297 lines
12 KiB
C#
297 lines
12 KiB
C#
namespace CrasyStudio.Core.Common
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{
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public class HttpRequestHelper
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{/// <summary>
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/// GET
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/// </summary>
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/// <param name="url">发送请求的URL</param>
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/// <param name="param">请求参数，请求参数应该是 name1=value1&name2=value2 的形式。（不用带问号）</param>
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/// <returns>所代表远程资源的响应结果</returns>
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public static async Task<string> Get(string url, string param)
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{
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string result = string.Empty;
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try
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{
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string urlNameString = url + "?" + param;
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using (var httpClient = new HttpClient())
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{
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//request.Method = "GET";
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//request.ContentType = "text/html;charset=UTF-8";
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//request.Accept = "*/*";
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//request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)";
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//HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "text/html;charset=UTF-8");
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httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("*/*"));
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var response = await httpClient.GetAsync(url);//response.GetResponseStream();
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response.EnsureSuccessStatusCode();
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var responseStream = await response.Content.ReadAsStreamAsync();
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var reader = new StreamReader(responseStream, Encoding.UTF8);
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result = reader.ReadToEnd();
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reader.Close();
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responseStream.Close();
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("发送GET请求出现异常：" + ex.Message);
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}
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finally
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{
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}
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return result;
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}
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/// <summary>
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/// GET
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/// </summary>
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/// <param name="url">发送请求的URL</param>
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/// <param name="param">请求参数，请求参数应该是 name1=value1&name2=value2 的形式。</param>
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/// <param name="encoding">设置响应信息的编码格式，如utf-8</param>
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/// <returns>所代表远程资源的响应结果</returns>
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public static async Task<string> Get(string url, string param, string encoding)
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{
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string result = string.Empty;
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try
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{
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string urlNameString = url + "?" + param;
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using (var httpClient = new HttpClient())
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{
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httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "text/html;charset=UTF-8");
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httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("*/*"));
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var response = await httpClient.GetAsync(url);//response.GetResponseStream();
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response.EnsureSuccessStatusCode();
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var responseStream = await response.Content.ReadAsStreamAsync();
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var reader = new StreamReader(responseStream, Encoding.UTF8);
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result = reader.ReadToEnd();
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reader.Close();
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responseStream.Close();
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("发送GET请求出现异常：" + ex.Message);
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}
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finally
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{
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}
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return result;
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}
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/// <summary>
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/// 向指定 URL 发送POST方法的请求
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/// </summary>
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/// <param name="url">发送请求的 URL</param>
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/// <param name="jsonData">请求参数，请求参数应该是Json格式字符串的形式。</param>
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/// <returns>所代表远程资源的响应结果</returns>
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public static async Task<string> Post(string url, string jsonData)
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{
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var content = await Post(url, jsonData, "UTF-8");
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return content;
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}
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/// <summary>
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/// 向指定 URL 发送POST方法的请求
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/// </summary>
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/// <param name="url">发送请求的 URL</param>
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/// <param name="jsonData">请求参数，请求参数应该是Json格式字符串的形式。</param>
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/// <param name="encoding">设置响应信息的编码格式，如utf-8</param>
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/// <returns>所代表远程资源的响应结果</returns>
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public static async Task<string> Post(string url, string jsonData, string encoding)
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{
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string result = string.Empty;
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try
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{
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CookieContainer cookie = new CookieContainer();
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using (var handler = new HttpClientHandler() { CookieContainer = cookie })
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using (var httpClient = new HttpClient(handler))
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{
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httpClient.DefaultRequestHeaders.Add("x-requested-with", "XMLHttpRequest");
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httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("*/*"));
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//httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/x-www-form-urlencoded");
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httpClient.DefaultRequestHeaders.ExpectContinue = false;
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using (var request = new HttpRequestMessage())
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{
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request.Method = HttpMethod.Post;
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request.RequestUri = new Uri(url);
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request.Content = new StringContent(jsonData, Encoding.GetEncoding(encoding));
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request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
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var response = await httpClient.SendAsync(request);
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response.EnsureSuccessStatusCode();
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return await response.Content.ReadAsStringAsync();
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}
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("发送GET请求出现异常：" + ex.Message);
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}
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return result;
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}
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/// <summary>
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/// 上传媒体文件
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/// </summary>
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/// <param name="url">上传媒体文件的微信公众平台接口地址</param>
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/// <param name="file">要上传的媒体文件对象</param>
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/// <returns>返回上传的响应结果，详情参看微信公众平台开发者接口文档</returns>
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public static async Task<string> UploadFile(string url, string file)
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{
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string result = string.Empty;
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try
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{
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byte[] bytes = File.ReadAllBytes(file);
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using (var content = new ByteArrayContent(bytes))
