android：使用multipartentity上传图片

Question

我正在尝试使用multipartentity在php服务器上传图片，我使用httpmime 4.3 jar导入多部分实体，我已将此jar添加到我的应用程序中，但我无法导入此类。

public void postPicture(String path, File file) throws ParseException,
            IOException {
        HttpClient httpclient = new DefaultHttpClient();
        httpclient.getParams().setParameter(
                CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
        HttpPost httppost = new HttpPost(path);
        MultipartEntity mpEntity = new MultipartEntity();
        FileBody cbFile = new FileBody(file, "image/png");
        cbFile.getMediaType();
        mpEntity.addPart("userfile", cbFile);
        httppost.setEntity(mpEntity);
        HttpResponse response = httpclient.execute(httppost);
    }

任何人都可以帮助我。提前谢谢。