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;
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using System.Net.Http.Headers;
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using System.Reflection.Metadata;
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using System.Text;
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using System.Text.Json;
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using System.Threading.Tasks;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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using Newtonsoft.Json;
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using WIDESEAWCS_Common;
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using WIDESEAWCS_Common.HttpEnum;
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using WIDESEAWCS_Core.Caches;
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namespace WIDESEA_Core
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{
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public class HttpClientHelper
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{
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private readonly IHttpClientFactory _httpClientFactory;
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private readonly ICacheService _cache;
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public HttpClientHelper(IHttpClientFactory httpClientFactory, ICacheService cache, IConfiguration configuration = null)
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{
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_httpClientFactory = httpClientFactory ?? throw new ArgumentNullException(nameof(httpClientFactory));
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_cache = cache ?? throw new ArgumentNullException(nameof(cache));
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}
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/// <summary>
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/// POST请求
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/// </summary>
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/// <param name="url">请求URL</param>
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/// <param name="content">请求内容</param>
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/// <param name="mediaType">媒体类型</param>
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/// <param name="config">请求配置</param>
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/// <returns></returns>
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public HttpResponseResult Post(string url, string content, string contentType = "application/json", HttpRequestConfig? config = null)
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{
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HttpResponseResult httpResponseResult = Task.Run(async () =>
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{
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return await ExecuteAsync(async (client) =>
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{
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var request = new HttpRequestMessage(HttpMethod.Post, url);
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request.Content = new StringContent(content ?? string.Empty, Encoding.UTF8, contentType);
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SetRequestHeaders(request, config?.Headers);
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return await client.SendAsync(request);
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}, config, $"POST {url}");
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}).GetAwaiter().GetResult();
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httpResponseResult.ApiUrl = url;
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return httpResponseResult;
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}
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public HttpResponseResult Get(string url, HttpRequestConfig? config = null)
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{
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HttpResponseResult httpResponseResult = Task.Run(async () =>
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{
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return await ExecuteAsync(async (client) =>
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{
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var request = new HttpRequestMessage(HttpMethod.Get, url);
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SetRequestHeaders(request, config?.Headers);
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return await client.SendAsync(request);
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}, config, $"GET {url}");
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}).GetAwaiter().GetResult();
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httpResponseResult.ApiUrl = url;
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return httpResponseResult;
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}
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/// <summary>
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/// POST请求
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/// </summary>
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/// <param name="url">请求URL</param>
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/// <param name="content">请求内容</param>
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/// <param name="mediaType">媒体类型</param>
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/// <param name="config">请求配置</param>
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/// <returns></returns>
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public HttpResponseResult<TResponse> Post<TResponse>(string url, string content, string contentType = "application/json", HttpRequestConfig? config = null)
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{
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url = BaseAPI.WMSBaseUrl + _cache.Get($"{RedisPrefix.Code}:{RedisName.API}:{url}");
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HttpResponseResult httpResponseResult = Post(url, content, contentType, config);
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HttpResponseResult<TResponse> result = new HttpResponseResult<TResponse>
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{
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IsSuccess = httpResponseResult.IsSuccess,
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StatusCode = httpResponseResult.StatusCode,
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Content = httpResponseResult.Content,
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Headers = httpResponseResult.Headers,
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Duration = httpResponseResult.Duration,
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ErrorMessage = httpResponseResult.ErrorMessage,
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Exception = httpResponseResult.Exception
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};
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if (result.IsSuccess && !string.IsNullOrEmpty(result.Content))
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{
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try
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{
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TResponse? response = JsonConvert.DeserializeObject<TResponse>(result.Content);
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if (response != null)
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{
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result.Data = response;
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}
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else
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{
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result.IsSuccess = false;
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result.ErrorMessage = "反序列化结果为null";
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}
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}
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catch (Exception ex)
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{
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result.IsSuccess = false;
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result.ErrorMessage = $"反序列化失败: {ex.Message}";
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result.Exception = ex;
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}
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}
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return result;
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}
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public HttpResponseResult<TResponse> Get<TResponse>(string url, HttpRequestConfig? config = null)
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{
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url = BaseAPI.WMSBaseUrl + _cache.Get($"{RedisPrefix.Code}:{RedisName.API}:{url}");
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HttpResponseResult httpResponseResult = Get(url, config);
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HttpResponseResult<TResponse> result = new HttpResponseResult<TResponse>
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{
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IsSuccess = httpResponseResult.IsSuccess,
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StatusCode = httpResponseResult.StatusCode,
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Content = httpResponseResult.Content,
