Hi,

I am trying to implement initial Helloworld webservice in Salesforce.

But i got error:

"Web service callout failed: WebService returned a SOAP Fault: INVALID_SESSION_ID: Invalid Session ID found in SessionHeader: Illegal Session faultcode=sf:INVALID_SESSION_ID faultactor="

After that i have tried to write login() method for getting valid session id so i took reference of sample java method

Sample Code—Java

privateboolean login()

{

LoginResult loginResult = null;

SoapBindingStubbinding = null;

try {

// Createbinding object

binding = (SoapBindingStub) new SforceServiceLocator().getSoap(); // login

loginResult =binding.login("username", "password");

    }

catch (Exception ex){

System.out.println("An unexpected errorhas occurred." + ex.getMessage());

return false;

}System.out.println("Login was successful.");

// Resetthe SOAP endpoint to the returned server URL

binding._setProperty(Stub.ENDPOINT_ADDRESS_PROPERTY, loginResult.getServerUrl());

// Createa new session header object // add the session ID returned from thelogin

_SessionHeader sh = new _SessionHeader(); sh.setSessionId(loginResult.getSessionId());

// Set the sessionheader for subsequent call authentication

binding.setHeader(new SforceServiceLocator().getServiceName().getNamespaceURI(),

"SessionHeader",sh);

//get user info

try {

GetUserInfoResultuserInfo = binding.getUserInfo(); }

catch (Exception ex) {

System.out.println("Anunexpected error has occurred." + ex.getMessage()); returnfalse;

}return true;

}

But when i tried to implement this same code in Apex i got many error bcoz it is in java .

I just want to know hoe can we write login method in Apex so tat could get valid session id to implement my webservice.

Regards

Manoj