从Android向WCF发送imageview

我将imageview转换为位图，然后转换为Base64字符串，然后通过post将其发送到服务器。 我正在WCF中接收流，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();
    }

---

我做错了什么？

在写入文件之前，您应该尝试在接收端执行Base64解码。

为了帮助所有人，我将发布我的答案，我更改了Android代码如下：

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();
}

private void upload（）{
BitmapDrawable drawable=（BitmapDrawable）perfilimg.getDrawable（）；
位图bitmapOrg=drawable.getBitmap（）；
ByteArrayOutputStream bao=新建ByteArrayOutputStream（）；
压缩（Bitmap.CompressFormat.JPEG，100，bao）；
字节[]ba=bao.toByteArray（）；
新建uploadToServer（）.execute（）；
}
公共类uploadToServer扩展异步任务{
private ProgressDialog pd=新建ProgressDialog（Perfil.this）；
受保护的void onPreExecute（）{
super.onPreExecute（）；
设置消息（“上传图像…”）；
pd.show（）；
}
@凌驾
受保护字符串doInBackground（无效…参数）{
试一试{
HttpClient HttpClient=新的DefaultHttpClient（）；
HttpPost HttpPost=新的HttpPost（“http://dotstudioservices.com/elswitchService/Service1.svc/perfilimagen");
httppost.setEntity（新的ByteArrayEntity（ba））；
HttpResponse response=httpclient.execute（httppost）；
HttpEntity=response.getEntity（）；
字符串结果=EntityUtils.toString（实体）；
Log.e（“Pruebas”，结果）；
}捕获（例外e）{
Log.v（“Log_标记”，“http连接错误”+e.toString（））；
}
返回“成功”；
}
受保护的void onPostExecute（字符串结果）{
super.onPostExecute（结果）；
pd.hide（）；
pd.解散（）；
}

我不知道如何从流中执行此操作，然后再从包含base64内容的文件中执行此操作。您不是在进行文件上载。您所做的是发送一个普通的键值文本对。因此，我甚至想知道是否将某些内容保存到文件中。请使用写字板查看保存的内容。我有这样的内容：base64=%2F9j%2F4AAqskzjrgabaqaaaqbaad%2f2wbdaaamcagmmcagmdawmeawebqgfbqeqeqobwyidaomdaskcwsndhiqdq4rdgslebyqe…好的。确实是我已经告诉过你的key=值对。从中删除base64=就得到了base64编码的图像。现在你可以对它进行解码了。但是像%2F这样的字符串中有不允许的字符。这看起来像是一个url编码的字符。你是url编码的吗在发布之前对字符串进行编码？或者您可以在解码base64之前对该字符串进行url解码。在代码中，我有：httppost.setEntity（新的UrlEncodedFormEntity（nameValuePairs））；我想我应该发送base64编码而不发送nameValuePairs…我想我需要发送一个列表…我不能只发送一个字符串

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();
}