Web Service

Question

I am working on a Windows XP Home Edition computer. The web service is on the same comuter as the consumer application. I am using Visual Studion Web Developer Express edition.

 

When attempting to add the web service without specifiy the port, but only 'localhost', I get the following message:

 

There was an error downloading 'http://localhost/HelloWorldThreeService/WebService.asmx'.
Unable to connect to the remote server
No connection could be made because the target machine actively refused it 127.0.0.1:80
Metadata contains a reference that cannot be resolved: 'http://localhost/HelloWorldThreeService/WebService.asmx'.
Could not connect to http://localhost/HelloWorldThreeService/WebService.asmx. TCP error code 10061: No connection could be made because the target machine actively refused it 127.0.0.1:80.
Unable to connect to the remote server
No connection could be made because the target machine actively refused it 127.0.0.1:80
If the service is defined in the current solution, try building the solution and adding the service reference again.

 working on a Windows XP Home Edition computer. When attempting to add a web service using Visual Web Developer Express edition, I get the following error message:

 

 

Answer 1

Have you checked firewall settings?

Answer 2

Do you have IIS installed in your local machine? Also check if you have unblocked port 80 in your firewall.

 

Answer 3

Port 80 is not blocked. This is a Windows XP Home Edition computer, so IIS is not available.

Answer 4

I am unable to ping 127.0.0.1:80

Answer 5

How are you pinging a specific port?

 

If you don't have IIS running what is listening for requests on port 80?

Answer 6

I see your point. I am able to ping 127.0.0.1

Answer 7

That just means the computer has a TCP stack running.

 

Answer 8

Also windows ping command uses ICMP protocol which according to OSI model is on Network layer protocol. Because of that user cannot specify which ports to ping - since ports are specific to the Transport layer.
Try to use 'netstat' command to see if your server is listening.

HTH
PK

Answer 9

What is the format for using the "netstat" command?

Answer 10

If tou want to determine if your server application is up and running, you can type 'netstat -na'. You should see something like:
Protocl TCP, Local address 0.0.0.0:80, Foreign Port 0.0.0.0:0, state Listening

I still belive that, in your case something could block incoming connections ( like windows firewall - try to desable it ), or just your web service is down.

Hope this helps
PK

Answer 11

"netstat -a -n | FINDSTR LISTENING" if you just want to see listening applications.  If you do having something listening, then it's being blocked by your firewall.  I doubt you have anything listening though.

Answer 12

Do you know of any web link which details use of the "netstat" command?

Answer 13

The program has successfuly executed. I restarted the web service producer and the consumer. On the consumer application, I set the property "Use dynamic ports" to True.  This is the code for the Default.aspx.cs file:

 

using System;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Web.Services;

using ServiceReference1;

 

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

ServiceSoapClient service = new ServiceSoapClient();

Label1.Text = service.HelloWorld();

}

}

 

This code allowed me to consume a web service written in one instance of Visual Web Developer by an application written in another instance of Visual Web Developer.