.net HTTP请求类封装

using System;
using System.IO;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json; // 需要安装 Newtonsoft.Json NuGet 包

public class HttpRequestHelper
{
    private readonly HttpClient _httpClient;
    private readonly string _baseUrl;

    public HttpRequestHelper(string baseUrl)
    {
        _httpClient = new HttpClient();
        _baseUrl = baseUrl;
    }

    public async Task<T> GetAsync<T>(string endpoint)
    {
        try
        {
            var url = $"{_baseUrl}{endpoint}";
            var response = await _httpClient.GetAsync(url);
            response.EnsureSuccessStatusCode();
            var content = await response.Content.ReadAsStringAsync();
            return JsonConvert.DeserializeObject<T>(content);
        }
        catch (HttpRequestException ex)
        {
            Console.WriteLine($"Request error: {ex.Message}");
            throw;
        }
    }

    public async Task<T> PostAsync<T, TRequestBody>(string endpoint, TRequestBody body)
    {
        try
        {
            var url = $"{_baseUrl}{endpoint}";
            var content = new StringContent(JsonConvert.SerializeObject(body), Encoding.UTF8, "application/json");
            var response = await _httpClient.PostAsync(url, content);
            response.EnsureSuccessStatusCode();
            var responseContent = await response.Content.ReadAsStringAsync();
            return JsonConvert.DeserializeObject<T>(responseContent);
        }
        catch (HttpRequestException ex)
        {
            Console.WriteLine($"Request error: {ex.Message}");
            throw;
        }
    }
}

using System;
using System.Threading.Tasks;

public class Example
{
    public static async Task Main(string[] args)
    {
        var helper = new HttpRequestHelper("https://api.example.com");

        // 发送 GET 请求
        var getResponse = await helper.GetAsync<GetResponse>("endpoint/get");
        Console.WriteLine($"GET response: {JsonConvert.SerializeObject(getResponse, Formatting.Indented)}");

        // 发送 POST 请求
        var postRequestBody = new PostRequestBody
        {
            Property1 = "Value1",
            Property2 = 123
        };
        var postResponse = await helper.PostAsync<PostResponse, PostRequestBody>("endpoint/post", postRequestBody);
        Console.WriteLine($"POST response: {JsonConvert.SerializeObject(postResponse, Formatting.Indented)}");
    }

    public class GetResponse
    {
        // 根据你的 API 响应定义属性
        public string Property1 { get; set; }
        public int Property2 { get; set; }
    }

    public class PostRequestBody
    {
        // 根据你的 API 请求体定义属性
        public string Property1 { get; set; }
        public int Property2 { get; set; }
    }

    public class PostResponse
    {
        // 根据你的 API 响应定义属性
        public string Message { get; set; }
        public bool Success { get; set; }
    }
}