1.
Web service - Wikipedia, the free encyclopedia
The W3C Web service definition encompasses many different systems, but in common ... as the WS-I, mandate both SOAP and WSDL in their definition of a Web service. ... http://en.wikipedia.org/wiki/Web_services
2.
Web Services and Other Distributed Technologies
MSDN Magazine: BizTalk Server 2006 Web Services ... Web Services and the Microsoft Platform. Deploy Distributed Business Processes With Windows Workflow and ... http://msdn.microsoft.com/en-us/webservices/default.aspx
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web services?
Hey can any one tell me what
all languages are included in
web service like . php,
vbscript what other languages
are included ??
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A Web service produces XML;
that's all. Web services just
mean that you are going to
feed out some XML, and that
you provide documentation to
other persons on what that XML
will contain.
You can use any language you
like to create or consume a
Web service.
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web services time out (only in debug mode)?
This problem is happening for
all the programmers that are
on the “local” network and
it’s happening for both
Visual Studio 2003 and 2005
users.
There are web services that
are hosted on the “local”
intranet.
If the user is in Visual
Studio and the user is
Debugging, any web service the
program is trying to access
gives a time out error.
Now if you run the application
in release mode (Ctrl + F5),
(or its .EXE file) it will
work just fine.
Now if you have the web
service hosted on the local PC
it works just fine.
If you hit a web service
hosted on the net (Google
search for example) it works
just fine.
It’s just when the
“local” intranet web
services are called.
Here is what the trick was.
Add the following to your
machine.config:
<system.diagnostics>
<switches>
<add
name="Remote.Disable"
; value="1"/>
</switches>
</system.diagnostics>
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You're probably firewalling
the port that Visual Studio
uses to run requests when in
debugging mode. It calls on
port 1433 or the like, not
port 80.
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Describe a Web services application.?
Describe a Web services
application for monitoring the
clarity of water of lakes in
Minnesota. The Department of
Natural Resources (DNR) has
placed a wireless sensor under
the water in the middle of
each lake that measures the
clarity every minute and
reports a single number
indicating water clarity. The
sensors have wireless network
connections and each run a Web
server that reports
the result as a simple HTML
page. The sensor has limited
power, so you want its Web
server to only be touched once
per minute. Your Web service
runs on a computer on the
shore of each lake. It scrapes
the screen of the sensor Web
site, and presents the results
as a Web service. We want a
main DNR Web site to have a
display of the clarity of
water in all of the lakes in
the state.
Draw an architecture of the
entire system, including the
sensors and the final Web
site. Explain how it works.
What are the practical and
philosophical differences
between
having the sensor run a Web
server and a web service
directly
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Technically a web server is a
web service - of sorts. It
responds to HTTP requests,
typically with HTML documents.
However, the documents do not
adhere to the SOAP standards
implemented by most newer web
services so the only recourse
is to hunt the HTML for
keywords and tags that
indicate where the data you're
scraping for is located.
Since you have some practical
limitations on how frequently
these devices could be called,
my first inclination would be
to develop a centralized
"collection" service
that periodically polled the
various clarity monitoring
devices and stored the data in
a local database (timestamped
from an accurate, central time
source). It would still do the
"scraping" from the
various devices, but would act
as a proxy to minimize the
amount of traffic each device
was required to handle. The
polling interval would be
based upon how frequently you
needed to update the data.
I'm assuming these devices can
be accessed via TCP/IP.
Lacking any drawing tools, the
architecture is fairly simple.
[Polling Server] -- [Clarity
Monitoring Devices]
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[Database Server]
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[Web Service]
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[Clients] or [Web Server]
What would help is if you have
the ability to modify the web
page on the monitoring
devices. If so you could
customize the HTML response to
conform to a standard SOAP
document that could be called
as a remote object from the
polling server (instead of
having to parse the HTML).
Alternatively, you may also be
able to have the web server on
the monitoring devices respond
in an XML format that can be
much more easily parsed by the
Polling Server. I am assuming
this is possible since the web
server on these devices
provides clarity information
on-demand (which typically
requires some sort of
scripting).
If you would like additional
details, please e-mail me at
melancholygiant@yahoo.com.
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...The W3C Web service definition encompasses many different systems, but in common usage the term refers to clients and servers that communicate using XML messages that follow the SOAP standard. Common in both the field and the terminology is the assumption that there is also a machine readable description of the operations supported by the server written in the Web Services Description Language (WSDL). The latter is not a requirement of a SOAP endpoint, but it is a prerequisite for automated client-side code generation in many Java and .NET SOAP frameworks (frameworks such as Spring and Apache CXF being notable exceptions). Some industry organizations, such as the WS-I, mandate both SOAP and WSDL in their definition of a Web service. Read full entry
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