
232
Chapter 11: Building and Using ColdFusion Components
2
Create a corpQuery.cfc, specifying
access="remote"
for each
cffunction
tag, as the
following example shows:
<cfcomponent>
<cffunction name="getEmp"
access="remote"
>
<cfargument name="lastName" required="true">
<cfquery name="empQuery" datasource="ExampleApps" dbtype="ODBC">
SELECT LASTNAME, FIRSTNAME, EMAIL
FROM
tblEmployees
WHERE LASTNAME LIKE '#arguments.lastName#'
</cfquery>
<cfoutput>Results filtered by #arguments.lastName#:</cfoutput><br>
<cfdump var=#empQuery#>
</cffunction>
</cfcomponent>
3
Open a web browser and enter the following URL:
http://localhost/corpFind.cfm
ColdFusion displays the search form. Depending on what you enter, after you click the Submit
Query button, the web browser displays the results.
Accessing CFCs from outside ColdFusion and basic HTML
Macromedia Flash applications that use Flash Remoting MX can easily take advantage of
ColdFusion components for business logic. Similarly, you can export CFCs so that any web
application can access CFC methods as web services.
Using Flash Remoting MX
Flash applications that use Flash Remoting MX can access CFC methods by using the CFC path
as the service name in a NetServices
gatewayConnection.getServices
method. You then call
the CFC methods by appending the method name to the service name as the following example
shows:
gatewayConnection = NetServices.createGatewayConnection();
myServiceObject = gatewayConnection.getService("myService", this);
myServiceOjbect.myFunction( { dept: Sales, name: BobZ });
Note:
In ActionScript, you put multiple parameters in curly braces ( { } ) and separate parameter
names and values with colons (:).
For more information on creating CFCs for Flash Remoting MX, see
Chapter 29, “Using the
Flash Remoting Service,” on page 641
.
Invoking components as web services
Any web application, whether it is a ColdFusion application, a Java application, JSP page, or a
.Net application, can access well-formed ColdFusion components as web services by referencing
the WSDL file that ColdFusion automatically generates.
To see a component’s WSDL definition, specify the component web address in a URL, followed
by ?wsdl, for example:
http://localhost:8500/MyComponents/arithCFC.cfc?wsdl
For more information on using CFCs as web services, see
Chapter 32, “Using Web Services,”
on page 707
.
Summary of Contents for 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: ......