easyUI权限

ゝ一世哀愁。 2021-12-13 01:45 310阅读 0赞

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     
     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

![1691532-20190630173305014-451324708.png][]

![1691532-20190630173316970-1872122071.png][]

转载于:https://www.cnblogs.com/xcn123/p/11110517.html

[1691532-20190630173305014-451324708.png]: /images/20211210/e0a4da63a56a4b4295631c241c5cbcac.png
[1691532-20190630173316970-1872122071.png]: /images/20211210/27e4f3f2eceb433a9a6d4ba12b3423f3.png