Adobe COLDFUSION 9 Manual page 1105

Developing applications

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DEVELOPING COLDFUSION 9 APPLICATIONS

Using Web Elements and External Objects

You can also use an attribute collection to pass parameters. An attribute collections is a structure where each structure

key corresponds to a parameter name and each structure value is the parameter value passed for the corresponding

key. The following example shows an invocation of a web service using an attribute collection:

stArgs = structNew();

stArgs.zipcode = "55987";

webservice="http://www.xmethods.net/sd/2001/TemperatureService.wsdl"

method="getTemp"

argumentcollection="#stArgs#"

returnvariable="aTemp">

<cfoutput>The temperature at ZIP code 55987 is #aTemp#</cfoutput>

In this example, you create the structure in a CFScript block, but you can use any ColdFusion method to create the

Using CFScript to consume a web service

The following example uses CFScript to consume a web service. In CFScript, you use the

connect to the web service. After connecting, you can make requests to the service. For

CFML Reference.

After creating the web service object, you can call operations of the web service using dot notation, in the following form:

webServiceName.operationName(inputVal1, inputVal2, ... );

You can handle return values from web services by writing them to a variable, as the following example shows:

resultVar = webServiceName.operationName(inputVal1, inputVal2, ... );

Or, you can pass the return values directly to a function, such as the

writeoutput(webServiceName.operationName(inputVal1, inputVal2, ...) );

Access a web service from CFScript

Create a ColdFusion page with the following content:

ws = CreateObject("webservice",

"http://www.xmethods.net/sd/2001/TemperatureService.wsdl");

xlatstring = ws.getTemp("55987");

writeoutput(xlatstring);

Save the page as wscfscript.cfm in your web root directory.

View the page in your browser.

You can also use named parameters to pass information to a web service. The following example performs the same

operation as the preceding code, except that it uses named parameters to make the web service request:

Last updated 8/5/2010

CreateObject

syntax, see the

CreateObject

function, as the following example