将 imageview 从 Android 发送到 WCF

Question

我将图像视图转换为位图，后来转换为 Base64 字符串，之后我通过 post 将其发送到服务器。我在我的 WCF 中接收流，但保存的文件已损坏，无法看到图像文件。

Android代码：

   private void upload() {
    BitmapDrawable drawable = (BitmapDrawable) perfilimg.getDrawable();
    Bitmap bitmapOrg = drawable.getBitmap();

    ByteArrayOutputStream bao = new ByteArrayOutputStream();
    bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 100, bao);
    byte[] ba = bao.toByteArray();
    ba1 = Base64.encodeBytes(ba);
    // Upload image to server
    new uploadToServer().execute();
}
    public class uploadToServer extends AsyncTask<Void, Void, String> {

    private ProgressDialog pd = new ProgressDialog(Perfil.this);
    protected void onPreExecute() {
        super.onPreExecute();
        pd.setMessage("Uploading image...");
        pd.show();
    }

    @Override
    protected String doInBackground(Void... params) {

        ArrayList<NameValuePair> nameValuePairs = new ArrayList<>();
        nameValuePairs.add(new BasicNameValuePair("base64", ba1));
        try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("http://dotstudioservices.com/elswitchService/Service1.svc/perfilimagen");
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            String result = EntityUtils.toString(entity);
            Log.e("Pruebas", result);
        } catch (Exception e) {
            Log.v("log_tag", "Error in http connection " + e.toString());
        }
        return "Success";

    }

    protected void onPostExecute(String result) {
        super.onPostExecute(result);
        pd.hide();
        pd.dismiss();
    }

WCF 代码：

        public Estatus FileUpload(Stream stream)
    {
        byte[] buffer = new byte[50000];
        stream.Read(buffer, 0, 50000);

    string   filePath = "D:\Hosting\9692238\html\promosbc\imagenesElSwitch\profile.jpg";

        FileStream f = new FileStream(filePath, FileMode.OpenOrCreate);

        f.Write(buffer, 0, buffer.Length);
        f.Close();
        stream.Close();
        return new Estatus { estatus = "success" };
    }

我做错了什么？

Answer 1

您应该在写入文件之前尝试在接收端进行 Base64 解码。

Answer 2

为了帮助大家，我将 post 我的答案，我将 Android 代码更改为：

private void upload() {
BitmapDrawable drawable = (BitmapDrawable) perfilimg.getDrawable();
Bitmap bitmapOrg = drawable.getBitmap();

ByteArrayOutputStream bao = new ByteArrayOutputStream();
bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 100, bao);
byte[] ba = bao.toByteArray();
new uploadToServer().execute();
}

public class uploadToServer extends AsyncTask<Void, Void, String> {

private ProgressDialog pd = new ProgressDialog(Perfil.this);
protected void onPreExecute() {
    super.onPreExecute();
    pd.setMessage("Uploading image...");
    pd.show();
}

@Override
protected String doInBackground(Void... params) {

    try {
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://dotstudioservices.com/elswitchService/Service1.svc/perfilimagen");
        httppost.setEntity(new ByteArrayEntity(ba));
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();
        String result = EntityUtils.toString(entity);
        Log.e("Pruebas", result);
    } catch (Exception e) {
        Log.v("log_tag", "Error in http connection " + e.toString());
    }
    return "Success";

}

protected void onPostExecute(String result) {
    super.onPostExecute(result);
    pd.hide();
    pd.dismiss();
}

将 imageview 从 Android 发送到 WCF

Send imageview to WCF from Android

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imageview