自定义mvc项目登录注册和树形菜单

Easyui and mvc 项目1_登陆注册权限树形展示

一、登录and注册

导入tomcat和项目所需要的jar包和之前写好的工具类

建立数据库中的User尸体类(用户)

package com.mjx.entity;

public class User {
	
	private long id;
	private String name;
	private String pwd;
	private int type;
	public long getId() {
		return id;
	}
	public void setId(long id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPwd() {
		return pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public int getType() {
		return type;
	}
	public void setType(int type) {
		this.type = type;
	}
	@Override
	public String toString() {
		return "User [id=" + id + ", name=" + name + ", pwd=" + pwd + ", type=" + type + "]";
	}
	
	

}

写登陆and注册的dao方法

package com.mjx.dao;

import java.util.List;

import com.mjx.entity.RolePermission;
import com.mjx.entity.User;
import com.zking.util.BaseDao;
import com.zking.util.PageBean;

public class UserDao extends BaseDao<User> {
	

	// 登陆
	public User login(User user) throws Exception {
		String sql = "select * from t_easyui_user where name='" + user.getName() + "'and pwd='" + user.getPwd() + "'";
		return super.executeQuery(sql, User.class, null).get(0);
	}

	// 注册
	public void add(User user) throws Exception {
		String sql = "insert into t_easyui_user(name,pwd) values(?,?)";
		super.executeUpdate(sql, user, new String[] { "name", "pwd" });

	}


	

}

写UserAction

package com.mjx.web;

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

import com.mjx.dao.UserDao;
import com.mjx.entity.User;

import com.zking.framework.ActionSupport;
import com.zking.framework.ModelDriver;

public class UserAction extends ActionSupport implements ModelDriver<User> {
	private User user = new User();
	private UserDao userDao = new UserDao();

	@Override
	public User getModel() {
		// TODO Auto-generated method stub
		return user;
	}

	// 登录
	public String login(HttpServletRequest req, HttpServletResponse resp) {
		try {
			User u = userDao.login(user);
			if (u == null) {
				return "toLogin";
			}
			req.getSession().setAttribute("cuser", u);
		} catch (Exception e) {
			e.printStackTrace();
			return "toLogin";
		}
		// 只要数据库有这个用户，就跳转到主界面
		return "main";
	}

	// 注册
	public String register(HttpServletRequest req, HttpServletResponse resp) {
		try {
			userDao.add(user);
			req.setAttribute("msg", "用户名或密码错误");
		} catch (Exception e) {
			e.printStackTrace();
			return "toRegister";
		}

		// 如果注册成功，跳转到登录界面
		return "toLogin";
	}
}

修改xml文件，对应跳转的页面

<?xml version="1.0" encoding="UTF-8"?>
<config>
	<action path="/user" type="com.dzl.web.UserAction">
		<forward name="main" path="/bg/mainTemp.jsp" redirect="false" /> <!-- 转发 -->
		<forward name="toLogin" path="/login.jsp" redirect="true" /> <!--重定向 -->
		<forward name="toRegister" path="/register.jsp" redirect="false" />
	</action>
	
	<action path="/Permission" type="com.dzl.web.PermissionAction">
		<forward name="toLogin" path="/login.jsp" redirect="true" /> <!--重定向 -->
	</action>

</config>

及main.js

$(function(){
	$("#bookMenus").tree({
		url:$("#ctx").val()+"/Permission.action?methodName=tree"
	})
})

运行结果：

二、树形菜单的展示

PermissionAction

package com.mjx.web;

import java.util.List;

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

import com.mjx.dao.PermissionDao;
import com.mjx.dao.RolePermissionDao;
import com.mjx.dao.UserDao;
import com.mjx.entity.Permission;
import com.mjx.entity.RolePermission;
import com.mjx.entity.User;
import com.zking.framework.ActionSupport;
import com.zking.framework.ModelDriver;
import com.zking.util.BuildTree;
import com.zking.util.ResponseUtil;
import com.zking.util.TreeVo;

public class PermissionAction extends ActionSupport implements ModelDriver<Permission> {
	private Permission permission = new Permission();
	private PermissionDao permissionDao = new PermissionDao();
	private UserDao userDao = new UserDao();
	private RolePermissionDao rolePermissionDao = new RolePermissionDao();
	public Permission getModel() {
		// TODO Auto-generated method stub
		return permission;
	}

	public String tree(HttpServletRequest req, HttpServletResponse resp) {
		try {
			User cuser = (User) req.getSession().getAttribute("cuser");
			if (cuser == null) {
				return "toLogin";
			}
			int type = cuser.getType();
			List<RolePermission> rolePermissions = rolePermissionDao.findRolePermission(type);
			StringBuffer sb = new StringBuffer();
			for (RolePermission rp : rolePermissions) {
				sb.append(",").append(rp.getPid());
			}
			List<TreeVo<Permission>> treePlus = permissionDao.treePlus(sb.substring(1));
			
