.net 中后台訪問第三方接口的方式

訪問接口的方式無非GET，POST，PUT，DELETE等幾種，下面就簡單針對GET和POST記錄一下在.net core中的實現方式，廢話不多說，直接上代碼：

 

GET方式訪問

/// <summary>
        /// 調用API並返回結果字符串（http方式）
        /// </summary>
        /// <param name="url">訪問接口全路徑，包含參數</param>
        /// <returns>返回JSON字符串</returns>
        public static async Task<string> GetRequest(string url)
        {
            try
            {
                using (var httpClientHandler = new HttpClientHandler())
                {
　　　　　　　　　　　　//需要設置SSL訪問方式才需要寫下面一行代碼，如無要求，可以不寫
                    httpClientHandler.ServerCertificateCustomValidationCallback = (message, cert, chain, errors) => { return true; };

                    //HTTPClient
                    using (var client = new HttpClient(httpClientHandler))
                    {
                        //client.BaseAddress = new Uri(url);
                        //設置請求體中的內容，並以GET的方式請求
                        var response = await client.GetAsync(url);
                        //獲取請求到數據，並轉化為字符串
                        var result = response.Content.ReadAsStringAsync().Result;
                        return result;
                    }


                }
            }
            catch (Exception e)
            {
                throw e;
            }
        }

　　

POST方式如下

 /// <summary>
        /// 調用API並返回結果字符串（http方式）
        /// </summary>
        /// <param name="strAddr">服務器地址</param>
        /// <param name="param">參數字符串</param>
        /// <param name="token">Token</param>
        /// <returns>返回JSON字符串</returns>
        public static async Task<string> PostRequestAsync(string url, object param, string token = "")
        {
            try
            {
                using (var httpClientHandler = new HttpClientHandler())
                {
                    //需要設置SSL訪問方式才需要寫下面一行代碼，如無要求，可以不寫
                    httpClientHandler.ServerCertificateCustomValidationCallback = (message, cert, chain, errors) => { return true; };

                    //HTTPClient
                    using (var client = new HttpClient(httpClientHandler))
                    {
                        string jsonContent = JsonConvert.SerializeObject(param);
                        var content = new StringContent(jsonContent, Encoding.UTF8, "application/json");
                        client.DefaultRequestHeaders.Add("Method", "Post");
                        //client.BaseAddress = new Uri(url);
                        //設置請求體中的內容，並以post的方式請求
                        var response = await client.PostAsync(url, content);
                        response.EnsureSuccessStatusCode();
                        //獲取請求到數據，並轉化為字符串
                        var result = response.Content.ReadAsStringAsync().Result;
                        return result;
                    }


                }
            }
            catch (Exception e)
            {
                throw e;
            }
        }