CGI Variables and their Respective ColdFusion/Java Servlet Alternative Methods
Problem
Are you a ColdFusion developer? Have you ever wanted to get away from using CGI variables such as CGI.SCRIPT_NAME but didn't quite know what else to use?
Solution
Then you might find the following list of CGI variables and their respective ColdFusion/Java Servlet Alternative methods to be helpful because I couldn't find much (if any) documentation on this.
Detailed explanation
| CGI Variable | ColdFusion / Java Servlet Alternative Method |
|---|---|
| CGI.AUTH_TYPE | getPageContext().getRequest().getAuthType() |
| CGI.CONTENT_LENGTH | getPageContext().getRequest().getContentLength() |
| CGI.CONTEXT_PATH | getPageContext().getRequest().getContextPath() |
| CGI.CONTENT_TYPE | getPageContext().getRequest().getContentType() |
| CGI.PATH_INFO | getPageContext().getRequest().getPathInfo() |
| CGI.PATH_TRANSLATED | getPageContext().getRequest().getPathTranslated() |
| CGI.QUERY_STRING | getPageContext().getRequest().getQueryString() |
| CGI.REMOTE_ADDR | getPageContext().getRequest().getRemoteAddr() |
| CGI.REMOTE_HOST | getPageContext().getRequest().getRemoteHost() |
| CGI.REMOTE_USER | getPageContext().getRequest().getRemoteUser() |
| CGI.REQUEST_METHOD | getPageContext().getRequest().getMethod() |
| CGI.SCRIPT_NAME | getPageContext().getRequest().getServletPath() |
| CGI.SERVER_NAME | getPageContext().getRequest().getServerName() |
| CGI.SERVER_PORT | getPageContext().getRequest().getServerPort() |
| CGI.SERVER_PORT_SECURE | getPageContext().getRequest().isSecure() |
| CGI.SERVER_PROTOCOL | getPageContext().getRequest().getProtocol() |
| CGI.SERVER_SOFTWARE | getPageContext().getRequest().getHeader("Server-Software") |
| CGI.HTTP_ACCEPT | getPageContext().getRequest().getHeader("Accept") |
| CGI.HTTP_ACCEPT_CHARSET | getPageContext().getRequest().getHeader("Accept-Charset") |
| CGI.HTTP_ACCEPT_ENCODING | getPageContext().getRequest().getHeader("Accept-Encoding") |
| CGI.HTTP_ACCEPT_LANGUAGE | getPageContext().getRequest().getHeader("Accept-Language") |
| CGI.HTTP_CONNECTION | getPageContext().getRequest().getHeader("Connection") |
| CGI.HTTP_COOKIE | getPageContext().getRequest().getHeader("Cookie") |
| CGI.HTTP_HOST | getPageContext().getRequest().getHeader("Host") |
| CGI.HTTP_REFERER | getPageContext().getRequest().getHeader("Referer") |
| CGI.HTTP_USER_AGENT | getPageContext().getRequest().getHeader("User-Agent") |
| Other Useful Java Servlets | |
| Reconstructs the URL the client used to make the request. The returned URL contains a protocol, server name, port number, and server path, but it does not include query string parameters. | getPageContext().getRequest().getRequestURL() |
| The URL string corresponding to the current client request. The string returned does not include the server name or query arguments. | getPageContext().getRequest().getRequestURI() |
| Returns the name of the scheme used to make this request (http, https, or ftp) | getPageContext().getRequest().getScheme() |
For more information on the Java HttpServletRequest: http://java.sun.com/products/servlet/2.2/javadoc/javax/servlet/http/HttpServletRequest.html
For more informaiton on HTTP Header Field Definitions, see: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
To view the original article on my blog, please visit: http://www.stephenwithington.com/blog/index.cfm/2008/8/26/CGI-Variables-and-Their-Respective-ColdFusionJava-Servlet-Alternative-Methods
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