easyUI权限

Posted 2022-03-02 xcn123

EasyUI权限

结合EasyUI入门，今天来给EasyUI写一个简单的权限

权限的目的：让不同的用户可以操作系统中不同资源

UserDao

• 用户登录或者查询用户分页的公共方法
• 根据当前用户登录的id去查对应的菜单

 1 package com.easyui.dao;
 2  
 3 import java.sql.SQLException;
 4 import java.util.List;
 5 import java.util.Map;
 6  
 7 import com.easyui.util.JsonBaseDao;
 8 import com.easyui.util.JsonUtils;
 9 import com.easyui.util.PageBean;
10 import com.easyui.util.StringUtils;
11  
12 public class UserDao extends JsonBaseDao
13    /**
14     * 用户登录或者查询用户分页的公共方法
15     * @param paMap
16     * @param pageBean
17     * @return
18     * @throws InstantiationException
19     * @throws IllegalAccessException
20     * @throws SQLException
21     */
22     public List<Map<String, Object>> list(Map<String, String[]> paMap,PageBean pageBean ) throws InstantiationException, IllegalAccessException, SQLException
23         String sql="select * from t_easyui_user_version2 where true";
24         String uid=JsonUtils.getParamVal(paMap, "uid");
25         String upwd=JsonUtils.getParamVal(paMap, "upwd");
26         if(StringUtils.isNotBlank(uid)) 
27             sql+=" and uid="+uid;
28         
29         if(StringUtils.isNotBlank(upwd)) 
30             sql+=" and upwd="+upwd;
31         
32         return super.executeQuery(sql, pageBean);
33     
34      
35      
36     /**
37      * 根据当前用户登录的id去查对应的菜单
38      * @param paMap
39      * @param pageBean
40      * @return
41      * @throws InstantiationException
42      * @throws IllegalAccessException
43      * @throws SQLException
44      */
45     public List<Map<String, Object>> getMenuByUid(Map<String, String[]> paMap,PageBean pageBean ) throws InstantiationException, IllegalAccessException, SQLException
46         String sql="select * from t_easyui_usermenu where true";
47         String uid=JsonUtils.getParamVal(paMap, "uid");
48         if(StringUtils.isNotBlank(uid)) 
49             sql+=" and uid="+uid;
50         
51          
52         return super.executeQuery(sql, pageBean);
53     
54      
55      
56 

 

UserAction

• 登录成功后跳转index.jsp
• 系统中是否有当前登录用户
• 查询用户菜单中间表，获取对应menuid的集合

 1 package com.easyui.web;
 2  
 3 import java.util.List;
 4 import java.util.Map;
 5  
 6 import javax.servlet.http.HttpServletRequest;
 7 import javax.servlet.http.HttpServletResponse;
 8  
 9 import com.fasterxml.jackson.databind.ObjectMapper;
10 import com.easyui.dao.UserDao;
11 import com.easyui.entity.TreeNode;
12 import com.easyui.util.ResponseUtil;
13 import com.zking.framework.ActionSupport;
14  
15 public class UserAction extends ActionSupport
16  
17     private UserDao userDao=new UserDao();
18     /**
19      * 登录成功后跳转index.jsp
20      * @param request
21      * @param response
22      * @return
23      * @throws Exception
24      */
25      public String login(HttpServletRequest request,HttpServletResponse response) throws Exception 
26         //系统中是否有当前登录用户
27           Map<String, Object> map = this.userDao.list(request.getParameterMap(), null).get(0);
28          
29         // 有
30          //查询用户菜单中间表，获取对应menuid的集合
31          if(map!=null && map.size()>0) 
32              //[Menuid:002,map...,Menuid:003..]
33              //[002,003]
34              StringBuilder sb=new StringBuilder();
35             List<Map<String, Object>> menuIdArr = this.userDao.getMenuByUid(request.getParameterMap(), null);
36           System.out.println(menuIdArr);
37             for (Map<String, Object> m : menuIdArr) 
38                 sb.append(","+m.get("menuId"));
39                 //,002,003
40             
41             request.setAttribute("menuIds", sb.substring(1));
42              
43             return "index";
44          else 
45              //没有
46              request.setAttribute("msg", "用户不存在");
47              // 返回登录界面
48              return "login";
49          
50              
51           
52 

