如何从URL中读取csv文件？ [英] how to read a csv file from a url?

问题描述

我试图创建一个网络服务，获取到一个网址，例如 www.domain.co.uk/prices.csv ，然后读取csv文件。这是可能和如何？理想情况下不下载csv文件？

Im trying to create a web service which gets to a URL e.g. www.domain.co.uk/prices.csv and then reads the csv file. Is this possible and how? Ideally without downloading the csv file?

推荐答案

您可以使用：

public string GetCSV(string url)
{
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
    HttpWebResponse resp = (HttpWebResponse)req.GetResponse();

    StreamReader sr = new StreamReader(resp.GetResponseStream());
    string results = sr.ReadToEnd();
    sr.Close();

    return results;
} 

然后拆分：

public static void SplitCSV()
{
    List<string> splitted = new List<string>();
    string fileList = getCSV("http://www.google.com");
    string[] tempStr;

    tempStr = fileList.Split(',');

    foreach (string item in tempStr)
    {
        if (!string.IsNullOrWhiteSpace(item))
        {
            splitted.Add(item);
        }
    }
}

虽然有大量CSV解析器在那里，我会建议反对滚动自己的。 FileHelpers 是一个不错的选择。

Though there are plenty of CSV parsers out there and i would advise against rolling your own. FileHelpers is a good one.

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