rg1/server/Sog/Core/Http/HttpUtils.cs

using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Http;


namespace Sog
{
    public class HttpUtils
    {
        private static readonly long MaxResponseContentBufferSize = 256000;
        private static readonly string DefaultUserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36";
        

        //注意是非异步调用，不要搞错了，上层自己处理多线程等等解决性能问题
        public static string HttpGet(string url, out bool exception, Dictionary<string, string> httpHeaders)
        {
            using (HttpClient httpClient = new HttpClient())
            {
                return HttpGet(httpClient, url, out exception, httpHeaders);
            }
        }

        //注意是非异步调用，不要搞错了，上层自己处理多线程等等解决性能问题
        public static string HttpGet(HttpClient httpClient, string url, out bool exception, 
            Dictionary<string, string> httpHeaders)
        {
            exception = false;

            //.net core下面这个Limit其实是没有用的，实现和.netframwork不同
            ServicePointManager.DefaultConnectionLimit = 500;
            try
            {
                TraceLog.Debug("HttpUtils.HttpGet url:{0}", url);

                httpClient.MaxResponseContentBufferSize = MaxResponseContentBufferSize;
                httpClient.DefaultRequestHeaders.Add("user-agent", DefaultUserAgent);
                if (httpHeaders != null)
                {
                    foreach (var item in httpHeaders)
                    {
                        httpClient.DefaultRequestHeaders.Add(item.Key, item.Value);
                    }
                }

                httpClient.Timeout = TimeSpan.FromSeconds(6);

                HttpResponseMessage response = httpClient.GetAsync(new Uri(url)).Result;
                string result = response.Content.ReadAsStringAsync().Result;

                TraceLog.Debug("HttpUtils.HttpGet res code {0}, msg {1}",
                    response.StatusCode, string.IsNullOrEmpty(result) ? "null" : result);

                if (response.IsSuccessStatusCode)
                {
                    return result;
                }
                
                return null;
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);

                exception = true;
            }

            return null;
        }

        //注意是非异步调用，不要搞错了，上层自己处理多线程等等解决性能问题
        public static string HttpPost(string url, List<KeyValuePair<String, String>> paramList, out bool exception)
        {
            exception = false;

            HttpClient httpClient = null;
            //.net core下面这个Limit其实是没有用的，实现和.netframwork不同
            ServicePointManager.DefaultConnectionLimit = 500;
            try
            {
                TraceLog.Debug("HttpUtils.HttpPost url:{0}", url);

                httpClient = new HttpClient();
                httpClient.MaxResponseContentBufferSize = MaxResponseContentBufferSize;
                httpClient.DefaultRequestHeaders.Add("user-agent", DefaultUserAgent);

                httpClient.Timeout = TimeSpan.FromSeconds(10);

                HttpContent content = null;
                if (paramList != null)
                {
                    // FormUrlEncodedContent 生成内容格式 Content-Type: application/x-www-form-urlencoded 
                    content = new FormUrlEncodedContent(paramList);
                }

                HttpResponseMessage response = httpClient.PostAsync(new Uri(url), content).Result;
                string result = response.Content.ReadAsStringAsync().Result;

                TraceLog.Debug("HttpUtils.HttpPost res code {0}, msg {1}",
                    response.StatusCode, string.IsNullOrEmpty(result) ? "null" : result);

                if (response.IsSuccessStatusCode)
                {
                    return result;
                }
                else
                {
                    return null;
                }
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);

                exception = true;
            }
            finally
            {
                if (httpClient != null)
                {
                    httpClient.Dispose();
                }
            }

            return null;
        }


        public static string HttpPost(string url, HttpContent content, out bool exception)
        {
            exception = false;

            HttpClient httpClient = null;
            //.net core下面这个Limit其实是没有用的，实现和.netframwork不同
            ServicePointManager.DefaultConnectionLimit = 500;
            try
            {
                TraceLog.Debug("HttpUtils.HttpPost url:{0}", url);

                httpClient = new HttpClient();
                httpClient.MaxResponseContentBufferSize = MaxResponseContentBufferSize;
                httpClient.DefaultRequestHeaders.Add("user-agent", DefaultUserAgent);
                httpClient.Timeout = TimeSpan.FromSeconds(10);

                HttpResponseMessage response = httpClient.PostAsync(new Uri(url), content).Result;
                string result = response.Content.ReadAsStringAsync().Result;

                TraceLog.Debug("HttpUtils.HttpPost res code {0}, msg {1}",
                    response.StatusCode, string.IsNullOrEmpty(result) ? "null" : result);

                if (response.IsSuccessStatusCode)
                {
                    return result;
                }

                return null;
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);

                exception = true;
            }
            finally
            {
                if (httpClient != null)
                {
                    httpClient.Dispose();
                }
            }

            return null;
        }


        public static string HttpPost(string url, HttpContent content, List<KeyValuePair<String, String>> headerList, out bool exception)
        {
            exception = false;

            HttpClient httpClient = null;
            //.net core下面这个Limit其实是没有用的，实现和.netframwork不同
            ServicePointManager.DefaultConnectionLimit = 500;
            try
            {
                TraceLog.Debug("HttpUtils.HttpPost url:{0}", url);

                httpClient = new HttpClient();
                httpClient.MaxResponseContentBufferSize = MaxResponseContentBufferSize;
                httpClient.Timeout = TimeSpan.FromSeconds(2);

                if (headerList != null)
                {
                    foreach (var item in headerList)
                    {
                        httpClient.DefaultRequestHeaders.Add(item.Key, item.Value);
                    }
                }

                HttpResponseMessage response = httpClient.PostAsync(new Uri(url), content).Result;
                string result = response.Content.ReadAsStringAsync().Result;

                TraceLog.Debug("HttpUtils.HttpPost res code {0}, msg {1}",
                    response.StatusCode, string.IsNullOrEmpty(result) ? "null" : result);

                if (response.IsSuccessStatusCode)
                {
                    return result;
                }
                
                return null;
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);

                exception = true;
            }
            finally
            {
                if (httpClient != null)
                {
                    httpClient.Dispose();
                }
            }

            return null;

        }


        public static string HttpPost(string url, HttpContent content,
            Dictionary<string, string> httpHeaders, int timeout, out int statusCode)
        {
            statusCode = -1;

            HttpClient httpClient = null;
            //.net core下面这个Limit其实是没有用的，实现和.netframwork不同
            ServicePointManager.DefaultConnectionLimit = 500;
            try
            {
                TraceLog.Debug("HttpUtils.HttpPost url:{0}", url);

                httpClient = new HttpClient();
                httpClient.MaxResponseContentBufferSize = MaxResponseContentBufferSize;
                httpClient.Timeout = TimeSpan.FromSeconds(timeout);

                if (httpHeaders != null)
                {
                    foreach (var item in httpHeaders)
                    {
                        httpClient.DefaultRequestHeaders.Add(item.Key, item.Value);
                    }
                }

                HttpResponseMessage response = httpClient.PostAsync(new Uri(url), content).Result;
                string result = response.Content.ReadAsStringAsync().Result;

                TraceLog.Debug("HttpUtils.HttpPost res code {0}, msg {1}",
                    response.StatusCode, string.IsNullOrEmpty(result) ? "null" : result);

                statusCode = (int)response.StatusCode;

                return response.IsSuccessStatusCode ? result : null;
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);
            }
            finally
            {
                if (httpClient != null)
                {
                    httpClient.Dispose();
                }
            }

            return null;
        }

    }
}