root/trunk/myweb/src/mypackage/Register.java

package mypackage;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class Register
 */
public class Register extends HttpServlet {
  private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public Register() {
        super();
        // TODO Auto-generated constructor stub
    }

  /**
   * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
   */
  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    doPost(request,response);
  }

  /**
   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
   */
  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    request.setCharacterEncoding("utf-8");

    HttpSession session=request.getSession();                    //sessionからモデルを取得
    Person thePerson=(Person)session.getAttribute("thePerson");
    if (thePerson==null) {                                       //モデルがまだ無かったら
      thePerson=new Person();                                    //新たに生成
      session.setAttribute("thePerson", thePerson);              //sessionに登録
    }

    String forwardUrl="/Registration.jsp";                       //デフォルトの転送先
    String command=request.getParameter("submit");               //ボタンによって動作を変える

    if (command!=null) {                                         //データを受信したか
      if (command.equals("登録")) {
        this.setProfile(request);
        forwardUrl="/Confirmation.jsp";
      }
      else if (command.equals("住所を検索")) {
        this.setProfile(request);
        thePerson.zipSearch();
      }
      else if (command.equals("完了")) {
        thePerson.execute();
        session.invalidate();
        forwardUrl="/Thanks.jsp";
      }
    }
    getServletContext().getRequestDispatcher(forwardUrl).forward(request,response);
  }

  private void setProfile(HttpServletRequest request) {
    Person thePerson=(Person)request.getSession().getAttribute("thePerson");
    thePerson.setLastName(request.getParameter("lastName"));
    thePerson.setFirstName(request.getParameter("firstName"));
    thePerson.setBirthday(Integer.parseInt(request.getParameter("year")),
    Integer.parseInt(request.getParameter("month")),
    Integer.parseInt(request.getParameter("date")));
    thePerson.setZip(request.getParameter("zip"));
    thePerson.setAddress(request.getParameter("address"));
  }
}