/// <summary>
/// 下载 302跳转文件
/// </summary>
/// <param name="parentUrl">父Url</param>
/// <param name="url">302跳转的Url</param>
/// <returns></returns>
public bool DownFile(string parentUrl,string url)
{
using (HttpClient client = new HttpClient())
{
Uri uri = new Uri(parentUrl);
client.DefaultRequestHeaders.Referrer = uri;
var responseMessage = client.GetAsync(url).Result;
if (responseMessage.IsSuccessStatusCode)
{
//var v = responseMessage.Content.Headers.ContentType;//内容类型
using (var fs = File.Create("d:\\1.pdf"))
{
// 获取结果，并转成 stream 保存到本地。
var streamFromService = responseMessage.Content.ReadAsStreamAsync().Result;
streamFromService.CopyTo(fs);
responseMessage.Dispose();
streamFromService.Dispose();
return true;
}
}
}
return false;
}
/// <summary>
/// 下载 文件
/// </summary>
/// <param name="parentUrl">父Url</param>
/// <param name="url">302跟转的Url</param>
/// <returns></returns>
public bool DownFile(string url)
{
using (HttpClient client = new HttpClient())
{
var responseMessage = client.GetAsync(url).Result;
if (responseMessage.IsSuccessStatusCode)
{
//var v = responseMessage.Content.Headers.ContentType;//内容类型
using (var fs = File.Create("d:\\1.pdf"))
{
// 获取结果，并转成 stream 保存到本地。
var streamFromService = responseMessage.Content.ReadAsStreamAsync().Result;
streamFromService.CopyTo(fs);
responseMessage.Dispose();
streamFromService.Dispose();
return true;
}
}
}
return false;
}
public string Get(string urlStr)
{
using (HttpClient client = new HttpClient())
{
var responseMessage = client.GetAsync(urlStr).Result;
if (responseMessage.IsSuccessStatusCode)
{
string data = responseMessage.Content.ReadAsStringAsync().Result;
return data;
}
else
{
return string.Empty;
}
}
}
public string Post(string urlStr,string data)
{
using (HttpClient client = new HttpClient())
{
HttpContent content = new StringContent(data);
content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
string result = client.PostAsync(urlStr, content).Result.Content.ReadAsStringAsync().Result;
return result;
}
}
/// <summary>
/// httpclient中携带cookie
/// </summary>
/// <param name="url"></param>
/// <param name="cookie">cookie字符串</param>
/// <returns></returns>
public string Get(string url, string cookie)
{
HttpClientHandler handler = new HttpClientHandler() { UseCookies = false };
HttpClient client = new HttpClient(handler);
HttpRequestMessage message = new HttpRequestMessage(HttpMethod.Get, url);
message.Headers.Add("Cookie", cookie);
HttpResponseMessage result = client.SendAsync(message).Result;
if (result.IsSuccessStatusCode)
{
return result.Content.ReadAsStringAsync().Result;
}
return "";
}本文来自 www.luofenming.com