How to handele this Exception

Hi All,
Currently I am working with SAP EP7.0 Web application Server, and now I am implementing model by using Web Services.
I imported the Web Services model successfully but when i execute this i got Exception like:
Service call exception; nested exception is: com.sap.engine.services.webservices.jaxrpc.exceptions.InvalidResponseCodeException: Invalid Response Code: (401) Unauthorized. The requested URL was:"http://suresh:50100/EmpMaintenanceWS/Config1?style=document".
Note: EmpMaintenance is my Web Service.
I have the table in Database(Employee Maintenance Table), I got this exception when i want to save these details in Database. I got the values in UIElements of table but I didn't got this in Databsae.
Could anybody help me to resolve this bug please!.

Hi Suresh,
As Manoj rightly said, please check the Web Service first through navigator.
The error that you have mentioned, comes when the Web Service is a Secure Web Service, ie authorization is required to access the functionality of the Web Service. This can be verified, by access the Web Service thru Navigator.
If, the Web Service is Secure, then you can use the following piece of code, to set the Username and Password.
wdContext.node<Model_node_name>().current<Model_node_name>Element().modelObject()._setUser("<Username>");
wdContext.node<Model_node_name>().current<Model_node_name>Element().modelObject().._setPassword("<Password>");
Hope it Helps.
Regards,
Alka.

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I want to make you more clear about the problem.
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