using AngleSharp.Dom;
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using Newtonsoft.Json;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Http.Headers;
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using System.Security.Policy;
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using System.Text;
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using System.Threading.Tasks;
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namespace WIDESEAWCS_Core.Helper
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{
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public class HttpHelper
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{
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public static async Task<string> GetAsync(string serviceAddress, Dictionary<string, object> parameters, string contentType = "application/json", Dictionary<string, string>? headers = null)
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{
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try
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{
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string result = string.Empty;
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using HttpClient httpClient = new HttpClient();
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httpClient.Timeout = new TimeSpan(0, 0, 60);
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// 将参数拼接到URL中
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string queryString = string.Join("&", parameters.Select(x => $"{x.Key}={x.Value}"));
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serviceAddress += "?" + queryString;
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if (headers != null)
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{
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foreach (var header in headers)
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httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
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}
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result = await httpClient.GetAsync(serviceAddress).Result.Content.ReadAsStringAsync();
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return result;
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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}
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return null;
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}
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// 用于追踪每个请求的调用次数和最后请求时间。
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private static readonly Dictionary<string, (int Count, DateTime LastRequestTime)> requestTracker = new();
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public static async Task<string> PostAsync(string serviceAddress, string requestJson = null, string contentType = "application/json", Dictionary<string, string>? headers = null)
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{
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try
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{
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if (serviceAddress.Contains("http://c24-cellmi3:12020"))
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{
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// 将 JSON 字符串转换为字典
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var parameters = JsonConvert.DeserializeObject<Dictionary<string, object>>(requestJson);
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// 创建一个新的字典，排除 RequestTime 和 SessionId
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var filteredParameters = parameters.Where(p => p.Key != "RequestTime" && p.Key != "SessionId").ToDictionary(p => p.Key, p => p.Value);
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string requestKey = $"{serviceAddress}:{JsonConvert.SerializeObject(filteredParameters)}";
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// 检查请求次数和时间限制
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if (requestTracker.TryGetValue(requestKey, out var requestInfo))
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{
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if (requestInfo.Count >= 5 && DateTime.Now < requestInfo.LastRequestTime.AddMinutes(3))
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{
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// 如果请求次数超过限制且未超过10分钟，抛出异常
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throw new InvalidOperationException("请求次数已达到限制，请稍后再试。");
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}
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}
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// 更新请求跟踪信息
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if (requestTracker.ContainsKey(requestKey))
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{
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requestTracker[requestKey] = (requestInfo.Count + 1, DateTime.Now);
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}
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else
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{
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requestTracker[requestKey] = (1, DateTime.Now);
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}
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}
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string result = string.Empty;
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using (HttpContent httpContent = new StringContent(requestJson))
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{
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httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
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using HttpClient httpClient = new HttpClient();
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httpClient.Timeout = new TimeSpan(0, 0, 120);
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if (headers != null)
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{
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foreach (var header in headers)
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httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
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}
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result = await httpClient.PostAsync(serviceAddress, httpContent).Result.Content.ReadAsStringAsync();
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}
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return result;
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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}
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return null;
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}
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public static string Get(string serviceAddress, string contentType = "application/json", Dictionary<string, string>? headers = null)
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{
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try
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{
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string result = string.Empty;
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using HttpClient httpClient = new HttpClient();
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httpClient.Timeout = new TimeSpan(0, 0, 60);
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foreach (var header in headers)
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httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
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result = httpClient.GetStringAsync(serviceAddress).Result;
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return result;
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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}
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return null;
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}
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public static string Post(string serviceAddress, string requestJson = null, string contentType = "application/json", Dictionary<string, string>? headers = null)
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{
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try
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{
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string result = string.Empty;
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using (HttpContent httpContent = new StringContent(requestJson))
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{
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httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
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using HttpClient httpClient = new HttpClient();
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httpClient.Timeout = new TimeSpan(0, 0, 60);
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foreach (var header in headers)
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httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
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result = httpClient.PostAsync(serviceAddress, httpContent).Result.Content.ReadAsStringAsync().Result;
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}
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return result;
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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}
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return null;
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}
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}
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}
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