如何使用NameValuePair发送字节HTTP？

Question

我想使用此NameValuePair方法从我的Android客户端向Web服务器发送几个值:

public void postData() { 
    // Create a new HttpClient and Post Header 
    HttpClient httpclient = new DefaultHttpClient(); 
    HttpPost httppost = new HttpPost("http:/xxxxxxx"); 

    try { 
        // Add your data 
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1); 
        String amount = paymentAmount.getText().toString(); 
        String email = inputEmail.getText().toString(); 
        nameValuePairs.add(new BasicNameValuePair("donationAmount", amount)); 
        nameValuePairs.add(new BasicNameValuePair("email", email)); 
        nameValuePairs.add(new BasicNameValuePair("paymentMethod", "5")); 
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

        // Execute HTTP Post Request 
        HttpResponse response = httpclient.execute(httppost); 

    } catch (ClientProtocolException e) { 
        // TODO Auto-generated catch block 
    } catch (IOException e) { 
        // TODO Auto-generated catch block 
    } 
}  

不幸的是,NameValuePair只能发送String,我也需要发送byte []值.有人可以帮我解决我的问题吗？

Answer 1

        HttpPost httppost = new HttpPost("http://upload-test.php");
        MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
        HttpClient httpClient = new DefaultHttpClient();
        if(bm!=null){
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            bm.compress(CompressFormat.JPEG, 75, bos);
            byte[] data = bos.toByteArray();
            ByteArrayBody bab = new ByteArrayBody(data, name+".jpg");
            entity.addPart("file", bab);
        }
        try {
            StringBody sname = new StringBody(name);
            entity.addPart("name", sname);


        } catch (UnsupportedEncodingException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

        httppost.setEntity(entity);
        try {
            httpClient.execute(httppost);
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

在这个例子中,我发布了一个Image(jpg)和String,你可以在这里下载多部分的帖子库:http://hc.apache.org/downloads.cgi bm是一个Bitmap.你也可以使用:

Bundle bundle=new Bundle();
bundle.putString("key", "value");
byte[] b = bundle.getByteArray("key");
ByteArrayBody bab = new ByteArrayBody(b,"info");