easyui高级控件（二）

程序员文章站 2024-02-03 22:01:10

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easyui高级控件

1、思路：

1、菜单不同的原因在于，利用不同menuid进行查询，原本默认查询的是所有菜单，是通过-1去查的；
2、menuid由来：是登录用户id查询中间表数据所得来的

2、实现的功能

1、根据用户登录的权限
2、显示用户权限功能

3、权限树

1、一星权限设计（用户权限多对一）
1.1执行数据库脚本
1.2建立实体类
1.3创建dao
1.4Web层创建
1.5更改展示的树形菜单

4、代码实现

1、MenuDao

package com.DZY.dao;

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

import com.DZY.entity.TreeNode;
import com.DZY.util.JsonBaseDao;
import com.DZY.util.JsonUtils;
import com.DZY.util.PageBean;
import com.DZY.util.StringUtils;

public class MenuDao extends JsonBaseDao {

	/**
	 * 给前台返回tree_data1.json的字符串
	 * @param paMap   从前台jsp传递过来的参数集合
	 * @param pageBean
	 * @return
	 * @throws SQLException 
	 * @throws IllegalAccessException 
	 * @throws InstantiationException 
	 */
	
	public List<TreeNode> listTreeNode(Map<String, String[]> paMap,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException{
		List<Map<String, Object>> listMap = this.listMapAuth(paMap, pageBean);
		List<TreeNode> listTreeNode = new ArrayList<>();
		this.listMapToListTreeNode(listMap, listTreeNode);
		
		return listTreeNode;
	}
	
	/**
	 * [{'menuId':001,'menuName':'学生管理'},{{'menuId':001,'menuName':'后勤管理'}}]
	 * @param paMap
	 * @param pageBean
	 * @return
	 * @throws InstantiationException
	 * @throws IllegalAccessException
	 * @throws SQLException
	 */
	public List<Map<String, Object>> listMapAuth(Map<String, String[]> paMap,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException{
		String sql = "select * from t_easyui_menu where true";
		String menuId = JsonUtils.getParamVal(paMap, "Menuid");
		if(StringUtils.isNotBlank(menuId)) {
			sql += " and Menuid in("+menuId+")";
		}else {
			sql += " and Menuid=000";
		}
//		这里面存放的是数据库中的菜单信息
		List<Map<String, Object>> listMap = super.executeQuery(sql, pageBean);
		return listMap;
	}
	
	
	/**
	 * [{'menuId':001,'menuName':'学生管理'},{{'menuId':001,'menuName':'后勤管理'}}]
	 * @param paMap
	 * @param pageBean
	 * @return
	 * @throws InstantiationException
	 * @throws IllegalAccessException
	 * @throws SQLException
	 */
	public List<Map<String, Object>> listMap(Map<String, String[]> paMap,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException{
		String sql = "select * from t_easyui_menu where true";
		String menuId = JsonUtils.getParamVal(paMap, "Menuid");
		if(StringUtils.isNotBlank(menuId)) {
			sql += " and parentid="+menuId;
		}else {
			sql += " and parentid=-1";
		}
//		这里面存放的是数据库中的菜单信息
		List<Map<String, Object>> listMap = super.executeQuery(sql, pageBean);
		return listMap;
	}
	
	/**
	 * {'menuId':001,'menuName':'学生管理'}
	 * --->
	 * {id:....,text:....}
	 * @param map
	 * @param treeNode
	 * @throws SQLException 
	 * @throws IllegalAccessException 
	 * @throws InstantiationException 
	 */
	private void mapToTreeNode(Map<String, Object> map, TreeNode treeNode) throws InstantiationException, IllegalAccessException, SQLException {
		treeNode.setId(map.get("Menuid")+"");
		treeNode.setText(map.get("Menuname")+"");
		treeNode.setAttributes(map);
//		将子节点添加到父节点当中，建立数据之间的父子关系
//		treeNode.setChildren(children);
		Map<String, String[]> childrenMap = new HashMap<>();
		childrenMap.put("Menuid", new String[] {treeNode.getId()});
		List<Map<String, Object>> listMap = this.listMap(childrenMap, null);
		List<TreeNode> listTreeNode = new ArrayList<>();
		this.listMapToListTreeNode(listMap, listTreeNode);
	    treeNode.setChildren(listTreeNode);
	}
	/**
	 * [{'menuId':001,'menuName':'学生管理'},{{'menuId':001,'menuName':'后勤管理'}}]
	 * -->
	 * tree_data1.json
	 * @param listMap
	 * @param listTreeNode
	 * @throws SQLException 
	 * @throws IllegalAccessException 
	 * @throws InstantiationException 
	 */
   private void listMapToListTreeNode(List<Map<String, Object>> listMap, List<TreeNode> listTreeNode) throws InstantiationException, IllegalAccessException, SQLException {
		TreeNode treeNode = null;
		for (Map<String, Object> map : listMap) {
			treeNode = new TreeNode();
			mapToTreeNode(map, treeNode);
			listTreeNode.add(treeNode);
		}
	}
}

**2、UserAction **

package com.DZY.web;

import java.util.List;
import java.util.Map;

