.NET HttpClient.如何发布字符串值？
.NET HttpClient.如何发布字符串值？
提问于 2013-03-03 00:10:10
如何使用C#和HttpClient创建以下POST请求：
我的WEB API服务需要这样一个请求：
[ActionName("exist")]
[HttpPost]
public bool CheckIfUserExist([FromBody] string login)
{
return _membershipProvider.CheckIfExist(login);
}回答 5
Stack Overflow用户
回答已采纳
发布于 2013-03-03 00:22:42
using System;
using System.Collections.Generic;
using System.Net.Http;
class Program
{
static void Main(string[] args)
{
Task.Run(() => MainAsync());
Console.ReadLine();
}
static async Task MainAsync()
{
using (var client = new HttpClient())
{
client.BaseAddress = new Uri("http://localhost:6740");
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("", "login")
});
var result = await client.PostAsync("/api/Membership/exists", content);
string resultContent = await result.Content.ReadAsStringAsync();
Console.WriteLine(resultContent);
}
}
}Stack Overflow用户
发布于 2013-03-03 00:19:32
以下是同步调用的示例，但您可以使用await-sync轻松更改为异步调用：
var pairs = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>("login", "abc")
};
var content = new FormUrlEncodedContent(pairs);
var client = new HttpClient {BaseAddress = new Uri("http://localhost:6740")};
// call sync
var response = client.PostAsync("/api/membership/exist", content).Result;
if (response.IsSuccessStatusCode)
{
}Stack Overflow用户
发布于 2020-03-03 20:38:58
Here我找到了这篇文章，它是使用JsonConvert.SerializeObject()和StringContent()向HttpClient.PostAsync数据发送post请求
static async Task Main(string[] args)
{
var person = new Person();
person.Name = "John Doe";
person.Occupation = "gardener";
var json = Newtonsoft.Json.JsonConvert.SerializeObject(person);
var data = new System.Net.Http.StringContent(json, Encoding.UTF8, "application/json");
var url = "https://httpbin.org/post";
using var client = new HttpClient();
var response = await client.PostAsync(url, data);
string result = response.Content.ReadAsStringAsync().Result;
Console.WriteLine(result);
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/15176538
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