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Chapter 30: Using Server-Side ActionScript
For example, when you build an HTML form using the
Post
method, you specify the name of
the page to which form data is passed. You use the
Post
method in the
CF.http
function in a
similar way. However, with the
CF.http
function, the page that receives the Post does not display
anything. See the following example:
function postWithParams()
{
// Set up the array of Post parameters. These are just like cfhttpparam tags.
// This example passes formfield data to a specified URL.
params = new Array();
params[1] = {name:"Formfield1", type:"FormField", value:"George"};
params[2] = [name:"Formfield2", type:"FormField", value:"Brown"};
url = "http://localhost:8500/";
// Invoke CF.http with the method, url, and params
result = CF.http("post", url, params);
return result.get("Filecontent");
}
Using the CF.http Get method
You use the
Get
method to retrieve files, including text and binary files, from a specified server.
You reference properties of the object returned by the
CF.http
function to access things like file
content, header information, MIME type, and so on.
The following example uses the
CF.http
function to show a common approach to retrieving data
from the web:
// Returns content of URL defined in url variable
// This example uses positional argument style
function get()
{
url = "http://www.macromedia.com/software/coldfusion/";
//Invoke with just the url argument. Get is the default.
result = CF.http(url);
return result.get("Filecontent");
}
For more information about
CF.http
function properties, see
CF.http
in
CFML Reference
.
Summary of Contents for COLDFUSION MX 61-DEVELOPING COLDFUSION MX
Page 1: ...Developing ColdFusion MX Applications...
Page 22: ...22 Contents...
Page 38: ......
Page 52: ...52 Chapter 2 Elements of CFML...
Page 162: ......
Page 218: ...218 Chapter 10 Writing and Calling User Defined Functions...
Page 250: ...250 Chapter 11 Building and Using ColdFusion Components...
Page 264: ...264 Chapter 12 Building Custom CFXAPI Tags...
Page 266: ......
Page 314: ...314 Chapter 14 Handling Errors...
Page 344: ...344 Chapter 15 Using Persistent Data and Locking...
Page 349: ...About user security 349...
Page 357: ...Security scenarios 357...
Page 370: ...370 Chapter 16 Securing Applications...
Page 388: ...388 Chapter 17 Developing Globalized Applications...
Page 408: ...408 Chapter 18 Debugging and Troubleshooting Applications...
Page 410: ......
Page 426: ...426 Chapter 19 Introduction to Databases and SQL...
Page 476: ...476 Chapter 22 Using Query of Queries...
Page 534: ...534 Chapter 24 Building a Search Interface...
Page 556: ...556 Chapter 25 Using Verity Search Expressions...
Page 558: ......
Page 582: ...582 Chapter 26 Retrieving and Formatting Data...
Page 668: ......
Page 734: ...734 Chapter 32 Using Web Services...
Page 760: ...760 Chapter 33 Integrating J2EE and Java Elements in CFML Applications...
Page 786: ...786 Chapter 34 Integrating COM and CORBA Objects in CFML Applications...
Page 788: ......