June 2001
Intermediate to advanced
320 pages
8h 32m
English
Content preview from .Net Framework EssentialsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Web Services Provider
In this section, we describe how to develop a web service, first from the point of view of service providers and then of the consumers.
Web Services providers implement web services and advertise them so that the clients can discover and make use of the services. Because web services run on top of HTTP, there must be a web server application of some sort on the machine that hosts the web services. This web server application can be Microsoft Internet Information Services (IIS), Apache, or any other program that can understand and process the HTTP protocol. In our examples, we use Microsoft IIS, since that is the only web server currently supported by .NET.
Web Service Provider Example
We will be building a web service called PubsWS to let consumers get information from the sample Pubs database. All data access will be done through ADO.NET, so make sure you’ve read Chapter 5 before attempting the examples.
Creating a web service is a three-step process.
Create a new asmx file for the web service. This must contain the
<%webservice...%>directive, as well as the class that provides the web service implementation. To the Web Service clients, this asmx file is the entry point to your Web Service. You need to put this in a virtual directory that has the executescripts permission turned on.Inherit from the WebService class of the System.Web.Services namespace. This allows the derived class to access all the normal ASP objects exposed in the WebService base class. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.