找不到如何使用HttpContent

我正在尝试使用HttpContent:

HttpContent myContent = HttpContent.Create(SOME_JSON);

.．.但是我没有找到它定义的DLL。

首先，我尝试添加对微软的引用。Http和系统。Net，但都不在列表中。我还尝试添加对System.Net.Http的引用，但HttpContent类不可用。

有人能告诉我在哪能找到HttpContent类吗?

当前回答

只使用……

var stringContent = new StringContent(jObject.ToString());
var response = await httpClient.PostAsync("http://www.sample.com/write", stringContent);

Or,

var stringContent = new StringContent(JsonConvert.SerializeObject(model), Encoding.UTF8, "application/json");
var response = await httpClient.PostAsync("http://www.sample.com/write", stringContent);

2014-06-29 09:11:35

其他回答

要获取6footunder的注释并将其转换为答案，HttpContent是抽象的，所以你需要使用一个派生类:

2014-02-19 11:38:50

虽然最终版本的HttpContent和整个System.Net.Http命名空间将随.NET 4.5而来，但您可以通过从NuGet中添加Microsoft.Net.Http包来使用.NET 4版本

2012-06-21 19:23:48

对于JSON Post:

var stringContent = new StringContent(json, Encoding.UTF8, "application/json");
var response = await httpClient.PostAsync("http://www.sample.com/write", stringContent);

Non-JSON:

var stringContent = new FormUrlEncodedContent(new[]
{
    new KeyValuePair<string, string>("field1", "value1"),
    new KeyValuePair<string, string>("field2", "value2"),
});
var response = await httpClient.PostAsync("http://www.sample.com/write", stringContent);

https://blog.pedrofelix.org/2012/01/16/the-new-system-net-http-classes-message-content/

2017-12-20 19:49:07

就用微软。aspnet。webapi。client吧。

例子:

var client = HttpClientFactory.Create();
var result = await client.PostAsync<ExampleClass>("http://www.sample.com/write", new ExampleClass(), new JsonMediaTypeFormatter());

2020-07-23 08:23:35

只使用……

var stringContent = new StringContent(jObject.ToString());
var response = await httpClient.PostAsync("http://www.sample.com/write", stringContent);

Or,

var stringContent = new StringContent(JsonConvert.SerializeObject(model), Encoding.UTF8, "application/json");
var response = await httpClient.PostAsync("http://www.sample.com/write", stringContent);

2014-06-29 09:11:35

找不到如何使用HttpContent

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