ASP ServerVariables 集合

定义和用法

ServerVariables 集合用于取回服务器变量的值。

语法

  1. Request.ServerVariables (server_variable)
参数 描述
server_variable 必需。要取回的服务器变量的名称。

服务器变量

变量 描述
ALLHTTP Returns all HTTP headers sent by the client. Always prefixed with HTTP and capitalized
ALLRAW Returns all headers in raw form
APPL_MD_PATH Returns the meta base path for the application for the ISAPI DLL
APPL_PHYSICAL_PATH Returns the physical path corresponding to the meta base path
AUTH_PASSWORD Returns the value entered in the client's authentication dialog
AUTH_TYPE The authentication method that the server uses to validate users
AUTH_USER Returns the raw authenticated user name
CERT_COOKIE Returns the unique ID for client certificate as a string
CERT_FLAGS bit0 is set to 1 if the client certificate is present and bit1 is set to 1 if the cCertification authority of the client certificate is not valid
CERT_ISSUER Returns the issuer field of the client certificate
CERT_KEYSIZE Returns the number of bits in Secure Sockets Layer connection key size
CERT_SECRETKEYSIZE Returns the number of bits in server certificate private key
CERT_SERIALNUMBER Returns the serial number field of the client certificate
CERT_SERVER_ISSUER Returns the issuer field of the server certificate
CERT_SERVER_SUBJECT Returns the subject field of the server certificate
CERT_SUBJECT Returns the subject field of the client certificate
CONTENT_LENGTH Returns the length of the content as sent by the client
CONTENT_TYPE Returns the data type of the content
GATEWAY_INTERFACE Returns the revision of the CGI specification used by the server
HTTP<HeaderName> Returns the value stored in the header HeaderName
HTTP_ACCEPT Returns the value of the Accept header
HTTP_ACCEPT_LANGUAGE Returns a string describing the language to use for displaying content
HTTP_COOKIE Returns the cookie string included with the request
HTTP_REFERER Returns a string containing the URL of the page that referred the request to the current page using an <a> tag. If the page is redirected, HTTP_REFERER is empty
HTTP_USER_AGENT Returns a string describing the browser that sent the request
HTTPS Returns ON if the request came in through secure channel or OFF if the request came in through a non-secure channel
HTTPS_KEYSIZE Returns the number of bits in Secure Sockets Layer connection key size
HTTPS_SECRETKEYSIZE Returns the number of bits in server certificate private key
HTTPS_SERVER_ISSUER Returns the issuer field of the server certificate
HTTPS_SERVER_SUBJECT Returns the subject field of the server certificate
INSTANCE_ID The ID for the IIS instance in text format
INSTANCE_META_PATH The meta base path for the instance of IIS that responds to the request
LOCAL_ADDR Returns the server address on which the request came in
LOGON_USER Returns the Windows account that the user is logged into
PATH_INFO Returns extra path information as given by the client
PATH_TRANSLATED A translated version of PATH_INFO that takes the path and performs any necessary virtual-to-physical mapping
QUERY_STRING Returns the query information stored in the string following the question mark (?) in the HTTP request
REMOTE_ADDR Returns the IP address of the remote host making the request
REMOTE_HOST Returns the name of the host making the request
REMOTE_USER Returns an unmapped user-name string sent in by the user
REQUEST_METHOD Returns the method used to make the request
SCRIPT_NAME Returns a virtual path to the script being executed
SERVER_NAME Returns the server's host name, DNS alias, or IP address as it would appear in self-referencing URLs
SERVER_PORT Returns the port number to which the request was sent
SERVER_PORT_SECURE Returns a string that contains 0 or 1. If the request is being handled on the secure port, it will be 1. Otherwise, it will be 0
SERVER_PROTOCOL Returns the name and revision of the request information protocol
SERVER_SOFTWARE Returns the name and version of the server software that answers the request and runs the gateway
URL Returns the base portion of the URL

实例

例子 1

您可以像这样来循环遍历所有的服务器变量:

  1. <%
  2. for each x in Request.ServerVariables
  3. response.write(x & "<br />")
  4. next
  5. %>

例子 2

本例演示了如何查明访问者浏览器的类型、IP 地址等等:

  1. <html>
  2. <body>
  3. <p>
  4. <b>You are browsing this site with:</b>
  5. <%Response.Write(Request.ServerVariables("http_user_agent"))%>
  6. </p>
  7. <p>
  8. <b>Your IP address is:</b>
  9. <%Response.Write(Request.ServerVariables("remote_addr"))%>
  10. </p>
  11. <p>
  12. <b>The DNS lookup of the IP address is:</b>
  13. <%Response.Write(Request.ServerVariables("remote_host"))%>
  14. </p>
  15. <p>
  16. <b>The method used to call the page:</b>
  17. <%Response.Write(Request.ServerVariables("request_method"))%>
  18. </p>
  19. <p>
  20. <b>The server's domain name:</b>
  21. <%Response.Write(Request.ServerVariables("server_name"))%>
  22. </p>
  23. <p>
  24. <b>The server's port:</b>
  25. <%Response.Write(Request.ServerVariables("server_port"))%>
  26. </p>
  27. <p>
  28. <b>The server's software:</b>
  29. <%Response.Write(Request.ServerVariables("server_software"))%>
  30. </p>
  31. </body>
  32. </html>