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.NET 开发
先前版本
System.Web.UI
Page 类
Page 属性
 Request 属性

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此页面仅适用于
Microsoft Visual Studio 2005/.NET Framework 2.0

同时提供下列产品的其他版本:
.NET Framework 类库
Page.Request 属性

获取请求的页的 HttpRequest 对象。

命名空间:System.Web.UI
程序集:System.Web(在 system.web.dll 中)

Visual Basic(声明)
Public ReadOnly Property Request As HttpRequest
Visual Basic(用法)
Dim instance As Page
Dim value As HttpRequest

value = instance.Request
C#
public HttpRequest Request { get; }
C++
public:
property HttpRequest^ Request {
    HttpRequest^ get ();
}
J#
/** @property */
public HttpRequest get_Request ()
JScript
public function get Request () : HttpRequest

属性值

当前与该页关联的 HttpRequest
异常类型条件

HttpException

HttpRequest 对象不可用时发生。

包含有关当前 HTTP 请求的信息的 HttpRequest 对象。

下面的示例说明如何从 HttpRequest 对象获取 Headers 集合并将其写入 ASP.NET 页。

Visual Basic
Dim loop1, loop2 As Integer
 Dim arr1(), arr2() As String
 Dim coll As NameValueCollection
 

' Load Header collection into NameValueCollection object.
coll=Request.Headers

' Put the names of all keys into a string array.
arr1 = coll.AllKeys 
For loop1 = 0 To arr1.GetUpperBound(0)
   Response.Write("Key: " & arr1(loop1) & "<br>")
   arr2 = coll.GetValues(loop1) 
   ' Get all values under this key.
   For loop2 = 0 To arr2.GetUpperBound(0)
      Response.Write("Value " & CStr(loop2) & ": " & Server.HtmlEncode(arr2(loop2)) & "<br>")
    Next loop2
 Next loop1
   
C#
int loop1, loop2;
NameValueCollection coll;
 
// Load Header collection into NameValueCollection object.
coll=Request.Headers;

// Put the names of all keys into a string array.
String[] arr1 = coll.AllKeys; 
for (loop1 = 0; loop1<arr1.Length; loop1++) 
{
   Response.Write("Key: " + arr1[loop1] + "<br>");
   // Get all values under this key.
   String[] arr2=coll.GetValues(arr1[loop1]);
   for (loop2 = 0; loop2<arr2.Length; loop2++) 
   {
      Response.Write("Value " + loop2 + ": " + Server.HtmlEncode(arr2[loop2]) + "<br>");
   }
}
   
J#
int loop1, loop2;
NameValueCollection coll;

// Load Header collection into NameValueCollection object.
coll = get_Request().get_Headers();

// Put the names of all keys into a string array.
String arr1[] = coll.get_AllKeys();
for (loop1 = 0; loop1 < arr1.length; loop1++) {
    get_Response().Write(("Key: " + arr1[loop1] + "<br>"));
    // Get all values under this key.
    String arr2[] = coll.GetValues(arr1[loop1]);
    for (loop2 = 0; loop2 < arr2.length; loop2++) {
        get_Response().Write(("Value " + loop2 + ": "
            + get_Server().HtmlEncode(arr2[loop2]) + "<br>"));
    }
}
JScript
var arr1, arr2 : String[]
var coll : NameValueCollection

coll=Request.Headers  // Load Header collection into NameValueCollection object.
arr1 = coll.AllKeys   // Put names of all keys into a string array.
for(var i=0; i < arr1.Length; i++){
  Response.Write("Key: " + arr1[i] + "<br>")
  arr2 = coll.GetValues(i) // Get all values under this key.
  for(var j=0; j < arr2.Length; j++){
      Response.Write("Value " + j + ": " + Server.HtmlEncode(arr2[j]) + "<br>")
  }
}

Windows 98、Windows 2000 SP4、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表,请参见系统要求

.NET Framework

受以下版本支持:2.0、1.1、1.0
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