如何用.NET获取BO的token

using BusinessObjects.ReportEngine;
using CrystalDecisions.Enterprise;

 

public string GetToken()
    {
        String cms = "ws03r2entbase";
        String username = "administrator";
        String password = "";
        String auth = "Enterprise";
        String reportName = "Accessibility";
        String token = "";

        CrystalDecisions.Enterprise.Identity identity = new CrystalDecisions.Enterprise.Identity();
        bool Success = false;
        Success = identity.Logon(username, password, cms, auth);
        if (Success)
        {
            token = identity.GetToken();
        }
        return token;
    }

通过该方法可以获取到BO的token