c# 【MVC】WebApi通过HttpClient来调用Web Api接口

/// <summary>
/// HttpClient实现Post请求(异步)
/// </summary>
static async void dooPost()
{
string url = "http://localhost:52824/api/register";
//设置HttpClientHandler的AutomaticDecompression
var handler = new HttpClientHandler() { AutomaticDecompression = DecompressionMethods.GZip };
//创建HttpClient（注意传入HttpClientHandler）
using (var http = new HttpClient(handler))
{
//使用FormUrlEncodedContent做HttpContent
var content = new FormUrlEncodedContent(new Dictionary<string, string>()
{    {"Id","6"},
{"Name","添加zzl"},
{"Info", "添加动作"}//键名必须为空
});

//await异步等待回应

var response = await http.PostAsync(url, content);
//确保HTTP成功状态值
response.EnsureSuccessStatusCode();
//await异步读取最后的JSON（注意此时gzip已经被自动解压缩了，因为上面的AutomaticDecompression = DecompressionMethods.GZip）
Console.WriteLine(await response.Content.ReadAsStringAsync());
}

}
/// <summary>
/// HttpClient实现Get请求(异步)
/// </summary>
static async void dooGet()
{
string url = "http://localhost:52824/api/register?id=1";
//创建HttpClient（注意传入HttpClientHandler）
var handler = new HttpClientHandler() { AutomaticDecompression = DecompressionMethods.GZip };

using (var http = new HttpClient(handler))
{
//await异步等待回应
var response = await http.GetAsync(url);
//确保HTTP成功状态值
response.EnsureSuccessStatusCode();

//await异步读取最后的JSON（注意此时gzip已经被自动解压缩了，因为上面的AutomaticDecompression = DecompressionMethods.GZip）
Console.WriteLine(await response.Content.ReadAsStringAsync());
}
}
/// <summary>
/// HttpClient实现Put请求(异步)
/// </summary>
static async void dooPut()
{
var userId = 1;
string url = "http://localhost:52824/api/register?userid=" + userId;

//设置HttpClientHandler的AutomaticDecompression
var handler = new HttpClientHandler() { AutomaticDecompression = DecompressionMethods.GZip };
//创建HttpClient（注意传入HttpClientHandler）
using (var http = new HttpClient(handler))
{
//使用FormUrlEncodedContent做HttpContent
var content = new FormUrlEncodedContent(new Dictionary<string, string>()
{
{"Name","修改zzl"},
{"Info", "Put修改动作"}//键名必须为空
});

//await异步等待回应

var response = await http.PutAsync(url, content);
//确保HTTP成功状态值
response.EnsureSuccessStatusCode();
//await异步读取最后的JSON（注意此时gzip已经被自动解压缩了，因为上面的AutomaticDecompression = DecompressionMethods.GZip）
Console.WriteLine(await response.Content.ReadAsStringAsync());
}
}