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

import com.DZY.dao.UserDao;
import com.zking.framework.ActionSupport;

public class UserAction extends ActionSupport {
	/*private UserDao userDao = new UserDao();
	 
	public String login(HttpServletRequest req,HttpServletResponse resp) {
		String code = "index";//默认跳转首页
		//登录：
		try {
			List<Map<String, Object>> list = this.userDao.list(req.getParameterMap(), null);
			//1.用户存在
			if(list != null && list.size() == 1) {
				List<Map<String, Object>> menuList = this.userDao.getMenusByUser(req.getParameterMap(), null);
				//查到之后 用拼接的写法将menuId拼接传递出去
				StringBuilder sb =new StringBuilder();
				for (Map<String, Object> map : menuList) {
					sb.append(","+map.get("menuId"));
				}
				System.out.println(sb.substring(1));
				//,001,002
				req.setAttribute("menuIds", sb.substring(1));
				
			}else {
				//2.用户不存在
				req.setAttribute("msg", "用户不存在");
				code = "login";//失败跳登录
			}
		}catch (Exception e) {
			// TODO: handle exception
			code = "login";//失败跳登录
		}
		
		return code;
		
	
		
	}*/
private UserDao userDao=new UserDao();
	
	public String login(HttpServletRequest req,HttpServletResponse resp) {
		String code="index";
		//登录
		try {
			List<Map<String, Object>> list=this.userDao.list(req.getParameterMap(), null);
			if(list != null && list.size()==1) {
			//用户存在
				List<Map<String, Object>> menuList=this.userDao.getMenusByUser(req.getParameterMap(), null);
				StringBuilder sb=new StringBuilder();
				for (Map<String, Object> map : menuList) {
					sb.append(","+map.get("menuId"));
				}
				req.setAttribute("menuIds", sb.substring(1));
			}else {
			//用户不存在
				req.setAttribute("msg", "用户不存在");
				code="login";
			}
		} catch (Exception e) {
			e.printStackTrace();
			code="login";
		}
		return code;
	}

}

3、mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
	<action path="/menuAction" type="com.DZY.web.MenuAction">
	</action>
	<action path="/userAction" type="com.DZY.web.UserAction">
		<forward name="index" path="/index.jsp" redirect="false" />
		<forward name="login" path="/login.jsp" redirect="false" ></forward>
	</action>
</config>

4、web.xml

  <filter>
  	<filter-name>encodingFiter</filter-name>
  	<filter-class>com.DZY.util.EncodingFiter</filter-class>
  </filter>
  
  <filter-mapping>
  	<filter-name>encodingFiter</filter-name>
  	<url-pattern>/*</url-pattern>
  </filter-mapping>
  
  
  <servlet>
  	<servlet-name>actionServlet</servlet-name>
  	<servlet-class>com.zking.framework.ActionServlet</servlet-class>
  </servlet>
  <servlet-mapping>
  	<servlet-name>actionServlet</servlet-name>
  	<url-pattern>*.action</url-pattern>
  </servlet-mapping>

5、index.jsp页面

<%@ page language="java" contentType="text/html; charset=utf-8"
	pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css"
	href="${pageContext.request.contextPath }/static/easyui5/themes/default/easyui.css">
<link rel="stylesheet" type="text/css"
	href="${pageContext.request.contextPath }/static/easyui5/themes/icon.css">
<script type="text/javascript"
	src="${pageContext.request.contextPath }/static/easyui5/jquery.min.js"></script>
<script type="text/javascript"
	src="${pageContext.request.contextPath }/static/easyui5/jquery.easyui.min.js"></script>
 <script type="text/javascript"
	src="${pageContext.request.contextPath }/static/js/index.js"></script>
 

<title>Insert title here</title>
</head>
<body class="easyui-layout">
<input type="hidden" id="menuIds" value="${menuIds}">
	<div data-options="region:'north',border:false"
		style="height: 60px; background: #B3DFDA; padding: 10px">north
		region</div>
	<div data-options="region:'west',split:true,title:'West'"
		style="width: 150px; padding: 10px;">
		菜单管理框架
		<ul id="tt"></ul>  
		</div>
		
	<div
		data-options="region:'east',split:true,collapsed:true,title:'East'"
		style="width: 100px; padding: 10px;">east region</div>
	<div data-options="region:'south',border:false"
		style="height: 50px; background: #A9FACD; padding: 10px;">south
		region</div>
	<div data-options="region:'center',title:'Center'">
	<div id="menuTab" class="easyui-tabs" style="width:500px;height:250px;">   
            <div title="首页" style="padding:20px;display:none;">欢迎界面</div> </div>
</body>
</html>

6、login.jsp页面

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>登陆界面</title>
</head>
<body>
<form action="${pageContext.request.contextPath }/userAction.action?methodName=login"  method="post">
uid：<input  type="text"  name="uid"><br>
upwd:<input  type="text"  name="upwd"><br>
<input  type="submit" value="登陆">
</form>
</body>
</html>

实现两种不同权限：
第一种权限：
easyui高级控件（二）

第二种权限

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