php - 通过 Android 应用上传图片并使用 $_POST 发送文本

Question

我必须将图像上传到我的服务器，还要发送一些文本。这是我所做的，但它不起作用:

String  UploadImage(Bitmap bm) {
    String resp = null;
    try {  
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        bm.compress(CompressFormat.JPEG, 75, bos);
        byte[] data = bos.toByteArray();

        HttpClient httpClient = new DefaultHttpClient();
        HttpPost postRequest = new HttpPost("myserver.com/add.php");
        String rndName =generateSessionKey(15);

        List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(1);
        nameValuePair.add(new BasicNameValuePair("filename",rndName));
        nameValuePair.add(new BasicNameValuePair("email",email));

        UrlEncodedFormEntity form;
        form = new UrlEncodedFormEntity(nameValuePair);
        form.setContentEncoding(HTTP.UTF_8);
        try {
            postRequest.setEntity((HttpEntity) new UrlEncodedFormEntity(nameValuePair,"UTF-8"));
        } catch (UnsupportedEncodingException e) {
            // writing error to Log
            e.printStackTrace();
        }

        ByteArrayBody bab = new ByteArrayBody(data,rndName+".jpg");

        MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
        reqEntity.addPart("uploaded", bab);
        //reqEntity.addPart("photoCaption", new StringBody("sfsdfsdf"));
        postRequest.setEntity(reqEntity);
        HttpResponse response = httpClient.execute(postRequest);
        BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
        String sResponse;
        StringBuilder s = new StringBuilder();
        while ((sResponse = reader.readLine()) != null) {
            s = s.append(sResponse);
        }
        resp=s.toString();
    } catch (Exception e) {
        // handle exception here
        Log.e(e.getClass().getName(), e.getMessage());
    }
    return resp;
}

服务器没有得到filename和email。

为什么它不起作用？

感谢您的协助!

Answer 1

您不能结合使用 UrlEncoded 和 Multipart。相反，将所有字符串字段添加为它自己的多部分的一部分。

看这里的例子: Apache HttpClient making multipart form post