C# REST API ?? ??

RESTful ? API ????

RESTful Web API? ??? ? ?? WCF Web API? ASP.NET Web API? ?????? ?? ???? ?? ?????. RESTful ???? ????? Microsoft ASP.NET ? API ????? ?????? ??? ?? ?????.

C#?? REST API ?? ??

??? ASP.NET Web API ????? ?????? ???? ????? ????.

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Headers;

namespace ConsoleProgram
{
    public class DataObject
    {
        public string Name { get; set; }
    }

    public class Class1
    {
        private const string URL = "https://sub.domain.com/objects.json";
        private string urlParameters = "?api_key=123";

        static void Main(string[] args)
        {
            using (HttpClient client = new HttpClient()) // 使用using語句確保HttpClient被正確釋放
            {
                client.BaseAddress = new Uri(URL);

                // 添加JSON格式的Accept頭。
                client.DefaultRequestHeaders.Accept.Add(
                    new MediaTypeWithQualityHeaderValue("application/json"));

                try
                {
                    // 使用異步方法避免阻塞調(diào)用
                    var response = client.GetAsync(urlParameters).Result;

                    if (response.IsSuccessStatusCode)
                    {
                        // 解析響應(yīng)體。
                        var dataObjects = response.Content.ReadAsAsync<IEnumerable<DataObject>>().Result;
                        foreach (var d in dataObjects)
                        {
                            Console.WriteLine("{0}", d.Name);
                        }
                    }
                    else
                    {
                        Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
                    }
                }
                catch (HttpRequestException e)
                {
                    Console.WriteLine($"HTTP請(qǐng)求異常：{e.Message}");
                }
                catch (Exception e)
                {
                    Console.WriteLine($"發(fā)生異常：{e.Message}");
                }
            }
        }
    }
}

?? ??

?? ??? ???? ?? ?? ??? ???? ???? ?? ? ? ?? ????. ?? WebException? ???? ?? ?????. ASP.NET ? API ????? ?????? ??? ? ??? HttpRequestException?? ?????.

? ?????? ???? ??? ????? ??? ?? try-catch ??? ??? ? ????.

try
{
    // 在此處進(jìn)行請(qǐng)求
}
catch (HttpRequestException e)
{
    // 在此處處理異常
}
catch (Exception e) // 捕獲更通用的異常
{
    // 處理其他類型的異常
}

?? ??: ??? ??? ???? ?? using ?? ???? HttpClient? ???? ??????? ????, ??? GetAsync ??? ??? ???? ???? Exception??? ??? ?? ???? ?? ??? ??????. ???? ???? ? ?? ??? ??? ???? ? ??? ?? ?? ??? ??? ? ????. ? ??? ienumerable? ?? ??? ?????.

? ??? C#? ???? REST API? ???? ???? ??? ????? ??? ?? ????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!