loginaction.java

struts

package com.wiely.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.actions.DispatchAction;

import com.wiely.service.IUserService;
import com.wiely.struts.form.LoginForm;
import com.wiely.struts.form.RegisterForm;
import com.wiely.vo.User;

public class LoginAction extends DispatchAction {
	/*
	 * use spring to inject the userService and reseacherService
	 */
	protected IUserService userService;

	public IUserService getUserService() {
		return userService;
	}

	public void setUserService(IUserService userService) {
		this.userService = userService;
	}

	/*
	 * return ActionForward failure or success,then login the users
	 */
	@SuppressWarnings( { "deprecation", "unchecked" })
	public ActionForward login(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		// DynaActionForm daf = (DynaActionForm) form;
		// String username = (String) daf.get("username");
		// String password = (String) daf.get("password");
		// String repassword = (String) daf.get("repassword");
		LoginForm lf = (LoginForm) form;
		String username = lf.getUsername();
		String password = lf.getPassword();
		User user = new User();
		user.setPassword(password);
		user.setUsername(username);
		User user1 = userService.login(user);
		if (user1 != null) {
			HttpSession session = request.getSession(true);
			session.setAttribute("user", username);
			return mapping.findForward("success");
		} else {
			return mapping.findForward("failure");
		}

	}

	/*
	 * register the new user and validate the same
	 */

	@SuppressWarnings("deprecation")
	public ActionForward register(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		RegisterForm lf = (RegisterForm) form;
		String name = lf.getName();
		String rpassword = lf.getRpassword();
		User user = new User();
		user.setUsername(name);
		user.setPassword(rpassword);
		int i = userService.findUser(user);
		if (i == 0) {
			userService.register(user);
			return mapping.findForward("register");
		} else {
			ActionErrors errors = new ActionErrors();
			errors.add("sameuser", new ActionMessage("errors.sameuser"));
			saveErrors(request, errors);
			return mapping.findForward("sameuser");
		}
	}
}