.NET HttpHelper

标签：contentType string application HttpHelper headers using NET null

using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Security;
using System.Net;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using Newtonsoft.Json;
using System.Net.Http;

namespace HttpCore
{
public class HttpAction
{
///

/// 发起POST同步请求
///

///
///
/// application/xml、application/json、application/text、application/x-www-form-urlencoded
/// 填充消息头
///
public static string HttpPost(string url, string postData = null, string contentType = "application/json", int timeOut = 30, Dictionary<string, string> headers = null)
{
// 忽略SSL证书验证
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(IgnoreCertificateValidation);
postData = postData ?? "";
using (HttpClient client = new HttpClient())
{
if (headers != null)
{
foreach (var header in headers)
client.DefaultRequestHeaders.Add(header.Key, header.Value);
}
using (HttpContent httpContent = new StringContent(postData, Encoding.UTF8))
{
if (contentType != null){
httpContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue(contentType);
}
HttpResponseMessage response = client.PostAsync(url, httpContent).Result;
return response.Content.ReadAsStringAsync().Result;
}
}
}

    private static bool IgnoreCertificateValidation(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
    {
        // 这里总是返回true以忽略证书验证
        return true;
    }
    /// <summary>
    /// 发起POST异步请求
    /// </summary>
    /// <param name="url"></param>
    /// <param name="postData"></param>
    /// <param name="contentType">application/xml、application/json、application/text、application/x-www-form-urlencoded</param>
    /// <param name="headers">填充消息头</param>
    /// <returns></returns>
    public static async Task<string> HttpPostAsync(string url, string postData = null, string contentType = "application/json", int timeOut = 30, Dictionary<string, string> headers = null)
    {
        // 忽略SSL证书验证
        ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(IgnoreCertificateValidation);
        postData = postData ?? "";
        using (HttpClient client = new HttpClient())
        {
            client.Timeout = new TimeSpan(0, 0, timeOut);
            if (headers != null)
            {
                foreach (var header in headers)
                    client.DefaultRequestHeaders.Add(header.Key, header.Value);
            }
            using (HttpContent httpContent = new StringContent(postData, Encoding.UTF8))
            {
                if (contentType != null)
                    httpContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue(contentType);

                HttpResponseMessage response = await client.PostAsync(url, httpContent);
                return await response.Content.ReadAsStringAsync();
            }
        }
    }

    /// <summary>
    /// 发起GET同步请求
    /// </summary>
    /// <param name="url"></param>
    /// <param name="headers"></param>
    /// <param name="contentType"></param>
    /// <returns></returns>
    public static string HttpGet(string url, string contentType = "application/json", Dictionary<string, string> headers = null)
    {
        // 忽略SSL证书验证
        ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(IgnoreCertificateValidation);
        using (HttpClient client = new HttpClient())
        {
            if (contentType != null)
                client.DefaultRequestHeaders.Add("ContentType", contentType);
            if (headers != null)
            {
                foreach (var header in headers)
                    client.DefaultRequestHeaders.Add(header.Key, header.Value);
            }
            HttpResponseMessage response = client.GetAsync(url).Result;
            return response.Content.ReadAsStringAsync().Result;
        }
    }

    /// <summary>
    /// 发起GET异步请求
    /// </summary>
    /// <param name="url"></param>
    /// <param name="headers"></param>
    /// <param name="contentType"></param>
    /// <returns></returns>
    public static async Task<string> HttpGetAsync(string url, string contentType = "application/json", Dictionary<string, string> headers = null)
    {
        // 忽略SSL证书验证
        ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(IgnoreCertificateValidation);
        using (HttpClient client = new HttpClient())
        {
            if (contentType != null)
                client.DefaultRequestHeaders.Add("ContentType", contentType);
            if (headers != null)
            {
                foreach (var header in headers)
                    client.DefaultRequestHeaders.Add(header.Key, header.Value);
            }
            HttpResponseMessage response = await client.GetAsync(url);
            return await response.Content.ReadAsStringAsync();
        }
    }

    /// <summary>
    /// 发起POST同步请求
    /// </summary>
    /// <param name="url"></param>
    /// <param name="postData"></param>
    /// <param name="contentType">application/xml、application/json、application/text、application/x-www-form-urlencoded</param>
    /// <param name="headers">填充消息头</param>
    /// <returns></returns>
    public static T HttpPost<T>(string url, string postData = null, string contentType = "application/json", int timeOut = 30, Dictionary<string, string> headers = null)
    {
        return HttpPost(url, postData, contentType, timeOut, headers).ToEntity<T>();
    }

    /// <summary>
    /// 发起POST异步请求
    /// </summary>
    /// <param name="url"></param>
    /// <param name="postData"></param>
    /// <param name="contentType">application/xml、application/json、application/text、application/x-www-form-urlencoded</param>
    /// <param name="headers">填充消息头</param>
    /// <returns></returns>
    public static async Task<T> HttpPostAsync<T>(string url, string postData = null, string contentType = "application/json", int timeOut = 30, Dictionary<string, string> headers = null)
    {
        var res = await HttpPostAsync(url, postData, contentType, timeOut, headers);
        return res.ToEntity<T>();
    }

    /// <summary>
    /// 发起GET同步请求
    /// </summary>
    /// <param name="url"></param>
    /// <param name="headers"></param>
    /// <param name="contentType"></param>
    /// <returns></returns>
    public static T HttpGet<T>(string url, string contentType = "application/json", Dictionary<string, string> headers = null)
    {
        return HttpGet(url, contentType, headers).ToEntity<T>();
    }

    /// <summary>
    /// 发起GET异步请求
    /// </summary>
    /// <param name="url"></param>
    /// <param name="headers"></param>
    /// <param name="contentType"></param>
    /// <returns></returns>
    public static async Task<T> HttpGetAsync<T>(string url, string contentType = "application/json", Dictionary<string, string> headers = null)
    {
        var res = await HttpGetAsync(url, contentType, headers);
        return res.ToEntity<T>();
    }
}
/// <summary>
/// Json扩展方法
/// </summary>
public static class JsonExtends
{
    public static T ToEntity<T>(this string val)
    {
        return JsonConvert.DeserializeObject<T>(val);
    }
    public static string ToJson<T>(this T entity, Formatting formatting = Formatting.None)
    {
        return JsonConvert.SerializeObject(entity, formatting);
    }
}

}

标签：contentType,string,application,HttpHelper,headers,using,NET,null
From： https://www.cnblogs.com/ff-king/p/18653934