WebRequestEvent 类
定义
为提供 Web 请求信息的事件定义基类。Defines the base class for events providing Web-request information.
public ref class WebRequestEvent : System::Web::Management::WebManagementEvent
public class WebRequestEvent : System.Web.Management.WebManagementEvent
type WebRequestEvent = class
inherit WebManagementEvent
Public Class WebRequestEvent
Inherits WebManagementEvent
- 继承
示例
下面的代码示例演示如何从 WebRequestEvent 类派生以创建自定义事件。The following code example shows how to derive from the WebRequestEvent class to create a custom event.
using System;
using System.Text;
using System.Web;
using System.Web.Management;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace SamplesAspNet
{
// Implements a custom WebRequestEvent.
public class SampleWebRequestEvent :
System.Web.Management.WebRequestEvent
{
private string customCreatedMsg,
customRaisedMsg;
// Invoked in case of events identified only
// by their event code.
public SampleWebRequestEvent(
string msg,
object eventSource, int eventCode):
base(msg, eventSource, eventCode)
{
// Perform custom initialization.
customCreatedMsg =
string.Format(
"Event created at: {0}",
EventTime.ToString());
}
// Invoked in case of events identified
// by their event code.and
// related event detailed code.
public SampleWebRequestEvent(string msg,
object eventSource, int eventCode,
int eventDetailCode):
base(msg, eventSource, eventCode,
eventDetailCode)
{
// Perform custom initialization.
customCreatedMsg =
string.Format(
"Event created at: {0}",
EventTime.ToString());
}
// Raises the SampleWebRequestEvent.
public override void Raise()
{
// Perform custom processing.
customRaisedMsg =
string.Format(
"Event raised at: {0}",
EventTime.ToString());
// Raise the event.
base.Raise();
}
//Formats Web request event information.
public override void FormatCustomEventDetails(
WebEventFormatter formatter)
{
// Add custom data.
formatter.AppendLine("");
formatter.IndentationLevel += 1;
formatter.AppendLine(
"* Custom Request Information Start *");
//// Display custom event timing.
formatter.AppendLine(customCreatedMsg);
formatter.AppendLine(customRaisedMsg);
formatter.AppendLine(
"* Custom Request Information End *");
formatter.IndentationLevel -= 1;
}
}
}
Imports System.Text
Imports System.Web
Imports System.Web.Management
Imports System.Web.UI
Imports System.Web.UI.WebControls
' Implements a custom WebRequestEvent.
Public Class SampleWebRequestEvent
Inherits System.Web.Management.WebRequestEvent
Private customCreatedMsg, customRaisedMsg As String
' Invoked in case of events identified only
' by their event code.
Public Sub New(ByVal msg As String, _
ByVal eventSource As Object, _
ByVal eventCode As Integer)
MyBase.New(msg, eventSource, eventCode)
' Perform custom initialization.
customCreatedMsg = String.Format( _
"Event created at: {0}", _
EventTime.ToString())
End Sub
' Invoked in case of events identified
' by their event code.and
' related event detailed code.
Public Sub New(ByVal msg As String, _
ByVal eventSource As Object, _
ByVal eventCode As Integer, _
ByVal eventDetailCode As Integer)
MyBase.New(msg, eventSource, _
eventCode, eventDetailCode)
' Perform custom initialization.
customCreatedMsg = String.Format( _
"Event created at: {0}", _
EventTime.ToString())
End Sub
' Raises the SampleWebRequestEvent.
Public Overrides Sub Raise()
' Perform custom processing.
customRaisedMsg = String.Format( _
"Event raised at: {0}", _
EventTime.ToString())
' Raise the event.
MyBase.Raise()
End Sub
'Formats Web request event information.
Public Overrides Sub FormatCustomEventDetails( _
ByVal formatter As WebEventFormatter)
' Add custom data.
formatter.AppendLine("")
formatter.IndentationLevel += 1
formatter.AppendLine( _
"* Custom Request Information Start *")
'// Display custom event timing.
formatter.AppendLine(customCreatedMsg)
formatter.AppendLine(customRaisedMsg)
formatter.AppendLine( _
"* Custom Request Information End *")
formatter.IndentationLevel -= 1
End Sub
End Class
下面是配置文件的摘录,使 ASP.NET 可以使用自定义事件。The following is an excerpt of the configuration file that enables ASP.NET to use the custom event.
