发送Asp.net HttpClient获取结果到浏览器

Question

我有一个asp.net mvc控制器方法“索引”，如下所示。 我想使用HttpClient GetAsync方法从wwww.google.com获取响应，然后将此响应作为响应发送到浏览器，因此浏览器显示www.google.com。 但是我不知道如何用从client.GetAsync获得的响应替换响应。 请帮忙！ 我不想使用重定向。

    public async Task<ActionResult> Index()
    {
        HttpClient client = new HttpClient();
        var httpMessage = await client.GetAsync("http://www.google.com");


        return ???;
    }

Answer 1

您可以使用ReadAsStringAsync()方法将http调用的响应作为字符串ReadAsStringAsync() ，并将该字符串作为action方法的响应返回。

public async Task<ActionResult> Index()
{
    HttpClient client = new HttpClient();
    var httpMessage = await client.GetAsync("http://www.google.com");

    var r = await httpMessage.Content.ReadAsStringAsync();

    return Content(r);
}

当您访问Index操作时，上面的代码将返回google.com的内容。

Answer 2

请尝试像浏览器一样查看这篇文章HttpClient Request

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

我在机器上做样品

在这里全力以赴

    public async Task<string> Index()
    {
        HttpClient client = new HttpClient();


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


        var httpMessage = await client.GetAsync("http://www.google.com");

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

从服务器获取Cookie的示例