摘要：
后端文件流转发代码public static void doGetFile(HttpServletResponse httpResponse,String url) { CloseableHttpClient httpClient = null; CloseableHttpResponse resp 阅读全文
摘要：
public static String doPost(String url,String fileName, File file) { CloseableHttpClient httpClient = null; CloseableHttpResponse response = null; Str 阅读全文