useraction.java

本系统是新华社内部信息管理系统

package com.nitpro.struts.action;

import java.util.List;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.MappingDispatchAction;

import com.nitpro.dao.DAOFactory;
import com.nitpro.struts.form.UserForm;
import com.nitpro.vo.User;

/**
 * MyEclipse Struts
 * 处理用户类的Action，主要进行的操作有取得用户信息的列表，进行用户的添加、编辑、删除
 * @author 邓锦溏
 * @version 1.0
 * @struts.action path="/user" name="userForm" input="/form/user.jsp"
 *                scope="request" validate="true"
 */
public class UserAction extends MappingDispatchAction {
	/*
	 * Generated Methods
	 */

	/**
	 * Method list
	 * 该方法得到所有用户列表并返回到页面
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward list(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		List users = DAOFactory.getDAOFactory().getUserDAO().findAll();
		request.setAttribute("users", users);
		return mapping.findForward("list");
	}

	/**
	 * Method add
	 * 该方法提供form取得页面的数据插入数据库中，插入成功返回并给出提示
	 * 如果传入的username已存在，返回错误信息到页面
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward add(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		UserForm userForm = (UserForm) form;// TODO Auto-generated method stub

		String username = userForm.getUsername();

		List users = DAOFactory.getDAOFactory().getUserDAO().findByUsername(
				username);
		if (users.isEmpty()) {
			String realname = userForm.getRealname();
			String userpwd = userForm.getUserpwd();
			String usersex = userForm.getUsersex();
			Integer userage = userForm.getUserage();
			String useremail = userForm.getUseremail();

			User user = new User();
			user.setUsername(username);
			user.setRealname(realname);
			user.setUserpwd(userpwd);
			user.setUsersex(usersex);
			user.setUserage(userage);
			user.setUseremail(useremail);

			DAOFactory.getDAOFactory().getUserDAO().save(user);
			request.setAttribute("message", "成功新增用戶");
			return mapping.findForward("list");
		}
		request.setAttribute("errormessage", "该用户名已存在，请选择其他用户名");
		return mapping.findForward("fail");

	}

	/**
	 * Method delete
	 * 该方法提供form取得页面的数据id删除数据库中的数据，删除成功返回并给出提示
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward delete(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		UserForm userForm = (UserForm) form;// TODO Auto-generated method stub
		Integer userid = userForm.getUserid();

		User user = DAOFactory.getDAOFactory().getUserDAO().findById(userid);
		DAOFactory.getDAOFactory().getUserDAO().delete(user);
		request.setAttribute("message", "成功刪除用戶");
		return mapping.findForward("list");
	}

	/**
	 * Method edit
	 * 该方法提供form取得页面的数据id取得数据库中该id的数据，成功返回数据到页面
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward edit(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		UserForm userForm = (UserForm) form;// TODO Auto-generated method stub
		Integer userid = userForm.getUserid();
		User user = DAOFactory.getDAOFactory().getUserDAO().findById(userid);
		request.setAttribute("user", user);
		return mapping.findForward("edit");
	}

	/**
	 * Method save
	 * 该方法提供form取得页面的数据进行数据库中数据的修改，修改成功返回列表并给出提示
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward save(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		UserForm userForm = (UserForm) form;// TODO Auto-generated method stub
		Integer userid = userForm.getUserid();
		String username = userForm.getUsername();
		String realname = userForm.getRealname();
		String userpwd = userForm.getUserpwd();
		String usersex = userForm.getUsersex();
		Integer userage = userForm.getUserage();
		String useremail = userForm.getUseremail();

		User user = new User();
		user.setUserid(userid);
		user.setUsername(username);
		user.setRealname(realname);
		user.setUserpwd(userpwd);
		user.setUsersex(usersex);
		user.setUserage(userage);
		user.setUseremail(useremail);

		DAOFactory.getDAOFactory().getUserDAO().merge(user);
		request.setAttribute("message", "成功更改用戶信息");
		return mapping.findForward("list");
	}

}