Question

我将imageview转换为位图，然后转换为Base64字符串，之后我将其通过post发送到服务器。我在WCF中收到了流，但保存的文件已损坏，图像文件无法查看。

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

在写入文件之前，您应该尝试在接收端进行Base64解码。

Answer 2

为了帮助大家，我将发布我的答案，我更改了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();
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();
}

从Android发送imageview到WCF

2 个答案: