在Android中使用MultipartEntityBuilder时HttpPost返回错误

Question

我正在尝试查询“ http://www.idmypill.com/api/id/ ” api，我收到的JSON字符串是{"results":[],"success":false,"errors":null}这是我的服务处理程序类：

public String makeServiceCall(String url, int method, 
        String api, byte[] pillImage) 
{
    try {
        // http client
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpEntity httpEntity = null;
        HttpResponse httpResponse = null;


        // Checking http request method type
         if (method == POST) 
        {
            android.os.Debug.waitForDebugger();
            HttpPost httpPost = new HttpPost(url);

            httpPost.setHeader("data = api_key", api); 
            MultipartEntityBuilder builder = MultipartEntityBuilder.create();
            builder.addBinaryBody("files = image", pillImage); 
            entity = builder.build();
            Log.d("Entity", entity.toString()); 

            httpPost.setEntity(entity);
            Log.d("post", httpPost.toString()); 
            httpResponse = httpClient.execute(httpPost);

            Log.d("params", httpResponse.getParams().toString()); 

        } 

        httpEntity = httpResponse.getEntity();
        response = EntityUtils.toString(httpEntity);

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return response;

}

网站提供的python示例为：

# highly suggested to use the requests package
# http://www.python-requests.org/en/latest/
import requests

# read in the image and construct the payload
image = open("example.jpg").read()
data = {"api_key": "KH8hdoai0wrjB0LyeA3EMu5n4icwyOQo"}
files = {"image": open("example.jpg")}

# fire off the request
r = requests.post("http://www.idmypill.com/api/id/",
    data = data,
    files = files)

# contents will be returned as a JSON string
print r.content

我的发布格式某种程度上肯定是错误的，或者他们是否特别想要.jpg图像而不是字节数组？ 我对Python不熟悉，并且已经为这个问题苦苦挣扎了一个多星期，因此，我们将不胜感激。

Answer 1

尝试：

 ...
 MultipartEntityBuilder builder = MultipartEntityBuilder.create();
 builder.addTextBody("api_key", api);
 builder.addPart("image", pillImage); 
 ...

如果addPart不能与字节数组一起使用（我正在工作，无法测试），则获取图像文件的名称并执行此操作绝对可以：

 ...
 pillImage = "/path/to/the/image.jpg";  //This is the image file name
 MultipartEntityBuilder builder = MultipartEntityBuilder.create();
 builder.addTextBody("api_key", api);
 File imageFile = new File(pillImage);  //Open the image
 builder.addPart("image", imageFile); 
 ...

Answer 2

builder.addPart（“ file”，new FileBody（new File（filename）））;

尝试此操作，而不只是在addPart中使用带有文件对象