从 HttpWebRespose Stream 检索数据然后添加文本的正确方法

发布于 2024-09-11 19:10:08 字数 652 浏览 5 评论 0原文

我正在尝试检索网页，在页面顶部添加一些文本，然后我将发送该字符串。这是我正在尝试做的示例框架。这是正确的方法还是我在某个地方做了很大的禁忌？

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.example.com");
var responce = (HttpWebResponse)request.GetResponse();
var responseStream = responce.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
string responseString = reader.ReadToEnd();

StringBuilder sb = new StringBuilder(responseString);

var index = sb.ToString().IndexOf("<body>", StringComparison.InvariantCultureIgnoreCase)+"<body>".Length;
sb.Insert(index, "A lot of text will go here.");
Console.WriteLine(sb.ToString());

原文

I am trying to retrieve a web page, add some text at the top of the page then I will be sending off the string. Here is a example framework of what I am trying to do. Is this the correct method or am I doing a big no-no somewhere?

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.example.com");
var responce = (HttpWebResponse)request.GetResponse();
var responseStream = responce.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
string responseString = reader.ReadToEnd();

StringBuilder sb = new StringBuilder(responseString);

var index = sb.ToString().IndexOf("<body>", StringComparison.InvariantCultureIgnoreCase)+"<body>".Length;
sb.Insert(index, "A lot of text will go here.");
Console.WriteLine(sb.ToString());

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岁月苍老的讽刺 2024-09-18 19:10:09

在某些时候，您可能想要调用 responce.Close() 和 reader.Close()

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人生百味 2024-09-18 19:10:08

您需要使用 HttpWebRequest/Response 有什么特殊原因吗？您也可以使用这样的 WebClient 类来实现相同的结果：

WebClient web_client = new WebClient();
byte[] result = web_client.DownloadData("http://blah...");
string html = System.Text.Encoding.Default.GetString(result);
html.IndexOf("<body>") ...

也可以少一点这样的代码。

Is there any particular reason you need to use HttpWebRequest/Response? You could alternatively use the WebClient class like this to achieve the same result:

WebClient web_client = new WebClient();
byte[] result = web_client.DownloadData("http://blah...");
string html = System.Text.Encoding.Default.GetString(result);
html.IndexOf("<body>") ...

Little bit less code like that as well.

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