public static async Task<string> GetData(string url, string data)
{
UriBuilder fullUri = new UriBuilder(url);
if (!string.IsNullOrEmpty(data))
fullUri.Query = data;
HttpClient client = new HttpClient();
HttpResponseMessage response = await client.PostAsync(new Uri(url), /*expects HttpContent*/);
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
return responseBody;
}
PostAsync
接受另一个需要为HttpContent
的参数。
如何设置HttpContent
?任何地方都没有适用于Windows Phone 8的文档。
如果我使用GetAsync
,它会工作得很好!但它需要与key="bla",something="yay“的内容一起发布
//编辑
非常感谢你的回答...这工作得很好,但这里仍然有一些不确定的地方:
public static async Task<string> GetData(string url, string data)
{
data = "test=something";
HttpClient client = new HttpClient();
StringContent queryString = new StringContent(data);
HttpResponseMessage response = await client.PostAsync(new Uri(url), queryString );
//response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
return responseBody;
}
我假设的数据"test=something“会在API端作为post数据"test”拾取,显然不是这样。另一方面,我可能需要通过post数据来post整个对象/数组,所以我认为json是最好的选择。对如何获取post数据有什么想法吗?
可能是这样的:
class SomeSubData
{
public string line1 { get; set; }
public string line2 { get; set; }
}
class PostData
{
public string test { get; set; }
public SomeSubData lines { get; set; }
}
PostData data = new PostData {
test = "something",
lines = new SomeSubData {
line1 = "a line",
line2 = "a second line"
}
}
StringContent queryString = new StringContent(data); // But obviously that won't work
发布于 2013-09-24 09:57:03
在Can't find how to use HttpContent的一些答案中以及在本blog post中都回答了这一问题。
总之,您不能直接设置HttpContent
的实例,因为它是一个抽象类。根据您的需要,您需要使用一个从它派生的类。很可能是StringContent
,它允许您在构造函数中设置响应的字符串值、编码和媒体类型。请参阅:http://msdn.microsoft.com/en-us/library/system.net.http.stringcontent.aspx
发布于 2017-02-22 07:36:28
为了补充普雷斯顿的答案,下面是标准库中可用的HttpContent
派生类的完整列表:
Credit:https://pfelix.wordpress.com/2012/01/16/the-new-system-net-http-classes-message-content/
还有一个假定的ObjectContent
,但我在ASP.NET Core
中找不到它。
当然,你可以用Microsoft.AspNet.WebApi.Client
扩展跳过整个HttpContent
的事情(现在你必须做一个导入才能让它在ASP.NET核心中工作:https://github.com/aspnet/Home/issues/1558),然后你可以做如下事情:
var response = await client.PostAsJsonAsync("AddNewArticle", new Article
{
Title = "New Article Title",
Body = "New Article Body"
});
发布于 2021-02-27 06:07:26
public async Task<ActionResult> Index()
{
apiTable table = new apiTable();
table.Name = "Asma Nadeem";
table.Roll = "6655";
string str = "";
string str2 = "";
HttpClient client = new HttpClient();
string json = JsonConvert.SerializeObject(table);
StringContent httpContent = new StringContent(json, System.Text.Encoding.UTF8, "application/json");
var response = await client.PostAsync("http://YourSite.com/api/apiTables", httpContent);
str = "" + response.Content + " : " + response.StatusCode;
if (response.IsSuccessStatusCode)
{
str2 = "Data Posted";
}
return View();
}
https://stackoverflow.com/questions/18971510
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