C#编程语言之读取网页内容（微软官网方法）

原创于 2020-06-16 16:55:56 发布 · 428 阅读

CC 4.0 BY-SA版权

本文介绍了一种使用C#进行网络请求的经典方法，通过微软官网推荐的代码示例，展示了如何从指定URL下载资源并将其转换为字节数组。此方法适用于需要在网络环境中获取数据的应用场景。

微软官网方法，绝对经典：

        public static byte[] GetURLContents(string url)
        {
            // The downloaded resource ends up in the variable named content.
            var content = new MemoryStream();
            // Initialize an HttpWebRequest for the current URL.
            var webReq = (HttpWebRequest)WebRequest.Create(url);
            // Send the request to the Internet resource and wait for
            // the response.
            // Note: you can't use HttpWebRequest.GetResponse in a Windows Store app.
            using (WebResponse response = webReq.GetResponse())
            {
                // Get the data stream that is associated with the specified URL.
                using (Stream responseStream = response.GetResponseStream())
                {
                    // Read the bytes in responseStream and copy them to content.
                    responseStream.CopyTo(content);
                }
            }
            // Return the result as a byte array.
            return content.ToArray();
        }