loginaction.java

spring struts hibernate 集成开发的web应用

/*
 * last modified:2006 2 17
 */
package com.sc.struts.action.login;

import org.apache.struts.action.*;

import javax.servlet.http.*;

import com.sc.dao.UserDAO;
import com.sc.util.DigestUtil;
import com.sc.struts.form.login.*;
/**
 * <title>处理登录</title>
 * @author cnsdl
 * @since jdk1.4, struts 1.2
 * @审核修改 lyj
 * @version 1.0
 *
 */

public class LoginAction extends Action {
	private static final String SUCCESS = "success";

	private static final String FAILURE = "failure";

	private UserDAO userDAO;

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		ActionErrors errors = new ActionErrors();
		LoginForm loginForm = (LoginForm) form;
		mapping.getInput();

		if (userDAO.isValidUser(loginForm.getUsername(), DigestUtil
				.getDigestOfMD5(loginForm.getPassword()))) {
			
			return mapping.findForward(SUCCESS);

		} else if (userDAO.isUsedUsername(loginForm.getUsername())) {

			errors.add("password", new ActionMessage("no.db.password"));
			//saveMessages(request,errors);
			saveErrors(request,errors);
			return mapping.findForward(FAILURE);
			
		} else {
			
			errors.add("username", new ActionMessage("no.db.username"));
			//saveMessages(request,errors);
			saveErrors(request,errors);
			return mapping.findForward(FAILURE);
		}
	}

	public UserDAO getUserDAO() {
		return userDAO;
	}

	public void setUserDAO(UserDAO userDAO) {
		this.userDAO = userDAO;
	}

}