上传图片到服务器

我google了很多，但它不工作。我发现了很多网站的信息，但我的应用程序崩溃的所有网站。我想打开的图片是：“lastfile.png”。它存储在内部存储器中，所以我用openFileInput（“lastfile.png”）打开它;上传图片到服务器

我在AsyncTask中完成它。

这是到目前为止我的代码：

class PostTask extends AsyncTask<String, String, String>{ 
     @Override 
     protected String doInBackground(String... uri) { 
      if(picture == null) { 
       HttpClient httpclient = new DefaultHttpClient(); 
       HttpResponse response; 
       String responseString = null; 
       try { 
        response = httpclient.execute(new HttpGet(uri[0])); 
        StatusLine statusLine = response.getStatusLine(); 
        if(statusLine.getStatusCode() == HttpStatus.SC_OK){ 
         ByteArrayOutputStream out = new ByteArrayOutputStream(); 
         response.getEntity().writeTo(out); 
         out.close(); 
         responseString = out.toString(); 
        } else{ 
         response.getEntity().getContent().close(); 
         throw new IOException(statusLine.getReasonPhrase()); 
        } 
       } catch (ClientProtocolException e) { 
        Toast.makeText(AddStoryActivity.this, getResources().getString(R.string.error), Toast.LENGTH_LONG).show(); 
        e.printStackTrace(); 
       } catch (IOException e) { 
        Toast.makeText(AddStoryActivity.this, getResources().getString(R.string.error), Toast.LENGTH_LONG).show(); 
        e.printStackTrace(); 
       } 
       return responseString; 
      } else { 
       /* IMAGE UPLOAD */ 
      } 
      return ""; 
     } 

     @Override 
     protected void onPostExecute(String result) { 
      super.onPostExecute(result); 
      progress.cancel(); 
      Toast.makeText(getApplicationContext(), result, Toast.LENGTH_LONG).show();  
     } 


    }

来源

2012-11-14 Bart Wesselink

哪里图像数据上传？这似乎更像是从服务器上卸载某些东西的方式。对于图片上传，您应该创建一个HttpPost请求，并在您调用'httpClient.execute'之前，将要上传的文件附加到它。 –

的方式我这样做是在压缩IMG为字符串类型，然后把它作为名称值对，然后使用PHP解码在服务器端串。

位图bitmapOrg = BitmapFactory.decodeResource（“您的设备上的图像路径”）;

 ByteArrayOutputStream bao = new ByteArrayOutputStream(); 
     bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 90, bao); 
     byte [] ba = bao.toByteArray(); 
     String ba1= Base64.encodeToString(ba, 0); 
     ArrayList<NameValuePair> nameValuePairs = new 
ArrayList<NameValuePair>(); 
      nameValuePairs.add(new BasicNameValuePair("image",ba1)); 

try{ 

       HttpClient httpclient = new DefaultHttpClient(); 
       HttpPost httppost = new HttpPost("http://your_url/sink.php"); 
       httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
       HttpResponse response = httpclient.execute(httppost); 
       HttpEntity entity = response.getEntity(); 
       is = entity.getContent(); 
      }catch(Exception e){ 

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

SINK.PHP

<?php 

$base=$_REQUEST['image']; 
$name=$_REQUEST['name']; 
echo $base; 
// base64 encoded utf-8 string 
$binary=base64_decode($base); 
// binary, utf-8 bytes 
header('Content-Type: bitmap; charset=utf-8'); 


$file = fopen(name, 'wb'); 
fwrite($file, $binary); 
fclose($file); 
echo '<img src='+name+'>';

？>

来源

2012-11-14 17:33:22