loginaction.java

基于JAVA的一个注册系统 最初只是为了公司做演示使用

package registerapp;

import org.apache.struts.action.*;
import javax.servlet.http.*;

/*
* @author ye fei
* @version 1.00, 2003/04/15
* @copyright www.studyjava.com
*/
public class LoginAction extends Action {
  public ActionForward perform(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {
    LoginForm rf = (LoginForm) actionForm;
    String username  = rf.getUsername();
    String password1 = rf.getPassword1();

/**
 * Validate the request parameters specified by the user
 */
	ActionErrors errors = new ActionErrors();
    try {
            /**
             * New UserDirectory object created.
             */
            UserDirectory UserDir=new UserDirectory();
            /**
             * Check the admin.
             * if it's an admin then forward to adminmanager.jsp
             */
            if (UserDir.isAdmin(username,password1))
            return actionMapping.findForward("Admin");
            /**
             * Check the user.
             * if user exist and password is correct
             * then forward to success.html
             */
            if (!UserDir.isValidPassword(username,password1))
            errors.add(ActionErrors.GLOBAL_ERROR,
            new ActionError("error.password.mismatch"));


    } catch (UserDirectoryException e) {
         errors.add(ActionErrors.GLOBAL_ERROR,
         new ActionError("error.password.mismatch"));
  }

  /**
   * Check the errors.
   * if errors is empty then resume and continue.
   * else forward to this jsp again and print the errors
   */
  if (!errors.empty()) {
                  saveErrors(httpServletRequest, errors);
                  return (new ActionForward(actionMapping.getInput()));
              }

              /**
               * Check the user.
               * if user exist and password is correct
               * then forward to success.html
               */
         return actionMapping.findForward("success");
}



}