请求一个页面

jacky194988

于 2010-05-18 15:36:00 发布

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分类专栏： C# 文章标签： string null exception stream url

本文链接：https://blog.youkuaiyun.com/yaleiwang/article/details/5604308

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public static string GetResponseText(string url)
{
    string responseFromServer = null;
    Stream dataStream = null;
    StreamReader reader = null;
    try
    {
        WebRequest request = WebRequest.Create(url);
        request.Credentials = CredentialCache.DefaultCredentials;
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        if (response.StatusDescription == "OK")
        {
            try
            {
                dataStream = response.GetResponseStream();
                reader = new StreamReader(dataStream, Encoding.GetEncoding("GB2312"));
                responseFromServer = reader.ReadToEnd();
            }
            finally
            {
                reader.Close();
                dataStream.Close();
            }
        }
        response.Close();
        return responseFromServer;
    }
    catch (Exception ex)
    {
        return null;
    }
}