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Headers = httpResponseResult.Headers,
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Duration = httpResponseResult.Duration,
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ErrorMessage = httpResponseResult.ErrorMessage,
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Exception = httpResponseResult.Exception
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};
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if (result.IsSuccess && !string.IsNullOrEmpty(result.Content))
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{
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try
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{
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TResponse? response = JsonConvert.DeserializeObject<TResponse>(result.Content);
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if (response != null)
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{
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result.Data = response;
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}
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else
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{
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result.IsSuccess = false;
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result.ErrorMessage = "反序列化结果为null";
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}
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}
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catch (Exception ex)
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{
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result.IsSuccess = false;
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result.ErrorMessage = $"反序列化失败: {ex.Message}";
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result.Exception = ex;
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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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/// 执行HTTP请求
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/// </summary>
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private async Task<HttpResponseResult> ExecuteAsync(Func<HttpClient, Task<HttpResponseMessage>> requestFunc, HttpRequestConfig? config, string requestInfo)
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{
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var result = new HttpResponseResult();
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var stopwatch = System.Diagnostics.Stopwatch.StartNew();
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config ??= new HttpRequestConfig();
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try
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{
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using var client = CreateHttpClient(config);
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HttpResponseMessage? response = null;
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Exception? lastException = null;
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// 重试机制
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for (int retry = 0; retry <= config.MaxRetryCount; retry++)
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{
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try
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{
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response = await requestFunc(client);
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if (response.StatusCode == System.Net.HttpStatusCode.OK)
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break;
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}
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catch (Exception ex) when (retry < config.MaxRetryCount)
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{
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lastException = ex;
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if (config.EnableLogging)
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{
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// TODO：日志记录
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}
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await Task.Delay(config.RetryIntervalMs, default);
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}
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}
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if (response == null)
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{
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throw lastException ?? new HttpRequestException("请求失败");
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}
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result.StatusCode = response.StatusCode;
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result.IsSuccess = response.IsSuccessStatusCode;
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// 读取响应内容
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result.Content = await response.Content.ReadAsStringAsync();
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// 获取响应头
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result.Headers = new Dictionary<string, IEnumerable<string>>();
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foreach (var header in response.Headers)
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{
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result.Headers[header.Key] = header.Value;
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}
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foreach (var header in response.Content.Headers)
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{
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result.Headers[header.Key] = header.Value;
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}
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if (config.EnableLogging)
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{
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// TODO：日志记录
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}
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}
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catch (Exception ex)
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{
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result.IsSuccess = false;
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result.ErrorMessage = ex.Message;
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result.Exception = ex;
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if (config.EnableLogging)
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{
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// TODO：日志记录
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}
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}
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finally
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{
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stopwatch.Stop();
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result.Duration = stopwatch.ElapsedMilliseconds;
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}
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return result;
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}
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/// <summary>
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/// 创建HttpClient
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/// </summary>
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private HttpClient CreateHttpClient(HttpRequestConfig config)
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{
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var client = _httpClientFactory.CreateClient();
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client.Timeout = TimeSpan.FromMilliseconds(config.TimeoutMs);
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// 设置默认请求头
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client.DefaultRequestHeaders.Clear();
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client.DefaultRequestHeaders.Accept.Clear();
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client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
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return client;
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}
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/// <summary>
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/// 设置请求头
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/// </summary>
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private void SetRequestHeaders(HttpRequestMessage request, Dictionary<string, string>? headers)
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{
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if (headers != null)
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{
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foreach (var header in headers)
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{
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if (!request.Headers.Contains(header.Key))
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{
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request.Headers.Add(header.Key, header.Value);
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}
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}
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}
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}
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}
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}
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