Net6Demo_Api/Net6Demo_Api.../Helper/HttpHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Extensions.Logging;

namespace Net6Demo_Api.Util
{
    public class HttpHelper
    {
        private readonly HttpClient _client;
        private readonly ILogger<HttpHelper> _logger;
        public HttpHelper(HttpClient client, ILogger<HttpHelper> logger)
        {
            _client = client;
            _logger = logger;
        }

        /// <summary>
        /// get请求
        /// </summary>
        /// <param name="url">请求地址</param>
        /// <returns></returns>
        public async Task<string> GetAsync(string url)
        {
            var response = await _client.GetAsync(url);
            if (response.IsSuccessStatusCode)
            {
                var result = await response.Content.ReadAsStringAsync();
                _logger.LogInformation("get请求url：" + url + "；返回结果：" + result);
                return result;
            }
            else
            {
                _logger.LogError("get请求url："+ url +"；返回结果："+ response.ToJson());
                return "";
            }
        }

        /// <summary>
        /// post请求
        /// </summary>
        /// <param name="url">请求地址</param>
        /// <param name="param">参数</param>
        /// <param name="contenttype">请求类型(默认application/json)</param>
        /// <returns></returns>
        public async Task<string> PostAsync(string url, string? param = null, string contenttype = "application/json")
        {
            var requestContent = new StringContent(param ?? "", Encoding.UTF8, contenttype);
            var response = await _client.PostAsync(url, requestContent);
            if (response.IsSuccessStatusCode)
            {
                var result = await response.Content.ReadAsStringAsync();
                return result;
            }
            else
            {
                _logger.LogError("post请求url：" + url + "；参数：" + param + "返回结果：" + response.ToJson());
                return "";
            }
        }

        /// <summary>
        /// put请求
        /// </summary>
        /// <param name="url">请求地址</param>
        /// <param name="param">参数</param>
        /// <param name="contenttype">请求类型(默认application/json)</param>
        /// <returns></returns>
        public async Task<string> PutAsync(string url, string? param = null, string contenttype = "application/json")
        {
            var requestContent = new StringContent(param ?? "", Encoding.UTF8, contenttype);
            var response = await _client.PutAsync(url, requestContent);
            if (response.IsSuccessStatusCode)
            {
                var result = await response.Content.ReadAsStringAsync();
                return result;
            }
            else
            {
                _logger.LogError("put请求url：" + url + "；参数：" + param + "返回结果：" + response.ToJson());
                return "";
            }
        }
    }
}