c#获取网页源代码的5种方式

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c#获取网页源代码的5种方式

全栈工程师开发手册 （作者：栾鹏） c#教程全解

c#获取网页源代码的5种方式，发送请求获取响应数据流，按照不同的编码转换为响应字符串

测试代码

static void Main() { string back = getwebcode1("blog.csdn/luanpeng825485697?viewmode=contents", "UTF-8"); System.Console.WriteLine(back); }

第1种获取方式

public static string getwebcode1(string url, string encoder) { WebClient myWebClient = new WebClient(); byte[] myDataBuffer = myWebClient.DownloadData(url); string SourceCode = Encoding.GetEncoding(encoder).GetString(myDataBuffer); return SourceCode; }

第2种获取方式

public static string getwebcode2(string url, string encoder) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); //request.Method = "GET "; Stream receiveStream = response.GetResponseStream(); StreamReader readStream = new StreamReader(receiveStream, Encoding.GetEncoding(encoder)); string SourceCode = readStream.ReadToEnd(); response.Close(); readStream.Close(); return SourceCode; }

第3种获取方式

public static string getwebcode3(string url, string encoder) { WebClient wc = new WebClient(); wc.Credentials = CredentialCache.DefaultCredentials; Byte[] pageData = wc.DownloadData(url); string SourceCode = Encoding.GetEncoding(encoder).GetString(pageData); wc.Dispose(); return SourceCode; }

第4种获取方式

public static string getwebcode4(string url, string encoder) { WebClient wc = new WebClient(); wc.Credentials = CredentialCache.DefaultCredentials; Stream resStream = wc.OpenRead(url); StreamReader sr = new StreamReader(resStream, Encoding.GetEncoding(encoder)); string SourceCode = sr.ReadToEnd(); resStream.Close(); wc.Dispose(); return SourceCode; }

第5种获取方式

public static string getwebcode5(string url, string encoder) { WebRequest request = WebRequest.Create(url); WebResponse response = request.GetResponse(); Stream resStream = response.GetResponseStream(); StreamReader sr = new StreamReader(resStream, Encoding.GetEncoding(encoder)); string SourceCode = sr.ReadToEnd(); resStream.Close(); sr.Close(); return SourceCode; }

本文标签： 源代码方式网页