C# HttpWebRequest 怎么重复使用?

2010-11-04 08:26:45 973 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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大家好, 我先贴出代码





HttpWebRequest request = null;



private void button1_Click(object sender, EventArgs e)

{

    InitRequest();

}



private void button2_Click(object sender, EventArgs e)

{

    GetResult();

}



private void InitRequest()

{

    request = (HttpWebRequest)WebRequest.Create("http://www.baidu.com");



    request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)";



    request.Accept = "*/*";



    request.AllowAutoRedirect = false;



    request.KeepAlive = true;

}



private void GetResult()

{

    HttpWebResponse response = (HttpWebResponse)this.request.GetResponse();



    StreamReader sr = new StreamReader(response.GetResponseStream());



    string result = sr.ReadToEnd();

    

}

我的目的是,按一次button1,将request初始化一次,再不停的按button2来获取网页数据.

我的操作步骤是,按button1,按button2,能获取到数据,但再次按button2,sr.ReadToEnd()是空的, 难道request初始化一次,就只可以使用一次? 以后再用又必须再初始化?

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