membercontroller.java

spring2.0技术手册随书事例,结合例子学习起来更轻松

package onlyfun.caterpillar.web;

import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import onlyfun.caterpillar.model.IBookmarkDAO;
import onlyfun.caterpillar.model.IUserDAO;
import onlyfun.caterpillar.model.User;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.
                  multiaction.MultiActionController;
import org.springframework.web.servlet.view.RedirectView;

public class MemberController extends MultiActionController {
    private IBookmarkDAO bookmarkDAO;
    private IUserDAO userDAO;
    private String memberPage;
    private String addBmPage;
    private String passwdPage;
    private String redirectPage;
    
    //显示个人书签
    public ModelAndView displayUrl(HttpServletRequest req, 
                                HttpServletResponse res) {
        String username = 
          (String) req.getSession().getAttribute("valid_user");
        
        if(username != null) {
            //根据使用者名称查找书签
            List urls = 
               getBookmarkDAO().findUserUrl(username);
            return new ModelAndView(
                    this.getMemberPage(), "urls", urls);     
        }
        else {
            return new ModelAndView(
                    new RedirectView(getRedirectPage()));
        }
    }
    
    //加入新的书签
    public ModelAndView addUrl(HttpServletRequest req, 
                             HttpServletResponse res) {
        String username = 
            (String) req.getSession().getAttribute("valid_user");
        
        if(username != null) {
            if(req.getParameter("new_url") != null) {
                String url = (String) req.getParameter("new_url");
                //加入新的书签网址