问

我在便携式类库中使用HttpClient获得403

姚姚姚YTLLL 发布于 2023-01-30 15:09

string

我有一个PCL,WP和WinStore项目.在PCL项目中,我有一个使用此方法的类:

    private async Task GetIpAddress()
    {
        const string url = "http://www.ip-adress.com/";
        const string buscar = "Your IP address is:";

        var client = new HttpClient();
        var data = await client.GetStringAsync(url);
        if (data.IndexOf(buscar, StringComparison.Ordinal) <= -1) return;
        var IpAddress = data.Remove(0, data.IndexOf(buscar, StringComparison.Ordinal) + buscar.Length + 1);
        IpAddress = IpAddress.Remove(IpAddress.IndexOf("", StringComparison.Ordinal));
        return IpAddress;
    }

当我在Windows Phone项目上调用该方法时,可以完美地工作,但不能在Windows应用商店项目中运行.相反,我收到此错误消息:

消息403

1 个回答

看来你需要凭据并指向api,这就是为什么它的"Forbiden"

尝试像浏览器一样调用它:从另一个问题" HttpClient请求像浏览器 "

void Main()
{

    GetIP("http://www.ip-adress.com/");

}

async void GetIP(string url){
    try{
    "Looking Up".Dump("OK");
    var x = await  GetResponse(url);
    x.Dump();
    }
    catch(Exception e){
        e.Dump("Problems:");
    }
}

private static async Task<string> GetResponse(string url)
{
    var httpClient = new HttpClient();

    httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Accept", "text/html,application/xhtml+xml,application/xml");
    httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Accept-Encoding", "gzip, deflate");
    httpClient.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:19.0) Gecko/20100101 Firefox/19.0");
    httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Accept-Charset", "ISO-8859-1");

    var response = await httpClient.GetAsync(new Uri(url));

    response.EnsureSuccessStatusCode();
    using (var responseStream = await response.Content.ReadAsStreamAsync())
    //using (var decompressedStream = new System.IO.Compression.GZipStream(responseStream, CompressionMode.Decompress))
    using (var streamReader = new StreamReader(responseStream))
    {
        return streamReader.ReadToEnd();
    }
}

//注意:我注释掉压缩,

2023-01-30 15:12 回答

苦咖啡青柠檬

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