asp.net怎么提取一个外部网站返回的 xml 结果

[stevenhzhang]

我向某一个网站发出一串参数，网站返回我一串xml的结果，我该怎么提取这串结果里的某一个项？

譬如，我在url写： http://www.aaaaa.com/address.dll?zipcode=200335

在IE显示
<?xml version="1.0" ?>
<AddressValidateResponse>
<Address ID="0">
<City>上海</City>
<State>上海</State>
<Zip5>200335</Zip5>
</Address>
</AddressValidateResponse>

我该用什么方法在程序里提取City里的“上海”？

[stevenhzhang]

[Quote=引用 2 楼 chen_lichao 的回复:]
C# code
string url = "http://www.aaaaa.com/address.dll?zipcode=200335";
string result = string.Empty;

HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.Accept = "*/*";
request.Headers.Add("Accept-Language: zh-cn");
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)";
WebResponse respons…
[/Quote]

看上去应该working，不过我用VB写的，请问using怎么转换VB里相应语法？

using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
result = sr.ReadToEnd();
}

[stevenhzhang]

[Quote=引用 1 楼 yeness 的回复:]
gridview就可以呀
[/Quote]

GridView，是在页面上直接看到结果，我是要在类里面取值。当然也能掉用GV，不过我觉得没有必要这么消耗

[xuan.ye]

gridview就可以呀

[caofan520]

        string url = "http://www.aaaaa.com/address.dll?zipcode=200335";
        string result = string.Empty;

        HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
        request.Accept = "*/*";
        request.Headers.Add("Accept-Language: zh-cn");
        request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)";
        WebResponse response = request.GetResponse();
        using (StreamReader sr = new StreamReader(response.GetResponseStream()))
        {
            result = sr.ReadToEnd();
        }

        XmlDocument xml = new XmlDocument();
        xml.LoadXml(result);

        XmlNode node = xml.SelectSingleNode("/City");

        string city = node.InnerXml;

[stevenhzhang]

        Dim url As String = "http://www.aaaaa.com/address.dll?zipcode=200335"
        Dim result As String

        Dim myRequest As HttpWebRequest = HttpWebRequest.Create(url)
        myRequest.Accept = "*.*"
        myRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"
        Dim myResponse As WebResponse = myRequest.GetResponse

        Dim sr As StreamReader = New StreamReader(myResponse.GetResponseStream())
        result = sr.ReadToEnd()

虽然我不知道using在vb.net怎么用，我去掉了，也working。

[lgq594661005]

原来如此，打哈酱油...