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using (var handler = new HttpClientHandler { Credentials = CredentialCache.DefaultCredentials })
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using (var client = new HttpClient(handler))
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{
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content.Headers.ContentType = new MediaTypeHeaderValue("*/*");
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//Send it
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var response = await client.PostAsync(url, content);
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response.EnsureSuccessStatusCode();
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Stream responseStream = await response.Content.ReadAsStreamAsync();
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StreamReader reader = new StreamReader(responseStream);
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return reader.ReadToEnd();
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}
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}
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catch (Exception ex)
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{
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result = "Error:" + ex.Message;
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Console.WriteLine("发送GET请求出现异常：" + ex.Message);
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}
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finally
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{
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Console.WriteLine("上传MediaId:" + result);
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}
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return result;
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}
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public static async Task<bool> DownloadFile(string url, string param, string outFileName)
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{
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bool result = false;
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FileStream? fs = null;
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try
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{
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//string urlNameString = url + "?" + param;
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//HttpWebRequest request = (HttpWebRequest)WebRequest.Create(urlNameString);
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//request.Method = "GET";
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//request.ContentType = "text/html;charset=UTF-8";
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//request.Accept = "*/*";
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//request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)";
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//HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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//Stream responseStream = response.GetResponseStream();
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//fs = new FileStream(outFileName, FileMode.Create);
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//int bufferSize = 2048;
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//byte[] data = new byte[bufferSize];
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//int length = 0;
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//while ((length = responseStream.Read(data, 0, bufferSize)) > 0)
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//{
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// fs.Write(data, 0, length);
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//}
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//fs.Close();
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//responseStream.Close();
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//response.Close();
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string urlNameString = url + "?" + param;
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using (var httpClient = new HttpClient())
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{
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httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "text/html;charset=UTF-8");
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httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("*/*"));
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var response = await httpClient.GetAsync(url);//response.GetResponseStream();
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response.EnsureSuccessStatusCode();
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var responseStream = await response.Content.ReadAsStreamAsync();
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fs = new FileStream(outFileName, FileMode.Create);
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int bufferSize = 2048;
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byte[] data = new byte[bufferSize];
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int length = 0;
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while ((length = responseStream.Read(data, 0, bufferSize)) > 0)
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{
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fs.Write(data, 0, length);
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}
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fs.Close();
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responseStream.Close();
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}
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result = true;
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}
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catch (Exception ex)
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{
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Console.WriteLine("下载媒体文件时出现异常：" + ex.Message);
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}
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finally
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{
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if (fs != null)
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{
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fs.Close();
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}
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}
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return result;
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}
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///// <summary>
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///// 向指定 URL 发送POST方法的请求
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///// </summary>
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///// <param name="posturl">发送请求的 URL</param>
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///// <param name="postData">请求参数，请求参数应该是Json格式字符串的形式。</param>
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///// <returns>所代表远程资源的响应结果</returns>
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//public static string HttpPost(string posturl, string postData = "")
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//{
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// string content = String.Empty;
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// Encoding encoding = Encoding.UTF8;
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// byte[] data = encoding.GetBytes(postData);
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// try
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// {
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// // 设置参数
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// HttpWebRequest request = WebRequest.Create(posturl) as HttpWebRequest;
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// CookieContainer cookieContainer = new CookieContainer();
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// request.CookieContainer = cookieContainer;
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// request.AllowAutoRedirect = true;
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// request.Method = "POST";
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// request.ContentType = "application/json;charset=utf-8";
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// request.ContentLength = data.Length;
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// using (Stream outstream = request.GetRequestStream())
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// {
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// outstream.Write(data, 0, data.Length);
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// outstream.Close();
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// }
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// //发送请求并获取相应回应数据
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// HttpWebResponse response = request.GetResponse() as HttpWebResponse;
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// //直到request.GetResponse()程序才开始向目标网页发送Post请求
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// using (Stream instream = response.GetResponseStream())
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// {
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// using (StreamReader reader = new StreamReader(instream, encoding))
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// {
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// //返回结果
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// content = reader.ReadToEnd();
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// reader.Close();
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// }
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// instream.Close();
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// }
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// response.Close();
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// return content;
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// }
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// catch (Exception ex)
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// {
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// string err = ex.Message;
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// return string.Empty;
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// }
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//}
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}
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}
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