<healthMonitoring
enabled="true" heartBeatInterval="0">
<providers>
<!-- Define the custom provider that
processes custom Web request events. -->
<add name="SampleWebEventProvider"
type="SamplesAspNet.SampleEventProvider,webeventprovider,Version=1.0.1573.18094, Culture=neutral, PublicKeyToken=b5a57a9a9d487cf4, processorArchitecture=MSIL"/>
</providers>
<eventMappings>
<!-- Define the event source that
issues custom events. -->
<add name="SampleWebRequestEvent"
type="SamplesAspNet.SampleWebRequestEvent,webrequestevent,Version=1.0.1573.23947, Culture=neutral, PublicKeyToken=e717d983a78c8ddb, processorArchitecture=MSIL"/>
</eventMappings>
<rules>
<!-- Associate custom event with
related custom provider -->
<add
name="CustomWebRequestEvent"
eventName="SampleWebRequestEvent"
provider="SampleWebEventProvider"
profile="Critical"/>
</rules>
</healthMonitoring>
注解
WebRequestEvent每个 Web 请求引发。The WebRequestEvent is raised at every Web request.
它使用 WebRequestInformation 类来获取请求信息。It uses the WebRequestInformation class to obtain request information.
备注
在大多数情况下,你将使用标准 ASP.NET health 监视类型,并通过设置配置节来控制它们的行为 healthMonitoring 。In most cases you will use the standard ASP.NET health-monitoring types and control their behavior by setting the healthMonitoring configuration section. 您还可以创建自定义类型,如下面的示例中所示。You can also create custom types, as shown in the next example. 如果创建自定义事件类型,并且需要添加自己的信息,请自定义 FormatCustomEventDetails 方法。If you create your custom event type and you need to add your own information, customize the FormatCustomEventDetails method. 这将避免覆盖或篡改敏感系统信息。This will avoid overwriting or tampering with sensitive system information.
构造函数
| WebRequestEvent(String, Object, Int32) |
使用指定的事件参数对 WebRequestEvent 类进行初始化。Initializes the WebRequestEvent class with specified event parameters. |
| WebRequestEvent(String, Object, Int32, Int32) |
使用指定的事件参数对 WebRequestEvent 类进行初始化。Initializes the WebRequestEvent class with specified event parameters. |
属性
| EventCode |
获取与该事件关联的代码值。Gets the code value associated with the event. (继承自 WebBaseEvent) |
| EventDetailCode |
获取事件详细信息代码。Gets the event detail code. (继承自 WebBaseEvent) |
| EventID |
获取与事件关联的标识符。Gets the identifier associated with the event. (继承自 WebBaseEvent) |
| EventOccurrence |
获取表示事件发生次数的计数器。Gets a counter that represents the number of times the event has occurred. (继承自 WebBaseEvent) |
| EventSequence |
获取应用程序已引发事件的次数。Gets the number of times the event has been raised by the application. (继承自 WebBaseEvent) |
| EventSource |
获取引发事件的对象。Gets the object that raises the event. (继承自 WebBaseEvent) |
| EventTime |
获取引发事件的时间。Gets the time when the event was raised. (继承自 WebBaseEvent) |
| EventTimeUtc |
获取引发事件的时间。Gets the time when the event was raised. (继承自 WebBaseEvent) |
| Message |
获取描述事件的消息。Gets the message that describes the event. (继承自 WebBaseEvent) |
| ProcessInformation |
获取有关 ASP.NET 应用程序承载进程的信息。Gets information about the ASP.NET application-hosting process. (继承自 WebManagementEvent) |
| RequestInformation |
获取与 Web 应用程序请求关联的信息。Gets the information associated with the Web-application request. |
方法
| Equals(Object) |
确定指定对象是否等于当前对象。Determines whether the specified object is equal to the current object. (继承自 Object) |
| FormatCustomEventDetails(WebEventFormatter) |
提供事件信息的标准格式设置。Provides standard formatting of the event information. (继承自 WebBaseEvent) |
| GetHashCode() |
作为默认哈希函数。Serves as the default hash function. (继承自 Object) |
| GetType() |
获取当前实例的 Type。Gets the Type of the current instance. (继承自 Object) |
| IncrementPerfCounters() |
在内部使用,用于递增性能计数器。Used internally to increment the performance counters. |
| MemberwiseClone() |
创建当前 Object 的浅表副本。Creates a shallow copy of the current Object. (继承自 Object) |
| Raise() |
通过将事件已发生这一情况通知任何已配置的提供程序来引发事件。Raises an event by notifying any configured provider that the event has occurred. (继承自 WebBaseEvent) |
| ToString() |
为显示而对事件信息进行格式化。Formats event information for display purposes. (继承自 WebBaseEvent) |
| ToString(Boolean, Boolean) |
为显示而对事件信息进行格式化。Formats event information for display purposes. (继承自 WebBaseEvent) |