MACROMEDIA COLDFUSION MX 61-CFML, Reference

Page: 185 / 806

cfhttpparam 185
•
A
body type
attribute cannot be used with additional
body type
attributes, or with
XML
,
file
,
or
formField type
attributes.
•
The
XML
and
body type
attributes cannot be used with the
cfhttp
tag TRACE method.
•
The
file type
attribute is only meaningful with the
cfhttp
tag POST and PUT methods.
•
The
formField type
attribute is only meaningful with the
cfhttp
tag POST and GET
methods.
If you send an HTTP request to a ColdFusion page, all HTTP headers, not just those sent using
the CGI type, are available as CGI scope variables, However, any custom variables (such as
"myVar") do not appear in a dump of the CGI scope.
When you send a file using the
type="file"
attribute, the file content is sent in the body of a
multipart/form-data request. If you send the file to a ColdFusion page, the Form scope of the
receiving page contains an entry with the name you specified in the
cfhttpparam
tag
name
attribute as the key. The value of this variable is the path to a temporary file containing the file
that you sent. If you also send Form field data, the location of the filename in the form.fieldnames
key list depends on the position of the
cfhttpparam
tag with the file relative to the
cfhttp
tags
with the form data.
URL-encoding preserves special characters (such as the ampersand) when they are passed to the
server. For more information, see the function
URLEncodedFormat
on page 731 .
Example
<!--- this example consists of two CFML pages.
The first page posts to the second --->
<!--- The first, posting page.
This page posts variables to another page and displays the body
of the response from the second page.
Change the URL and port as necessary for your environment --->
<cfhttp
method="post"
url="http://127.0.0.1/tests/http/cfhttpparamexample.cfm"
port="8500"
throwonerror="Yes">
<cfhttpparam name="form_test" type="FormField" value="This is a form
variable">
<cfhttpparam name="url_test" type="URL" value="This is a URL variable">
<cfhttpparam name="cgi_test" type="CGI" value="This is a CGI variable">
<cfhttpparam name="cookie_test" type="Cookie" value="This is a cookie">
</cfhttp>
<!--- output the results returned by the posted-to page --->
<cfoutput>
#cfhttp.fileContent#
</cfoutput>
<!--- This is cfhttpparamexample.cfm page that receives and processes the Post
request. It’s response body is the generated HTML output. --->
<h3>Output the passed variables</h3>
<cfoutput>
Form variable: #form.form_test#
<br>URL variable: #URL.url_test#
<br>Cookie variable: #Cookie.cookie_test#