C#之HttpClient的同步使用方式
作者：cnwjl
这篇文章主要介绍了C#之HttpClient的同步使用方式,具有很好的参考价值,希望对大家有所帮助,如有错误或未考虑完全的地方,望不吝赐教
C# HttpClient的同步使用
无返回值 函数
private async void getservertime()
{
string servertime = "0";//实际应用时用全局变量 ，传入参数不可用ref out关键字
HttpClientHandler handler1 = new HttpClientHandler();
handler1.AllowAutoRedirect = false;
HttpClient httpClient1 = new HttpClient(handler1);
httpClient1.DefaultRequestHeaders.Add("user-agent", UserAgent);
if (InternetGetConnectedState(0, 0) == false)
{
//未联网
servertime = "0";
return ;
}
try
{
HttpResponseMessage result = await httpClient1.GetAsync("https://api.m.taobao.com/rest/api3.do?api=mtop.common.getTimestamp");
if (result.IsSuccessStatusCode)
{
result.EnsureSuccessStatusCode();
string responseBodyAsText = await result.Content.ReadAsStringAsync();
JObject sertime = JObject.Parse(responseBodyAsText);
servertime=sertime["data"]["t"].ToString();
}
else
{
servertime= "0";
}
}
catch (HttpRequestException hre)
{
servertime = "0"; ;
}
handler1.Dispose();
httpClient1.Dispose();
}有返回值函数
private string getservertime()
{
HttpClientHandler handler1 = new HttpClientHandler();
handler1.AllowAutoRedirect = false;
HttpClient httpClient1 = new HttpClient(handler1);
httpClient1.DefaultRequestHeaders.Add("user-agent", UserAgent);
if (InternetGetConnectedState(0, 0) == false)
{
//未联网
return "0";
}
try
{
var task = httpClient1.GetAsync("https://api.m.taobao.com/rest/api3.do?api=mtop.common.getTimestamp");
task.Wait();
if (task.Result.IsSuccessStatusCode)
task.Result.EnsureSuccessStatusCode();
else
{
return "0";
}
HttpResponseMessage response = task.Result;
// txtStatusCode.Text = response.StatusCode + " " + response.ReasonPhrase + Environment.NewLine;
var result = response.Content.ReadAsStringAsync();
string responseBodyAsText = result.Result;
JObject sertime = JObject.Parse(responseBodyAsText);
handler1.Dispose();
httpClient1.Dispose();
return (sertime["data"]["t"].ToString());
}
catch (HttpRequestException hre)
{
hre.ToString();
}
handler1.Dispose();
httpClient1.Dispose();
return "0";
}C# HttpClient对接接口
最近在写对接DHL接口的项目，大致了解了一些对接接口的请求方法。
POST带参数，账号认证请求
HttpClient client = new HttpClient();
//添加用户身份认证
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.UTF8.GetBytes($"{"账号"}:{"密码"}")));
HttpContent httpContent = new StringContent(stringBuilder.ToString(), Encoding.UTF8);
httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
Uri url = new Uri("请求链接");
//httpContent为请求携带的Json数据
var msg = client.PostAsync(url, httpContent).Result.Content.ReadAsStringAsync().Result;Get带账号认证请求
HttpClient client = new HttpClient();
//添加用户身份认证
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.UTF8.GetBytes($"{"账号"}:{"密码"}")));
Uri url = new Uri("请求链接");
var msg = client.GetAsync(url).Result.Content.ReadAsStringAsync().Result;总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。