NET services are document-oriented and useliteral encoding. It indicatesthat our class is a SOAP service that uses section 5encoded payloads andthe SOAP RPC style. There isalso a directive at the top of the class. This tells theruntime that the marked methods are accessible via Web service interfaces fromoutside and should be included in a WSDL description of the service. In this case, we're marking eachmethod that we would like to publish as a. But the text in the square brackets( ) is different these directives tell the runtime anymetainformation that we need to convey. NET using System.Collections using using namespace ShipIt (This example is nota real simulation of the situationit has been vastly simplified to let usfocus more on the Web service infrastructure and less on the applicationlogic.) Listing 1: C# Package Tracking Service in. Second, itreturns a tracking report for an existing tracking number. First, it generates new trackingnumbers, which tie to instances of a PackageInfo class. Let's take a look at a simple service implemented as an ASMX file seeListing 1.
Of course, thisdoesn't allow for the kind of rich data mapping you can do with XML, but itis handy for services that only deal in simple types. This meansthat you can call an ASMX-based Web service with just a browser, passingarguments as query string parameters or form fields. NET languages for Web services(right now that's C#, Visual Basic, and Jscript).Īnother difference is that ASMX files automatically support an HTTP GET and POST binding as well as access via SOAP.
#Shipit trackit code#
There are some differences, though.įor one thing, all ASMX files require a WebService directiveat the beginning of the file, which tells the infrastructure what language thesource code is expressed in and the name of the class that implements the actualservice. As you'll see, ASMX files are a lot like JWSfilesthey allow you to drop source code into a regular old text file andhave the ASP.NET framework automatically compile and execute the code for you ondemand. We'll simulate the package-tracking application in. NET-based system to provide this feature toSkatesTown. We'll walk you through a simple version ofwhat ShipIt might do on its. All the shipping has happened behind the scenes, but somecustomers have (quite reasonably) been asking for the ability to get trackingnumbers for their shipments. For some months now, SkatesTown has been using ShipIt, Inc., to sendits packages.
Let's bring our attention back to SkatesTown for a minute for thisexample.
#Shipit trackit plus#
NET server sidecomponents plus all prerequisites.)
#Shipit trackit install#
If you want totry the example, please make sure that you install the. (For you Windows 98folks out there, sorrythis section won't work for you.NET'sserver-side components are strictly for Windows 2000 or later. What about exposingservices? Luckily, with ASP.NET, it's even easier. NET Web Services: Package Tracking for SkatesTown Building Web Services with Java: Making Sense of XML, SOAP, WSDL and UDDI
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