求助！httpclient4.4/4.5 ClientProtocolException 异常的问题

求助！httpclient4.4/4.5 在 spring环境下（test unit / tomcat）报org.apache.http.client.ClientProtocolException的异常。。写个main方法单独测试httpclient是正常的。。谁遇到过这个问题？感激

public static boolean getImage(String url, File file) throws NoSuchAlgorithmException, KeyManagementException, IOException {
        CloseableHttpClient httpclient = HttpUtils.createHttpClient(url);
 
        HttpGet httpGet = createHttpGet(url, null);
 
        CloseableHttpResponse response = httpclient.execute(httpGet);
        String contentType = response.getFirstHeader("Content-Type").getValue();
        if (contentType != null && (contentType.toLowerCase().contains("image/") ||
                contentType.toLowerCase().contains("jpg") ||
                contentType.toLowerCase().contains("png") ||
                contentType.toLowerCase().contains("gif"))) {
            byte[] bytes = EntityUtils.toByteArray(response.getEntity());
            FileUtils.writeByteArrayToFile(file, bytes);
            return true;
        } else {
            return false;
        }
    }