MenuDao 

  1 package com.easyui.dao;
  2  
  3 import java.sql.SQLException;
  4 import java.util.ArrayList;
  5 import java.util.HashMap;
  6 import java.util.List;
  7 import java.util.Map;
  8  
  9 import com.easyui.entity.TreeNode;
 10 import com.easyui.util.JsonBaseDao;
 11 import com.easyui.util.JsonUtils;
 12 import com.easyui.util.PageBean;
 13 import com.easyui.util.StringUtils;
 14  
 15 public class MenuDao extends JsonBaseDao 
 16     /**
 17      * 给前台tree_data1_json的字符串
 18      * @param paMap 从前台jsp传递过来的参数集合
 19      * @param pageBean
 20      * @return
 21      * @throws SQLException
 22      * @throws IllegalAccessException
 23      * @throws InstantiationException
 24      */
 25     public List<TreeNode> listTreeNode(Map<String, String[]> paMap,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException
 26        List<Map<String, Object>> listMap = this.listMapAuth(paMap, pageBean);
 27        List<TreeNode> listTreeNode=new ArrayList<TreeNode>();
 28        this.listMapToListTreeNode(listMap, listTreeNode);
 29        return listTreeNode;
 30     
 31      
 32     public List<Map<String, Object>> listMap(Map<String, String[]> paMap,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException
 33         String sql="select * from t_easyui_menu where true";
 34         String menuId=JsonUtils.getParamVal(paMap, "Menuid");
 35          
 36         
 37         if(StringUtils.isNotBlank(menuId)) 
 38            sql+=" and parentid="+menuId;
 39         
 40         else 
 41            sql+=" and parentid=-1";
 42         
 43         //这里面存放的是数据库中的菜单信息
 44       List<Map<String, Object>> listMap = super.executeQuery(sql, pageBean);
 45         return listMap;
 46      
 47      
 48      
 49     public List<Map<String, Object>> listMapAuth(Map<String, String[]> paMap,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException
 50         String sql="select * from t_easyui_menu where true";
 51         String menuId=JsonUtils.getParamVal(paMap, "Menuid");
 52         //为什么将parentid改成menid？、
 53         //原因在之前的方法，只能查询当前节点的所有子集合，不能将当前节点给查出来
 54          //002-->002001,002002,002003
 55         if(StringUtils.isNotBlank(menuId)) 
 56            sql+=" and Menuid in ("+menuId+")";
 57         
 58         else 
 59            sql+=" and Menuid=000 ";
 60         
 61         //这里面存放的是数据库中的菜单信息
 62       List<Map<String, Object>> listMap = super.executeQuery(sql, pageBean);
 63         return listMap;
 64      
 65     /**
 66      * ‘Menuid‘:001,‘Menuame‘:‘学生管理‘
 67      * -->
 68      * id:..,text:...
 69      * @param map
 70      * @param treeNode
 71      * @throws SQLException
 72      * @throws IllegalAccessException
 73      * @throws InstantiationException
 74      */
 75     private void MapToTreeNode(Map<String, Object> map,TreeNode treeNode) throws InstantiationException, IllegalAccessException, SQLException 
 76         treeNode.setId(map.get("Menuid")+"");
 77         treeNode.setText(map.get("Menuname")+"");
 78         treeNode.setAttributes(map);
 79           
 80         //将子节点添加到父节点当中，建立数据之间的父子关系
 81         //treeNode.setChildren(children);
 82         Map<String, String[]> childrenMap=new HashMap<>();
 83         childrenMap.put("Menuid", new String[]treeNode.getId());
 84         List<Map<String, Object>> listMap = this.listMap(childrenMap, null);
 85         List<TreeNode>listTreeNode=new ArrayList<>();
 86         this.listMapToListTreeNode(listMap, listTreeNode);
 87         treeNode.setChildren(listTreeNode);
 88     
 89     /**
 90      * [‘Menuid‘:001,‘Menuame‘:‘学生管理‘，‘Menuid‘:002,‘Menuame‘:‘后勤管理‘]
 91      * @param listMap
 92      * tree_data1_json
 93      * @param listTreeNode
 94      * @throws SQLException
 95      * @throws IllegalAccessException
 96      * @throws InstantiationException
 97      */
 98     private void listMapToListTreeNode (List<Map<String, Object>> listMap,List<TreeNode> listTreeNode) throws InstantiationException, IllegalAccessException, SQLException
 99         TreeNode treeNode=null;
100         for (Map<String, Object> map : listMap) 
101             treeNode=new TreeNode();
102             MapToTreeNode(map, treeNode);
103             listTreeNode.add(treeNode);
104         
105     
106 

配置xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <config>
 3     <!-- <action path="/regAction" type="test.RegAction">
 4         <forward name="failed" path="/reg.jsp" redirect="false" />
 5         <forward name="success" path="/login.jsp" redirect="true" />
 6     </action> -->
 7      
 8     <action path="/menuAction" type="com.hmc.web.MenuAction">
 9     </action>
10     <action path="/userAction" type="com.easyui.web.UserAction">
11         <forward name="index" path="/index.jsp" redirect="false" />
12         <forward name="login" path="/login.jsp" redirect="false" />
13          
14     </action>
15 </config>

登录界面

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10 <form action="$pageContext.request.contextPath/userAction.action?methodName=login" method="post">
11 uid:<input type="text" name="uid"><br>
12 upwd:<input type="text" name="uname"><br>
13 <input type="submit">
14 </form>
15 <span style="color:red">$msg</span>
16 </body>
17 </html>

index.js

 1 $(function()
 2     $(‘#tt‘).tree(   
 3         url:‘menuAction.action?methodName=menuTree&&Menuid=‘+$("#menuIds").val(),
 4         onClick:function(node)
 5              
 6             var context=‘<iframe scrolling="no" frameborde="0" src="‘+node.attributes.menuURL+‘" width="100%" height="100%"></frame>‘
 7             if($(‘#menuTab‘).tabs(‘exists‘,node.text))
 8                 $(‘#menuTab‘).tabs(‘select‘,node.text);
 9             else
10                 $(‘#menuTab‘).tabs(‘add‘,   
11                     title:node.text,   
12                     content:context,   
13                     closable:true,   
14                        
15                 ); 
16             
17              
18     ); 
19  
20 )

效果图