ServicePointManager.DnsRefreshTimeout 属性

参考

定义

命名空间:: System.Net

程序集:: System.Net.ServicePoint.dll

程序集:: System.Net.Requests.dll

程序集:: System.dll

程序集:: netstandard.dll

Source:: ServicePointManager.cs

Source:: ServicePointManager.cs

Source:: ServicePointManager.cs

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

获取或设置一个值，该值指示域名服务 (DNS) 解析多长时间内视为有效。

public:
 static property int DnsRefreshTimeout { int get(); void set(int value); };

public static int DnsRefreshTimeout { get; set; }

static member DnsRefreshTimeout : int with get, set

Public Shared Property DnsRefreshTimeout As Integer

属性值

Int32

超时值（以毫秒为单位）。值 -1 指示超时期限无限。默认值是 120,000 毫秒（2 分钟）。

示例

下面的代码示例设置此属性。

ServicePointManager::UseNagleAlgorithm = true;
ServicePointManager::Expect100Continue = true;
ServicePointManager::CheckCertificateRevocationList = true;
ServicePointManager::DefaultConnectionLimit =
    ServicePointManager::DefaultPersistentConnectionLimit;
ServicePointManager::EnableDnsRoundRobin = true;
ServicePointManager::DnsRefreshTimeout = 4*60*1000; // 4 minutes

ServicePointManager.UseNagleAlgorithm = true;
ServicePointManager.Expect100Continue = true;
ServicePointManager.CheckCertificateRevocationList = true;
ServicePointManager.DefaultConnectionLimit = ServicePointManager.DefaultPersistentConnectionLimit;
ServicePointManager.EnableDnsRoundRobin = true;
ServicePointManager.DnsRefreshTimeout = 4*60*1000; // 4 minutes

ServicePointManager.UseNagleAlgorithm = True
ServicePointManager.Expect100Continue = True
ServicePointManager.CheckCertificateRevocationList = True
ServicePointManager.DefaultConnectionLimit = _
    ServicePointManager.DefaultPersistentConnectionLimit
ServicePointManager.EnableDnsRoundRobin = True
ServicePointManager.DnsRefreshTimeout = 4*60*1000

适用于

另请参阅

ServicePoint