Ext2.1 struts1.x spring 2.x hibernate 2.x

package mypackage.servlets; import java.io.IOException; import java.io.Writer; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.regex.Pattern; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import mypackage.person.Address; import mypackage.person.Person; import mypackage.person.Phone; import mypackage.util.JsonObjectResponse; import mypackage.util.JsonResponseGeneratorUtil; import flexjson.JSONSerializer; public class PersonCRUDServlet extends HttpServlet { public static int id = 0; public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException { doPost(request, response); } /** * Method that handles all requests to this <code>HttpServlet</code>. */ public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { response.setContentType("text/plain"); // Retrieve the writer from the HttpServletResponse. Writer out = response.getWriter(); String action = request.getParameter("action"); if (action == null) { return; } String returnValue = null; if (action.equals("list")) { returnValue = listPersons(request); } else if (action.equals("create")) { returnValue = createPerson(request); } else if (action.equals("update")) { returnValue = updatePerson(request); } else if (action.equals("loadPerson")) { returnValue = loadPerson(request); } else if (action.equals("delete")) { returnValue = deletePerson(request); } else { returnValue = "Not a valid action: " + action; } System.out.println( "\nThe serialized data from the server is: \n" + returnValue); // Write out the return value.. out.write(returnValue); } /** * Retrieve the data off of the request and delete the person object(s). * In a real application we would delete this data from the database. * @param request * @return a JSON formatted string that lets the user know if * the deletion of the person(s) was successful or not. */ private String deletePerson(HttpServletRequest request) { // Find the person to delete from the users session for the given id. List<Person> persons = (List<Person>) request.getSession().getAttribute("persons"); boolean found = false; if (request.getParameter("id") != null) { int personId = Integer.parseInt( (String) request.getParameter("id").trim()); // Iterate through the list of persons from the users session. // and remove the person to be deleted from the users session. for (Iterator<Person> i = persons.iterator(); i.hasNext(); ) { if (personId == i.next().getId()) { i.remove(); found = true; break; } } } String jsonResponse = null; if (found) { jsonResponse = JsonResponseGeneratorUtil.generateSimpleResponse( true, "Person was deleted successfully."); } else { jsonResponse = JsonResponseGeneratorUtil.generateSimpleResponse( false, "Person did not exist on session to be deleted."); } return jsonResponse; } /** * Retrieve the data off of the request and update a person object. * Take the person object and set it in the users session. In a real * application we would save this data in the database. * @param request * @return a JSON formatted string that lets the user know if * the update of the person was successful or not. */ private String updatePerson(HttpServletRequest request) { Map<String, String> fieldErrors = new HashMap<String, String>(); Person person = new Person(); if (request.getParameter("firstName") != null) { String firstname = (String) request.getParameter("firstName").trim(); person.setFirstName(firstname); } if (request.getParameter("lastName") != null) { String lastname = (String) request.getParameter("lastName").trim(); person.setLastName(lastname); } if (request.getParameter("birthdate") != null) { String birthdate = (String) request.getParameter("birthdate").trim(); person.setBirthdate(birthdate); } Address address = new Address(person.getId()); person.setAddress(address); if (request.getParameter("street") != null) { String street = (String) request.getParameter("street").trim(); person.getAddress().setStreet(street); } if (request.getParameter("city") != null) { String city = (String) request.getParameter("city").trim(); person.getAddress().setCity(city); } if (request.getParameter("state") != null) { String state = (String) request.getParameter("state").trim(); person.getAddress().setState(state); } if (request.getParameter("zip") != null) { String zip = (String) request.getParameter("zip").trim(); person.getAddress().setZip(zip); } if (request.getParameter("phone") != null) { String phone = (String) request.getParameter("phone").trim(); person.setPhone("Home", phone); // Validate the phone field. It must be in the format of xxx-xxx-xxxx. boolean valid = Pattern.matches("\\d{3}-\\d{3}-\\d{4}", phone); if (!valid) { fieldErrors.put("phone", "Phone must be in the format of xxx-xxx-xxxx"); } } // Pause the thread for 5 seconds to see the screen. try { Thread.sleep(5000); } catch (Exception e) {} String response = null; // If there was a error in one of the fields the fieldErrors Map will // not be empty. if (fieldErrors.size() > 0) { response = JsonResponseGeneratorUtil.generateValidationErrorsResponse( false, "Please fix all highlighted errors.", fieldErrors); } else { // Find the person to update from the users session for the given id. List<Person> persons = (List<Person>) request.getSession().getAttribute("persons"); Person personToUpdate = null; if (request.getParameter("id") != null) { int personId = Integer.parseInt( (String) request.getParameter("id").trim()); for (Person p : persons) { if (p.getId() == personId) { personToUpdate = p; } } } // Update the person that exists in the session with the data off of // the form when all validation has passed. personToUpdate.setFirstName(person.getFirstName()); personToUpdate.setLastName(person.getLastName()); personToUpdate.setBirthdate(person.getBirthdate()); personToUpdate.getAddress().setStreet(person.getAddress().getStreet()); personToUpdate.getAddress().setCity(person.getAddress().getCity()); personToUpdate.getAddress().setState(person.getAddress().getState()); personToUpdate.getAddress().setZip(person.getAddress().getZip().getZipcode()); // Remove all the phone objects off of the person in the session. for (Iterator<Phone> i = personToUpdate.getPhoneNumbers().iterator(); i.hasNext(); ) { i.next(); i.remove(); } // Add all the phone objects from the form to the person in the session. for (Phone newPhone : person.getPhoneNumbers()) { personToUpdate.setPhone(newPhone.getName(), newPhone.getNumber()); } response = JsonResponseGeneratorUtil.generateSimpleResponse( true, "Person was updated successfully."); } // If there was an exception that occurred during the update of the person. //response = JsonResponseGeneratorUtil.generateSimpleResponse( // false, "Person was not updated successfully. Please try again."); return response; } /** * Retrieve the <code>Person</code> object off of the users session. * In a real appl