@Override public InputStream execute(CloseableHttpClient httpclient, String uri, String queryParam) throws WxErrorException, IOException { if (queryParam != null) { if (uri.indexOf('?') == -1) { uri += '?'; } uri += uri.endsWith("?") ? queryParam : '&' + queryParam; } HttpGet httpGet = new HttpGet(uri); try (CloseableHttpResponse response = httpclient.execute(httpGet)) { Header[] contentTypeHeader = response.getHeaders("Content-Type"); if (contentTypeHeader != null && contentTypeHeader.length > 0) { // 下载媒体文件出错 if (ContentType.TEXT_PLAIN.getMimeType().equals(contentTypeHeader[0].getValue())) { String responseContent = Utf8ResponseHandler.INSTANCE.handleResponse(response); throw new WxErrorException(JSON.parseObject(responseContent, WxError.class)); } } InputStream inputStream = InputStreamResponseHandler.INSTANCE.handleResponse(response); // 视频文件不支持下载 String fileName = getFileName(response); if (StringUtils.isBlank(fileName)) { return null; } return inputStream; } }
private ContentType receiveWithCharsetParameter(ContentType contentType, Charset charset) { if (contentType.getCharset() != null) { return contentType; } final String mimeType = contentType.getMimeType(); if (mimeType.equals(ContentType.TEXT_PLAIN.getMimeType()) || AbstractFutureCallback.ODATA_MIME_TYPE.matcher(mimeType).matches()) { return contentType.withCharset(charset); } return contentType; }