XdCxRhDW/XdCxRhDW.Core/HttpHelper.cs

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Security.Policy;
using System.Text;
using System.Threading.Tasks;
using XdCxRhDw.Dto;

namespace XdCxRhDW.Core
{
    public class HttpHelper
    {
        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="url"></param>
        /// <param name="dto">dto对象</param>
        /// <returns></returns>
        public static AjaxResult<T> PostRequest<T>(string url, object dto)
        {
            var content = new StringContent(JsonConvert.SerializeObject(dto), System.Text.Encoding.UTF8, "application/json");
            var handler = new HttpClientHandler() { UseCookies = false };
            HttpClient client = new HttpClient(handler);
            client.Timeout = TimeSpan.FromSeconds(20);
            var message = new HttpRequestMessage(HttpMethod.Post, url);
            message.Content = content;

            var response = client.SendAsync(message).Result;
            response.EnsureSuccessStatusCode();
            var result = response.Content.ReadAsStringAsync().Result;
            var AjaxResult = JsonConvert.DeserializeObject<AjaxResult<T>>(result);
            return AjaxResult;
        }


        public static string UploadFile(string localFile, string uploadUrl)
        {
            try
            {
                // 添加文件内容到 MultipartFormDataContent
                byte[] fileBytes = File.ReadAllBytes(localFile);
                MultipartFormDataContent content = new MultipartFormDataContent();
                ByteArrayContent fileContent = new ByteArrayContent(fileBytes);
                content.Add(fileContent, "file", Path.GetFileName(localFile));

                var handler = new HttpClientHandler() { UseCookies = false };
                HttpClient client = new HttpClient(handler);
                client.Timeout = TimeSpan.FromSeconds(20);
                var message = new HttpRequestMessage(HttpMethod.Post, uploadUrl);
                message.Content = content;

                var response = client.SendAsync(message).Result;
                response.EnsureSuccessStatusCode();
                var result = response.Content.ReadAsStringAsync().Result;
                var AjaxResult = JsonConvert.DeserializeObject<AjaxResult<FileUploadResDto>>(result);
                if (AjaxResult.code == 200)
                {
                    return AjaxResult.data.FileName;
                }
                else
                {
                    throw new Exception(AjaxResult.msg);
                }
            }
            catch
            {
                throw new Exception($"上传文件{Path.GetFileName(localFile)}到{uploadUrl}失败!");
            }
        }
    }
}