//			List<TreeVo<Permission>> tree = permissionDao.tree(null, null);
			ResponseUtil.writeJson(resp, treePlus);
		} catch (Exception e) {
			e.printStackTrace();
			try {	
				ResponseUtil.write(resp, "0");
			} catch (Exception e1) {
				e1.printStackTrace();
			}
		}

		return null;
	}

}

PermissionDao

package com.mjx.dao;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.mjx.entity.Permission;

import com.zking.util.BaseDao;
import com.zking.util.BuildTree;
import com.zking.util.PageBean;
import com.zking.util.TreeVo;

public class PermissionDao extends BaseDao<Permission> {
	/*
	 * 变成easyui的tree控件所识别的json格式 
	 * 1.jackson引入进来
	 * 2.拿到Permission的list集合，先查询数据库
	 * 3.List<Permission>转换成List<TreeVo> 
	 * 4.通过工具类BuildTree将平级数据转换成层级数据
	 * 
	 */

//第二步
	public List<Permission> list(Permission Permission, PageBean pageBean) throws Exception {
		String sql = "select * from t_easyui_Permission where 1=1";
		return super.executeQuery(sql, Permission.class, null);
	}
	
//	第三步
	public List<TreeVo<Permission>> tree(Permission permission, PageBean pageBean) throws Exception {
		List<Permission> listPermission = this.list(permission, pageBean);
		List<TreeVo<Permission>> listVo = new ArrayList<TreeVo<Permission>>();
		for (Permission p : listPermission) {
			System.out.println(p);
			TreeVo<Permission> vo=new TreeVo<>();
			vo.setId(p.getId()+"");
			vo.setText(p.getName());
			vo.setParentId(p.getPid()+"");
			Map<String, Object> map =new HashMap<String, Object>();
			map.put("self", p);
			vo.setAttributes(map);
			listVo.add(vo);
		}
		
		return BuildTree.buildList(listVo,"0");
	}
	
	
	public List<TreeVo<Permission>> treePlus(String ids) throws Exception {
		List<Permission> listPermission = this.listPlus(ids);
		List<TreeVo<Permission>> listVo = new ArrayList<TreeVo<Permission>>();
		for (Permission p : listPermission) {
			System.out.println(p);
			TreeVo<Permission> vo=new TreeVo<>();
			vo.setId(p.getId()+"");
			vo.setText(p.getName());
			vo.setParentId(p.getPid()+"");
			Map<String, Object> map =new HashMap<String, Object>();
			map.put("self", p);
			vo.setAttributes(map);
			listVo.add(vo);
		}
		
		return BuildTree.buildList(listVo,"0");
	}
	
	
	
	public List<Permission> listPlus(String ids) throws Exception {
		String sql = "select * from t_easyui_Permission where id in ("+ids+")";
		return super.executeQuery(sql, Permission.class, null);
	}
	
	/*	目前：
	 * 是查询所有的菜单数据形成属性的层级结构
	 * 1.select * from t_easyui_Permission where 1=1 and id in(商家菜单id/买家菜单id)
	 * 2.买家/商家的菜单id是在角色权限表t_easyui_role_permission中获取,通过user表中的TYPE字段进行查询
	 * 
	 * */
	
//	public static void main(String[] args) {
//		PermissionDao p = new PermissionDao();
//		try {
//			List<TreeVo<Permission>> l = p.tree(null, null);
//			for (TreeVo<Permission> t : l) {
//				System.out.println(t);
//			}
//		} catch (Exception e) {
//			// TODO Auto-generated catch block
//			e.printStackTrace();
//		}
//	}
	
}

RolePermissionDao

package com.mjx.dao;

import java.util.List;

import com.mjx.entity.RolePermission;
import com.zking.util.BaseDao;

public class RolePermissionDao extends BaseDao<RolePermission> {
	
	
//	通过rid查出对应的pid
	public List<RolePermission> findRolePermission(int type) throws Exception {
		String sql = "select * from t_easyui_role_Permission where rid =  "+type;
		return super.executeQuery(sql, RolePermission.class, null);
	}

}

运行结果

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