usercontroller.java

Struts数据库项目中的一个实例

package com.relationinfo.webapp.action;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.relationinfo.Constants;
import com.relationinfo.model.User;
import com.relationinfo.service.UserManager;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;


/**
 * Simple class to retrieve a list of users from the database.
 *
 * <p>
 * <a href="UserController.java.html"><i>www.relationinfo.com</i></a>
 * </p>
 *
 * @author caoguangxin www.relationinfo.com
 */
public class UserController implements Controller {
    private transient final Log log = LogFactory.getLog(UserController.class);
    private UserManager mgr = null;

    public void setUserManager(UserManager userManager) {
        this.mgr = userManager;
    }

    public ModelAndView handleRequest(HttpServletRequest request,
                                      HttpServletResponse response)
    throws Exception {
        if (log.isDebugEnabled()) {
            log.debug("entering 'handleRequest' method...");
        }

        return new ModelAndView("userList", Constants.USER_LIST,
                                mgr.getUsers(new User()));
    }
}