android - 如何在android中的服务器上以base64格式发送多张图片

Question

我正在开发一个应用程序，我必须在其中通过调用 Restful Web 服务以 base64 格式在服务器上发送多个图像。

调用Restful web服务的代码:

try {
            //instantiates httpclient to make request
            DefaultHttpClient httpclient = new DefaultHttpClient();

            //url with the post data
            HttpPost request = new HttpPost(urlPath);

            //convert parameters into JSON object
            JSONObject holder = new JSONObject(jsonObjString);

            //passes the results to a string builder/entity
            StringEntity se = new StringEntity(holder.toString());

            //sets the post request as the resulting string
            request.setEntity(se);
            //sets a request header so the page receving the request
            //will know what to do with it
            request.setHeader("Accept", "application/json");
            request.setHeader("Content-type", "application/json");

            //Handles what is returned from the page 
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            responseString = httpclient.execute(request, responseHandler);
        }catch (Exception e) {
            e.printStackTrace();
        }

另一个问题是，当我使用 JSON 对象作为请求参数调用 Web 服务时，我得到 线程池执行器。 我们如何解决这个问题。有没有完美的方法通过调用Restful Web Service在服务器上上传多个base64图像。

Answer 1

这是您通过多部分上传图像的代码。它将以 base64 格式上传您的图像。

    String url = "xyz";//url here.
    File file = new File("image path on harddrive");//make a file of image.

    MultipartEntity mpEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
    mpEntity.addPart("content", new FileBody(file, "application/octet"));

    HttpPost httppost = new HttpPost( url);
    httppost.setEntity(mpEntity);

     DefaultHttpClient httpclient = new DefaultHttpClient();
     HttpResponse response;
        try {
            response = httpclient.execute(httppost);
        }

        catch(Exception e){
            e.printStackTrace();
        }