C# HttpClient Get Post简单封装

前言

微软官方有Get和Post请求，我把他简单化处理一下

封装好的代码

 public class MyHttpHelper{private string baseUrl;/// <summary>/// 基础Api/// </summary>public string BaseUrl{get{return baseUrl;}set{baseUrl = value;MyHttpClient = new HttpClient(){BaseAddress = new Uri(baseUrl)};}}public HttpClient MyHttpClient { get; set; }public MyHttpHelper(){}public MyHttpHelper(string baseUrl){BaseUrl = baseUrl;}/// <summary>/// 序列化返回值/// </summary>/// <typeparam name="T"></typeparam>/// <param name="api"></param>/// <param name="strParams"></param>/// <returns></returns>public async Task<T> JsonHttpGet<T>(string api, Dictionary<string, string> strParams){var res = await MyHttpGet(api, strParams);return await res.Content.ReadFromJsonAsync<T>();}/// <summary>/// 序列化返回值/// </summary>/// <typeparam name="T"></typeparam>/// <param name="api"></param>/// <param name="value"></param>/// <param name="strParams"></param>/// <returns></returns>public async Task<T> JsonHttpPost<T>(string api, object value, Dictionary<string, string> strParams){var res = await MyHttpPost(api, value, strParams);return await res.Content.ReadFromJsonAsync<T>();}/// <summary>/// 序列化请求/// </summary>/// <param name="api"></param>/// <param name="param"></param>/// <returns></returns>public async Task<HttpResponseMessage> MyHttpGet(string api, Dictionary<string, string> param){string paramStr = DictionaryToParams(param);return await MyHttpClient.GetAsync(api + paramStr);}/// <summary>/// 自定义的转发功能/// </summary>/// <param name="api"></param>/// <param name="dataname"></param>/// <param name="value"></param>/// <returns></returns>public Task<HttpResponseMessage> MyHttpPost(string api, object value, Dictionary<string, string> strParams){return MyHttpClient.PostAsync(api + DictionaryToParams(strParams), new StringContent(JsonConvert.SerializeObject(value), Encoding.UTF8, "application/json"));}/// <summary>/// 字典转参数/// </summary>/// <param name="param"></param>/// <returns></returns>public string DictionaryToParams(Dictionary<string, string> param){var res = "";if (param != null){var list = param.ToList();if(list.Count != 0){for (var i = 0; i < list.Count; i++){if (i != 0){res += "&";}res += $"{list[i].Key}={list[i].Value}";}res = "?" + res;}}return res;}}

测试接口

不懂的可以自己去看一下我的这篇文章

.NET Core webapi 从零开始在IIS上面发布后端接口

实体类

    public class Person{public int Id { get; set; }public string Name { get; set; }}

  /// <summary>/// 测试类/// </summary>[Route("api/[controller]/[action]")][ApiController]public class TestController : ControllerBase{/// <summary>/// 测试Num/// </summary>/// <param name="num"></param>/// <returns></returns>[HttpGet]public int TestNum(int num){return num;}/// <summary>/// 测试Post/// </summary>/// <param name="num"></param>/// <returns></returns>[HttpPost]public Person TestPerson(Person person){return person;}/// <summary>/// Person+Num/// </summary>/// <param name="num"></param>/// <param name="person"></param>/// <returns></returns>[HttpPost]public Person TestPersonNum(int num,Person person){person.Id += num;return person;}}

测试代码

static void Main(string[] args)
{var httpHelper = new MyHttpHelper("https://localhost:7291/");Task.Run(async() =>{var res = await httpHelper.JsonHttpGet<int>("/api/Test/TestNum", new Dictionary<string, string> { { "num", "7" } });Console.WriteLine(res);var res2 = await httpHelper.JsonHttpPost<Person>("/api/Test/TestPerson", new Person() { Id = 4, Name = "小王" }, null);Console.WriteLine(JsonConvert.SerializeObject(res2));var res3 = await httpHelper.JsonHttpPost<Person>("/api/Test/TestPersonNum", new Person() { Id = 4, Name = "小王" }, new Dictionary<string, string>() { { "Num", "4" } });Console.WriteLine(JsonConvert.SerializeObject(res3));});Console.WriteLine("Hello, World!");Console.ReadKey();
}