HttpListener.IsListening 属性
定义
获取一个值,指示 HttpListener 是否已启动。Gets a value that indicates whether HttpListener has been started.
public:
property bool IsListening { bool get(); };
public bool IsListening { get; }
member this.IsListening : bool
Public ReadOnly Property IsListening As Boolean
属性值
如果已启动 HttpListener,则为 true;否则为 false。true if the HttpListener was started; otherwise, false.
示例
下面的代码示例演示如何使用此属性来确定实例的侦听状态。The following code example demonstrates using this property to determine the listening state of an instance.
public static void DisplayPrefixesAndState(HttpListener listener)
{
// List the prefixes to which the server listens.
HttpListenerPrefixCollection prefixes = listener.Prefixes;
if (prefixes.Count == 0)
{
Console.WriteLine("There are no prefixes.");
}
foreach(string prefix in prefixes)
{
Console.WriteLine(prefix);
}
// Show the listening state.
if (listener.IsListening)
{
Console.WriteLine("The server is listening.");
}
}
Public Shared Sub DisplayPrefixesAndState(ByVal listener As HttpListener)
' List the prefixes to which the server listens.
Dim prefixes As HttpListenerPrefixCollection = listener.Prefixes
If prefixes.Count = 0 Then
Console.WriteLine("There are no prefixes.")
End If
For Each prefix As String In prefixes
Console.WriteLine(prefix)
Next
' Show the listening state.
If listener.IsListening Then
Console.WriteLine("The server is listening.")
End If
End Sub
注解
若要启动 HttpListener ,请调用 Start 方法。To start an HttpListener, call the Start method.