logonform.java

MVC构架

package addressbook.forms;

import addressbook.model.*;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;


public final class LogonForm
    extends ActionForm {
  private User user=new User();

  public void setUser(User user)
  {
    this.user=user;
  }

  public User getUser()
  {
    return this.user;
  }

  public String getUserName() {
    return this.user.getUserName();
  }

  public void setUserName(String userName) {
    this.user.setUserName(userName);
  }

  public String getPassword() {
   return user.getPassword();
  }

  public void setPassword(String password) {
    user.setPassword(password);
  }

  public void reset(ActionMapping mapping, HttpServletRequest request) {
    this.user=new User();
  }

  public ActionErrors validate(ActionMapping mapping,
                               HttpServletRequest request) {

    ActionErrors errors = new ActionErrors();
    if ( (this.getUserName() == null) || (this.getUserName().length() < 1))
      errors.add("userName", new ActionMessage("error.userName.required"));
    if ( (this.getPassword() == null) || (this.getPassword().length() < 1))
      errors.add("password", new ActionMessage("error.password.required"));

    return errors;
  }
}