I am devloping one application which retrieves all contacts in Gmail for a
given UserId. In the retrieved page I have given on delete button. On
clicking this button it should delete the selected Contact from the list. So
i need to retrieve the contactid for all existing contacts. Moreover i have
to pass the contactid in the DeleteContact Servlet dynamically rather than
passing statically as i have done below in the code. So i wanted to know
1. How to retrieve all the contactid of existing contact?
2. How to pass the id in the DeleteUrl dynamically?
*Here is my DeleteContact Servlet :-*
import java.io.IOException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.google.gdata.client.contacts.ContactsService;
import com.google.gdata.client.http.GoogleGDataRequest;
import com.google.gdata.data.contacts.ContactEntry;
import com.google.gdata.util.PreconditionFailedException;
@SuppressWarnings("serial")
public class DeleteContact extends HttpServlet {
public static Logger logger = Logger.getLogger("Contact servlet");
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
doGet(req, resp);
System.out.println("1.code running");
ContactsService myService = new ContactsService("ContactService");
ContactEntry contact = null;
logger.log(Level.INFO, "Before Try block");
try {
System.out.println("2.code running");
System.setProperty(GoogleGDataRequest.DISABLE_COOKIE_HANDLER_PROPERTY,
"true");
logger.log(Level.INFO, "Before setting the contactId Url");
URL deleteUrl = new URL(
"http://www.google.com/m8/feeds/contacts/userId/base/22338a340ec88d12";);
myService.setUserCredentials("UserId", "Password");
contact = myService.getEntry(deleteUrl, ContactEntry.class);
contact.delete();
logger.log(Level.INFO, "After deleting the contact");
System.out.println("3.code running");
/*RequestDispatcher dispatcher = req.getRequestDispatcher("delete.jsp");
if (dispatcher != null)
dispatcher.forward(req, resp);*/
} catch (PreconditionFailedException e) {
e.printStackTrace();
}
catch (com.google.gdata.util.ServiceException e) {
e.printStackTrace();
}
}
}
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