[英]Convert Httpwebrequest to Httpclient
这是获取令牌的完整代码。 我想把它翻译成Httpclient。 希望有人能帮助我。 我想从 httpwebrequest 切换到 httpclient 非常感谢你帮助我。
public static async Task<TokenInfo> GetToken(string userName, string password)
{
string text = "https://api.site.io/v4/sessions.json?app=100005a&t=1569053071";
string postDataStr = string.Concat(new string[]
{
"{\"password\": \"", password,
"\", \"login_id\": \"", userName,"\"}"
});
var token_info = JObject.Parse(await Post(text, postDataStr));
var token = token_info["token"].ToString();
string user = token_info["user"]["name"].ToString();
string country = token_info["user"]["country"].ToString();
return new TokenInfo()
{
Token = token,
Name = user,
Country = country
};
}
private static HttpWebRequest httpWebRequest;
public static async Task<string> Post(string Url, string postDataStr)
{
var uri = new Uri(Url);
httpWebRequest = (HttpWebRequest)WebRequest.Create(uri);
httpWebRequest.Method = "POST";
httpWebRequest.ContentType = "text/plain";
httpWebRequest.KeepAlive = false;
httpWebRequest.ContentLength = (long)Encoding.UTF8.GetByteCount(postDataStr);
using (var writer = new StreamWriter(httpWebRequest.GetRequestStream(), Encoding.GetEncoding("gb2312")))
{
await writer.WriteAsync(postDataStr);
}
using (var response = (await httpWebRequest.GetResponseAsync()).GetResponseStream())
{
using (var reader = new StreamReader(response, Encoding.GetEncoding("utf-8")))
{
var result = await reader.ReadToEndAsync();
Console.WriteLine(result);
return result;
}
}
}
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls |
SecurityProtocolType.Tls11 |
SecurityProtocolType.Tls12;
HttpClient httpClient = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Post, Url)
{
Content = new StringContent(postDataStr, Encoding.UTF8, "text/plain")
};
using (var response = await httpClient.SendAsync(request))
{
response.EnsureSuccessStatusCode();
var body = await response.Content.ReadAsStringAsync();
}
这是一个发布请求的示例,例如您使用HttpClient
发布的示例
public static async Task<string> Post(string url, Dictionary<string,string> postParameters)
{
using (HttpClient client = new HttpClient())
{
HttpContent postData = new FormUrlEncodedContent(postParameters);
HttpResponseMessage response = await client.PostAsync(url, postData);
if (response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
return content;
}
else
{
//Do something when request fails
return string.Empty;
}
}
}
我添加了一个Dictionary<string, string>
而不是您的方法中的 postDataStr 参数
因此,假设您想将一些数据发布到需要一些数据(如用户名和密码)的端点,那么您可以这样做:
Dictionary<string, string> postData = new Dictionary<string, string>();
postData.Add("Username", "MyUsername");
postData.Add("Password", "MyPassword");
await Post("MyUrl", postData);
如果您更喜欢发送纯字符串而不是使用 Dictionary 解决方案,您可以这样做:
public static async Task<string> Post(string url, string postDataStr)
{
using (HttpClient client = new HttpClient())
{
client.DefaultRequestHeaders.Add("Content-Type", "text/plain");
HttpContent postData = new StringContent(postDataStr);
HttpResponseMessage response = await client.PostAsync(url, postData);
if (response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
return content;
}
else
{
//Do something when request fails
return string.Empty;
}
}
}
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