://domain.com/upload_image.php"); 
          post.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
          HttpResponse res = client.execute(post); 
          HttpEntity entity = res.getEntity(); 
          is = entity.getContent(); 


         }catch(Exception e){ 
          Log.e("log_tag","Error in http connection "+e.toString()); 
         } 

// PHP服務器（upload_image.php）的代碼段

<?php 
$base=$_REQUEST['image']; 

// base64 encoded utf-8 string 
$binary=base64_decode($base); 

// binary, utf-8 bytes 
header('Content-Type: bitmap; charset=utf-8'); 

$file = fopen('test.jpg', 'wb'); 

fwrite($file, $binary); 

fclose($file); 
?> 

我無法上傳映像到服務器上，其中test.jpg從不在服務器上顯示。我從我的智能手機運行程序，而不是仿真器。

Answer 1

// binary, utf-8 bytes 
header('Content-Type: bitmap; charset=utf-8'); 

沒有任何影響，您不會將位圖輸出到瀏覽器/ httpclient。

$file = fopen('test.jpg', 'wb'); 

嘗試指定測試的完整路徑，如/tmp/test.jpg。

Answer 2

String executeMultipartPost(Bitmap bm,String image_name) { 
    String resp = null; 
    try { 
    ByteArrayOutputStream bos = new ByteArrayOutputStream(); 

    bm.compress(CompressFormat.JPEG, 75, bos); 

    byte[] data = bos.toByteArray(); 

    HttpClient httpClient = new DefaultHttpClient(); 

    HttpPost postRequest = new HttpPost("domain.com/upload_image.php"); 

    ByteArrayBody bab = new ByteArrayBody(data, image_name); 

    MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); 
    reqEntity.addPart("uploaded", bab); 
    reqEntity.addPart("photoCaption", new StringBody("sfsdfsdf")); 
    postRequest.setEntity(reqEntity); 
    HttpResponse response = httpClient.execute(postRequest); 
      BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8")); 
    String sResponse; 
    StringBuilder s = new StringBuilder(); 
    while ((sResponse = reader.readLine()) != null) { 
    s = s.append(sResponse); 
    } 
    resp=s.toString(); 
    } catch (Exception e) { 
    // handle exception here 
    Log.e(e.getClass().getName(), e.getMessage()); 
    } 
    return resp; 


    } 
<?php 

$target = "upload/"; 

$target = $target . basename($_FILES['uploaded']['name']) ; 
$ok=1; 
if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target)) 
{ 
echo "yes"; 
} 
else { 
echo "no"; 
} 
?>