Question

使用HttpWebRequest进行HTTP调用，我发现它没有Timeout属性？

例如：

        HttpWebRequest request = WebRequest.Create(aWebUrl) as HttpWebRequest;
        request.ContentType = "application/json";
        request.Method = "GET";

由于

Answer 1

我想你可以看看James Montemagno's plugin

有一个Utils可以帮助您检查异步调用是否超时。我认为您可以将它与Web请求一起使用。

namespace MvvmHelpers
{
    /// <summary>
    /// Extension Utils
    /// </summary>
    public static class Utils
    {
        /// <summary>
        /// Task extension to add a timeout.
        /// </summary>
        /// <returns>The task with timeout.</returns>
        /// <param name="task">Task.</param>
        /// <param name="timeoutInMilliseconds">Timeout duration in Milliseconds.</param>
        /// <typeparam name="T">The 1st type parameter.</typeparam>
        public async static Task<T> WithTimeout<T>(this Task<T> task, int timeoutInMilliseconds)
        {
            var retTask = await Task.WhenAny(task, Task.Delay(timeoutInMilliseconds))
                .ConfigureAwait(false);

            if (retTask is Task<T>) 
                return task.Result;

            return default(T);
        }

        /// <summary>
        /// Task extension to add a timeout.
        /// </summary>
        /// <returns>The task with timeout.</returns>
        /// <param name="task">Task.</param>
        /// <param name="timeout">Timeout Duration.</param>
        /// <typeparam name="T">The 1st type parameter.</typeparam>
        public static Task<T> WithTimeout<T>(this Task<T> task, TimeSpan timeout) =>
            WithTimeout(task, (int)timeout.TotalMilliseconds);

    }
}

您可以在此视频Channel 9 MVVM helper

中找到相关说明

否则你可以使用具有＆＃34;超时＆＃34;的HttpClient。属性

Timeout

Xamarin Form的HttpWebRequest没有超时属性？

1 个答案: