userloginaction.java

myeclipse下mysql-struts-hibernate-tomcat一个BBS 应用

package j2eebbs.user.action;

import j2eebbs.Constants;
import j2eebbs.DB;
import j2eebbs.Forum;
import j2eebbs.User;
import j2eebbs.user.form.UserLoginForm;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sql.DataSource;

import org.apache.struts.action.Action;
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.action.ActionMessages;

public final class UserLoginAction extends Action {
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {

		UserLoginForm userLoginForm = (UserLoginForm) form;
		String username = userLoginForm.getUsername();
		String password = userLoginForm.getPassword();

		ServletContext context = servlet.getServletContext();
		DataSource dataSource = (DataSource) context.getAttribute("bbsDB");
		DB db = new DB(dataSource);

		HttpSession session = request.getSession();
		session.setMaxInactiveInterval(365 * 24 * 3600);

		ActionMessages errors = new ActionMessages();

		String pageForward;

		if ((!username.equals("guest"))
				&& (!User.checkUser(db, username, password))) {
			errors
					.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
							"error.login.failed"));
			if (!errors.isEmpty()) {
				saveErrors(request, errors);
			}
			pageForward = "ToErrorPage";
		} else {
			session.setAttribute(Constants.FORUM_LIST_KEY, Forum.search(db));
			session.setAttribute(Constants.USERNAME_KEY, username);
			pageForward = "UserLoginSucceed";
		}

		db.close();
		return (mapping.findForward(pageForward));
	}

}